manual: hk690i sm harmankardon en
TRANSCRIPT
The Harman Kardon
Model hk690i Manus No.70A | DIGITAL SYNTHESIZED QUARTZ-LOCKED STEREO RECEIVER
Technical Manual
240 CROSSWAYS PARK WEST, WOODBURY, N.Y. 11797, 1112'H15270A4 P.088911 1250 PRINTED IN JAPAN,
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hk690i
SPECIFICATIONS © FM SECTION Nominal Limit Tuning Range 87.5 ~ 108.0MHz 50dB Quieting Sensitivity Mono 16.6dBf < 18dBf Stereo 38.5dBF S 40dBF
Usable Sensitivity 11.5dBf S 14.5dBF Image Ratio 774B 2 70dB IF Rejection 95dB > 85dB Spurious Response Rejection 114dB = 95dB Capture Ratio 1.0dB < 2.0dB Alternate Channel Selectivity 63dB > 50dB AM Rejection 56dB = 45dB Signal to Noise Ratio Mono 82dB > 78dB Stereo 73dB 2 70dB
Total Harmonic Distortion (65dBf 1kHz Input) Mono 0.06% S$ 0.15 Stereo 0.08% < 0.3%
Stereo Separation at 1kHz 58dB > 45dB © AM SECTION Tuning Range 520 ~ 1,710kHz Usable Sensitivity 14uV < 20nV Selectivity §3dB > 35dB Signal to Noise Ratio 55dB > 50dB Image Rejection 44dB > 38dB IF Rejection 60dB 2 50dB
AUDIO SECTION Usable Sensitivity AUX/DAD 135mV + 25mV Phono MM 2.2mV + 0.2mV
Mc 120nV + 15uV Signal to Noise Ratio AUX/DAD 79.5dB 2 78dB Phono MM 79dB 2 77dB
MC 774B 2 74dB
LEAKAGE TEST
Nominal Limit Channel Separation at 10kHz AUX/DAD 54dB 2 45dB Phono MM 54dB 2 45dB
MC 58dB 2 45dB 1M Distortion Ratio 0.05% S 0.1% RMS Output Power 8Q, 1kHz, THD 0.08% 6aw > GOW 40, 1kHz, THD 0.08% 102w 2 90w
Damping Factor at 1kHz 67250 Tone Contro! Characteristics Bass Turnover Frequency 400Hz/200Hz Treble Turnover Frequency 2kH2/6kHz Bass at SOHz Boost 10dB + 2dB Cut ~10dB + 2dB
Treble at 10kHz Boost 10dB + 2dB Cut —10dB + 2dB
Loudness Control at 10kHz 3dB + 1dB at SOHz 10dB + 2dB
Subsonic Control at 15Hz 3dB + 1dB
DC Output Voltage L channel OmV + 60mV R channel OmV + 6OmV
RIAA Equalization at Tape Out (20H2/20kHz) 0.2dB + 0.5dB/0.1dB + 0.5dB
© DIMENTIONS (W x H x D) 17-7/16" x 5-1/4” x 14-3/8” (443 x 135 x 365 mm) 24 Ibs. 4 02. (11 kg)
© POWER SUPPLY AC120V, 60Hz © POWER CONSUMPTION 400w (440VA) This specification is the target of servicing. But, there is a case that the specification is not applicable to the measurement condition and instrument.
Specifications and components subject to change without notice. Overall performance will be maintained or improved.
@ WEIGHT
Before returning the unit to the user, perform the following safety checks: 1. Inspect all lead dress to make certain
that leads are not pinched or that hard- ware is not lodged between the chassis and other metal parts in the unit.
2. Be sure that any protective devices such 0 EACH EXPOSED
SIMPSON MODEL 229 ETC. FOR LEAKAGE TEST
TO AC GROUND SUCH i i i METAL SURFACE OF AS WATER OR BX CABLE as nonmetallic control knobs, insulating Yniruwocn esr HIGH GROUND” conouir etc.
fishpapers, cabinet backs, adjustment VOLTAGE LEAD and compartment covers or shields, isolation resistor-capacity networks, me- chanical insulators, etc. which were removed for servicing are properly reinstalled.
3. Be sure that no shock hazard exists; check for leakage current using Simpson Model 229 Leakage Tester, standard equipment item No. 21641, RCA Model WT540A or use alternate method as follows: Plug the AC line cord directly into a 120-volt AC receptacle (do not use an Isolation Transformer for this test). Using two clip leads, connect a 1500 ohm, 10-watt resistor paralleled by a 0.15mf capacitor, in series with all exposed metal cabinet parts and a known earth ground, such as a water pipe or conduit. Use a VTVM or VOM with 1000 ohms per volt, or higher, sensitivity to measure the AC voltage drop across the resistor. (See Diagram.) Move the resistor connection to each exposed metal part having 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. (This test should be performed with the power switch in both the On and Off positions.) A reading of 0.35 volt RMS or more is excessive and indicates a potential shock hazard which must be corrected before returning the unit to the owner,
OR +LEAD
OAC SCALEO
15K OHM 10W
|
0.15 MF
TEST PROBE
CONNECT TO KNOWN EARTH GROUND
TO EXPOSED METAL PARTS
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ALIGNMENT PROCEDURES
= AMPLIFIER SECTION “ @ DC balance and idling adjustments
is Conditions: ¢ Set the function switch to aux/DAD.
Set the volume to minimum.
3. FM ALIGNMENT
Conditions: Set the function switch to FM. Set the muting switch to off (om).
Set the speaker system switches 1 and 2 to OFF. = = oo = }
Make sure that primary supply voltage comes within 120 V + 2V. _ Connections required cou Adlusement | adjustment method Make the adjustment at a room temperature of 25°C. eae feo 2 : :
4 Adjust so that the wave- Ti ane as 1 Connect the FM signal generator |98,14MHz| 98.1MHz | 1201 (A) | forms in steps 1 and 2
‘ideation |, Cores value Uikte 100% modulation) to FM tocoye teaeaaie : i a is ne fof 8 0 NT terminals is ti indi.
Connect the digital voltmeter between TP1 and vR401 62108 : Discrimi- | "through the 3000 balanced 88:00MH2] 98,1MHz | 7201 (A) | At this tne tuned Indl id. (L channel) tor. dummy. =
DC balance srouny adjustment } 6 co i adjustment Connect the digital voltmeter between TP2 and , Connect the oscilloscope and Adjust so that the dis-
jus Connect. tule volver Benyenn Th2 feel 0+10mv | distortion meter to TAPE 1 OUT 98.1MHz | 98.1MHz | 7201 (B) | tortion becomes mini- . terminals, mum,
Connect the digital voltmeter to TP3 and TP4. ieee 30mV 4 Repeat steps 1 through 3. Idling Tuned F Jun Adjust so that the tuned adjustment Connect the digital voltmeter to TP5 and TP6. VR404 30mv 6 | indicator VR201 | indicator lights at 104V
{R channel) __| adjustment | , same as above. input C : Repeat steps 1 through 4 after aging for 10 minutes. | Connect the DC voltmeter to Adjust so that the DC
Signal TP9 (+) and ground (—). voltage becomes 11V at 6 oe F VR202 mV input. And then,
jjustment confirm the five signal
= TUNER SECTION indicator lights.
1. STANDARD FREQUENCY CHECK 98.1MHz Condition: « Set the function switch to FM. 7 {unmo- | 98.1MHz} VR151_ | 19.00kHz + 0.02kHz
dulation)
Measurement | Station | Adjustment roar Confirm the stereo indi- “frequency” | display |< location | Adlstment method 8 Hea Te eT aeaece, | 98.1MHz | 98.1MHz | VR3S1 | cator lights at 30uV .5%, L — R= 45.5%, arias
: # Contec the freaueney unter 8 | 98.3 MHz 109MHz + 2kHz |__| {Ske = 98) to FM sana 288 Se }. nerator, the stereo modu-
: iby « Apply signal generator output to lator to 19kHz only.
t © Mjactment | FM3002BAL ANT terminals | 98.1MHz | 98.1MHz | VR152_| Adjust so that L and R
2. AM ALIGNMENT through the 3002 balanced output level becomes
Conditions: e Set the function switch to AM. dummy. minimum.
. Set the muting switch to off (m=). «Connect the frequency counter to ji i
me TP10 (+) and ground (—). beni Catoee see ate 5 F Connect the oscilloscope and AC ini
: : Tat | MORE | Sauer (Admin | . =] voltmeter to TAPE 1 OUT Sustedmh when anly te Item Connections required rement tatio Adjustment one thod fi left channel of the stereo
( ee (eee lrequency, display | location ane il 10. terminals. 98.1MHz | 98.1MHz | VR301__| modulator modulated
i ‘i and so that the left chan-
Tuning SConnact the DC voltmeter to 520kHz | L252 1.5V + 0.05V nel output becomes mini- A TP11 (+) and ground (-~). mum when only the
2. | adjustment 1710kHz | TC252 23V £0.5V right channel modulated.
Radiate output of AM signal generator (400Hz 30% modula- ¥
mister tion) to AM loop antenna, 450kHz| 1600kHz | 73P) _ | Adlust so that peak and Connect oscilloscope to TPS (+) 82 | good waveform. and ground (—).
Radiate output of AM signal generator (400Hz 30% modula- 600kHz} 600kHz L251
Tracking tion) to AM loop antenna. Maximi:
adjustment | * Connect oscilloscope and AC Mexiize she cutout voltmeter to TAPE 1 OUT termi- |1400kHz| 1400kHz | C251 : nals.
; Repeat steps 4 and 5. x Tuned © Radiate output of AM signal gener- Confirm the tuned indi-
inalestor ator (400Hz 30% modulation) to | 1000kHz | 1000kHz cator lights at 60 dB confirma- Ps at tion AM loop antenna. input.
ALIGNMENT PROCEDURES
= AMPLIFIER SECTION © DC balance and idling adjustments
Conditions: Set the function switch to aux/DAD. Set the volume to minimum. «Set the speaker system switches 1 and 2 to OFF.
Make sure that primary supply voltage comes within 120 V + 2V.
Make the adjustment at a room temperature of 25°C.
: hoarse | Correct value
Connect the digital voltmeter between TP1 and VR401
De balance |__sround. (L channel) oF tony, adjustment Connect the digital voltmeter between TP2 and VR402 0+10mV
ground. (R channel) a |
rs R403 ids Connect the digital voltmeter to TP3 and TP4. (L channel) 30mV
adjustment af VR404 Connect the digital voltmeter to TPS and TP6. (R channel) 30mV
Repeat steps 1 through 4 after aging for 10 minutes.
= TUNER SECTION 1. STANDARD FREQUENCY CHECK
Condition: « Set the function switch to FM.
ee Station Adjustment eo ve
: display _ location Adjustment method
Connect the frequency counter to TP? (+) and ground (~). 98.3 MHz 109MHz + 2kHz
2. AM ALIGNMENT Conditions: e Set the function switch to AM.
Set the muting switch to off (=).
Item Connections required | rement | Suen” Adjustment | adjustment method Loe i ee lfrequency jay tion Saee
Tuning ve Connect the DG Volttietsr to’ 520kHz | L252 1.5V £0.05V voltage iat aejusenvent | Pt (+) and ground (-). 1710kHz | TC252 23V + 0.5V
Radiate output of AM signal generator (400Hz 30% modula- A
Mijustment | _ tion) to AM loop antenna, 450kHz| 1600kHz | 1251 | Adjust so that peak and «Connect oscilloscope to TPS (+) OE «| Abed Wevstent: and ground (—).
Radiate output of AM signal 4 generator (400Hz 30% modula. | 600kHz| 600kHz |) L251
Tracking tion) to AM loop antenna. Maximize the output
adjustment | * Connect oscilloscope and AC level, voltmeter to TAPE 1 OUT termi- |1400kHz| 1400kHz | C251 nals.
Repeat steps 4 and 5.
Auned Radiate output of AM signal gener- Confirm the tuned indi- ble ae ator (400Hz 30% modulation) to |1000kHz | 1000kHz cator lights at 60 dB tion AM loop antenna. bil input. _ |
3.5
put
d indi- dB
3. FM ALIGNMENT Conditions: Set the function switch to FM.
Set the muting switch to off (m=).
step| Item Connections required Alvan ‘Adjustment method
Adjust so that the wave- 4 Connect the FM signal generator |98.14MHz| 98.1MHz | 1201 (A) | forms in steps 1 and 2
- (1kHz 100% modulation) to FM i beconie the same level: A ie 3002 BAL ANT terminals At this time tuned indi- 2 | discrimi. | through the 3009 balanced 98.06MHHe| 98.12 | T201 (A) | At this tr
nator dummy. z
| adjustment | «Connect the oscilloscope and ‘Adjust so that the dis- 3 distortion meter to TAPE 1 OUT | 98-1MHz | 98.1MHz | 7201 (8) | tortion becomes mini-
terminals. mum.
4 Repeat steps 1 through 3.
Tuned Adjust so that the tuned § | indicator VR201 indicator lights at 10uV
__| adjustment | , same as above. input.
Connect the DC voltmeter to Adjust so that the DC Signal TPQ (+) and ground (—). voltage becomes 11V at
6 | indicator VR202 AmV input. And then, adjustment confirm the five signal
indicator lights.
98.1MHz 7 (unmo- | 98.1MHz VR151 19.00kHz + 0.02kHz
ulation) Confirm the stereo indi-
8 «Connect the stereo modulator, | 9g. imiz | 98.1MHz | VR351__| cator lights at 302V (L + R = 45.5%, L — R = 45.5%, +£2dB input. 19kHz = 9%) to FM signal — ~ generator. Set the stereo modu-
PX Apply signal generator output to lator to 19kHz only. 9 si FM 3002 BAL ANT terminals 98.1MHz | 98.1MHz | VR152 | Adjust so that L and R
_ | Adiustment | through the 3002 balanced Outpur level beams dummy. minimum.
Connect the frequency counter to’ Adjust so that the right
TP10 (+) and ground (—-). channel output becomes Connect the oscilloscope and AC minimum when only the
voltmeter to TAPE 1 OUT left channel of the stereo 10 terminals. 98.1MHz | 98.1MHz | VR301_ | modulator modulated
and so that the left chan- 2 nel output becomes mini-| ‘ mum when only the
right channel modulated.
GENERAL UNIT EXPLODED VIEW A B
DISASSEMBLY PROCEDURES (REFER TO PAGES 5 AND 18)
CABINET TOP REMOVAL Remove 6 screws @ and then remove the cabinet top.
FRONT PANEL ASSEMBLY REMOVAL . Remove the cabinet top. (Refer to step [1] .) . Pull off Volume, Bass, Treble and Balance knobs (105 and 146).
. Remove 6 screws © and then remove the front panel assembly.
o No
TUNER P.C. BOARD (PCB-2) REMOVAL Remove the cabinet top. (Refer to step [1] .)
. Disconnect J302, J303 and J351 from P302, P303 and P351 on the tuner P.C. board (PCB-2).
3. Open the lid of connectors (P301, P352 and P353) on the tuner P.C. board (PCB-2) and then disconnect the lead wires.
4, Remove 6 screws @ and then remove the tuner P.C. board (PCB-2) with back plate (136), shield plate (172) and brackets (181 and 252),
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[4] PHONO EQUALIZER P.C. BOARD (PCB-3) REMOVAL
i Remove, the tuner P.C. board (PCB-2). (Refer to step .)
no= . Remove 8 screws ® and then remove the phono equalizer P.C. board (PCB-3) with MC amp. P.C. board (PCB-4) and holder (198). At this time, open the lid of connectors (P601, P602, P603, P604, P605 and P801) on the phono equalizer P.C, board (PCB-3) and then disconnect the lead wires and unsolder the lead wires from phono equalizer P.C. board (PCB-3).
CIRCUIT DESCRIPTION
(1] MUTING CIRCUIT The muting control voltage is taken out from (2 pin of 1201 and then fed to the base of 205. At the weak station or detuned point, the (2 pin becomes high level, Q205 becomes low, 0357 is tuned off, NAND C352 is tuned to low, Q360 is tuned to on, 0361 (left channel) and Q362 (right channel) are tuned to on and muting operation is completed.
FM The output of local oscillator in the front-end is fed to © pin of the pre-scaler 1C701 and then divided by 30 or 32 and fed to @7) pin of the PLL synthesizer 1C702. The standard quartz oscillator output (4.5MHz) is divid- ed by 180 in 1C702 and 25kHz standard signal is got. The divided local oscillator output is compared with the 25kHz standard signal in the phase comparator. When the divided local oscillator frequency is higher than standard frequency, @5) pin of 1C702 becomes high level but when it is lower, 8) pin of IC702 becomes low level. When the both frequencies are equal, 5) pin be- comes floating. @§ pin output of 1C702 is fed to the vari-cap diode of
the front-end through L.P.F. (Q702, Q703, Q712) and controls the frequency of VCO (local oscillator fre- quency). 2) AM The local oscillator output of AM 1C251 is fed to @9) pin of the PLL synthesizer 1C702 and divided. The standard quartz oscillator output (4.5MHz) is divided by 450 in 1C702 and 10kHz standard signal is got. The divided local oscillator output is compared with the 10kHz standard signal in phase comparator.
[2] SYNTHESIZER SECTION 1)
(5) POWER OUTPUT P.C. BOARD (PCB-1) REMOVAL 1. Remove the phono equalizer and MC amp. P.C. boards
(PCB-3 and PCB-4). (Refer to step 4) .) 2, Remove 5 screws @ and 2 shafts (242) and then
remove the power output P.C. board (PCB-1). At this time, open the lid of connector (P401) on the power output P.C. board (PCB-1) and then disconnect the lead wires and unsolder the lead wires from power output P.C. board (PCB-1).
[6] SPEAKER SWITCH AND SPEAKER TERMINAL P.C. BOARDS (PCB-11 AND PCB-12) REMOVAL
1, Remove the front panel assembly and power output
P.C. board (PCB-1). (Refer to steps 2) and 5] .) 2. Remove 3 screws @ and then remove the panel back
assembly (104) and the panel (140). 3. Remove 4 screws © and then remove the bracket
(253). 4, Pull off the 2 push button assemblies (109). 5. Remove 2 screws @ and then remove the speaker
switch and speaker terminal P.C. boards (PCB-11 and PCB-12) with bracket (183). If necessary, un- solder the lead wires.
TONE CONTROL P.C. BOARD (PCB-5) REMOVAL . Remove the speaker switch and speaker terminal
P.C. boards (PCB-11 and PCB-12). (Refer to step 6} .) 2. Remove 3 hexagon nuts @ and 2 screws @ and
then remove the tone control P.C. board (PCB-5). At this time, open the lid of connector (P501) on the tone control P.C. board (PCB-5) and then disconnect the lead wires and unsolder the lead wires from tone control P.C, board (PCB-5).
[3] PRESET MEMORY 1) Memorizing When one of the preset keys, M1 to M8 is depressed, one of the (2 to 49 pins of 1702 becomes high level. The displayed frequency is memorized into the memory (RAM) with correspond to the depressed key. 2) Recalling When one of the preset keys, M1 to M8 is depressed, the contents of the memory (frequency) is recalled.
[4] FM/AM STATION SCANNING 1) When tuning mode switch is set to AUTO When the UP key is depressed, the frequency rises at saw tooth wave mode and when DOWN key is depressed, the frequency falls. When the high level input is fed to stop terminal ( 3) pin of 1C702), the scanning is stopped. 2) When tuning mode switch is set to MANUAL Whenever UP or DOWN key is depressed once, the fre- quency rises or falls by one step (channel space).
[5] OVERLOAD PROTECTION (LEFT CHANNEL) As soon as the current over rated power flows, the vol- tage between both emitters of 0441 and 0443 rises, Q9, Q8 and Q7 are turned to on, Q1 is turned to off. So Q3 (schmit trigger circuit) is tuned to off. The gate of 0401 becomes OV and 0401 is turned to on. The input to power amp. is cut and 0417 is turned to off. So the operation of pre-driver, driver and power stages stops and the circuit is protected.
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GENERAL UNIT EXPLODED VIEW
DISASSEMBLY PROCEDURES (REFER TO PAGES 5 AND 18)
[(I]CABINET TOP REMOVAL Remove 6 screws @ and then remove the cabinet top.
FRONT PANEL ASSEMBLY REMOVAL . Remove the cabinet top. (Refer to step [1 .)
2. Pull off Volume, Bass, Treble and Balance knobs (105 and 146).
3. Remove 6 screws © and then remove the front panel assembly.
(3] TUNER P.C. BOARD (PCB-2) REMOVAL 41. Remove the cabinet top. (Refer to step [1] .) 2. Disconnect J302, J303 and J351 from P302, P303
and P351 on the tuner P.C. board (PCB-2). 3. Open the lid of connectors (P301, P352 and P353) on
the tuner P.C, board (PCB-2) and then disconnect the lead wires.
4, Remove 6 screws @ and then remove the tuner P.C. board (PCB-2) with back plate (136), shield plate (172) and brackets (181 and 252).
[4] PHONO EQUALIZER P.C, BOARD (PCB-3) REMOVAL
i ar the tuner P.C. board (PCB-2). (Refer to step -)
2. Remove 8 screws ® and then remove the phono equalizer P.C. board (PCB-3) with MC amp, P.C. board (PCB-4) and holder (198). At this time, open the lid of connectors (P601, P602, P603, P604, P605 and P801) on the phono equalizer P.C. board (PCB-3) and then disconnect the lead wires and unsolder the lead wires from phono equalizer P.C. board (PCB-3).
CIRCUIT DESCRIPTION
[1] MUTING CIRCUIT The muting control voltage is taken out from (2 pin of 1C201 and then fed to the base of O205. At the weak station or detuned point, the (2 pin becomes high level, Q205 becomes low, 0357 is tuned off, NAND IC352 is tuned to low, 0360 is tuned to on, 0361 (left channel) and Q362 (right channel) are tuned to on and muting operation is completed.
[2] SYNTHESIZER SECTION 1) FM The output of local oscillator in the front-end is fed to © pin of the pre-scaler 1C701 and then divided by 30 or 32 and fed to G7) pin of the PLL synthesizer 1C702. The standard quartz oscillator output (4.5MHz) is divid- ed by 180 in 1C702 and 25kHz standard signal is got. The divided local oscillator output is compared with the 25kHz standard signal in the phase comparator.
When the divided local oscillator frequency is higher than standard frequency, @8) pin of 1C702 becomes high level but when it is lower, 85) pin of 1C702 becomes low level. When the both frequencies are equal, @8) pin be- comes floating. @ pin output of 1C702 is fed to the vari-cap diode of
the front-end through L.P.F. (Q702, 0703, Q712) and controls the frequency of VCO (local oscillator fre- quency). 2) AM The local oscillator output of AM 1C251 is fed to @9) pin of the PLL synthesizer 1C702 and divided. The standard quartz oscillator output (4.5MHz) is divided by 450 in 1€702 and 10kHz standard signal is got. The divided local oscillator output is compared with the 10kHz standard signal in phase comparator.
5] POWER OUTPUT P.C. BOARD (PCB-1) REMOVAL 1, Remove the phono equalizer and MC amp. P.C, boards
(PCB-3 and PCB-4). (Refer to step 4.) 2. Remove 5 screws @ and 2 shafts (242) and then
remove the power output P.C. board (PCB-1). At this time, open the lid of connector (P401) on the power output P.C. board (PCB-1) and then disconnect the lead wires and unsolder the lead wires from power output P.C. board (PCB-1).
(SPEAKER SWITCH AND SPEAKER TERMINAL P.C. BOARDS (PCB-11 AND PCB-12) REMOVAL
1. Remove the front panel assembly and power output P.C. board (PCB-1). (Refer to steps 2] and 5) .)
. Remove 3 screws @ and then remove the panel back assembly (104) and the panel (140).
. Remove 4 screws @ and then remove the bracket (253).
. Pull off the 2 push button assemblies (109). Remove 2 screws @ and then remove the speaker switch and speaker terminal P.C. boards (PCB-11 and PCB-12) with bracket (183). If necessary, un- solder the lead wires.
a 8 N
[27] TONE CONTROL P.C. BOARD (PCB-5) REMOVAL . Remove the speaker switch and speaker terminal P.C. boards (PCB-11 and PCB-12). (Refer to step 6] .)
2. Remove 3 hexagon nuts @ and 2 screws @ and then remove the tone contro! P.C, board (PCB-5). At this time, open the lid of connector (P501) on the tone control P.C. board (PCB-5) and then disconnect the lead wires and unsolder the lead wires from tone control P.C. board (PCB-5).
[3] PRESET MEMORY 1) Memorizing When one of the preset keys, M1 to MB is depressed, one of the (@ to 49 pins of C702 becomes high level. The displayed frequency is memorized into the memory (RAM) with correspond to the depressed key, 2) Recalling When one of the preset keys, M1 to M8 is depressed, the contents of the memory (frequency) is recalled.
[4] FM/AM STATION SCANNING 1) When tuning mode switch is set to AUTO When the UP key is depressed, the frequency rises at saw tooth wave mode and when DOWN key is depressed, the frequency falls, When the high level input is fed to stop terminal ( 83) pin of 1C702), the scanning is stopped. 2) When tuning mode switch is set to MANUAL Whenever UP or DOWN key is depressed once, the fre- quency rises or falls by one step (channel space).
[5] OVERLOAD PROTECTION (LEFT CHANNEL) As soon as the current over rated power flows, the vol- tage between both emitters of 441 and 0443 rises, Q9, Q8 and Q7 are turned to on, Q1 is turned to off. So O3 (schmit trigger circuit) is tuned to off. The gate of Q401 becomes OV and Q401 is turned to on. The input to power amp. is cut and 0417 is turned to off, So the Operation of pre-driver, driver and power stages stops and the circuit is protected.
BLOCK DIAGRAM
TIMING
FM RE FmRe.
Ss SAMPLE & roel, + [ais
4 ‘SAMPLING PULSE.
> sete 4 ters
i FM PLLMPX
3 35 tome af PLU SYNTHESIZER
FL FREQUENCY DISPLAY, DRIVER
PROTECTOR
CK HEADPHONES
From Reh
INPUT SELECTOR ‘swireHes
CHART
Frequency display timing chart of 1C702 (TC9147AP)
pee ——————___—_— —| MUTE 10ms “1 be
cKI
CK2
DATA 2° 2! 2? 2° 2% 2° 2° 2” 2° 2° 2!
BAND DATA FREQUENCY DATA 11 BIT 5 BIT
16 BIT
START SIGNAL 1 CYCLE (1.8ms)
: hk690i
GENERAL UNIT PARTS LIST
Ref. No. Part No. Description
101 A443-HK690A Front Panel Assembly 102 A414-HK690A Cabinet Top Assembly
103 A424-HK690A, Cabinet Bottom Assembly 104 A554-HK690A, Panel Back Assembly 105 A630-HK690A, Knob Assembly, Volume 106 A662-HK690A, Push Button Assembly, Power 107 A662-HK690B Push Button Assembly, Tape Monitor, Function (x 7) 108 A662-HK690C Push Button Assembly, Bass Turnover, Tone Defeat, Treble
Turnover, Tape Copy, Subsonic Filter, Loudness, MC,
Mono Mode, High Blend, Muting (x 10) 109 A662-HK690D Push Button Assembly, Speakers (x 2) 110 A662-HK690E Push Button Assembly, Tuning (x 2) 111 B211-HK690A Chassis Assembly, T1 112 A424-HK690B Cabinet Back Assembly (for Canada model) 112 1424-11601 Cabinet Back 131 1319-0139 Foot 136 1514-14601 Plate 140 1541-02302 Panel
146 1630-02501 Knob, Bass, Treble, Balance 155 1662-12701 Push Button, Auto, Manual, Memory, FM/AM Preset Memory (x 11) 169 2112-11769 Sponge 170 2114-415027 Bushing
171 2114-71283 Bushing 172 2216-7146 Shield Plate 173 2211-7250 Chassis, Front 175 2211-7253 Chassis, Right 177 2219-7645 Bracket
178 2219-7671 Bracket 179 2219-7879 Bracket 180 2219-7954 Bracket
181 2219-7914 Bracket 182 2219-7955 Bracket
183 2219-7958 Bracket 184 2219-7917 Bracket 185 2219-7919 Bracket
186 2219-7920 Bracket 187 2219-7921 Bracket
188 2219-7946 Bracket 189 2224-7089 Insulator 190 2224-7090 Insulator
191 2112-11755 Sponge 192 2112-11736 Sponge 194 2222-7154 Heat Sink 195 2218-7011 Holding Bracket
196 2218-7001 Holding Bracket 198 2240-7183 Holder 199 2240-7176 Holder 200 2240-7120 Holder 204 2240-7206 Holder 207 2112-11231 Sponge 209 2310-7015 Special Screw 210 2410-7005 Special Washer 212 2224-7069 Insulator
Ref, No. Part No. Description
221 2347-300627 Self-Tapping Screw (+) (3 x 6 mm) 223 2347-300627 Self-Tapping Screw (+) (3 x 6 mm) 225 2347-300627 Self-Tapping Screw (+) (3 x 6 mm) 227 2347-300627 Self-Tapping Screw (+) (3 x 6 mm) 229 2347-301041 Self-Tapping Screw (+) (3 x 10 mm) 230 2347-300847 Self-Tapping Screw (+) (3 x 8 mm) 232 2347-301027 Self-Tapping Screw (+) (3 x 10 mm) 234 2347-400647 Self-Tapping Screw (+) (4 x 6 mm) 235 2347-300627 Self-Tapping Screw (+) (3 x 6 mm) 239 2440-7016 Special Nut
241 2440-61 Special Nut 242 2601-7126 Shaft 248 2651-210189 Spring 251 2219-7964 Bracket 252 2219-7953 Bracket 253 2219-7956 Bracket
254 2219-7957 Bracket 255 2219-7959 Bracket 263 2440-7011 Special Nut 302 2222-7081 Heat Sink, PCB-2
307 2446-30129 Hexagon Nut 396 2240-7218 Holder, Antenna
1111-J30162 Owner Guide 1111-J30163
1222-7264 1222-7265
1221-737167
Owner Guide (for Canada model) Packing Cushion, Left Packing Cushion, Right Packing Box
ELECTRICAL PARTS LIST
Ref, No. Description
API 4161-71151 Power Cord AT1 5584-701452 Power Transformer e 4S01 4474-156 AC Outlet, Switched, Unswitched ARI 5135-335J50P Resistor, 3.3MQ, +5%, 1/2W, Carbon L253 5911-239 AM Loop Antenna J302 4163-043003 Connector with Lead Wire, 4 Pos. 1303 4163-033503 Connector with Lead Wire, 3 Pos. LUG1 4211-4 Lug Terminat LUG2 4211-21 Lug Terminal
1397-6 Dipole Antenna (Accessory) 4442-14 Pin Plug (for Tape 1 IN Jacks) (Accessory)
ae : i __ PCB-1 POWER OUTPUT: : : jl RESISTORS
R423, 424 5174-621381 6202, +1%, 1/4W, Metal R425, 426 5174-330381 330, +1%, 1/4W, Metal R433, 434 5174-243381 24kQ, 21%, 1/4W, Metal
AR443, 444, 445, 446,451, 5102-1514713 1502, +2%, 1/4W, Fuse 452, 453, 454
R447, 448, 449, 450 5174-123381 12kQ, +1%, 1/4W, Metal R459, 460 5174-131381 1302, +1%, 1/4W, Metal
AR461, 462, 463, 464 5102-2205711 220, +5%, 1W, Fuse AR465, 466, 467, 468 5102-1014713 10022, +2%, 1/4W, Fuse AR469, 470, 471, 472 5102-2R2579 2.20, 45%, 1/4W, Fuse R483/485, 484/486 5275-R22671 0.222, 10%, 5Wx2, Cement : R487, 488 5175-150571 152, 5%, 3W, Metal | R489, 490 5171-220572 220, +5%, 1W, Metal R491, 492 5171-1R5572 1.50, +5%, 1W, Metal R731 ~ 737, 738 ~ 744, 5212-3 Resistor Composite, 47kQ " 745 ~ 751 €
i CONTROLS vR401, 402 5101-50301923 50k2 VR403, 404 5101-20101923 2002 |
{ CAPACITORS C2, 3, 4,5 5352-1041957 0.1uF, +10%, 250V, Metalized Polyester
ACE, 7, 8,9 5341-478F0955 4700uF, +20%, 50V, Electrolytic c10 5345-475F0952 4.7uF, £20%, 50V, Electrolytic cn 5345-336B0952 33uF, +20%, 10V, Electrolytic ¢ C15 5353-330534 33pF, +5%, 500V, Mica C401, 402 5345-107B0951 100yF, $20%, 10V, Electrolytic C403, 404 5359-4715851 470pF, 5%, 100V, Polypropylene C405,-406 5345-476D041 47uF , #20%, 25V, Electrolytic 407, 408 5353-020934 2pF, £0.5pF, 500V, Mica C409, 410 5353-680534 G8pF, +5%, 500V, Mica C411, 412, 417, 418 5345-106C041 10uF, #20%, 16V, Electrolytic
AC413, 414, 415, 416 5345-228F0962 2200uF, +20%, SOV, Electrolytic
TRANSISTORS a1,3 5613-2603(E) 2SC2603(E) or 2SC2603(F) 02, 4,7 5611-1115(E) 2SA1115(E) or 251115(F) 8, 403, 404, 405, 406, 5613-2240(BL) 2SC2240(BL) 413, 414, 419, 420
Q9, 10, 411, 412, 415, 416, 5611-970(BL) 2SA970(BL) 417, 418
Q401, 402 5616-2SK364(V) F.E.T., 25K364(V) or 25K364(BL) 0407, 408, 409, 410 5613-2603(F) 2SC2603(F) or 25C2603(E) ¢ 0421, 422, 425, 426 5612-646A(C) 2SB646A(C) 5 0423, 424, 427, 428 5614-666A(C) 2SD666A(C) 0429, 430 5613-945(K) 2SC945(K) 0433, 434 5614-667A(C) 2SD667A(C) 0435, 436 5612-647A(C) 2SB647A(C) 0437, 438 5611-1111(Q) 2SA1111(Q), 2SA1111(R)or2SA1111(S)
(w/Insulator & Bushing)
10
Ref. No. Part No, Description
0439, 440 5613-2591(Q) 2SC2591(Q), 25C2591(R) or 25C2591(S) {w/Insulator & Bushing)
0441, 442 5613-3281(0) 2SC3281{O) or 2SC3281(R) (w/Insulator) 0443, 444 §611-1302(0) 28A1302(O) or 25A1302(R) (w/Insul ator)
DIODES AD1, 2 5685-D5FB20F1 Bridge Silicon, D5FB20 D3 5636-1S2471 182471 D4 5635-RD5R6EB2 Zener, RDS.6EB2 D5, 401, 402 5631-1S2473 182473 D403, 404 5635-HZ15-1L Zener, HZ15-1L D405, 406, 407, 408 5632-10DF2 10DF2
D409, 410 5641-MV12YM Varistor, MV12YM
COILS L1, 2,3,4 5597-35502 Ferrite Bead L5,6 5991-7165
MISCELLANEOUS P4o1 4443-030185 Connector, 3 Pos.
PCB.2 TUNER P.C. BOARD
11
RESISTORS
AR71 5102-2205716 220, +5%, 1W, Fuse
AR82 5102-1014715 1002, +2%, 1/4W, Fuse R158 5174-183381 18kQ, 1%, 1/4W, Metal
AR159, 268 5102-1004715 102, +2%, 1/4W, Fuse
AR225 5102-3304715 330, +2%, 1/4W, Fuse R712 5171-221581 2202, +5%, 1W, Metal |
CONTROLS
vR151 5101-4727173 4.7kQ. : VR152, 201, 202, 351 5101-50371920 50kQB | VR301 5101-50271920 5kOB VR352 5113-50372136 50kQ, Mute Adj. (w/Hexagon Nut)
CAPACITORS 3 AC72 5345-338D0962 3300uF, +20%, 25V, Electrolytic 73, 217 5345-108-16 1000uF, +20%, 16V, Electrolytic C74 5345-336-35 33uF, 20%, 35V, Electrolytic C151 5345-226C0952 22uF, +20%, 16V, Electrolytic
C152 5359-2725851 2700pF, +5%, 100V, Polypropylene
C153 5359-6815851 680pF, +5%, 100V, Polypropylene |! C154, 210, 271, 351, 352, 5345-106-16 10uF, 20%, 16V, Electrolytic | 353, 354
C155 5345-475D0952 4.7uF, 20%, 25V, Electrolytic | C156, 251, 716, 717 5345-225F0952 2.2uF, +20%, 50V, Electrolytic C158, 273 5345-105F0952 IF, 20%, 50V, Electrolytic | C159, 160, 209 5359-1015851 100pF, +5%, 100V, Polypropylene C161, 164, 166, 260 5359-4715851 470pF, +5%, 100V, Polypropylene | C162, 167 5359-2215851 220pF, +5%, 100V, Polypropylene C163 5359-1515851 150pF, +5%, 100V, Polypropylene C165 5359-8215851 820pF, +5%, 100V, Polypropylene C168, 169 5345-106C0952 10uF, 20%, 16V, Electrolytic | C170 5345-227-16 220uF, +20%, 16V, Electrolytic C171, 172, 305, 306 5359-1025851 1000pF, +5%, 100V, Polypropylene C173 5359-1215851 120pF, +5%, 100V, Polypropylene C215 5345-104F0952 O.1uF, +20%, 50V, Electrolytic | C216 5345-105-50 1uF, +20%, 50V, Electrolytic j C262 5345-475-25 4.7uF, 20%, 25V, Electrolytic C263 5345-335-50 3.3uF, 20%, 50V, Electrolytic 265 5345-225-50 2.2uF, +20%, 5OV, Electrolytic i C270 5345-107-16 100uF, +20%, 16V, Electrolytic | C301, 302, 303, 304 5359-1525851 1500pF, +5%, 100V, Polypropylene i C307, 308 5345-226C0951 22uF, 20%, 16V, Electrolytic C309, 310 5359-7525851 7500pF, +5%, 100V, Polypropylene
Ref. No. Part No. Description
C311, 312 5345-225F0951 2.2uF, £20%, 50V, Electrolytic C315, 316 5359-3025851 3000pF, +5%, 100V, Polypropylene C355 5345-226-16 22uF, +20%, 16V, Electrolytic - C703 5345-476-10 47uF, 20%, 10V, Electrolytic € 709 5345-334F0951 0.33uF, +20%, 50V, Electrolytic c7 5343-2260653 22uF, +20%, 6.3V, Tantalum Electrolytic c712 5350-4730H651 0.047uF, +80% —20%, 5V, Special C715 5345-227-10 220uF, #20%, 10V, Electrolytic TC251, 252 5371-93 Trimmer Capacitor
INTEGRATED CIRCUITS 1C151 5652-BA1330 BA1330 1C152 5654-TC4049BP TC4049BP
: 1C153 5654-TC4066BP TC4066BP : 1201 5652-HA11225 HA11225
1C251 5652-LA1245 LA1245 1C351 5652-AN6875 AN6875 1C352 5654-TC4011BP TC4011BP 1701 5654-TD6104P TD6104P 1€702 5654-TC9147AP TC9147AP 1¢703 5654-TD6301AP TD6301AP EE
TRANSISTORS a7 5612-834(GR) 2SB834(GR) Q72, 151, 152, 153, 155, 5613-2603(F) 28C2603(F) or 2SC2603(E) 157, 159, 205, 252, 307,
308, 309, 310, 352, 355, 357, 359, 704, 705, 706, 708, 709, 710, 711
Q73 5611-965(0) 2SA965(O) or 2SA965(Y) Q74, 75, 76, 154, 156, 158, 5611-1115(F) 2SA1115(F) or 2SA1115(E) 303, 304, 305, 306, 351,
353, 354, 356, 358, 360, |
12
707,712 : 201, 202, 203, 204 5613-2058(N) 28C2058(N) or 2C2058(P) 0251 5616-2SK241(Y) F.E.T., 28K241(Y) or 25K241(GR1) 0301, 302 5616-2SK381(D) F.£.T., 2SK381(D) , 0311, 312 5615-28J103(G) F.E.T., 2J103(G) . 0361, 362 5613-2878(B) 28C2878(B) | 0702 5616-2SK117(Y) F.E.T., 2SK117(Y) 0703 5613-2320L(F) 28C2320L(F) or 25C2320L(G) (
DIODES : | AD71 5685-1F Bridge Silicon, SIRBA10
D72, 151, 152, 153,201, 5631-1S2473 182473 202, 351, 352, 361, 362, 702, 703, 704, 705, 706, 722, 723
73, 74 5635-HZ7B2L Zener, HZ7B2L D75 5635-HZ27-3L Zener, HZ27-3L D251, 252 5633-18V102 18V102 D354/355/356/357/358/ 5623-LS007S LED Display, Signal Strength, Tuned, Stereo 359/360
D707 5635-RDSRGEB2 Zener, RDS.6EB2 D708 5635-RD10EB1 Zener, RD10EB1 0709 5635-RD8R2EB1 Zener, RD8.2EB1 |
COILS L101 5995-704027 f I L102, 201, 702 5995-22269 L251 5933-70128 I L252 5923-70133
; TRANSFORMERS \ AT71 5584-701345 : 7201 5574-7024 {
t t
Ref. No. Part No. Description
7251 5552-70113 7252 5932-70123
MISCELLANEOUS 6114-7130 FM Tuner Assembly 5722-10 Station Display, FIP7B85
x701 5691-00720019 Crystal Osc. CF201, 202, 203 5671-71194 Ceramic Filter, SFE10.7ML CF261 5671-7139G Ceramic Filter, SFP450G CF252 8671-7137C Ceramic Filter TEI 4214-144 External Antenna Terminals P301 4443.070185 Connector, 7 Pos. P302 4443-04714 Connector, 4 Pos. P303 4443-037114 Connector, 3 Pos. P351 4443-167114 Connector, 16 Pos. P352 4443.030185 Connector, 3 Pos. P3563 4443-00185 Connector, 5 Pos.
R621, 622 R627, 628 R645, 646
R647, 648 A\R657, 658
R661, 662
601, 602 C603, 604
C605, 606 C607, 608
C609, 610 C617, 618, 619, 620,
C621, 622, 623, 624
A\C625, 626 C627, 628 C805
AC809 C810 C907, 908
0601, 602, 603, 604, 611, 612
0605, 606, 607, 608, 803, 805, 910
0609, 610, 613, 614 0615, 616 0617, 618 0619, 620 0621, 622 0623 0624 0801, 802, 804, 806, 813, 814, 815, 909
Q807, 808 0811, 812
D601, 602, 803, 804, 805, 806, 807
D603, 604 D605, 606 D808, 901, 902
RESISTORS 5174-Z634038 5174-102381 5174-2549338
5174-2412238 5102-2704715
5174-2169338
CAPACITORS 5345-476B0951 5359-1215851
5359-1015851 5345-477B0952
5345-226C041
5359-2025851 5345-226D0226
5345-477D041 5345-107D041
5345-105F0952 5345-338D0962 5345-106C041 5345-107C041
TRANSISTORS 5613-2240(BL)
5613-2603(E)
5611-970(BL) 5612-646(C)
5614-666(C) 5614-667(C) §612-647(C) 5614-669(C)
5612-649(C) 5611-1115(E)
5612-1034 5616-2SK364(V)
DIODES 5631-1S2473
5641-MV103 5635-HZ24-1L
5635-RD3ROEB1
6340, +1%, 1/4W, Metal 1kQ, 1%, 1/4W, Metal 549kQ, +1%, 1/4W, Metal
41.2kQ, +1%, 1/4W, Metal 2722, +2%, 1/4W, Fuse 169kQ, +1%, 1/4W, Metal
47uF, +20%, 10V, Electrolytic 120pF, #5%, 100V, Polypropylene 100pF, +5%, 100V, Polypropylene 470uF , +20%, 10V, Electrolytic 22uF, +20%, 16V, Electrolytic 2000pF, +5%, 100V, Polypropylene 22uF,, #20%, 25V, Electrolytic 470uF,, +20%, 25V, Electrolytic 100uF, +20%, 25V, Electrolytic 1yF, $20%, 50V, Electrolytic 3300uF, +20%, 25V, Electrolytic 10uF,, 20%, 16V, Electrolytic 100uF, +20%, 16V, Electrolytic
2SC2240(BL)
2SC2603(E) or 2SC2603(F)
2SA970(BL) 2SB646(C) 2SD666(C) 2SD667(C) 2SB647(C) 2SD669(C) (w/Insulator) 2SB649(C) (w/Insulator) 2SA1115(E) or 2SA1115(F)
2SB1034
F.E.T., 25K364(V) or 2SK364(BL)
182473
Varistor, MV103 Zener, HZ24-1L
Zener, RD3.0EB1
13
B hk690i
14
Ref. No. Part No. Description
MISCELLANEOUS
801/802 4331-40207215 Relay, DC J1/2/3/4/5/6, 4486-9 6-Pin Jack, Phono, Aux/DAD, Tape 1, Tape 2 7/8/9/10/11/12
P6O1, 602 4443.040185 Connector, 4 Pos. P603 4443-030185 Connector, 3 Pos.
P604 4443-050185 Connector, 5 Pos. P605, 801 4443-070185 Connector, 7 Pos.
PCB4MCAMP.P.C.BOARD = RESISTORS
R917, 918, 919, 920
C903, 904, 905, 906
Q901, 902, 907, 908 Q903, 904, 905, 906
D903, 904
P802
AR19, 20
VR501/502 VR505/506 VR507/508
C17, 18 C21, 22 C509, 510 511, 512 513, 514 515, 516, 517, 518 C519, 520 C521, 622
05, 517, 518 06, 515, 516 0501, 502, 503, 504 0505, 506, 507, 508, 511, 512
0509, 510, 513, 514 0519, 520
D9, 10 D501, 502, 503, 504
$W501/502/503/504/505/ 506/507
P501
5174-561381
CAPACITORS 5345-106F0226
TRANSISTORS
5611-1190(E) 5613-2855(D)
DIODES 5635-HZ15-1L.
MISCELLANEOUS 4443-09418
| PCBS TONE CONTROL P.c, BOARD RESISTORS
5102-1214715
CONTROLS 5113-50385122 5113-50371148 5113-10472148
CAPACITORS
5345-107D041 5345-337D041 5345-685D0951 5353-010934 5345-226D0951 5353-680534 5345-476C0951 5359-1015851
TRANSISTORS
5614-667(C) 5612-647(C)
5613-2320L(F) 5613-2603(E)
5611-1115(E)
5616-2SK364(V)
DIODES
5636-HZ24-1L 5631-1S2473
MISCELLANEOUS 4431-0728724
4443-030185
5602, +1%, 1/4W, Metal
10uF, 20%, 50V, Electrolytic
2SA1190(E) 28C2855(D)
Zener, HZ15-1L
Connector, 9 Pos.
1202, +2%, 1/4W, Fuse
50kQ MN, Balance (w/Hexagon Nut) 50kOC, Treble (w/Hexagon Nut) 100kQC, Bass (w/Hexagon Nut)
100uF, +20%, 25V, Electrolytic 330uF, $20%, 25V, Electrolytic 6.8uF,, #20%, 25V, Electrolytic 1pF, £0.5pF, S00V, Mica 22uF, #20%, 25V, Electrolytic 68pF, +5%, 500V, Mica 47uF, £20%, 16V, Electrolytic 100pF, 5%, 100V, Polypropylene
2SD667(C) 2SB647(C) 28C2320L(F) 2SC2603(E) or 25C2603(F)
2SA1115(E) or 25A1115(F) F.E.T., 2SK364(V) or 2SK364(BL)
Zener, HZ24-1L
182473
Push Switch, Tape Monitor, Function
Connector, 3 Pos.
oy
Ref. No. Part No. Description
DIODES
D711, 712, 713, 714, 715, 5637-GL5NG6 L.E.D., GL5NG6, Green, Auto, Manual, Memory, FM/AM 716, 717, 718, 719, 720, Preset Memory 721
D724, 725 5631-1S2473 182473
MISCELLANEOUS
$w701, 702 4431-A020145 Push Switch, Tuning SW703/704/705 4431-03037 155 Push Switch, Auto, Manual, Memory $W706/707/708/709, 4431-04047165. Push Switch, FM/AM Preset Memory 710/711/712/713
J351 4163-70896 Connector with Lead Wire, 16 Pos,
CAPACITORS C503, 504 5359-1815851 180pF,, #5%, 100V, Polypropylene 801, 802 5345-105F0952 1uF,, 420%, 5OV, Electrolytic
DIODES 0801, 802 5631-182473 182473
MISCELLANEOUS SW508/509/510 4431-03127353 Push Switch, Tape Copy, Subsonic Filter, Loudness $W511/512/513/514 4431-04127167 Push Switch, MC, Mono Mode, High Blend, Muting
SW515/516/517 ush Switch, Bass Turnover, Tone Defeat, Treble Turnover
VR503/504 ontrol, 100kK2B, Volume (w/Hexagon Nut)
: B 7 PCB-10 TAPE MONITOR & FUNCTION INDICATORS P.C. BOARD D21, 22 5637-GL5PR6 L.E.D., GL5PR6, Red, Tape Monitor D25, 26, 27, 28 5637-GL5NG6 L.E.D., GL5NG6, Green, Function
PC.BOARD ush Switch, Speakers 1/2
Connector, 3 Pos, $w401/402 P451
TE2 Terminal, Speaker System 1/2
_ PCB-13 POWER SWITCH P.C. BOARD. RESISTORS
AR5O 5134-105J25P IMQ, +5%, 1/4W, Carbon ARS51, 53 5135-155J50P 1,5MQ, +5%, 1/2W, Carbon AR52 5134-334J25P 330k, +5%, 1/4W, Carbon
CAPACITORS ACI 5352-1030959 0.01uF, +20%, AC125V, Metalized Polyester AC5O 5345-105F041 IuF, +20%, 50V, Electrolytic
TRANSISTOR AQ 5613-2603(E) 2SC2603(E) or 2SC2603(F)
DIODES AD7,8 5631-182473 182473
15
16
Ref. No. Part No, Description
MISCELLANEOUS
ASW1 4431-A01716 Push Switch, Power AFI 5732-632029 Fuse, 6.3A, 125V AF2 5732-202031 Fuse, 2A, 125V
4472-7113 Fuse Holder, F1 (x 2) 4472-7122 Fuse Holder, F2 (x 2)
Jack, Headphones
LP1,2 5731-1807163 Lamp, 18V 95mA
ELECTOR Slide Switch, AM 9 kHz/10 kHz, FM 50 kHz/100 kHz © SW714, 715 4421.012413
SAFETY-REQUIREMENTS COMPONENTS IN ACCORDANCE WITH PRESENT SAFETY REGULATIONS, THESE COMPONENTS MUST ONLY BE REPLACED BY ORIGINAL PARTS.
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- - Fee.
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ret E BW504 SW505 SW506 SW507 SwWSO8 SW509 SWS5IO SWS5!| SWS5I2 SW5I3 SW5I4 tapel tape2 phono aux/DAD am ono aux/DAD am fm tape subsonic loudness me mono high muting i TREBLE BALANCE copy filter mode blend TAPE MONITOR FUNCTION
Une TION 1102 mm = Of em ON em One Of om mmoff sm off
iF) o @ WIRE COLOR ABBREVIATIONS 13) = sat [From PCB-1]
RED: Red GRN: Green
BLK. glock VEL Yellow GRY: Gray BRN: Brown BLU: Blue
|
14
8
WIRING DIAGRAM
sol AC OUTLET
To PCB-1] GY =—<~
To PCB-!] Q—--
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L253 AM LOOP ANT.
ADJ.
TRACKING ADJ.
DISCRIMINATOR ADy. TUNED IND ADJ. ][ SIGNAL IND ADU. i STEREO IND. ADJ
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[iF ADJ. SEPARATION ADJ.
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Sw7I5 SW7I4
FM AM
50KHz/1OOKHz 9KHZ/IOKHz LEFT
SIGNAL STRENGTH
Pe qt pa
a, Ji01 a HEADPHONES
y2 = a BE n
To @ BLK
TE2
SPEAKER SYSTEM 2
LEFT GND GND RIGHT
SPEAKER SYSTEM!
Sw40! Sw402
| 2
——-speakers——
PIN CONNECTION DIAGRAM OF TRANSISTORS, DIODES AND ICs.
282603 MV12YM 28A1115
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From PCB-i
SEPARATION ADJ.
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ADJ.(Rch)
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4551-8083
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PIN CONNECTION DIAGRAM OF TRANSISTORS, DIODES AND ICs.
28C2603 28A1115,
CE
MV12YM
2SK364 28K381 28K117
D
Gs
28C2240 ¥sv102,
2SB646A, 2SD666A 2SD667A 2SB647A 2SA965 288646 280866 28D667 “Cy Cathode
2SA1114 28C2591 SD zx
GLSNG6 GLSPRE
Cathode
BA1330
TC4049BP HA11225
TC4066BP TC4011BP
18
10
12
13
14
bass tone’ turnover defea
400Hz
OOHZ =
(2) [From PCB-I
From PCB-1
BASS TREBLE BALANCE
@ From PCB-!
ae ee | ii a Ered ieee
5wW504 SW505 SW506 SW507 Sw508 SW509 SW5IO
ono aux/DAD am fm tape subsonic loudness copy _ filter
= FUNCTION———— 1102 om =O um (ON ee
10 SWS5II| SW5I2 SW5I3 SW5I4
SS mc mono high muting mode _ blend
tape! tape2
TAPE MONITOR
. On sm Of mm smOff om off
From PCB-13
phono aux/DAD am
FUNCTION
TC4049BP, HAI1226
TC4066BP TC4011BP
LA1245
AN6875
TD6104P
‘TC9147AP
182471 HZ24-1L TD6301 AP
WIRE COLOR ABBREVIATIONS
RED: WHT: BLK: GRY BLU:
Red White Black Gray Blue
GRN: ORG: YEL: BRN:
Green . Orange Yellow Brown