sharp qtcd250 grabadora
DESCRIPTION
MANUAL DE REPARACION DE GRABADORATRANSCRIPT
QT-CD250
CONTENTSPage
IMPORTANT SERVICE NOTEST (FOR U.S.A. ONLY) .................................................................................................... 2SPECIFICATIONS ............................................................................................................................................................. 2NAMES OF PARTS ........................................................................................................................................................... 3OPERATION MANUAL ...................................................................................................................................................... 4DISASSEMBLY .................................................................................................................................................................. 5REMOVING AND REINSTALLING THE MAIN PARTS ..................................................................................................... 5ADJUSTMENT ................................................................................................................................................................... 7NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 11TYPES OF TRANSISTOR ............................................................................................................................................... 11SCHEMATIC DIAGRAM .................................................................................................................................................. 12WIRING SIDE OF P.W.BOARD ....................................................................................................................................... 14WAVEFORMS OF CD CIRCUIT ...................................................................................................................................... 16TROUBLESHOOTING (CD SECTION) ........................................................................................................................... 17FUNCTION TABLE OF IC ................................................................................................................................................ 21PARTS GUIDE/EXPLODED VIEWPACKING OF THE SET (FOR U.S.A. ONLY)
• In the interests of user-safety the set should be restored to itsoriginal condition and only parts identical to those specified shouldbe used.
QT-CD250
SERVICE MANUAL
SHARP CORPORATION
No. S2014QTCD250/
This document has been published to be usedfor after sales service only.The contents are subject to change without notice.
QT-CD250
– 2 –
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFERTO THE OPERATION MANUAL.
BEFORE RETURNING THE AUDIO PRODUCT(Fire & Shock Hazard)Before returning the audio product to the user, perform thefollowing safety checks.1. Inspect all lead dress to make certain that leads are not
pinched or that hardware is not lodged between the chassisand other metal parts in the audio product.
2. Inspect all protective devices such as insulating materials,cabinet, terminal board, adjustment and compartmentcovers or shields, mechanical insulators etc.
3. To be sure that no shock hazard exists, check for leakagecurrent in the following manner.
* Plug the AC line cord directly into a 120 volt AC outlet.* Using two clip leads, connect a 1.5k ohm, 10 watt resistor
paralleled by a 0.15µF capacitor in series with all exposedmetal cabinet parts and a known earth ground, such asconduit or electrical ground connected to earth ground.
* Use a VTVM or VOM with 1000 ohm per volt, or higher,sensitivity to measure the AC voltage drop across theresistor (See diagram).
* Connect the resistor connection to all exposed metal partshaving a return path to the chassis (antenna, metal cabinet,screw heads, knobs and control shafts, escutcheon, etc.)and measure the AC voltage drop across the resistor.
IMPORTANT SERVICE NOTES (FOR U.S.A. ONLY)
All check must be repeated with the AC line cord plug connectionreversed.Any reading of 0.3 volt RMS (this corresponds to 0.2 milliamp.AC.) or more is excessive and indicates a potential shockhazard which must be corrected before returning the audioproduct to the owner.
SPECIFICATIONS
Specifications for this model are subject to change withoutprior notice.
TO EXPOSEDMETAL PARTS
CONNECT TOKNOWN EARTHGROUND
TEST PROBE
0.15 µ F
1.5k ohms10W
VTVMAC SCALE
● GeneralPower source: AC 120 V, 60 Hz
DC 9 V [ "D" size (UM/SUM-1, R20or HP-2) battery × 6]DC 4.5 V [ "AA" size (UM/SUM-3,R6 or HP-7) battery × 3 for backupmemory]
Powerconsumption: 12 WOutput power: FTC; 2.0 W min. RMS per channel
into 4 ohms from 150 Hz to 20kHz, with no more than 10 % totalharmonic distortion.RMS; 2.3 W/CH(DC operation, 10 % T.H.D.)
Speakers: 4" (10 cm) full-range speaker x 2Outputterminals:
Headphones; 16-50 ohms(recommended; 32 ohms)
Dimensions: Width; 15-3/4" (400 mm)Height; 6-1/4" (158 mm)Depth; 8-3/8" (212 mm)
Weight: 6.0 lbs. (2.7 kg) without batteries
● Compact disc playerType: Compact discSignalreadout:
Non-contact, 3-beam semi-conduc-tor laser pickup
Audiochannels: 2Quantization: 16-bit linear quantizationFilter: 8-times oversampling digital filterD/A converter: 1-bit D/A converterWow andflutter:
Unmeasurable(less than 0.001% W. peak)
● Radio
Frequencyrange:
FM; 87.5 - 108 MHzAM; 530 - 1,720 kHz
● Tape recorder
Frequencyresponse: 50 - 14,000 Hz (Normal tape)Signal/noiseratio: 50 dBWow andflutter: 0.25 % (WRMS)Motor: DC 9 V electric governorBias system: AC biasErasesystem: Magnet erase
QT-CD250
– 3 –
NAMES OF PARTS
REMOTE CONTROL
15
15
Notes:● Replace the batteries if the operating distance is
reduced or if the operation becomes erratic.● Periodically clean the transmitter LED on the
remote control and the sensor on the main unitwith a soft cloth.
● Exposing the sensor on the main unit to stronglight may interfere with operation. Change thelighting or the direction of the unit.
● Keep the remote control away from moisture,excessive heat, shock, and vibrations.
Remote Sensor
8" - 20'(0.2 m - 6 m)
11. (TAPE) Record Button12. (TAPE) Play Button13. (TAPE) Rewind Button14. (TAPE) Fast Forward Button15. (TAPE) Stop/Eject Button16. (TAPE) Pause Button17. Cassette Compartment18. CD Compartment19. (CD) Stop Button
3 (TUNER) Tuning Down Button10. (CD) Repeat Button
3 (TUNER) Band Selector Button11. (TUNER) Preset Memory Button12. Extra Bass Button13. (CD) Play/Pause Button
3 (TUNER) Tuning Up Button14. (CD) Track Up/Cue Button
3 (TUNER) Preset Up Button15. (CD) Track Down/Review Button
3 (TUNER) Preset Down Button16. Volume Up/Down Buttons17. Power/Function Switch18. (CD) Play Indicator19. (CD) Repeat Indicator
20. (CD) Pause Indicator21. Extra Bass Indicator22. (TUNER) Memory Indicator23. (TUNER) FM Stereo Mode Indicator24. (TUNER) FM Stereo Indicator25. Battery Compartment26. FM Telescopic Rod Antenna27. Headphone Jack28. AC Power Input Jack29. Backup Memory Battery Compartment30. (CD) Play/Pause Button
3 (TUNER) Tuning Up Button31. (CD) Track Down/Review Button
3 (TUNER) Preset Down Button32. (CD) Stop Button
3 (TUNER) Tuning Down Button33. (CD) Repeat Button
3 (TUNER) Band Selector Button34. (TUNER) Memory Button35. (TUNER) Clear Button36. (CD) Track Up/Cue Button
3 (TUNER) Preset Up Button37. Extra Bass Button38. Volume Up/Down Buttons
25 26 27 28
29
30
3137
34
33
32
3536
38
1 2 3 4 5 6 7 8
9
10
11
12
131415
16
17
20 21 22 231918 24
QT-CD250
– 4 –
5
4
6
13
2
1P
rep
arat
ion
fo
r u
se /
Pre
para
ción
par
a su
uso
■A
C p
ow
er■
Fu
ncc
ion
amie
nto
co
n c
orr
ien
te a
lter
na
■B
atte
ry p
ow
er■
Fu
ncc
ion
amie
nto
co
n p
ilas
To a
n A
C s
ocke
tA
un
tom
acor
rient
e de
CA
To A
C IN
PU
TA
la to
ma
AC
INP
UT
AC
120
V, 6
0 H
z12
0 V
de
CA
, 60
Hz
●6
“D”
size
bat
terie
s(U
M/S
UM
-1, R
20, H
P-2
or
sim
ilar)
●6
pila
s de
l tam
año
“D”
(UM
/SU
M-1
,R20
,HP
-2 o
sim
ilare
s)
●B
atte
ries
are
not i
nclu
ded.
●La
s pi
ans
no e
stán
incl
uida
s.
■H
ead
ph
on
es■
Au
ricu
lare
s■
Turn
ing
th
e p
ow
er O
Nan
d t
o O
FF
■C
on
exió
n(O
N)
y
des
con
exió
n(O
FF
) d
e la
a
limen
taci
ón
TUN
ER
OFF
PO
WE
R
■V
olu
me
con
tro
l■
Co
ntr
ol d
el v
olu
men
Qui
ck G
uide
/ G
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2L
iste
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o a
CD
/ A
udic
tión
de d
isco
s C
D
To s
top
the
play
back
Pre
ss th
e ■
but
ton.
TU
NIN
GP
LA
Y /
PA
US
EO
FFP
OW
ER
●La
bel s
ide
up.
●C
on e
l lad
o de
la
etiq
ueta
e
ncar
ada
haci
a
arr
iba.
Par
a d
eten
er la
rep
rod
ucc
ión
Pul
se e
l bot
ón ■
.
12
34
5TU
NE
R
3L
iste
nin
g t
o a
tap
e /
Au
dic
tión
de
un
a ci
nta
TUN
ER
OFF
PO
WE
R
4L
iste
nin
g t
o t
he
rad
io /
Au
dic
tión
de
la r
adio
5R
eco
rdin
g f
rom
CD
s / G
rab
acio
nes
de
dis
cos
CD
TUN
ER
OFF
PO
WE
R
●Lo
ad th
e di
sc to
be
r
ecor
ded.
●In
trod
uzca
el d
isco
que
va a
gra
bar.
12
3
12
3
13
4
BA
ND
RE
PE
AT
TU
NIN
GT
UN
ING
PL
AY
/ P
AU
SE
ST
OP
TUN
ER
OFF
PO
WE
R
2T
UN
ING
PL
AY
/ P
AU
SE
Par
a d
eten
er la
rep
rod
ucc
ión
Pul
se e
l bot
ón
.
To s
top
th
e p
layb
ack
Pre
ss th
e
b
utto
n.
To s
top
th
e re
cord
ing
Pre
ss th
e
b
utto
n.
Par
a d
eten
er la
gra
bac
ión
Pul
se e
l bot
ón
.
OPERATION MANUAL
QT-CD250
– 5 –
1 Top Cabinet/ 1. Screw ................... (A1) x7 5-1Front Cabinet 2. Socket .................. (A2) x1
3. Screw ................... (A3) x1
2 Power PWB/ 1. Screw ................... (B1) x2 5-2Terminal PWB 2. Hook ..................... (B2) x2
3. Socket .................. (B3) x14. Hook ..................... (B4) x2
3 Switch PWB 1. Screw ................... (C1) x2 5-22. Socket .................. (C2) x13. Hook ..................... (C3) x24. Screw ................... (C4) x4
4 Main PWB/ 1. Socket .................. (D1) x1 5-2CD Control PWB 2. Screw ................... (D2) x7(Note) 3. Screw ................... (D3) x1
4. Solder ................... (D4) x35. Socket .................. (D5) x3 5-36. Screw ................... (D6) x67. Hook ..................... (D7) x2
5 CD Mechanism 1. Screw ................... (E1) x3 5-3
6 Tape Mechanism 1. Screw ................... (F1) x4 5-3
DISASSEMBLYCaution on DisassemblyFollow the below-mentioned notes when disassembling theunit and reassembling it, to keep it safe and ensure excellentperformance:1. Take cassette tape and compact disc out of the unit.2. Be sure to remove the power supply plug from the wall
outlet before starting to disassemble the unit.3. Take off nylon bands or wire holders where they need to
be removed when disassembling the unit. After servicingthe unit, be sure to rearrange the leads where they werebefore disassembling.
4. Take sufficient care on static electricity of integratedcircuits and other circuits when servicing.
STEP REMOVAL PROCEDURE FIGURE
Figure 5-3Figure 5-1
Figure 5-2
CD MECHANISM SECTIONPerform steps 1 to 4 of the disassembly method to remove theCD mechanism.How to remove the pickup (See Fig. 5-4.)1. Remove the screws (A1) x 2 pcs., to remove the shaft (A2)
x1 pc.2. Remove the stop washer (A3) x1 pc., to remove the gear
(A4) x 1 pc.3. Remove the pickup. Stop
Washer(A3) x1
CD Mechanism
Gear(A4) x1Shaft
(A2) x1
Pickup
(A1) x2ø2.6 x6mm
REMOVING AND REINSTALLING THE MAIN PARTS
Figure 5-4
Note : (Figure 5-3 and Figure 5-4) After removing the connector for the optical pickup from the
connector, wrap the conductive aluminium foil around thefront end of connector to protect the optical pickup fromelectrostatic damage.
Top Cabinet
AC Socket(B1)x2ø3x12mm
(D2)x7ø3x12mm
(C1)x2ø3x12mm
(C4)x4ø3x10mm
(D3)x1ø2.5x8mm
Main PWB
Power PWB
(D4)x3
(B3)x1
(B2)x2
(B4)x2
(D1)x1
CD Lid Switch
Power Transformer
TerminalPWB
(C3)x2
Switch PWB
(C2)x1
(E1)x3ø2.5x10mm
(F1)x4ø3x10mm
(D5)x1
(D5)x2
Top Cabinet
(D6)x6ø3x8mm
(D7)x2
Washer
CD Mechanism
CD Control PWB
TapeMechanism
(A1)x3ø3x12mm
Top Cabinet
Front Cabinet
(A1)x4ø3x12mm
SP202R-CH
MainPWB
(A2)x1
(A3)x1ø3x10mm
QT-CD250
– 6 –
TAPE MECHANISM SECTIONPerform steps 1 to 6 of the disassembly method to remove thetape mechanism. (See page 5.)
How to remove the record / playback and eraseheads (See Fig. 6-1.)1. Remove the screws (A1) x 2 pcs., to remove the record/
playback head.2. Remove the hooks (A2) x 2 pcs., toward the center position
as shown in Fig. 6-1. and then extract the erase headupward.
Note:After replacing the heads and performing the azimuthadjustment, be sure to apply screwlock.
How to remove the pinch roller (See Fig. 6-2.)1. Carefully bend the pinch roller pawl in the direction of the
arrow <A>, and remove the pinch roller (B1) upwards.
How to remove the belts (See Fig. 6-3.)1. Remove the main belt (C1) x 1 pc., from the motor pulley.2. Remove the FF/REW belt (C2) x 1 pc., from the REW/FF
roller.3. Put on the belts in the reverse order of removal.Note:When putting on the belt, ascertain that the belt is not twisted,and clean it.
How to remove the motor (See Figs. 6-4.)1. Remove the mainbelt.2. Remove the screw (D1) x 1 pc., to remove the motor mount.3. Remove the screws (D2) x 2 pcs., to remove the motor.Note:When mounting the motor, pay attention to the motor mountingangle.
How to remove the flywheel (See Fig. 6-5.)1. Remove the belt.2. Remove the stop washer (E1) x 1 pc., with a small precision
screwdriver to extract the flywheel from the capstan metal.Note:When the stop washer is deformed or damaged, replace itwith a new one.
How to reinstall the partsInstall each part in the reverse order of the removal with care.
Figure 6-1
Figure 6-2
Figure 6-3
Figure 6-4
Figure 6-5
(A1) x1ø2x7mm
(A1) x1ø2x3mm
Record/PlaybackHeadErase Head
Hook(A2)x2
<A>Pinch Roller(B1)x1
Pinch RollerPawl
Motor
REW/FFClutch Ass'y
Flywheel
FF/REW Belt(C2)x1
Main Belt(C1)x1
(E1) x 1Stop Washer
Washer
Flywheel
(D1)x1SpecialScrew
Motor Mount
Motor
(D2)x2SpecialScrew Motor
Mount
Motor
QT-CD250
– 7 –
MECHANISM SECTION• Driving Force Check
PLAY: TW-2412 Over 120 g
Torque Meter Specified Value
• Torque CheckTorque Meter Specified Value
Play: TW-2111 25 to 65 g.cm
Fast Forward: TW-2231 60 to 130 g.cm
Rewind: TW-2231 60 to 130 g.cm
• Tape Speed
MTT-111 Variable 3,000 ± 90 Hz Output: Speakerresistor in Teaminalmotor. (M601) (CNP201 Load
resistance: 4 ohms)
InstrumentConnection
SpecifiedValue
TestTape
TAPE SECTION Position of each switch or control
Volume control MaxFunction switch Tape/Power OffX-BASS On
• Bias OscillationAdjustment Point
• Playback Amplifier Sensitivity CheckInstrument ConnectionTest Tape
MTT-118 1.1 V ± 3 dB Speaker Terminal(Load resistance: 4 ohms)
Specified Value
ADJUSTMENT
Figure 7 ADJUSTMENT POINTS
• Head AzimuthTorque Meter Specified Value
MTT-114 Output: Speaker Terminal(CNP201 Load resistance: 4 ohms)
AdjustingPoint
Specified Value InstrumentConnection
L301 82 kHz ± 6 kHz Pin 2 of CNP201 - 6 kHz
• AM IF/RFSignal generator: 400 Hz, 30%, AM modulated
TUNER SECTIONfL: Low-range frequencyfH: High-range frequency
AM IF 450 kHz 1,720 kHz T3 *1
AM Band — 530 kHz (fL): L4 *3Coverage 1.0 ±0.05V
AM Tracking 600 kHz 600 kHz (fL): L3 *21,400 kHz 1,400 kHz (fH): TC1
Test Stage Frequency FrequencyDisplay
Setting/Adjusting
Parts
InstrumentConnection
*1. Input: Antenna, Output: TP1*2. Input: Antenna, Output: Speaker terminal
• FM RFSignal generator: 1 kHz, 75 kHz dev., FM modulated
FM Band — 87.5 MHz (fL): L2 *1Coverage 1.7 V ± 0.05V
FM RF 98.0 MHz 98.0 MHz L1 *2(10-30 dB)
Test Stage InstrumentConnection
Frequency FrequencyDisplay
Serring/Adjusting
Point
*1. Input: Antenna, Output: Pin 16 of IC1*2. Input: Antenna, Output: Speaker Terminal*3. Input: Input is not connected, Output: TP1
SW102
CNP101
L301
CNP602
R7
L1
L2
IC1
T3
TC1
HPJ201HEADPHONE
L4
IC1011
12
11
2
CNP201123
123
FM IF
AM BANDCOVERAGE fL
TP1
L3AM BARANTENNA
AMTRACKING fL
AMTRACKING fH
AM IF
1
13
16
12
24
FM BANDCOVERAGE fL
BIAS OSC. 1234
MAIN PWB
QT-CD250
– 8 –
A. CD TEST MODESet the function switch to "CD" when pressing the "REVIEW(PRESET DOWN )" button together with "STOP(TUNING DOWN)"button.
Step-1. CD Pickup can be move when press the "CUE" button either "REVIEW" button."CUE" button : CD Pickup move to out side of disc."REVIEW" button : CD Pickup move to in side of disc. (CD Pickup can't move any more, if reach to most in side.)Note: If the CD Lid open (SW810 open), the unit can be operate Step-1 only and the unit can't operate from Step-2 to Step-5.
Step-2. The LASER light up when press the "PLAY/PAUSE" button.
Step-3. CD disc can be playing mode when press the "PLAY/PAUSE" button during the LASER ON.
The LCD displays indicate the "Track Number" and the "Playing Time".
Step-4. CD disc will be stop and the LASER goes out when pressing the "STOP" button, and return back to Step-1. (CD Pickupposition keeps at that point).
Step-5. It can be control to ON/OFF of the Tracking Servo when press the "MEMORY" button during the CD playing mode. (The Servo will be ON when playing mode again, if to make stop mode during the Servo OFF condition.)
The LCD displays indicate the playing time of CD Pickup point.(The LCD displays indicate the playing time at that point when Pickup moving, if press the "CUE" button or press the "REVIEW"button.)
QT-CD250
– 9 –
B. TUNER TEST MODESet the function switch to "TUNER" when pressing the "REVIEW(PRESET DOWN )" button together with "BAND(REPEAT)"button.
The LCD displays indicate the "TunEr" for several seconds. after that, the LCD displays indicate to the normal frequency.
Note:1. The Preset Channel can be change when press the "PRESET UP (CUE) button either "PRESET DOWN (REVIEW)" button. PRESET UP button is pressed : P-01 -> P-02 -> > > > > P-15 -> P-01 PRESET DOWN button is pressed : P-15 -> P-14 -> > > > > P-01 -> P-152. The Tuner Mode can be change when press the "BAND (REPEAT)" button. BAND button is pressed : FM stereo -> FM mono -> AM -> FM stereo
PRESET.NO
U.S.A. FM MODE
P-01 FM 87.5 MHz STEREO
P-02 FM 108.0 MHz STEREO
P-03 FM 98.0 MHz STEREO
P-04 FM 90.0 MHz STEREO
P-05 FM 106.0 MHz STEREO
P-06 AM 530 KHz
P-07 AM 1720 KHz
P-08 AM 990 KHz
P-09 AM 600 KHz
P-10 AM 1400 KHz
P-11 FM 106.0 MHz MONO
P-12 FM 90.0 MHz MONO
P-13 FM 98.0 MHz MONO
P-14 FM 108.0 MHz MONO
P-15 FM 87.5 MHz MONO
C. LCD TEST MODESet the function switch to "TUNER (or CD)" when pressing the "REVIEW(PRESET DOWN )" button together with "MEMORY"button.
All of the segments will light up.
QT-CD250
– 10 –
D. VOLUME TEST MODESet the function switch to "POWER ON (TAPE PLAY, TUNER or CD)" when pressing the "REVIEW(PRESET DOWN )" buttontogether with "PLAY/PAUSE (TUNING UP)" button.The LCD display do not indicate the VOLUME level at this time.But, the VOLUME level is "12" which is defaults level.
The VOLUME LEVEL can be change when press the "VOLUME UP" button either press the "VOLUME DOWN" button."VOLUME UP" button is pressed : (12 VoL) -> 30 VoL -> 30 VoL (30 is flashing)
"VOLUME DOWN" button is pressed : (12 VoL) -> 1 VoL-> 0 VoL -> 0 VoL (0 is flashing)
QT-CD250
– 11 –
NOTES ON SCHEMATIC DIAGRAM 1. Tuner
( ): AM modeMarking except for ( ): FM mode
2. CD( ): Play modeMarking except for ( ): Stop state
3. Deck section( ): Record modeMarking except for ( ): Playback modeDisplay / Control section:( ): Active stateMarking except for ( ): CD Function mode at stop state
• Schematic diagram and Wiring Side of P.W.Board for thismodel are subject to change for improvement without priornotice.
• Parts marked with “ ” ( ) are important formaintaining the safety of the set. Be sure to replace theseparts with specified ones for maintaining the safety andperformance of the set.
• Resistor:To differentiate the units of resistors, the symbol as K and Mare used: the symbol K means 1000 ohm and the symbol Mmeans 1000 kohm and the resistor without any symbol is anohm resistor. The resistor designated "Fusible" is a fuse typeresistor
• Capacitor:To indicate the unit of capacitor, a symbol P is used: thissymbol P means micro-micro-farad and the unit of the capacitorwithout such a symbol is microfarad. As to electrolytic capacitor,the expression “capacitance/withstand voltage” is used.(CH), (TH), (RH), (UJ): Temperature compensation(ML): Mylar type(P.P.): Polypropylene type
• The indicated voltage in each section is the one measured byDigital Multimeter between such a section and the chassiswith no signal given.
SW102 RECODE/PLAYBACK REC—P.B.
SW201 FUNCTION SELECTOR TAPE/OFF—TUNER/ON—CD/ON
SW601 TAPE MAIN OFF—ON
SW702 PICKUP IN OFF—ON
SW801 PLAY/PAUSE/ OFF—ONTUNING UP
SW802 STOP/TUNING DOWN OFF—ON
SW803 REPEAT/BAND OFF—ON
SW804 TUNER/MEMORY OFF—ON
SW805 CUE/PRESET UP OFF—ON
SW806 REVIEW/ OFF—ONPRESET DOWN
SW807 VOLUME UP OFF—ON
SW808 VOLUME DOWN OFF—ON
SW809 X-BASS OFF—ON
SW810 CD LID OFF—ON
REF. NO DESCRIPTION POSITION
Figure 11 TYPES OF TRANSISTOR
E C B(S)(G)(D)(1) (2) (3)
FRONTVIEW
KRA102 MKRC107 MKTA1046 YKTA1266 GRKTA1273 YKTC3199 GR
QT-CD250
– 12 –
A
B
C
D
E
F
G
H
1 2 3 4 5 6
• The numbers 1 to 17 are waveform numbers shown in page 16.
Figure 12 SCHEMATIC DIAGRAM (1/2)
COR1
C85
610
0P
C29
10
0PR
865
47K
D8041N4148
C75100P
C34
220P
C33220P
C50.1
COR801
BI8
01B
I802
C8050.022
C806330/10
R85
32.
2K
R85
22.
2K
C8070.047IC803
LA6541D
30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
151413121110987654321
R8512.2K
R76820
L51100µH
C54
0.02
2
R1310K
R18100
C68
220P
R77
3.3KR17
47K
R142.2K
C58 100P
C57 100P
C18 0.001
R20470
R87
94.
7K
D8061N4148
R86247K1
R86110K
CF4
R854100
C121/50
R1
R58
1K
R1539K
R714.7K
R743.3K
R733.3K
C26
0.1
C2310/16
C70.001
R410
L2
R84522KR866
3.3K
D8021N4148
C24
51/
50
C24
333
0PC
244
330PR242
10K
R24110K
C2421/50
C2411/50
R2402.2K
R2392.2K
R2382.7K
C22
40.
1/50
C22
30.
1/50
R2372.7K
R23
647
KR
235
47K
R2332.2K
R2342.2K
SW201-C
SW201-B
C9
0.02
2
C10
8P
L803220µH
R8501.5K
1
R249220
C741/50
R724.7K
C82547/16
C24
722
0/10
R24
756
0R
248
560
R2465.6K
R244560K
R243560K
R2455.6K
R51150C61
100/10
C731/50
R5410K
R3544.7
R35333K
C3530.0056(ML)
R352150
C3540.022(ML)
C352100/10
R351100
R126100
L301
C35
10.
0022
(ML)
R12
43.
3KR
123
3.3K
R1212.7K
R1222.7K
X514.5MHz
R45615K
R4581K
R4571K
R45515K
R62
1K
R61
1KR60
1K
R59
1K
C600.0022C
590.
01
C552.2/50
R53
4.7K
R522.2K
C53
100/
10
TC
1
R8
220K
C11360P
VD3KV1520NT
C250.047
F1
C27
0.00
1
C80.001
R615KR
210
0K
C24
0.1
C192.2/50
R12
10
R710K
VD
2K
V13
70N
T
R5
22K
C6
22P
(CH
)
C320.1
R1
3.3K C3
0.01
L1C20.001V
D1
KV
1370
NT
R3
100K
C1
15P
(CH
)
C8300.01(ML)
C8280.0027
C8290.0047
R8323.3K
C8270.015(M
R82715K
C835470P
R8313.3K
R83010K
R8293.3K
R8121K
R8343.3K
C8330.033(ML)
R8333.3K
C8540.0068
IC80
1T
A21
09F
24
23
22
2120191817
1615
141312
11109 8
7 6 5 4 3 2
1
C8190.1(ML)
R8022.2K
C81856P
C8220.047
C86347/16
C8410.047
C8420.047
C84347/16
C82647P
R82
622
0K
D11N4148
R16
3.3K
C
221/
50
C14 0.047
C71
0.02
2(M
L)
C72
0.
022
(ML)
C16
4.7/
50
CF1 CF3 T3
C15
220/
10
R10
330
C13
0.47
/50
IC1
24 23 22 21 20 19 18 17 16 15 14 13
1211109876 54321
C2110/16
C20
330P
C5115P(CH)
C5212P(CH)
IC51 LC72121
2221201918171615141312
11 10 9 8 7 6 5 4 3 2 1
R5556K
C56
0.02
2
C821100/10
R8062.7K
R8071K
C8010.01
R80539K
C8200.1(ML)
R81
122
K
C80
42P
(CH
)
R80382K
C81347/16
C8140.047
R80468K
D10
11N
4148
R110120
R1081K
R1153.9K
C11810/16
R125680K
R10412K
R10312K
C12
10.
01C11347/16
C110270P
R1148.2K
R1138.2K
C11
92.
2/50
C1050.0018
R101330
R12
03.
3K
R10515K
C112330P
R1163.9K
C1160.018(ML)
R10615K
C1060.0018
C12
20.
01
R11
93.
3K
R1183.9K
CN
P10
1
R102330
C11
710
/16
D10
21N
4148
C1150.018(ML)
R1071K
C111330P
C108820P
R1173.9K
C12
047
/16
C123220/10
C11447/16
C109270P
C107820P
R109120
IC101BA3311L
1211
10
9
8
76
5
4
3
2
1
C81
710
0/10 C816
0.022
C81547/16
BI8
03
C8020.022
R82
047
K
X80
116
.93M
Hz
C8380.047(ML)
C8390.047(ML)
C834470P
C8360.047(ML)
C8450.047
C8370.047(ML)
R82810K
R80122
C83247/16
NC
NC
NC NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
Speaker Case
MO
NO
/S
T
FM
/AM
BO
1
PD
VS
SD
BO
4
BO
3
BO
2
DO
CL
VS
SA
VC
O
FM
/AM
IND
ST
OU
T
AM
IF
IF
MIX
FM
RF
R-C
H
L-C
H
FM DET
AM IF
FM
OS
C
FM RF
MP
X IN
DE
T
OS
C
OU
T
IN
AM
OS
C
FM
AM
RF
OS
C
INGN
D
AM
LO
WC
UT
OU
T
VC
C
INFM
IF
AG
C
GN
D
LPF
2
LPF
1
RE
Q
RF
OU
T
VC
C
FM
RF
FM
RF
IN
QU
AD
TU
CD
AO
UT
IO2
IFIN
AM
IN
FM
IN
AIN
VD
D
IO1
DI
CE
XIN
X
OU
T
CDR-CH
L-CH
TRO
FOO
DMO
FMO
VC
C
VR
EF
CD
RE
S
RE
G IN
RE
G O
UT
VIN
4
VIN
3V
IN2
GN
D
GN
D
7.5V
GN
D
GN
D
GN
D
VG
4
VG
3 V
G2
VO
4-
VO
4+
VO
3-
VO
3+V
O2+
VO
2-
VO
1-
VO
1+
VG
1
VIN
1
MT
VC
C
SW810
OPEN/CLOSECD LID
CN
S80
2C
NS
801
CN
S80
3
R-C
H(C
D)
L-C
H(C
D)
GN
D(A
UD
IO)
+7.5V(CD)
CN
P80
3
FMROD ANTENNA
-
+ SW601TAPEMAIN
M601TAPEMOTOR
ALC T
FILTER
VCC
GND
NF1
NF2 IN2
IN1
OUT2
OUT1
R
P R
P
PRP
PP
R
R
R
R PRE AMP
TA
TU
TA
P
M702SPINDLEMOTOR
M701SLEDMOTOR
SW702PICKUP IN
+
+
-
-
SP+
SP-
SL+
SL-
PU-IN
LD
K
E
E
K
LD
VR
PD
G
B
B
A
F
F C
TR+
TR-
FO+
FO-
R-
R+
2200P
2200P
CD MOTOR PWB-B
FC-
FC+
TR-
TR+
GND
GND
K
F
B
E
A
VCC
FNI
FPI
TPI
TNI
MDI
LDO
SEL
TEB
2VRO
TEN
TEO
RFN
GND
RFO
AGCI
RFGC
RFGO
RFIS
RFRP
VRO
FEN
FEO
SBAD
MON
1M
1MLTOH30P1
SLT-
SLT+
FM-
FM+
DM-
DM+
8 7
6 5
4
6
7 8
3
2 1
4 3
2 1
5 4 3
2 1
8 7
6 5
2
4
3 2 1
5
1
3 2 3
4 5
1
5 4
11
14
1312
107
89
M
12
2
13
2
1 3
TA2104BN
43
12
9
13
22
M
M
123
456
SW102-D
SW102-H
SW102-E
SW102-A SW102-F
SW102-GSW102-B
SW102RECORD/PLAYBACK
A
PICK-UP UNIT
LD
VR
PD
F+
F-
123
456
123
456
SW102-C
8 7
P 6 5 4 16 17 18
3 2 1
Q801KTA1266 GR
L3AM BAR ANTENNA
FM BANDPASS
FILTER
2 31
SW102RECORD/PLAYBACK
19 20 21
14 15
23 24
Q1KTC3199 GR
R
Q351KTC3199 GR
11 10
Q210KTC3199 GR
Q209KTC3199 GR
VS
SX
1
2
3
Q803KRC107 M
2 3
Q802KTA1273 Y
Q806KTA1273 Y
Q805KRC107 M
23
Q804KTA12SWITC
Q2KRA102 M
TUNERSWITHCING
Q21
1K
TC
3199
GR
Q21
2K
TC
3199
GR
4.4V
1.9V
1.9V
0.5V
0.5V
0V
3.8V
0V
0V
3.7V
1.9V
1.9V 0.8V
1.9V
1.9V
1.9V
0.9V
1.9V
1.9V
0.5V
1.9V
0.1V
GND
1.9V
VC
C
1.9V
1.9V
3.4V
3.4V
GN
D
GN
D
GN
D
3.4V
3.4V
1.9V
1.9V
1.
9V
1.9V
3.4V
3.4V
3.4V
3.4V
1.9V
1.9V
7.5V
LASER DRIVER
4.4V(ON:2.8V)1.4V(ON:1.9V)
3.7V(ON:2.1V)
SWITCHING7.5V
7.5V
(TU
N:0
V)
6.9V
(TU
N:7
.5V
)
GNDSWITCHING
0V(TUN:7.5V)
4.5V
(TU
N:
0.5V
)
4.4V
GND
0V(TUN:7.5V)
4.4VSWITCHING
5.0V5.0V(TUN:0V)
4.3V(TUN:5.0V)
SWITCHING
IC801SERVO PRE AMP.
TA2109F
8
9
10
IC803FOCUS/
TRACKING/SPIN/
SLED DRIVERLA6541D
23
AM BANDCOVERAGE fL
FM BANDCOVERAGE fL L2
987654321
121110
PINNO. VOLTAGE
IC1
0.82V(0V)0V(0V)0.V3.5V(4.1V)3.7V(4.1V)3.2V(4.1V)3.7V(4.1V)GND0.4V(0.1V)3.0V(3.6V)1.2V1.2V
212019181716151413
242322
PINNO. VOLTAGE
2.9V(0V)3.1V0.7V1.0V0.9V5.0V3.6V(4.0V)3.7V(4.1V)3.7V(4.1V)3.7V(4.1V)3.7V(4.1V)3.7V(4.1V)
( ): AM
CN
S10
1
L-CH
R-CH
ERASE HEAD
4
3
2
1
RECORD/PLAYBACK HEAD
TAPE
IC51LC72121ELECTRONICTUNING
IC1FM/AM IF MPX.,TA2104BN
IC101REC./P.B.EQUALIZER AMP.BA3311L
L4AM OSC.AM TRACKING fL
AM TRACKING fH
AM IF
FM IF
0.6V
0V
0V
0.6V 3.2V
3.1V
7.3V
7.3V
0V
VOLTAGE:PLAY and REC.
SW102RECORD/PLAYBACK SW102
RECORD/PLAYBACK
SW102RECORD/PLAYBACK
SW201FUNCTIONSELECTOR
BIAS OSC.
SW102RECORD/PLAYBACK
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B +B
+B
+B
+B
987654321
121110
PINNO.
IC51
1.6VGND0.V0V0V4.9V-3.1V2.9V0V5.0V0V0.9VGND0V1.5V3.2V0.9V0.9V1.7VGND1.6V
212019181716151413
22
VOLTAGEFM ST FM MONO AM
1.6VGND0.V0V0V4.9V-0V2.9V0V5.0V0V0.9VGND0V1.5V3.2V0.9V0.9V1.7VGND1.6V
2VGND0.V0V0V4.9V-0.7V0V0V5.0V0V0.9VGND2.0V0V4.2V0.9V0.9V1.0VGND2.6V
0V
GND0V
5.0V
5.0V(CD: 0.4V)
GN
D(C
D: O
PE
N)
TUNERMUTE
0V0V (R
EC
: 4.0
V)
0V(REC: 0.4V)
BIAS OSC.
0VG
ND
0V(OFF:0.6V)
0V(OFF:0.6V)
0VG
ND
0.2V
0.2V
2.0V
2.0V
0.8V
0.8V
Q209,Q210 X-BASS ON/OFF
Q211,Q212 LINE AMP
QT-CD250
– 13 –Figure 13 SCHEMATIC DIAGRAM (2/2)
7 8 9 10 11 12
• NOTES ON SCHEMATIC DIAGRAM can be found on page 11.
+B
C3020.022
C87
20.
0047
L807
0.82
µH
C24
910
0PC
204
0.02
2D
202
1N41
48
C870100P
R8714.7K
R25
33.
9K
R85
615
K
FW
801
FW
802
R21
41K
R21
51K
R21
61K
R2101K
R2091K
R21
88.
2KR
217
8.2K
D8061N4148
R86247K1
C201100/16
C2301/50
R2224.7K
C2141/50
R2214.7K
C2131/50
R87
04.
7K
R86
94.
7K
LCD801
2019181716151413121110987654321
CN
P60
2
CN
S60
2
SW809X-BASS R857
47K
R854100
C2260.022
CN
S80
1
CN
P80
1
D80
31N
4148
R85518K
R8415.6KR848
10KR84918K
R8475.6K
R8434.7K
R8464.7K
R8211K
R87610K
C8620.1
X8024.19MHz
C84
61/
50
D80
51N
4148
C2110.047
C2120.047
R20
210
K
R2054.7K
C20
30.
01
C20247/16
R2011.2K
R203270 Z
D20
1D
Z5.
1BS
B
D20
31N
4148
R90147K
R90047K
R89947K
R89847K
R89747K
R89647K
R89547K
R89447K
R89347K
R89247K
R89147K
R89047K
R88947K
R88847K
R88747K
R88647K
R88547K
R88447K
R88347K
R88247K
C86
510
0/10
C86
40.
1
R8734.7K
R87810K
R87710K
R87510K
R86
84.
7K
C2311/50
R25122K
R25222K
C2291/50
D80
11N
4148
C24
51/
50
C24
333
0PC
244
330PR242
10K
R24110K
C2421/50
C2411/50
R2402.2K
R2392.2K
R2382.7K
R2372.7K
C2321/50
R8724.7K
R86
74.
7K
R82510K
R83
947
K
R86
04.
7KR
863
1.8K
C84
722
/16
C84
822
/16
C85
30.
022C84
410
0/10
R836270
R835270
C2201/50
C2191/50
C21
00.
022 D
204
1N41
48
D20
51N
4148
R206560
R2042.2K
C20
647
/16C
209
0.01
ZD
202
DZ
7.5B
SB
R213100
R21
247
KR
211
47K
R225100K
C65
30.
022
D65
31N
4004
D65
21N
4004
C65
20.
022
D65
41N
4004
D65
11N
4004
C65
40.
022
C65
10.
022
R249220
R2244.7K
C24610/16
R2234.7K
C82547/16
D20
11N
4148
R86
41M
L801220µH
R250470K
C24
722
0/10
R24
756
0R
248
560
R2465.6K
R244560K
R243560K
R2455.6K
SW201-DSW201-A
R2302.7
R3544.7
515MHz
R45615K
R4581K
R4571K
R45515K
ZD203ZD2.4BSB
C81010/16
R808100
C8300.01(ML)
C8280.0027
C8290.0047
R8323.3K
C8270.015(ML)
R82715K
R8313.3K
R83010K
R8293.3K
R8121K
R8343.3K
C8330.033(ML)
R8333.3K
C82
30.
022
C8400.1
C8540.0068
IC802SERVO/SIGNAL
CONTROLTC9457F2
10099989796959493929190898887868584838281
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31
30
29
28
27
26
25
24
23
22
21
20
191817161514
13121110987 654321
C8523.3/50
C8513.3/50
C8490.0022
C8500.0022
R84
422
K
C82647P
R82410K
R82
622
0K
R84
222
K
R83810K
R83710K
R207560
C207470/10
C2080.022C20547/16
C21
80.
0015
(ML)
C21
70.
0015
(ML)
R220220K
IC202
161514131211109
8 7 6 5 4 3 2 1
C21
60.
1(M
L)
R219220K
C21
50.
1(M
L)
C23
610
0/10
R23
212
0
C22
10.
001
C22
20.
001
C23
510
0/10
R231120
C22
510
0/10
1413
12
2
3
9
5
6
7
8
4
10
11
1
C2390.1(ML)
C23
810
0/10
C237100/10
C234470/10
C233470/10
CN
P20
1
R228120
R227120
HPJ201HEADPHONES
R82
047
K
X80
116
.93M
Hz
ML)
C82
447
/16
ML)
C8450.047
ML)
R82810K
R84010
C22
747
00/1
6
NC
NC
NC
NC
NC
X-BASS
SWITCH PWB-A4
P_M
UT
E
ST
B_(V
OL)
CE
_(PLL)
CDPOWER
HO
LD
7.5V
5V
X-B
AS
S
TUNER-FUNC
SEG17
CL
DI
DO
CD-FUNC
KEY2
KEY1
ADIN3
SEG16
SEG15
VS
S
ST
BD
AT
A
CK
CS
+5V
(u C
OM
)
+4.
5V(B
AC
K U
P)
DC 9V ["D" size (UM/SUM-1,R20 orHP-2) battery x 6]
TAPETUN TUN
ST
MEMORY
KHz
MHz
CN
S20
1
BATTERY
NC
NC
NC
NC
SP202
SP201
POWER PWB-A3
R-C
H(C
D)
L-C
H(C
D)
GN
D(A
UD
IO)
GN
D(P
OW
ER
)
GN
D(C
D)
SPEAKERS
L-CH
R-CH
4 OHM
4 OHM
+5V
(CD
)
SELECTOR
-
+ SW601TAPEMAIN
M601TAPEMOTOR
TAPE
CD CDAC/DC
AC INPUT
-
-
+
+
IC20
1T
A82
27P
PO
WE
R A
MP
.
MVSS1
MVDD1
SEG1CO
M1
MV
DD
MV
SS
MX
I
MX
O
RE
MO
-IN
RE
SE
T
DV
SL
LO
DV
RL
DV
DD
DV
RR
RO
DVSR
TE
ST
0
DO
UT
SB
SY
SB
OK
VD
D1
VS
S1
P2V
RE
F
PD
O
TM
AX
LPFN
LPFO
PVREF
VCOF
AVSS
SLCO
RFI
AVDD
RFCT
RFZI
RFRP
FEI
SBAD
TEI
TEZI
FOO
TRO
VREF
RFGC
TEBC
FMO
DMO
2VREF
SEL
VDD2
VSS2
XI
XO
XVDD
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
SEG13
SEG14
DOOR IN
PU IN
TE
ST
1
TE
ST
2
TE
ST
3
TE
ST
4
TE
ST
5
XVSS
CO
M2
CO
M3
CO
M4
NC
CD CONTROL PWB-A2
SO651AC INLETSOCKETAC 120V,60Hz
T651POWER TRANSFORMER
12 12
123
2
4
1
3
2
4
1
3
Q204KTA1273Y
1617
18
19
1
4
3
2
M
5
4
7
6
1
3
2
12
3
12
3
199 GR
Q210KTC3199 GR
Q209KTC3199 GR
1
2
3
Q805KRC107 M
23
Q804KTA1266 GRSWITCHING
Q2A102 MUNERTHCING
Q21
1K
TC
3199
GR
Q21
2K
TC
3199
GR
Q20
5K
TC
3199
GR
Q206KTA1046 Y
Q20
7K
TC
3199
GR
Q203KTA1266 GR
C2400.1(ML)
Q20
1K
TC
3199
GR
Q20
2K
TC
3199
GR
VD
D
11 11
10 10
9 9
7 7
6 6
5 5
4 4
1 1
2 2
3 3
8 8
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
9 9
10 10
11 11
SW808VOLUME DOWN
SW807VOLUME UP
UN801REMOTO SENSOR
N64H380A
3
123
DC 4.5V ["AA" size (UM/SUM-3,R6 orHP-7) battery x 3 for backup memory]
BATTERY
LCD DISPLAY
TERMINAL A PWB-A5/TERMINAL B PWB-A6
MAIN PWB-A1
5.0V
0.6V(TUN: 5.0V)
4.9V(TUN: 0V)
0V
5.0V(TUN:0V)
0V(TUN: 5.0V)
5.0V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
5.0V
GND
0V(TUN: 4.9V)
5.0V(TUN:0V)
0VGN
D
GN
D
GN
D
GN
D
GN
D
GND
GN
D0V
0V
0V(T
UN
:5.0
V)
0V(X
-BA
SS
OF
F:4
.9V
)
4.4V
(TU
N:0
V)
GN
D3.
7V(T
UN
:0V
)1.9V
(TU
N:0
V)
0V
1.5V
(TU
N:0
V)
3.7V(TUN:0V)
1.9V(TUN:0V)
1.7V(TUN:0V)
GND
1.9V(TUN:0V)
1.9V(TUN:0V)
4.4V(TUN:0V)
1.9V(TUN:0V)
1.9V(TUN:0V)
0.9V(TUN:0V)
1.9V(TUN:0V)
0.7V(TUN:0V)
1.9V(TUN:0V)
1.9V(TUN:0V)
1.9V(TUN:0V)
1.9V(TUN:0V)
1.9V(TUN:0V)
0.5V(TUN:0V)
0V
1.9V(TUN:0V)
1.9V(TUN:0V)
3.7V(TUN:0V)
0V
4.4V(TUN:0V)
GND
GND
2.0V(TUN:0V)
(TUN:0V)
4.4V
(TU
N:0
V)
GND
2.2V
(TU
N:0
V) 2.1V
(TU
N:0
V)
4.2V
(TU
N:0
V)
2.1V
(TU
N:0
V)
2.2V
(TU
N:0
V)
GN
D
GN
D
GN
D 5V 5V
5V
2.5V
2.4V
GN
D
5.0V
2.3V
2.3V
2.3V
2.3V
5.0V
5.0V
4.4V
GND
0V(TUN:7.5V)
4.4VSWITCHING
RECORD SIGNAL
PLAYBACK SIGNAL
CD SIGNAL
FM SIGNAL
AM SIGNAL
13
12
57
16
11
1415
4
17
16
R AMP.
IC202ELECTRONICVOLUMETC9260P
+
-
+
-
SW201FUNCTIONSELECTOR
SW201FUNCTIONSELECTOR
1
2
SW801PLAY/PAUSE/TUNING UP
SW802STOP/
TUNING DOWN
SW803REPEAT/
BAND
SW804TUNER/
MEMORY
SW805CUE/
PRESETUP
SW806REVIEW/PRESETDOWN
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B +B+B
+B
+B
+B
+B
+B
+B
+B +B
+B
+B
+B
+B
5.0V
0.4V)
GN
D(C
D: O
PE
N)
8.2V-8.4V
4.5V-4.2V
8.6V-8.0V
GND
0.6V
0V
0V
0.6V
5.0V-4.6V
8.6V-8.0V
4.5V-4.2V
9.0V
GND
GND
GN
D
2.5V
2.5V
0V2.5V
GN
D0V
0V 0V2.
5V
2.5V
2.5V
2.5V
2.5V
4.6V
0V0V (R
EC
: 4.0
V)
0.4V)
OSC.
0VG
ND
0V(OFF:0.6V)
0V(OFF:0.6V)
0VG
ND
0.2V
0.2V
2.0V
2.0V
0.8V
0.8V
0.V
0VG
ND
GN
D
0V(ON:0.6V)
0V(ON:0.6V)
4.8V(ON:4.4V)
0V(ON:4.4V)
4.4V(ON:3.8V)
SWITCHING MUTE
MUTE
MUTE
9V7.5V
8.4V
7.0V
8.4V
0V
7.5V REGULATOR
7.5V
R
EG
ULA
TO
R
7.5V5.0V
7.0V
4.4V
7.0V
4.9V
Q204,Q205:5V REGULATOR
Q211,Q212 LINE AMP
QT-CD250
– 14 –Figure 14 WIRING OF P.W.BOARD (1/2)
A
B
C
D
E
F
G
H
1 2 3 4 5 6
• The numbers 1 to 17 are waveform numbers shown in page 16.
2345
1
789
6
1213
1415
1110
16
23
1
CNS801
SW809X-BASS
R808
C810
R809UN801
R857
SW808VOLUMEDOWN
R855
SW805CUE/PRESET UP
SW801PLAY/PAUSE/
TUNIG UP
FW802
R847
R841
LCD801
R849
R848
SW802 STOP/TUNING
SW803 REPEAT/BAND
R246 C24
7
R24
5
R248
Q212C231
R244 R247C244
Q21
1
R240 R243C242
CNP801
C243R236 R239
R238 C241R234
R235
SW804 TUNER/MEMORY
C224
R237R233C223
Q210
Q209R241
C245R74 R
242
R73 R45
8
SW201
R856
SW806DOWN/REVIEW/PRESE
FW801
SW807VOLUMEUP
C51
X51
R62 R61
IC51
R60
R59
R58 R55 R13
R76
R51
Q2
C75
R87
3
R87
7
CO
R80
1
R87
8
R87
5
R87
9
R87
2 R87
1
R843
R846
R876R882
C865R883R884R885
R888R886
R889 R887R890R891 R893R892
R894R895
R898R899R900R901
X802X801
R839
C845C846
R84
2R
844
Q80
5
R825
C832
L801
C853
R83
5
D80
6R
862
C84
7
C84
8Q804
C844
R83
6R86
0
R854C849 C850R837
R838C851
C852
R45
5
R45
6
D80
5
D80
3
R21
4
R45
7
R250
Q203
C20
7 R253
ZD
203
C220
R21
6R
215
C214Q
202
R212R225
R224 C23
5C246R223 Q
201 R
231
R207
IC20
2 C215
R21
1C
219
R219C217R217R209
C21
3
R25
1
C208 R210C229 R221
C205
R21
3C232 C230R252
R249
CNP201
R12
5
C12
0 C123
R124
R11
9
C12
1
D102
R12
3 R11
7
C11
7
IC101
C10
5
R10
5D
101 R
115
C11
5R
113
C11
3R
109
C10
9
C11
1
R121
R104 R10
1
R10
7C
107
R103
CNP101C351
L301
R35
1
C354
C10
8 R10
2R
108
R352
R11
6C
106
R10
6
R35
4
Q35
1
R353C353C
352
C11
2C
110
R11
0C
114
R11
4
C11
6
R126
R11
8C
118
R12
2
C11
9
R12
0C
122
C23
3
C23
4
CN
P60
2
C23
9
R230
C226C240
C201D201
C23
7
C238
IC20
1
C22
5 R23
2
C23
6
C22
1
C22
2
C21
0
C302
C227 C21
2
D801
C837
R81
2
C854C825
C82
1C822
C813R803
C836
R834
C814R833 C818
R83
2
R831
R807R830
C819R829
C829
C863
C816
C83
3
R82
8
C841
R80
5C
804
R80
6
C82
0
C801C828 R804
C815
C802C830R801
Q801
C817
R826
R824
C82
7R
827
C82
6
R82
0
C824
C83
8 C83
9
C83
5C
834
C842C843
L803
R85
2
R86
8R
867
Q806
R87
0
R845 R86
6
D802
R86
9
IC80
3
Q80
3
R851
D80
4
BI803
R85
0
L807
TC
1
R1
C27
C10
R8
R7
C9
C29
VD
3
C12
C11
R2
L1R6
R54
C8C61
C6C54
VD
2 L2
R5
C7R4
L51
C56
C53
R12
IC1
R53
C60 C23
C21
C59
R52C55
C20
C52 C22
C26
C24R15
R18
Q1
R16
R17
C19R71 C73 C74
R72C72
C71
C16C25
CF4
CF1
C14
CF
3 R10
T3
C13D1
F1
C3
VD1
C2
R3
C1
C85
6R
865
Q802
C80
6
CO
R1
C807
R85
3B
I801
R80
2
BI8
02R
811
R20
4D
204
D20
5
C21
1R
202
Q204
R20
1D
203
D20
2C
204 R20
3R20
5Q206
ZD
202
ZD
201
C20
9
Q207
C20
6R
206
Q205
C20
3
C20
2
C249
R22
8
R227
R254
C216
R222R218
C218R220
R861
C15
R840
23
45
1
6789
12
13 14
1110
1 2 3
2
3
4
51 7
8
9
6 12
11
10
1 2 3 4
A B C D
E F G H
ECB
ECB
ECB
BCE
ECB
BCE
BCE
BCE
B C E
B C E
B C EB C E
E C B
E C B
E C B
4321
B C
A D
321
8081
1 510
1520
25 3540
4555
6065
707585
9095
5150
3031
8
1
15
10
5 25
301
20
16
ECB
123
321
BCE
11 1210
5
20
221
15
1 2 3
23
1
3 2 1
L4
1
10
5
12
24
20
15
13
1 6
BK
BK
321
HPJ201HEADPHONES
PLAY RECSW102
RECORD/PLAYBACK
1 2 3
1
5
10
15
20
11
11 12
11
1112
BK
BK100
C870
C864
IC802
R896R897
C862 R863R864
R82
1
C840
C872
IC80
1
C823
C80
5
C5
C32C68
C18R14
C58R20 C34
R77
C33
13 12
15 10
520
24 1
5
1
1234
C57
SPEAKERSSP201 SP202 R-CHL-CH
CNS201
WH
BK
RD
MAIN PWB-A1
CD CONTROLPWB-A2
SWITCHPWB-A4
L3 AM BAR ANTENNA
WH
GY
GY
GY
GY
GY
12345
87654321
BKWHWHWHWH
WHWHWHWHWHWHWHBK
CNS802
CNS801
SW810CD LID
OPEN/CLOSE
SW
201
FU
NC
TIO
NS
ELE
CT
OR
TU
NE
RT
AP
EO
FF
PO
WE
R O
N
CD
5
1
7
8
6
1415
11
1716
10
23
9
12
13
4
BK
BK(245)
TO SP202(R-CH)
QT-CD250
– 15 –Figure 15 WIRING OF P.W.BOARD (2/2)
7 8 9 10 11 12
F3895AF
C65
1
C654
D651
D654
C653
D652
D653
C652
(241) (241)
(241)
CNS602
FM ROD ANTENNA(237)
BK
BK
RD
WH
RECORD/PLAYBACKHEAD(240-4)
ERASE HEAD(240-5)
TAPE
BK
CNS101
BKWH
RDBK
1234
BR
COLOR TABLE
RD(R)
OR
YL
GR
BL
VL
GY
WH(W)
BK
PK
BROWN
RED
ORANGE
YELLOW
GREEN
BLUE
VIOLET
GRAY
WHITE
BLACK
PINK
T651POWER
TRANSFORMER
(229)
(230)
BATTERYSDC9 V [ "D" size(UM/SUM-1,R20 or HP2) battery x 6 ]
YL
TAPE MOTOR(240-6)
M601TAPE MAIN
(240-7)
SW601
1
+
+
-
SW702PICKUP IN
M702SPENDLE MOTOR
M701SLED MOTOR
CNP803123456
5 4 3 2 1
78 6 5 4 3 2 1
PICK UP UNIT
CD MOTOR PWB-B
POWER PWB-A3
TERMINAL B PWB-A6
TERMINAL A PWB-A5
RDBK
BR
BK
RDRD
YL
YL
RD
OROR
OR
OR
OR
OR
SO651AC INLETSOCKETAC 120V,
60Hz
2
3
-
(233)
123456
WHGYGYGYGYGY
CNS803
BATTERYSDC4.5V ["AA" SIZE(UM/SUM-3,
R6 or HP7)battery x 3]
QT-CD250
– 16 –
WAVEFORMS OF CD CIRCUIT
NO DISC FOCUS SEARCH STOP PLAY
FOO 1 TMAX 1
FO+ 2 SBOK 2
FO- 3 DMO 3
FOCUS SEARCH TOC IL STOP PLAY
SEL 1 TEI 1
FEI 2 TRO 2
TEI 3 FMO 3
STOP PLAY CUE
FEI 1 TEI 1
SBAD 2 TRO 2
RFO 3 FMO 3
STOP PLAY REVIEW
FEI 1 TEI 1
RFGO 2 TRO 2
RFRP 3 FMO 3
STOP PLAY TCD-782 TNO-02 PLAYBACK
TEI 1 LO 1
TRO 2
RO 2
SBAD 3
1
2
3
4
6
7
11
15
16
17
5
6
5
7
8
5
9
10
6
11
12
13
14
6
11
15
6
11
15
IC802 66pin
IC803 20pin IC802 45pin
IC803 21pin IC802 72pin
IC802 74pin
IC802 62pin IC802 67pin
IC802 64pin IC802 71pin
IC802 62pin
IC802 63pin IC802 67pin
IC801 22pin IC802 71pin
IC802 62pin
IC801 19pin IC802 67pin
IC801 17pin IC802 71pin
IC802 64pin
IC802 67pin
IC802 63pin
IC802 86pin
IC802 64pin
IC802 64pin
IC802 64pin
IC802 50pin
IC802 82pin
QT-CD250
– 17 –
TROUBLESHOOTING (CD SECTION)
HOW TO USE
1. Using the brush in the cleaner cap, apply 1 or 2 drops of the cleaning fluid to the brush on the CD cleaner disc which hasthe mark next to it.
2. Place the CD cleaner disc onto the CD disc tray with the brush side down, then press the play button.3. You will hear music for about 20 seconds and the CD player will automatically stop. If it continues to turn, press the stop button.
CAUTION
The CD lens cleaner should be effective for 30 - 50 operations, however if the brushes become worn out earlier then pleasereplace the cleaner disc.If the CD cleaner brushes become very wet then wipe off any excess fluid with a soft cloth.Do not drink the cleaner fluid or allow it to come in contact with the eyes. In the event of this happening then drink and / orrinse with clean water and seek medical advice.The CD cleaner disc must not be used on car CD player or on computer CD ROM drives.All rights reserved. Unauthorized duplicating, broadcasting and renting product is prohibited by law.
Cleaning DiscPARTS CODE: UDSKA0004AFZZ
Cleaner Liquid
Figure 17
When the CD does not functionWhen the CD section does not operate when the objective lens of the optical pickup is dirty, this section may not operate. Cleanthe objective lens, and check the playback operation. When this section does not operate even after the above step is taken,checkthe following items.Remove the cabinet and follow the troubleshooting instructions."Track skipping and/or no TOC (Table Of Contents) may be caused by build up of dust other foreign matter on the laser pickuplens. Before attempting any adjustment make certain that the lens is clean. If not, clean it as mentioned below."
Turn the power off.Gently clean the lens with a lens cleaning tissue and a small amount of isopropyl alcohol.Do not touch the lens with the bare hand.
Dust gradually accumulates on the objective lens during use, and it may degrade performance.To avoid this problem, use a cleaning disc designed for CD optical pickup lenses.
Check the pickup-in switch (SW702) position.
Check the Focus system.
Yes
• The CD function will not work.
The CD operating keys don't work.
Check the power supply, 16.93 MHz clock, and reset terminal.
Yes
Yes
QT-CD250
– 18 –
• Laser failure.
YesNo
Check the laser come on when pattern cut between pin 8 (SEL) ofIC801 and pin 74 (SEL) of IC802.
YesNo
Check the peripheral parts of IC801 and Q801. If it is normal, theoptical pickup is faulty.
Check BI801/CNS801. If it is normal, the optical pickup isfaulty.
Is approx. 1.8V applied to the collector of Q801.
• Focus failure.
Does the optical pickup move up and down when the disc isremoved?
Is the following waveform ouput at the pin 62 (FEI) of IC802when the disc is set?
Is the waveform shown above input at the pin 63 (SBAD) ofIC802?
Yes
Yes
No
No
The optical pickup is faulty.
Check as stated in item "FOCUS SERVO SAWTOOTH WAVEFAILURE".
Yes
Check the periphery of IC801 and BI801/CNS801. Is it normal?
NoCheck the pattern between pin 13 of IC801 and pin 63 of IC802.Check the periphery of IC801 and BI801/CNS801.
IC801 is faulty.
Yes
Is +7.5V applied to the Collector of Q206 ?
Is +5V applied to the collector of Q204 and Q806 ?
YesNo
No
Check the PWB pattern of Q206.
Check the PWB Patten of IC204 and Q806.
Is +5V applied to the pin 75 (VDD) and pin 96 (MVDD) ofIC802 ?
Is +5V applied to the pin 1 (VCC) of IC801 ?
Yes
No
No
Check the PWB pattern between collector of Q806 and pin 75 ofIC802, and emiter of Q806 and Q804 and pin 96 of IC802.
Check the PWB pattern between collector of Q204 and pin 1 ofIC801.
pin 62
(FEI)
pin 86
(FOO)
pin 63
(SBAD)
Yes
Yes
Is +0V applied to the pin 74 (SEL) of IC802 ?
QT-CD250
– 19 –
• Focus servo sawtooth wave failure.
Is +7.5V applied to the pins 1 and 30 (VCC) of IC803 ?
Is sawtooh wave output to the pin 66 (FOO) of IC802 ? IC802 is faulty.No
Yes
Yes
Is sawtooth wave obtained between pins 20 and 21 of IC803 ?No
Check the PWB pattern of IC803.
Check the PWB pattern of IC803.No
Is sawtooth wave obtained between pins 3 and 4 of BI801/CNS801 ? (as shown above)
Yes
Check the PWB pattern between BI801/CNS801 and IC803.No
BI801/CNS801 connection failure or optical pickup failure.
Yes
• Spindle motor clv servo failure.
Is above wave obtained between pins 5 and 6 of IC803 ?
Is following wave output to the pin 72 (DMO) of IC802 whenthe Function is changed to "PLAY" from "STOP" ? No
Yes
Check the procedure in "HF ERROR".If OK. IC802 is faulty.
Check the PWB pattern between pin 72 (DMO) of IC802 and pins5 and 6 of IC803. If OK. IC803 is faulty.No
Is above wave obtained between pins 5 and 6 of BI803/CNS803 ?
Yes
Check the PWB pattern between BI803/CNS803 and IC803.No
BI803/CNS803 connection failure or optical pickup failure.
Yes
DMO
1.5~2.5sec
1.5~2.5sec
QT-CD250
– 20 –
• Sled motor operation failure.
Yes
Yes
Is following sled feed signal output the pin 71 (FMO) of IC802when FF/REW key is pressed after the CD TEST MODE isseted?
Is sled feed signal output the pins 10 and 11 of IC803?
Is sled feed voltage applied between both terminals of sledmotor?
No
Check the peripheral parts of IC803. If OK, IC803 is faulty.No
IC802 is faulty.
Check the BI803/CNS803.No
Yes
Check the CD mechanism (periphery of sled motor).If the sled motor does not run when DC2.0V is applied toboth terminals of sled motor, the sled motor is faulty.
• Sled servo failure.
Yes
Is following sled signal output the pin 71 (FMO) of IC802during playback?
Normal.
NoIC802 is faulty.
• Track search failure
Does the sled motor run in FF/REW state when the CDTEST MODE is set?
Is the following wave output to the pin 67 (TRO) of IC802during track search in normal playback?
Is the following wave output to the pins 12 (TEO) of IC801during track search in normal playback?
Yes
Yes
NoCheck as stated in item "SLED MOTOR OPERATION FAILURE".
NoIC802 failure.
NoCheck the PWB pattern between pin 67 (TRO) of IC802 and pin28 of IC803.Check the PWB pattern between pins 25 and 26 of IC803 andOptical pickup.If OK. Optical pickup failure.
Yes
Is the above wave output to the pins 64 (TEI) and 65 (TEZI)of IC802 during track serch in normal playback? No
Check the PWB pattern between pin 12 (TEO) of IC801 and pins 64(TEI) and 65 (TEZI) of IC802. If OK. IC801 failure.
Normal.
Yes
Yes
Is following sled feed signal input the pins 12 and 13 of IC803when FF/REW key is pressed after the CD TEST MODE isseted?
Check the PWB pattern between pin 71 of IC802 and pins 12 and13 of IC803.No
Is the following wave output to the pin 60 (RFZI) and 61(RFRP) of IC802 during track search in normal playback? No
Check the PWB pattern between pin 22 (RFO) and 18 (RFIS), 17(RFRP) of IC801 and pins 60 and 61 of IC802. If OK. IC801 failure.
Yes
TRO
TEO
TEI
TEZI
FF REW
FMO
FMO
RFRP
RFZI
FF REW
SL ±
QT-CD250
– 21 –
IC51 VHiLC72121/-1: Electronic Tuning (LC72121) (1/2)
1 Xtal XIN Output Crystal oscillator connection.(4.5 MHz/7.2 MHz)
2 Ground VSSX Output Ground terminal for the crystal oscillation circuit system of LC72121.
3 Chip enable CE Output High level when inputting serial data (DI) to LC72121 or sendingserial data (DO).
4 Input data DI Input Input terminal for serial data that is transferred from the controller toLC72121.
5 Clock CL Output Clock that synchronizes data when inputting serial data (DI) toLC72121 or sending serial data (DO).
6 Output data DO Output Output terminal that sends data from LC72121 to the controller. Theoutput data is defined by serial data DOC0-DOC2.
7* Output port BO1 Output Output dedicated terminal.Output state is defined by the serial data BO1-BO4.Data 0: OpenData 1: LTime base signal (8 Hz) output is possible from BO1 terminal.(When setting serial data TBC = 1.)
8-10 Output port BO2-BO4 Output Output dedicated terminal.Output state is defined by the serial data BO1-BO4.Data 0: OpenData 1: LTime base signal (8 Hz) output is possible from BO1 terminal.(When setting serial data TBC = 1.)
11 Input/output port IO1 Input/Output Terminal for both input and output.Input and output are defined by serial data IDC1 and IOC2.Data 0: Input portData 1: Output portWhen specified as the input port.The input terminal state is transferred from the DO terminal to thecontroller.Input state "L": Data -> 0Input state "H": Data -> 1When specified as the output port.Output state is defined by the serial data IO1 and IO2.Data 0: OpenData 1: LWhen turning on the power or resetting, the terminal becomes theinput port.
12 IF counter IF IN Input Input frequency is 0.4-12 MHz.Signal is transferred to the IF counter directly.The result is sent from M5B of the IF counter through DO.4 measuring times: 4, 8, 32, and 64 ms
13 Input/output port IO2 Input/Output Terminal for both input and output.Input and output are defined by serial data IDC1 and IOC2.Data 0: Input portData 1: Output portWhen specified as the input port.The input terminal state is transferred from the DO terminal to thecontroller.Input state "L": Data -> 0Input state "H": Data -> 1When specified as the output port.Output state is defined by the serial data IO1 and IO2.Data 0: OpenData 1: LWhen turning on the power or resetting, the terminal becomes theinput port.
14 Ground VSSD — Ground terminal for the digital system other than VSSA and VSSX ofLC72121.
Port Name TerminalName
Pin No. Input/Output Function
FUNCTION TABLE OF IC
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
QT-CD250
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IC51 VHiLC72121/-1: Electronic Tuning (LC72121) (2/2)
15 Local oscillation, Signal input AMIN Input Serial data input: AMIN is selected when DVS = 0 is set.When serial data input SNS = 1 is set:Input frequency is 2-40 MHz.Signal is sent to the swallow counter directly.Dividing number to be set is 272- 65535. The actual dividing numberis the same as the setting value.When serial data input SNS = 0 is set.Input frequency is 0.5-10 MHz.Signal is transferred to the 12-bit programmable divider directly.Dividing number to be set is 4-4095. The actual dividing number isthe same as the setting value.
16 Local oscillation, Signal input FMIN Input Serial data input: FMIN is selected when DVS = 1 is set.Input frequency is 10-160 MHz.Signal is transferred to the swallow counter through the built-inprescaler (1/2).Dividing number to be set is 272-65535. The actual dividing numberis twice as the setting value because there is a built-in prescaler(1/2).
17 Power supply VDD — Power supply terminal for LC72121 (VDD = 2.7-3.5 V).Power on reset circuit works when POWER ON.
18 Charge pump output PD Output Charge pump output terminal for PLL.When the local oscillation signal frequency divided by N is higherthen the refernce frequency, "H" level is sent from the PD terminal.When it is lower, "L" level is sent. When the frequencies are thesame, they become high impedance.
19 L.P.F. Amplifier transistor AIN Input L.P.F. Amplifier transistor
20 L.P.F. Amplifier transistor AOUT Output L.P.F. Amplifier transistor
21 Ground VSSA — Ground terminal for the low-pass filter MOS transistor of LC72121.
22 Xtal XOUT Output Crystal oscillator connection.(4.5 MHz/7.2 MHz)
Port Name TerminalName
Pin No. Input/Output Function
Figure 22 BLOCK DIAGRAM OF IC
2
3
4
5
1
7 8 9
6
12
13
14
15
11
17
18
19
10
16
22
21
20
REFERENCEDIVIDER
PHASE DETECTORCHARCE PUMP
UNLOCKDETECTOR
UNIVERSALCOUNTER
DATA SHIFT REGISTERLATCH
12bits PROGRAMMABLEDIVIDER
SWALLOW COUNTER1/16, 1/17 4bits
1/2
CCBI/F
POWERON
RESET
PD
AIN
AOUT
VSSa
IFIN
BO1 BO2 BO3 BO4 IO1 IO2
AMIN
FMIN
CE
DI
CL
DO
VDD
VSSd
XOUT
XIN
VSSx
QT-CD250
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IC1 VHiTA2104BN-1: FM /AM IF MPX. (TA2104BN)
Figure 23 BLOCK DIAGRAM OF IC
IC202 VHiTC9260P/-1: Electronic Volume (TC9260P)
2 3 4 51 7 8 96 12
131415
11
171819
10
16222324 21 20
FMRE
AMMIX
FMMIX
BUFF
BUFF
FMOSC
AMOSC
LEVELDET
ST FW
IFREQ
1/8
ANDET
AFBUFF
AF
FMDET
AGCFMIFAMIF MUTE
ST/MOFM/AM
VCC
DIYIDEDECODE
LPF2LPF1DET OUTIFREQST INDOSC OUTAM OSCFM OSCAM RF IN FM RFFM RF OUT
RF GND MIX OUTFM RF ON AMLOW OUT
IFBUFF
Vcc AM IF IN FM IF IN GND AGC QUAD R-OUT L-OUT
MPX IN
2
3
4
5
1
7
8 9
6
12
13
14
15
11
10
16
DATA DECODER, STB GENERATOR
SHIFT REGRATER (13bit)
L-chLATCH
R-chLATCH
Vss VDD
OUT
IN
LD1
LD2
A-GND
CS
CK
L-chVOLUME
OUT
IN
LD1
LD2
A-GND
STB
DATA
R-chVOLUME
QT-CD250
– 24 –
IC802 VHiTC9457F2-1: Servo/Signal Control (TC9457F2) (1/4)
1* (OT5)S1 SEG1 Output Segment signal output to the LCD panel.2 (OT6)S2 SEG2 Output Up to 72 segments in a matrix with COM1 to COM4 can be displayed.3 (OT7)S3 SEG3 Output All of the S1 to S18 pins can be switched for output ports by a program.4 (OT8)S4 SEG4 Output Also, the S15 to S18 pins each can be switched for I/O ports individually.5 (OT9)S5 SEG5 Output When set for I/O ports, these pins become Nch open-drain output.6* (OT10)S6 SEG6 Output Furthermore, the S11 to S14 and the P8-0 to P8-3 pins can be switched for7* (OT11)S7 SEG7 Output use as CD signal (CLCK to IPF) input/output pins by a program.8* (OT12)S8 SEG8 Output • CLCK: Subcodes P thru W data readout clock input/output.9* (OT13)S9 SEG9 Output Selected between input and output by a command.10* (OT14)S10 SEG10 Output • DATA: Subcodes P thru W data output.11* (CLCK/OT15) SEG11 Output • SFSY: Playback system frame sync signal output.
S11 • LRCK: Channel clock (44.1kHz) output.12* (DATA/OT16) SEG12 Output It outputs a low for L channel and a high for R channel.
S12 Polarity can be inverted by a command.13* (SFSY/OT17) SEG13 Output • BCK : Bit clock (1.4122MHz) output.
S13 • AOUT: Audio data output.14* (LRCK/OT18) SEG14 Output • MBOV: Buffer memory-over signal output.
S14 It outputs a high when buffer overflows.15 (BCK/S15) SEG15 Output • IPF : Correction flag output. When AOUT is C2 correction output, it
P8-0 outputs a high indicating that correction is impossible.16 (AOUT/S16) SEG16 Output
P8-117 (MBOV/S17) SEG17 Output
P8-218 (IPF/S18) NC Output
P8-3
19 MVDD MVDD1 Input/Output Power supply pins.20 MVSS MVSS1 Input/Output Normally, apply a voltage of 4.5 to 5.5V to VDD.
In a backup state (when the CKSTP instruction executed), the device'scurrent consumption is reduced to 1µA or less, allowing for the supplyvoltage to be lowered to 2.0V.The device is reset and the program starts from address 0 when a voltageof 2.7V or more is applied to this pin when it is at 0V (power-on reset).
21* (K0)P1-0 CD-FUNC Input 4-bit CMOS I/O ports.22* (K1)P1-1 TUNER-FUNC Input These ports can be set for input or output bit for bit by a program.23 (K2)P1-2 DOOR IN Input These pins can be pulled up to VDD or down to GND by program.24 (K3)P1-3 PU IN Input Therefore, they can be used as key input pins. Also, when they are set for
I/O port, a change of state in this input can be used to clear the clock stopor wait mode.
25 (DCREF)P3-0 CD POWER Output 5-bit CMOS I/O ports.26 (ADin1)P3-1 KEY 1 Input These ports can be set for input or output bit for bit by a program.27 (ADin2)P3-2 KEY 2 Input The P3-0 to P4-0 pins serve dual purposes as analog inputs for the internal28 (ADin3)P3-3 ADIN 3 Input 6-bit 4-channel A/D converters.29 (BUZR/ NC Input The internal A/D converters can complete conversion in 6 instruction cycles
ADin4)P4-0 using a successive approximation method. The required pins can be set forA/D analog input bit for bit by a program. P3-0 can be set for referencevoltage input, and the internal power supply (MVDD) can be used for thisreference voltage.The P4-0 pin serves dual purposes as a buzzer output pin.The buzzer output can be selected from 8 frequencies, 0.625 to 3kHz.Each selected frequency can be output in one of four modes: continuous,single, 10Hz intermittent, and 10Hz intermittent at 1Hz interval.Whether or not to use and how to control the A/D converter and buzzer allcan be set by a prograam.
Port Name Terminal NamePin No. Input/Output
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Function
QT-CD250
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IC802 VHiTC9457F2-1: Servo/Signal Control (TC9457F2) (2/4)
30 (S12)P4-1 DI Input 3-bit CMOS I/O ports.31* (SO/S11/ DO Output DI: Tuner Data Input pin.
SDA)P4-2 DO: Tuner Data Output pin.32* (SCK/SCL) CL Output CL: Tuner/Volume Clock Output pin.
P4-3 These ports can be set for input or output bit for bit by a program.These pins serve dual purposes as input or output pins for the serialinterface circuit (SIO).The SIO is a 2-wire/3-wire compatible serial interface. 4 or 8 bits of serialdata, beginning with the MSB or LSB, are serially output from the SO/SDA,pin at each clock edge on the SCK/SCL pin, and the data on S11 or S12pin is serially input to the device.The serial clock (SCK/SCL) allows selection between the internal (450/225/150/75 kHz) and external sources and a selection of the active edge, rise orfall. Moreover, since the clock and data can be output via Nch open-drainoutputs, variouts, device controls and communication between controllerscan be greatly facilitated.When an SIO interrupt is enabled, an interrupt is generated at completionof SIO execution and the program jumps to address 4.All inputs to SIO contain a Schmitt trigger circuit.
33 TEST0 TEST0 Input Test mode control input pins.34 TEST1 TEST1 Input The test mode is selected when these pins are set high and normal35 TEST2 TEST2 Input operation is selected when they are low.36 TEST3 TEST3 Input37 TEST4 TEST4 Input38 TEST5 TEST5 Input
39* (OT19)/HSO CE_(PLL) Output CE_(PLL): Tuner Chip Enable Input pin.40* (OT20)SPCK STB_(VOL) Output STB_(VOL): Volume Storobe Input pin.41* (OT21)SPDA P_MUTE Output P_MUTE: MUTE ON/OFF Output pin.42* (OT22)COFS X-BASS Output X-BASS: X-BASS ON/OFF Output pin.
43* DOUT (N/C) Input/Output Digital output pin.
44* SBSY (N/C) Input/Output Subcode block sync output pin. It outputs a high at the S1 position whensubcode sync is detected.
45* SBOK (N/C) Input/Output Subcode Q data CRCC determination result output pin. It outputs a highwhen CRCC check is found OK.
46 VDD VDD1 Input/Output CD unit's digital block power supply pins.47 VSS VSS1 Input/Output Normally, apply 5V to VDD.
When not using a CD (CD off), this power supply can be turned off, withonly the controller power supply kept active, so that the contrller alone isoperating. In this case, the CD off bit must be set to 1. When this bit is setto 1, pins 11 through 18 and pins 39 through 42 all are changed for outputports if they have been set for CD control signal input/output pins.
48 P2VREF P2VREF Input/Output PLL block-2 VREF pin.
49 PDO PDO Input/Output This pin outputs a phase error between EFM and PLCK signals.
50 TMAX TMAX Input/Output TMAX detection result output pin.Selected by command bit TMPS.Longer than preset period: Outputs P2VREF.Shorter than preset period: Low level (Vss).Within preset period: High impedance.
51 LPFN LPFN Input/Output Inverted input of low-pass filter amp.
52 LPFO LPFO Input/Output Output of low-pass filter amp.
53 PVREF PVREF Input/Output PLL block VREF pin.
54 VCOF VCOF Input/Output VCO filter pin.
55 AVSS AVSS Input/Output Analog block ground pin.
56 SLCO SLCO Input/Output DAC output pin for data slice level generation.
57 RFI RFI Input/Output RF signal input pin.
58 AVDD AVDD Input/Output Analog block power supply pin.
59 RFCT RFCT Input/Output RFRP signal center level input pin.
60 RFZI RFZI Input/Output RFRP zero-cross input pin.
61 RFRP RFRP Input/Output RF ripple signal input pin.
62 FEI FEI Input/Output Focus error signal input pin.
Port Name Terminal NamePin No. Input/Output
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Function
QT-CD250
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IC802 VHiTC9457F2-1: Servo/Signal Control (TC9457F2) (3/4)
63 SBAD SBAD Input/Output Subbeam add signal input pin.
64 TEI TEI Input/Output Tracking error input pin.This input is read when tracking servo is on.
65 TEZI TEZI Input/Output Tracking error zero-cross input pin.
66 FOO FOO Input/Output Focus equalizer output pin.
67 TRO TRO Input/Output Tracking equalizer output pin.
68 VREF VREF Input/Output Analog reference power supply pin.
69 RFGC RFGC Input/Output RF amplitude adjusting control signal output pin. It outputs 3-level PWMsignals. (PWM carrier = 88.2kHz)
70 TEBC TEBC Input/Output Tracking balance control signal output pin. It outputs 3-level PWM signals.(PWM carrier = 88.2kHz)
71 FMO FMO Input/Output Focus equalizer output pin. It outputs 3-level PWM signals.(PWM carrier = 88.2kHz)
72 DMO DMO Input/Output Disc equalizer output pin. It outputs 3-level PWM signals.(PWM carrier = DSP block 88.2kHz, synchronized to PXO)
73 2VREF 2VREF Input/Output Analog reference power supply pin. (2 x VREF)
74 SEL SEL Input/Output APC circuit on/off signal output pin.When laser is on, this pin goes to a high-impedance state when UHS = lowand outputs a high when UHS = high
75 VDD VDD2 Input/Output CD unit's digital block power supply pins.76 VDD VSS2 Input/Output Normally, apply 5V to VDD.
When not using a CD (CD off), this power supply can be turned off, withonly the controller power supply kept active, so that the contrller alone isoperating. In this case, the CD off bit must be set to 1. When this bit is setto 1, pins 11 through 18 and pins 39 through 42 all are changed for outputports if they have been set for CD control signal input/output pins.
77 XVSS XVSS Input/Output CD's crystal oscillator power supply pins.Normally, connect these pins to the power supply lines that are used incommon for the VDD and VSS pins.
78 XI XI Input/Output CD's crystal oscillator input/output pins.79 XO XO Input/Output Normally, connect 16.934MHz here. This clock is used as the system clock
for the CD. After a system reset, it also is used as the system clock on thecontroller side.
80 XVDD XVDD Input/Output CD's crystal oscillator input/output pins.Normally, connect these pins to the power supply lines that are used incommon for the VDD and VSS pins.
81 DVSR DVSR Input/Output R-channel D/A converter unit ground pin.
82 RO RO Input/Output R-channel data forward output pin.
83 DVRR DVRR Input/Output R-channel reference voltage pin.
84 DVDD DVDD Input/Output D/A converter unit power supply pin.
85 DVRL DVRL Input/Output L-channel reference voltage pin.
86 LO LO Input/Output L-channel data forward output pin.
87 DVSL DVSL Input/Output L-channel D/A converter unit ground pin.
88 NC NC Input/Output NC pins. Normally, connect these pins to ground or leave them open.89* NC/VPP NC Input/Output
90 /RST RESET Input Device's system reset signal input pin.The device remains reset while RESET is held low and when RESET isreleased back high, the CD unit becomes operational and the programstarts from address 0. Normally, a system reset is asserted when a voltageof 2.7V or more is applied to VDD when it is at 0V (power-on reset).Therefore, this pin must be pulled high when used for this purpose.
Port Name Terminal NamePin No. Input/Output
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Function
QT-CD250
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IC802 VHiTC9457F2-1: Servo/Signal Control (TC9457F2) (4/4)
91 /HOLD HOLD Input This pin is used to input a signal that requests or clears the hold mode.Normally, use this pin for CD mode select signal input or battery detectionsignal input.There are two hold modes: clock stop mode (crystal oscillator turned off)and a wait mode (CPU stopped). These modes are entered by executingthe CKSTP and WAIT instructions, respectively.The clock stop mode can be requested by a programmed input: low leveldetection on HOLD pin or forced execution, and can be cleared bydetecting a high on the HOLD pin or a change of state in its input signal.When the CKSTP instruction is executed, the clock generator and the CPUstop operating and the device is placed in a memory backup state. Duringthis state, the device's current consumption is reduced to 1µA or less.At the same time, the display output and CMOS output ports areautomatically set low, and the Nch open-drain outputs are turned off.The wait mode is executed regardles of the input state on the HOLD pin,with the device's current consumption reduced.This mode is cleared by a change of state in the HOLD input.
92 INTR REMO-IN Input External interrupt input pin.When the interrupt facility is enabled and a pulse of 1.11 to 2.22µs induration is applied to this pin, an interrupt is generated and the programjumps to address 1. Input logic and the active edge (rise or fall) can beselected for each interrupt input.Also, the internal 8-bit time clock can be chosen for this interrupt input, inwhich case it is possible to count pulses or generate an interrupt at a givenpulse count (address 3).
93* MXO MXO Input/Output Crystal oscillator pins for the controller.94* MXI MXI Input/Output The oscillator clock is used as the timebase for the clock facility or as the
controller's system clock. Connect a 4.5MHz or 75kHz crystal resonator tothe MXO and MXI pins. Since these pins do not contain internal feedbackresistors, etc, an amp resistor or output resistor must be added external tothe chip.When using the clock generated by the CD unit's crystal oscillator forclocking the entire device operation, fix the MXI pin to the GND level.Oscillation is stopped by executing a CKSTP instruction.Select the crystal oscillator and control its operation by a program.
95 MVSS MVSS Input/Output Power supply pins.96 MVDD MVDD Input/Output Normally, apply a voltage of 4.5 to 5.5V to VDD.
In a backup state (when the CKSTP instruction executed), the device'scurrent consumption is reduced to 1µA or less, allowing for the supplyvoltage to be lowered to 2.0V.The device is reset and the program starts from address 0 when a voltageof 2.7V or more is applied to this pin when it is at 0V (power-on reset).
97 OT1 COM1 Output Common signal outputs to the LCD panel.98 OT2 COM2 Output Up to 72 segments in a matrix with S1 to S18 can be displayed.99 OT3 COM3 Output Three voltage levels MVDD, VEE (1/2 MVDD), and GND are output for100 OT4 COM4 Output 83Hz period at 2ms intervals.
After a system reset and after deassertion of a clock stop instruction, theVEE voltage is output and the DISP OFF bit is set to 0 before commonsignals are output.
Port Name Terminal NamePin No. Input/Output
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Function
QT-CD250
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— M E M O —
QT-CD250
PARTS GUIDE
NOTE:Parts marked with “ ” are important for maintaining the safety of the set.Be sure to replace parts with specified ones for maintaining the safety and performance of the set.
MODEL QT-CD250
“HOW TO ORDER REPLACEMENT PARTS”To have your order filled promptly and correctly, please furnish thefollowing information.
1. MODEL NUMBER 2. REF. No.3. PART NO. 4. DESCRIPTION
MARK: SPARE PARTS-DELIVERY SECTION
For U.S.A. onlyContact your nearest SHARP Parts Distributor to order.
For location of SHARP Parts Distributor,Please call Toll-Free;1-800-BE-SHARP
Explanation of capacitors/resistors parts codesCapacitorsVCC ....................... Ceramic typeVCK ........................ Ceramic typeVCT ........................ Semiconductor typeVC • • MF ............... Cylindrical type (without lead wire)VC • • MN ............... Cylindrical type (without lead wire)VC • • TV ................ Square type (without lead wire)VC • • TQ ............... Square type (without lead wire)VC • • CY ............... Square type (without lead wire)VC • • CZ ............... Square type (without lead wire)VC • • • • • • • • • J .. The 13th character represents capacity difference.
("J" ±5%, "K" ±10%, "M" ±20%, "N" ±30%, "C" ±0.25 pF, "D" ±0.5 pF, "Z" +80-20%.)
If there are no indications for the electrolytic capacitors, error is ±20%.
ResistorsVRD ....................... Carbon-film typeVRS ........................ Carbon-film typeVRN ....................... Metal-film typeVR • • MF ............... Cylindrical type (without lead wire)VR • • MN ............... Cylindrical type (without lead wire)VR • • TV ................ Square type (without lead wire)VR • • TQ ............... Square type (without lead wire)VR • • CY ............... Square type (without lead wire)VR • • CZ ............... Square type (without lead wire)VR • • • • • • • • • J .. The 13th character represents error.
("J" ±5%, "F" ±1%, "D" ±0.5%.)
If there are no indications for other parts, the resistors are ±5%carbon-film type.
PRICERANK DESCRIPTIONNO. PARTS CODE NO. PARTS CODE PRICE
RANK DESCRIPTION
QT-CD250
– 1 –
INTEGRATED CIRCUITS
IC1 VHITA2104BN-1 J AQ FM/AM IF MPX.,TA2104BNIC51 VHILC72121/-1 J AN Electronic Tuning,LC72121IC101 VHIBA3311L/-1 J AK REC./P.B.Equalizer Amp.,
BA3311LIC201 VHITA8227P/-1 J AH Power Amp.,TA8227PIC202 VHITC9260P/-1 J AN Electronic Volume,TC9260PIC801 VHITA2109F/-1 J AL Servo Pre Amp.,TA2109FIC802 VHITC9457F2-1 J AZ Servo/Signal Control,TC9457F2IC803 VHILA6541D/-1 J AW Focus/Tracking/Spin/Sled Driver,
LA6541D
TRANSISTORS
Q1 VSKTC3199GR-1 J AB Silicon,NPN,KTC3199 GRQ2 VSKRA102M//-1 J AC Digital,PNP,KRA102 MQ201,202 VSKTC3199GR-1 J AB Silicon,NPN,KTC3199 GRQ203 VSKTA1266GR-1 J AB Silicon,PNP,KTA1266 GRQ204 VSKTA1273Y/-1 J AE Silicon,PNP,KTA1273 YQ205 VSKTC3199GR-1 J AB Silicon,NPN,KTC3199 GRQ206 VSKTA1046Y/-1 J AC Sillicon,PNP,KTA1046 YQ207 VSKTC3199GR-1 J AB Silicon,NPN,KTC3199 GRQ209~212 VSKTC3199GR-1 J AB Silicon,NPN,KTC3199 GRQ351 VSKTC3199GR-1 J AB Silicon,NPN,KTC3199 GRQ801 VSKTA1266GR-1 J AB Silicon,PNP,KTA1266 GRQ802 VSKTA1273Y/-1 J AE Silicon,PNP,KTA1273 YQ803 VSKRC107M//-1 J AC Digital,NPN,KRC107 MQ804 VSKTA1266GR-1 J AB Silicon,PNP,KTA1266 GRQ805 VSKRC107M//-1 J AC Digital,NPN,KRC107 MQ806 VSKTA1273Y/-1 J AE Silicon,PNP,KTA1273 Y
DIODES
D1 VHD1N4148//-1 J AA Silicon,1N4148D101,102 VHD1N4148//-1 J AA Silicon,1N4148D201~205 VHD1N4148//-1 J AA Silicon,1N4148D651~654 VHD1N4004//-1 J AB Silicon,1N4004D801~806 VHD1N4148//-1 J AA Silicon,1N4148VD1,2 VHCKV1370NT-1 J AG Variable Capacitance,KV1370NTVD3 VHCKV1520NT-1 J AK Variable Capacitance,KV1520NTZD201 VHEDZ5R1BSB-1 J AC Zener,5.1V,DZ5.1BSBZD202 VHEDZ7R5BSB-1 J AB Zener,7.5V,DZ7.5BSBZD203 VHEDZ2R4BSB-1 J AB Zener,2.4V,DZ2.4BSB
FILTERS
CF1 RFILF0006SJZZ J AE FM IFCF3 RFILA0003SJZZ J AF AM IFCF4 RFILF0005SJZZ J AF FM DetectionF1 RFILR0001SJZZ J AD FM Band Pass Filter
TRANSFORMERS
T3 RCILI0008SJZZ J AC AM IF! T651 RTRNP0036SJZZ J AQ Power
COILS
COR1 RCORF0005SJZZ J AB CoreCOR801 RCORF0005SJZZ J AB CoreL1 RCILR0004SJZZ J AE FM RFL2 RCILB0015SJZZ J AC FM OscillationL3 RCILA0011SJZZ J AC AM Bar AntennaL4 RCILB0014SJZZ J AC AM OscillationL51 VP-DH101K0000 J AB 100 µH,ChokeL301 RCILB0003SJZZ J AD Bias OscillationL801 VP-DH221K0000 J AB 220 µH,ChokeL803 VP-DH221K0000 J AB 220 µH,ChokeL807 VP-DHR82K0000 J AE 0.82 µH,Choke
VARIABLE CAPACITOR
TC1 RTO-H1003SJZZ J AG Trimmer
VIBRATORS
X51 RCRSP0003SJZZ J AL Crystal,4.5 MHz
X801 RCRM-0002SJZZ J AE Ceramic,16.93 MHzX802 RCRM-0003SJZZ J AK Ceramic,4.19 MHz
CAPACITORS
C1 VCCCPA1HH150J J AA 15 pF (CH),50VC2 VCKYPA1HB102K J AA 0.001 µF,50VC3 VCKZPA1HF103Z J AA 0.01 µF,50VC5 VCKYTV1EF104Z J AA 0.1 µF,25VC6 VCCCPA1HH220J J AA 22 pF (CH),50VC7,8 VCKYPA1HB102K J AA 0.001 µF,50VC9 VCKZPA1HF223Z J AA 0.022 µF,50VC10 VCCUPA1HJ8R0D J AA 8 pF,50VC11 VCCSPA1HL361J J AA 360 pF,50VC12 RC-GZA105AF1H J AB 1 µF,50V,ElectrolyticC13 RC-GZA474AF1H J AA 0.47 µF,50V,ElectrolyticC14 VCKZPA1HF473Z J AA 0.047 µF,50VC15 RC-GZA227AF1A J AB 220 µF,10V,ElectrolyticC16 RC-GZA475AF1H J AB 4.7 µF,50V,ElectrolyticC18 VCKYTV1HB102K J AA 0.001 µF,50VC19 RC-GZA225AF1H J AB 2.2 µF,50V,ElectrolyticC20 VCKYPA1HB331K J AA 330 pF,50VC21 RC-GZA106AF1C J AB 10 µF,16V,ElectrolyticC22 RC-GZA105AF1H J AB 1 µF,50V,ElectrolyticC23 RC-GZA106AF1C J AB 10 µF,16V,ElectrolyticC24 VCTYPA1CU104M J AB 0.1 µF,16VC25 VCKZPA1HF473Z J AA 0.047 µF,50VC26 VCTYPA1CU104M J AB 0.1 µF,16VC27 VCKYPA1HB102K J AA 0.001 µF,50VC29 VCKYPA1HB101K J AA 100 pF,50VC32 VCKYTV1EF104Z J AA 0.1 µF,25VC33,34 VCKYTV1HB221K J AA 220 pF,50VC51 VCCCPA1HH150J J AA 15 pF (CH),50VC52 VCCCPA1HH120J J AA 12 pF (CH),50VC53 RC-GZA107AF1A J AB 100 µF,10V,ElectrolyticC54 VCKZPA1HF223Z J AA 0.022 µF,50VC55 RC-GZA225AF1H J AB 2.2 µF,50V,ElectrolyticC56 VCKZPA1HF223Z J AA 0.022 µF,50VC57,58 VCKYTV1HB101K J AA 100 pF,50VC59 VCKZPA1HF103Z J AA 0.01 µF,50VC60 VCKYPA1HB222K J AA 0.0022 µF,50VC61 RC-GZA107AF1A J AB 100 µF,10V,ElectrolyticC68 VCKYTV1HB221K J AA 220 pF,50VC71,72 VCQYKA1HM223K J AB 0.022 µF,50V,MylarC73,74 RC-GZA105AF1H J AB 1 µF,50V,ElectrolyticC75 VCKYPA1HB101K J AA 100 pF,50VC105,106 VCKYPA1HB182K J AB 0.0018µF,50VC107,108 VCKYPA1HB821K J AA 820 pF,50VC109,110 VCKYPA1HB271K J AA 270 pF,50VC111,112 VCKYPA1HB331K J AA 330 pF,50VC113,114 RC-GZA476AF1C J AB 47 µF,16V,ElectrolyticC115,116 VCQYKA1HM183K J AB 0.018 µF,50V,MylarC117,118 RC-GZA106AF1C J AB 10 µF,16V,ElectrolyticC119 RC-GZA225AF1H J AB 2.2 µF,50V,ElectrolyticC120 RC-GZA476AF1C J AB 47 µF,16V,ElectrolyticC121,122 VCKZPA1HF103Z J AA 0.01 µF,50VC123 RC-GZA227AF1A J AB 220 µF,10V,ElectrolyticC201 RC-GZA107AF1C J AB 100 µF,16V,ElectrolyticC202 RC-GZA476AF1C J AB 47 µF,16V,ElectrolyticC203 VCKZPA1HF103Z J AA 0.01 µF,50VC204 VCKZPA1HF223Z J AA 0.022 µF,50VC205,206 RC-GZA476AF1C J AB 47 µF,16V,ElectrolyticC207 RC-GZA477AF1A J AC 470 µF,10V,ElectrolyticC208 VCKZPA1HF223Z J AA 0.022 µF,50VC209 VCKZPA1HF103Z J AA 0.01 µF,50VC210 VCKZPA1HF223Z J AA 0.022 µF,50VC211,212 VCKZPA1HF473Z J AA 0.047 µF,50VC213,214 RC-GZA105AF1H J AB 1 µF,50V,ElectrolyticC215,216 VCQYKA1HM104K J AB 0.1 µF,50V,MylarC217,218 VCQYKA1HM152K J AB 0.0015 µF,50V,MylarC219,220 RC-GZA105AF1H J AB 1 µF,50V,ElectrolyticC221,222 VCKYPA1HB102K J AA 0.001 µF,50VC223,224 RC-GZA104AF1H J AB 0.1 µF,50V,ElectrolyticC225 RC-GZA107AF1A J AB 100 µF,10V,ElectrolyticC226 VCKZPA1HF223Z J AA 0.022 µF,50VC227 RC-GZW478AF1C J AF 4700 µF,16V,ElectrolyticC229~232 RC-GZA105AF1H J AB 1 µF,50V,ElectrolyticC233,234 RC-GZA477AF1A J AC 470 µF,10V,ElectrolyticC235~238 RC-GZA107AF1A J AB 100 µF,10V,ElectrolyticC239,240 VCQYKA1HM104K J AB 0.1 µF,50V,MylarC241,242 RC-GZA105AF1H J AB 1 µF,50V,Electrolytic
NO. PRICERANK DESCRIPTIONPARTS CODENO. PARTS CODE
PRICERANK DESCRIPTION
QT-CD250
– 2 –
C243,244 VCKYPA1HB331K J AA 330 pF,50VC245 RC-GZA105AF1H J AB 1 µF,50V,ElectrolyticC246 RC-GZA106AF1C J AB 10 µF,16V,ElectrolyticC247 RC-GZA227AF1A J AB 220 µF,10V,ElectrolyticC249 VCKYPA1HB101K J AA 100 pF,50VC302 VCKZPA1HF223Z J AA 0.022 µF,50VC351 VCQYKA1HM222K J AA 0.0022 µF,50V,MylarC352 RC-GZA107AF1A J AB 100 µF,10V,ElectrolyticC353 VCQYKA1HM562K J AA 0.0056 µF,50V,MylarC354 VCQYKA1HM223K J AB 0.022 µF,50V,MylarC651~654 VCKZPA1HF223Z J AA 0.022 µF,50VC801 VCKZPA1HF103Z J AA 0.01 µF,50VC802 VCKZPA1HF223Z J AA 0.022 µF,50VC804 VCCCPA1HH2R0C J AA 2 pF (CH),50VC805 VCKYTV1EF223Z J AA 0.022 µF,25VC806 RC-GZA337AF1A J AB 330 µF,10V,ElectrolyticC807 VCKZPA1HF473Z J AA 0.047 µF,50VC810 RC-GZA106AF1C J AB 10 µF,16V,ElectrolyticC813 RC-GZA476AF1C J AB 47 µF,16V,ElectrolyticC814 VCKZPA1HF473Z J AA 0.047 µF,50VC815 RC-GZA476AF1C J AB 47 µF,16V,ElectrolyticC816 VCKZPA1HF223Z J AA 0.022 µF,50VC817 RC-GZA107AF1A J AB 100 µF,10V,ElectrolyticC818 VCCSPA1HL560J J AA 56 pF,50VC819,820 VCQYKA1HM104K J AB 0.1 µF,50V,MylarC821 RC-GZA107AF1A J AB 100 µF,10V,ElectrolyticC822 VCKZPA1HF473Z J AA 0.047 µF,50VC823 VCKYTV1EF223Z J AA 0.022 µF,25VC824,825 RC-GZA476AF1C J AB 47 µF,16V,ElectrolyticC826 VCCSPA1HL470J J AA 47 pF,50VC827 VCQYKA1HM153K J AB 0.015 µF,50V,MylarC828 VCKYPA1HB272K J AA 0.0027 µF,50VC829 VCKYPA1HB472K J AB 0.0047 µF,50VC830 VCQYKA1HM103K J AA 0.01 µF,50V,MylarC832 RC-GZA476AF1C J AB 47 µF,16V,ElectrolyticC833 VCQYKA1HM333K J AB 0.033 µF,50V,MylarC834,835 VCKYPA1HB471K J AA 470 pF,50VC836~839 VCQYKA1HM473K J AB 0.047 µF,50V,MylarC840 VCKYTV1EF104Z J AA 0.1 µF,25VC841,842 VCKZPA1HF473Z J AA 0.047 µF,50VC843 RC-GZA476AF1C J AB 47 µF,16V,ElectrolyticC844 RC-GZA107AF1A J AB 100 µF,10V,ElectrolyticC845 VCKZPA1HF473Z J AA 0.047 µF,50VC846 RC-GZA105AF1H J AB 1 µF,50V,ElectrolyticC847,848 RC-GZA226AF1C J AB 22 µF,16V,ElectrolyticC849,850 VCKYPA1HB222K J AA 0.0022 µF,50VC851,852 RC-GZA335AF1H J AB 3.3 µF,50V,ElectrolyticC853 VCKZPA1HF223Z J AA 0.022 µF,50VC854 VCKYPA1HB682K J AB 0.0068 µF,50VC856 VCKYPA1HB101K J AA 100 pF,50VC862 VCKYTV1EF104Z J AA 0.1 µF,25VC863 RC-GZA476AF1C J AB 47 µF,16V,ElectrolyticC864 VCKYTV1EF104Z J AA 0.1 µF,25VC865 RC-GZA107AF1A J AB 100 µF,10V,ElectrolyticC870 VCKYTV1HB101K J AA 100 pF,50VC872 VCKYTV1HB472K J AA 0.0047 µF,50V
RESISTORS
R1 VRD-ST2CD332J J AA 3.3 kohms,1/6WR2,3 VRD-ST2CD104J J AA 100 kohm,1/6WR4 VRD-ST2CD100J J AA 10 ohm,1/6WR5 VRD-ST2CD223J J AA 22 kohms,1/6WR6 VRD-ST2CD153J J AA 15 kohms,1/6WR7 VRD-ST2CD103J J AA 10 kohm,1/6WR8 VRD-ST2CD224J J AA 220 kohms,1/6WR10 VRD-ST2CD331J J AA 330 ohms,1/6WR12 VRD-ST2CD100J J AA 10 ohm,1/6WR13 VRD-ST2CD103J J AA 10 kohm,1/6WR14 VRS-TV2AB222J J AA 2.2 kohms,1/10WR15 VRD-ST2CD393J J AA 39 kohms,1/6WR16 VRD-ST2CD332J J AA 3.3 kohms,1/6WR17 VRD-ST2CD473J J AA 47 kohms,1/6WR18 VRD-ST2CD101J J AA 100 ohm,1/6WR20 VRS-TV2AB471J J AA 470 ohms,1/10WR51 VRD-ST2CD151J J AA 150 ohms,1/6WR52 VRD-ST2CD222J J AA 2.2 kohms,1/6WR53 VRD-ST2CD472J J AA 4.7 kohms,1/6WR54 VRD-ST2CD103J J AA 10 kohm,1/6WR55 VRD-ST2CD563J J AA 56 kohms,1/6WR58~62 VRD-ST2CD102J J AA 1 kohm,1/6W
R71,72 VRD-ST2CD472J J AA 4.7 kohms,1/6WR73,74 VRD-ST2CD332J J AA 3.3 kohms,1/6WR76 VRD-ST2CD821J J AA 820 ohms,1/6WR77 VRS-TV2AB332J J AA 3.3 kohms,1/10WR101,102 VRD-ST2CD331J J AA 330 ohms,1/6WR103,104 VRD-ST2CD123J J AA 12 kohms,1/6WR105,106 VRD-ST2CD153J J AA 15 kohms,1/6WR107,108 VRD-ST2CD102J J AA 1 kohm,1/6WR109,110 VRD-ST2CD121J J AA 120 ohms,1/6WR113,114 VRD-ST2CD822J J AA 8.2 kohms,1/6WR115~118 VRD-ST2CD392J J AA 3.9 kohms,1/6WR119,120 VRD-ST2CD332J J AA 3.3 kohms,1/6WR121,122 VRD-ST2CD272J J AA 2.7 kohms,1/6WR123,124 VRD-ST2CD332J J AA 3.3 kohms,1/6WR125 VRD-ST2CD684J J AA 680 kohms,1/6WR126 VRD-ST2CD101J J AA 100 ohm,1/6WR201 VRD-ST2CD122J J AA 1.2 kohms,1/6WR202 VRD-ST2CD103J J AA 10 kohm,1/6WR203 VRD-ST2CD271J J AA 270 ohms,1/6WR204 VRD-ST2CD222J J AA 2.2 kohms,1/6WR205 VRD-ST2CD472J J AA 4.7 kohms,1/6WR206,207 VRD-ST2CD561J J AA 560 ohms,1/6WR209,210 VRD-ST2CD102J J AA 1 kohm,1/6WR211,212 VRD-ST2CD473J J AA 47 kohms,1/6WR213 VRD-ST2CD101J J AA 100 ohm,1/6WR214~216 VRD-ST2CD102J J AA 1 kohm,1/6WR217,218 VRD-ST2CD822J J AA 8.2 kohms,1/6WR219,220 VRD-ST2CD224J J AA 220 kohms,1/6WR221~224 VRD-ST2CD472J J AA 4.7 kohms,1/6WR225 VRD-ST2CD104J J AA 100 kohm,1/6WR227,228 VRD-ST2CD121J J AA 120 ohms,1/6WR230 VRD-ST2EE2R7J J AA 2.7 ohms,1/4WR231,232 VRD-ST2CD121J J AA 120 ohms,1/6WR233,234 VRD-ST2CD222J J AA 2.2 kohms,1/6WR235,236 VRD-ST2CD473J J AA 47 kohms,1/6WR237,238 VRD-ST2CD272J J AA 2.7 kohms,1/6WR239,240 VRD-ST2CD222J J AA 2.2 kohms,1/6WR241,242 VRD-ST2CD103J J AA 10 kohm,1/6WR243,244 VRD-ST2CD564J J AA 560 kohms,1/6WR245,246 VRD-ST2CD562J J AA 5.6 kohms,1/6WR247,248 VRD-ST2CD561J J AA 560 ohms,1/6WR249 VRD-ST2CD221J J AA 220 ohms,1/6WR250 VRD-ST2CD474J J AA 470 kohms,1/6WR251,252 VRD-ST2CD223J J AA 22 kohms,1/6WR253 VRD-ST2CD392J J AA 3.9 kohms,1/6WR351 VRD-ST2CD101J J AA 100 ohm,1/6WR352 VRD-ST2CD151J J AA 150 ohms,1/6WR353 VRD-ST2CD333J J AA 33 kohms,1/6WR354 VRD-ST2CD4R7J J AA 4.7 ohms,1/6WR455,456 VRD-ST2CD153J J AA 15 kohms,1/6WR457,458 VRD-ST2CD102J J AA 1 kohm,1/6WR801 VRD-ST2EE220J J AA 22 ohms,1/4WR802 VRD-ST2CD222J J AA 2.2 kohms,1/6WR803 VRD-ST2CD823J J AA 82 kohms,1/6WR804 VRD-ST2CD683J J AA 68 kohms,1/6WR805 VRD-ST2CD393J J AA 39 kohms,1/6WR806 VRD-ST2CD272J J AA 2.7 kohms,1/6WR807 VRD-ST2CD102J J AA 1 kohm,1/6WR808 VRD-ST2CD101J J AA 100 ohm,1/6WR811 VRD-ST2CD223J J AA 22 kohms,1/6WR812 VRD-ST2CD102J J AA 1 kohm,1/6WR820 VRD-ST2CD473J J AA 47 kohms,1/6WR821 VRS-TV2AB102J J AA 1 kohm,1/10WR824,825 VRD-ST2CD103J J AA 10 kohm,1/6WR826 VRD-ST2CD224J J AA 220 kohms,1/6WR827 VRD-ST2CD153J J AA 15 kohms,1/6WR828 VRD-ST2CD103J J AA 10 kohm,1/6WR829 VRD-ST2CD332J J AA 3.3 kohms,1/6WR830 VRD-ST2CD103J J AA 10 kohm,1/6WR831~834 VRD-ST2CD332J J AA 3.3 kohms,1/6WR835,836 VRD-ST2CD271J J AA 270 ohms,1/6WR837,838 VRD-ST2CD103J J AA 10 kohm,1/6WR839 VRD-ST2CD473J J AA 47 kohms,1/6WR840 VRD-ST2EE100J J AA 10 ohm,1/4WR841 VRD-ST2CD562J J AA 5.6 kohms,1/6WR842 VRD-ST2CD223J J AA 22 kohms,1/6WR843 VRD-ST2CD472J J AA 4.7 kohms,1/6WR844,845 VRD-ST2CD223J J AA 22 kohms,1/6WR846 VRD-ST2CD472J J AA 4.7 kohms,1/6WR847 VRD-ST2CD562J J AA 5.6 kohms,1/6WR848 VRD-ST2CD103J J AA 10 kohm,1/6WR849 VRD-ST2CD183J J AA 18 kohms,1/6W
PRICERANK DESCRIPTIONNO. PARTS CODE NO. PARTS CODE PRICE
RANK DESCRIPTION
QT-CD250
– 3 –
R850 VRD-ST2CD152J J AA 1.5 kohms,1/6WR851~853 VRD-ST2CD222J J AA 2.2 kohms,1/6WR854 VRD-ST2CD101J J AA 100 ohm,1/6WR855 VRD-ST2CD183J J AA 18 kohms,1/6WR856 VRD-ST2CD153J J AA 15 kohms,1/6WR857 VRD-ST2CD473J J AA 47 kohms,1/6WR860 VRD-ST2CD472J J AA 4.7 kohms,1/6WR861 VRD-ST2CD103J J AA 10 kohm,1/6WR862 VRD-ST2CD473J J AA 47 kohms,1/6WR863 VRS-TV2AB182J J AA 1.8 kohms,1/10WR864 VRS-TV2AB105J J AA 1 Mohm,1/10WR865 VRD-ST2CD473J J AA 47 kohms,1/6WR866 VRD-ST2CD332J J AA 3.3 kohms,1/6WR867~873 VRD-ST2CD472J J AA 4.7 kohms,1/6WR875~878 VRD-ST2CD103J J AA 10 kohm,1/6WR879 VRD-ST2CD472J J AA 4.7 kohms,1/6WR882~895 VRD-ST2CD473J J AA 47 kohms,1/6WR896,897 VRS-TV2AB473J J AA 47 kohms,1/10WR898~901 VRD-ST2CD473J J AA 47 kohms,1/6W
OTHER CIRCUITRY PARTS
BI801/CNS801 QCNWN0158SJZZ J AF Connector Ass’y,8/8PinBI802/CNS802 QCNWN0159SJZZ J AD Connector Ass’y,5/5PinBI803/CNS803 QCNWN0115SJZZ J AE Connector Ass’y,6/6PinCNP101 QCNCW001DSJZZ J AC Plug,4PinCNP201 QCNCW001CSJZZ J AC Plug,3PinCNP602 QCNCW002CSJZZ J AD Plug,3PinCNP801 QCNCM010DAWZZ J Plug,4PinCNP803 QCNCM932FAFZZ J AC Plug,6PinCNS101 QCNWN0010SJZZ J AG Connector Ass’y,4PinCNS201 QCNWN0157SJZZ J AC Connector Ass’y,3PinCNS602 QCNWN0165SJZZ J AC Connector Ass’y,3PinCNS801 QCNCW010DAWZZ J Connector Ass’y,4PinFW801 QCNWN0166SJZZ J AD Flat Wire,12PinFW802 QCNWN0167SJZZ J AD Flat Wire,11PinHPJ201 QJAKM0001SJZZ J AG Jack,HeadphoneLCD801 RV-LX0009SJZZ J AM LCD DisplayM601(240-6) 9GD192112346 J AX Motor with Pulley [Tape]M701 RMOTV0409AFM1 J AN Motor with Gear [Sled]M702 RMOTV0408AFM3 J AN Motor with Chassis [Spindle]
! SO651 QSOCA0001SJZZ J AE AC Inlet Socketor
! SO651 QSOCA0005SJZZ J AE AC Inlet SocketSP201,202 RSPA10001SJ4P J Speaker,WooferSW102 QSW-S0001SJZZ J AD Switch,Slide Type
[Record/Playback]SW201 QSW-S0008SJZZ J AG Switch,Slide Type
[Function Selector]SW601(240-7) 9GD640101149 J Switch,Leaf Type [Tape Main]SW702 QSW-F9001AWZZ J AE Switch,Push Type [Pickup In]SW801 QSW-K0001SJZZ J AC Switch,Key Type
[Play/Pause/Tuning Up]SW802 QSW-K0001SJZZ J AC Switch,Key Type
[Stop/Tuning Down]SW803 QSW-K0001SJZZ J AC Switch,Key Type [Repeat/Band]SW804 QSW-K0001SJZZ J AC Switch,Key Type
[Tuner/Memory]SW805 QSW-K0001SJZZ J AC Switch,Key Type
[Cue/Preset Up]SW806 QSW-K0001SJZZ J AC Switch,Key Type
[Review/Preset Down]SW807 QSW-K0001SJZZ J AC Switch,Key Type [Volume Up]SW808 QSW-K0001SJZZ J AC Switch,Key Type [Volume Down]SW809 QSW-K0001SJZZ J AC Switch,Key Type [X-BASS]SW810 QSW-F0001SJZZ J AD Switch,Leaf [CD Lid]UN801 VHLN64H380A-1 J AK Remote Sensor,N64H380A
CD MECHANISM PARTS
301 NGERH0586AFZZ J AC Gear,Middle302 NGERH0587AFZZ J AC Gear,Drive303 MLEVP1054AFZZ J AC Rail,Guide304 NSFTM0291AFFW J AD Shaft,Guide305 PCUSG0613AFZZ J AC Cushion
! 306 DCTRH8003SJ01 J BC Pickup Unit Ass’y701 XBSSD26P06000 J AA Screw,ø2.6×6mm702 XHBSD20P05000 J AA Screw,ø2×5mm703 XBBSD20P03000 J AA Screw,ø2×3mm704 LX-WZ1070AFZZ J AA Washer,ø1.5×ø3.8×0.25mmM701 RMOTV0409AFM1 J AN Motor with Gear [Sled]
M702 RMOTV0408AFM3 J AN Motor with Chassis [Spindle]SW702 QSW-F9001AWZZ J AE Switch,Push Type [Pickup In]
CABINET PARTS
201 GCABA1045SJM1 J AR Front Cabinet202 GCABB1045SJSA J AR Top Cabinet203 GFTAT1004SJSB J AD CD Lid204 CHLDM1001SJ01 J AG Stabilizer Ass’y204- 1 PMAGF0002AWZZ J AE Magnet204- 2 LHLDM1001SJZZ J AC Holder,Stabilizer204- 3 PSHEZ0003SJZZ J AG Sheet,Stabilizer Holder205 GFTAB1009SJSB J AD Battery Compartment Lid,Rear206 GFTAC0004SJSB J Cassette Holder207 GCOVA1002SJSA J AB Cover,Remote Sensor208 HPNLC1052SJSA J AB Panel,Control209 HDECQ0038SJSA J AD Ring,Speaker210 LHLDZ1028SJZZ J AC Holder,CD Control PWB211 JBTN-0013SJSB J AB Button,Pause212 JBTN-0014SJSB J AB Button,Stop/Eject213 JBTN-0015SJSB J AB Button,Fast Forward214 JBTN-0016SJSB J AB Button,Rewind215 JBTN-0017SJSB J AB Button,Play216 JBTN-0018SJSB J AB Button,Record217 JHNDP1003SJSB J AG Handle218 JKNBK0026SJSA J AB Knob,X-BASS/Volume219 JKNBZ0043SJSA J AD Knob,Function220 JKNBZ0044SJSA J AB Button,CD Stop221 JKNBZ0045SJSA J AC Button,CD Play/Pause222 CGERH0001SJ01 J AF Damper Gear Ass’y223 LANGK0001SJFW J AC Bracket,Button224 LANGZ0004SJZA J Bracket,Battery225 LHLDA1001SJZZ J AC Holder,AM Bar Antenna226 LHLDW1001SJZZ J AD Nylon Band227 RCORF0002SJZZ J AC Core228 LHLDZ1027SJZZ J AB Holder,LCD229 MSPRC0004SJFN J AB Spring,Battery,-230 MSPRC0005SJFD J AB Spring,Battery,+/-231 MSPRD0002SJFD J AC Spring,CD Lid232 MSPRD0009SJFD J AB Spring,Cassette Holder Up233 MSPRZ0002SJFD J AB Spring,Rod Antenna234 LHLDZ1029SJZZ J AD Holder,CD Switch PWB235 PGUMS0001SJZZ J AB Cushion,CD Lid236 PSLDM3003SJFW J AB Bracket,Shield237 QANTR0003SJZZ J AL Rod Antenna238 MSPRP0002SJFW J AC Bracket,Record239 HDECQ0039SJSA J AD Decoration Plate,LCD Display240 CMECB0003SJ01 J AZ Tape Mechanism Ass’y240- 1 9GD192104309 J AR Pinch Roller Arm Ass’y240- 2 9GD19210703 J AE Belt,REW/FF240- 3 9GD19210938 J Belt,Main240- 4 9GD62140116 J AT Head,Record/Playback240- 5 9GD62071008 J AQ Head,Erase240- 5 9GD62091010 J AM Head,Erase240- 6(M601) 9GD192112346 J AX Motor with Pulley [Tape]240- 7(SW601) 9GD640101149 J Switch,Leaf Type [Tape Main]241 MSPRC0003SJFE J AF Spring,Battery,-242 PRDAR0029SJZZ J AC Heat Sink,Q206243 PRDAR0030SJZZ J Heat Sink,IC201244 GFTAB1010SJSA J AD Battery Compartment Lid,Bottom245 QCNWN0222SJZZ J Lead Wire with Lug601 XUBSD30P18000 J Screw,ø3×18mm602 XUBSD25P10000 J AB Screw,ø2.5×10mm603 XUPSD25P08000 J AB Screw,ø2.5×8mm604 XUBSD30P10000 J AA Screw,ø3×10mm605 XUBSD30P12000 J AA Screw,ø3×12mm606 XUPSD25P08000 J AB Screw,ø2.5×8mm607 XWHSD28-08120 J AB Washer,ø2.8×ø12×0.8mm610 XHPSD20P03000 J AA Screw,ø2×3mm
PACKING PARTS (For Central America)
SPAKA0036SJZZ J AG Packing Add.,Left/RightSPAKC0112SJZZ J Packing CaseSPAKZ0013SJZZ J AB Top Pad,Packing CaseSSAKH0001SJZZ J AC Polyethylene Bag,UnitSSAKK0002SJZZ J AC Polyethylene Bag,
AC Power Supply CordTLABR1098SJZZ J Label,Bar Code,Packing CaseTLABZ0015SJZZ J AC Label,VJ No.,Packing Case
NO. PARTS CODEPRICERANK DESCRIPTION
QT-CD250
– 4 –
ACCESSORIES
! QACCU0001SJ00 J AR AC Power Supply CordTINSE0040SJZZ J AC Operation ManualTLABZ SJZZ J Label,FeatureRRMCG0023SJSA J AU Remoto Control
J Battery Lid,Remoto Control
P.W.B. ASSEMBLY (Not Replacement Item)
PWB-A1~7 DCEK-0008SJ03 J — Main/CD Control/Power/Switch/Terminal A/Terminal B/Washer(Combined Ass’y)
PWB-B QPWBF3895AFZZ J AC CD Motor (PWB Only)
OTHER SERVICE PART
UDSKA0004AFZZ J AZ CD Pickup Lens Cleaner
QT-CD250
A
B
C
D
E
F
G
H
1 2 3 4 5 6Figure 5 CD MECHANISM EXPLODED VIEW
– 5 –
701304
701
302
301
702
303
M702
703x2
305x2
SW702
M701
305
PWB-B
704
306
QT-CD250
A
B
C
D
E
F
G
H
1 2 3 4 5 6Figure 6 CABINET EXPLODED VIEW
– 6 –
Note: Only the unit and consumale parts are supplied as parts supply for the Tape mechanism.
CDMECHANISM
217
PWB-A3
602x3
237
206
205
606SW810
607x3
SO651
605x2
224
605x2
T651
229
225
227
226
604x4
SP202
230
605x3
201
218
SP201604x4
604x7601x2
PWB-A1
604x4
LCD801
PWB-A2
PWB-A4
PWB-A5
PWB-A6
606
232
235
235 231604
605x2
605x2
603x2
211212
213214
215216
223
TAPEMECHANISM
240(240-1,240-2, 240-3,240-4, 240-5240-6(M601),240-7(SW601))
238
610
604
233
MotorM601
REW/FFClutch
Flywheel
FF/REW Belt
Main Belt
BELT CONNECTION
236
222
PWB-A7
202
SiliconGrease
SiliconGrease
219
221
220
208
603x6
603x4
234
210
228
244
241x3
242
Q206
603243
239
245
207
209
203
204
204-2
204-1
204-3
209
QT-CD250
PACKING OF THE SET (FOR U.S.A ONLY)• Setting position of switches and knobs
Tape Mechanism Control STOP STATE
FUNCTION SELECTOR OFF/TAPE
: Not Replacement Item
Polyethylene Bag, Unit SSAKH0001SJZZ
Packing Case SPAKC0112SJZZ
VJ No. Label TLABZ0015SJZZ
Top Pad, Packing Case SPAKZ0013SJZZ
Bar Code Label TLABR1098SJZZ
Feature Label
AC PowerSupply Cord
Packing Add., Left/Right SPAKA0036SJZZ
FRONT
FRONT
Operation Manual
R
L
FRONT
Polyethylene Bag,AC Power Supply Cord SSAKK0002SJZZ
RemoteControl
No part of this publication may be reproduced,stored in a retrieval system, or transmitted inany form or by any means, electronic, mechanical,photocopying, recording, or otherwise, withoutprior written permission of the publisher.
COPYRIGHT © 2000 BY SHARP CORPORATION
ALL RIGHTS RESERVED.
A0003-????NS•HA•C
SHARP CORPORATIONCommunication Systems GroupQuality & Reliability Control CenterHigashihiroshima, Hiroshima 739-0192, Japan
Printed in Japan
SC • LAG