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SERVICE MANUAL MT1194 Design and specifications are subject to change without notice. COLOR TELEVISION RECEIVER ORIGINAL MFR'S VERSION A

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Page 1: MEMOREX mt1194

SERVICE MANUAL

MT1194

Design and specifications are subject to change without notice.

COLOR TELEVISION RECEIVER

ORIGINALMFR'S VERSION A

Page 2: MEMOREX mt1194

6. AVOID AN X-RAY1. KEEP THE NOTICES

5. TAKE CARE TO DEAL WITH THECATHODE-RAY TUBE

In the condition that an explosion-proof cathode-ray tube is set in this equipment, safety issecured against implosion. However, whenremoving it or serving from backward, it isdangerous to give a shock. Take enough care todeal with it.

Safety is secured against an X-ray by consider-ing about the cathode-ray tube and the highvoltage peripheral circuit, etc.Therefore, when repairing the high voltage pe-ripheral circuit, use the designated parts andmake sure not modify the circuit.Repairing except indicates causes rising of highvoltage, and it emits an X-ray from the cathode-ray tube.

Please include the following informations when you order parts. (Particularly the VERSION LETTER.)1. MODEL NUMBER and VERSION LETTER

The MODEL NUMBER can be found on the back of each product and the VERSION LETTER can be found at the end of the SERIAL NUMBER.2. PART NO. and DESCRIPTION

You can find it in your SERVICE MANUAL.

HOW TO ORDER PARTS

SERVICING NOTICES ON CHECKING

As for the places which need special attentions,they are indicated with the labels or seals on thecabinet, chassis and parts. Make sure to keep theindications and notices in the operation manual.

2. AVOID AN ELECTRIC SHOCKThere is a high voltage part inside. Avoid anelectric shock while the electric current isflowing.

3. USE THE DESIGNATED PARTSThe parts in this equipment have the specificcharacters of incombustibility and withstandvoltage for safety. Therefore, the part which isreplaced should be used the part which hasthe same character.Especially as to the important parts for safetywhich is indicated in the circuit diagram or thetable of parts as a mark, the designatedparts must be used.

PUT PARTS AND WIRES IN THEORIGINAL POSITION AFTERASSEMBLING OR WIRING

4.

There are parts which use the insulationmaterial such as a tube or tape for safety, orwhich are assembled in the condition thatthese do not contact with the printed board.The inside wiring is designed not to get closerto the pyrogenic parts and high voltage parts.Therefore, put these parts in the originalpositions.

7. PERFORM A SAFETY CHECK AFTERSERVICING

Confirm that the screws, parts and wiring whichwere removed in order to service are put in theoriginal positions, or whether there are theportions which are deteriorated around theserviced places serviced or not. Check theinsulation between the antenna terminal orexternal metal and the AC cord plug blades.And be sure the safety of that.

(INSULATION CHECK PROCEDURE)

1.2.

3.

4.

Unplug the plug from the AC outlet.Remove the antenna terminal on TV and turnon the TV.Insulation resistance between the cord plugterminals and the eternal exposure metal[Note 2] should be more than 1M ohm byusing the 500V insulation resistance meter[Note 1] .If the insulation resistance is less than 1Mohm, the inspection repair should berequired.

[Note 1]

If you have not the 500V insulationresistance meter, use a Tester.

[Note 2]External exposure metal: Antenna terminal

A1-1

Inferior silicon grease can damage IC's and transistors.When replacing an IC's or transistors, use only specified silicon grease (YG6260M).Remove all old silicon before applying new silicon.

IMPORTANT

Page 3: MEMOREX mt1194

A1-1

A1-1

A1-1

A2-1

A3-1~A3-4

B1-1

B2-1, B2-2

C-1

C-1

C-2

D-1~D-4

E-1, E-2

F-1~F-4

G-1, G-2

G-3, G-4

G-5, G-6

G-7, G-8

H-1, H-2

I-1

J1-1

J2-1, J2-2

CONTENTS

A2-1

SERVICING NOTICES ON CHECKING ..........................................................................................................

HOW TO ORDER PARTS ...............................................................................................................................

IMPORTANT ....................................................................................................................................................

CONTENTS .....................................................................................................................................................

GENERAL SPECIFICATIONS ........................................................................................................................

DISASSEMBLY INSTRUCTIONS

1. REMOVAL OF ANODE CAP .................................................................................................................

2. REMOVAL AND INSTALLATION OF FLAT PACKAGE IC ...................................................................

SERVICE MODE LIST .....................................................................................................................................

CONFIRMATION OF HOURS USED ..............................................................................................................

WHEN REPLACING EEPROM (MEMORY) IC ...............................................................................................

ELECTRICAL ADJUSTMENTS .......................................................................................................................

BLOCK DIAGRAM ...........................................................................................................................................

PRINTED CIRCUIT BOARDS

MAIN/CRT ....................................................................................................................................................

SCHEMATIC DIAGRAMS

MICON/CHROMA/TUNER ...........................................................................................................................

TV POWER ..................................................................................................................................................

DEFLECTION/CRT ......................................................................................................................................

SOUND/AV ..................................................................................................................................................

WAVEFORMS ..................................................................................................................................................

MECHANICAL EXPLODED VIEW ...................................................................................................................

MECHANICAL REPLACEMENT PARTS LIST ...............................................................................................

ELECTRICAL REPLACEMENT PARTS LIST .................................................................................................

Page 4: MEMOREX mt1194

GENERAL SPECIFICATIONS

G-1 T V CRT CRT Size / Visual Size 19 inch / 480.0mmVSystem CRT Type Normal

Deflection 90 degreeMagnetic Field BV/BH +0.45G/0.18G

Color System NTSCSpeaker 1Speaker

Position BottomSize 3 InchImpedance 8 ohm

Sound Output MAX 1.5 W10%(Typical) 1.0 W

NTSC3.58+4.43 /PAL60Hz NoG-2 Tuning Broadcasting System US System M

System Tuner and System 1Tuner Receive CH Destination USA(W/ CATV)

Tuning System F-SynthInput Impedance VHF/UHF 75 ohm

2 - 69, 4A, A-5 - A-1, CH Coverage A - I, J - W, W+1 - W+84

Intermediate Picture(FP) 45.75MHzFrequency Sound(FS) 41.25MHz

FP-FS 4.50MHzPreset CH NoStereo/Dual TV Sound NoTuner Sound Muting Yes

G-3 Power Power Source AC 120V AC 60HzDC

Power Consumption at AC 73 W at AC 120 V 60 Hz

Stand by (at AC) 5 W at AC 120 V 60 HzPer Year -- kWh/Year

Protector Power Fuse YesSafety Circuit YesIC Protector(Micro Fuse) No

G-4 Regulation Safety UL Radiation FCC X-Radiation DHHS

G-5 Temperature Operation +5oC ~ +40oCStorage -20oC ~ +60oC

G-6 Operating Humidity Less than 80% RHG-7 On Screen Menu Yes

Display Menu Type CharacterPicture Yes

Contrast YesBrightness YesColor YesTint YesSharpness Yes

Audio NoBass NoTreble NoBalance NoBBE On/Off NoStable Sound On/Off No

CH Set Up YesTV/CATV YesAuto CH Memory YesAdd/ Delete Yes

Language YesV-chip Yes

CH Label NoFavorite CH NoColor Stream DVD/DTV No

Control Level YesVolume YesBrightness YesContrast YesColor YesTint YesSharpness YesTuning NoBass NoTreble NoBalance NoBack Light No

Stereo,Audio Output,SAP NoVideo Yes

A3-1

Page 5: MEMOREX mt1194

GENERAL SPECIFICATIONS

Color Stream NoChannel(TV/Cable) YesCH Label NoSleep Timer YesSound Mute YesV-chip Rating Yes

G-8 OSD Language English French Spanish

G-9 Clock and Sleep Timer Max Time 120 Min Timer Step 10 Min

On/Off Timer Program(On Timer / Off Timer) NoWake Up Timer NoTimer Back-up (at Power Off Mode) more than -- Min Sec

G-10 Remote Unit RC-DWControl Glow in Dark Remocon No

Format NEC Custom Code 86-05 hPower Source Voltage(D.C) 3V

UM size x pcs UM-4 x 2 pcs Total Keys 27 KeysKeys Power Yes

1 Yes2 Yes3 Yes4 Yes5 Yes6 Yes7 Yes8 Yes9 Yes0 Yes100 NoCH Up YesCH Down YesVolume Up YesVolume Down YesTV/Caption/Text YesCH1/CH2 YesTV/Video(TV/AV) YesCH RTN/CH ENT(Quick View) YesSleep YesRE Call(Call) YesReset YesMenu YesEnter YesMute YesExit NoMTS(Audio Select) NoSet + YesSet - Yes

Multi Brand Keys CH Up(VCR) NoCH Down(VCR) NoPause/Still NoTV/VCR(VCR) NoCode NoFF NoRew NoRec NoPlay NoStop NoTV NoVCR NoCable No

G-11 Features Auto Degauss YesAuto Shut Off YesCanal+ NoCATV YesAnti-theft NoRental NoMemory(Last CH) YesMemory(Last Volume) YesV-Chip Yes

Type USA,ORION TypeBBE NoAuto Search NoCH Allocation NoSAP No

A3-2

Page 6: MEMOREX mt1194

GENERAL SPECIFICATIONS

Channel Lock NoJust Clock Function NoGame Position NoCH Label NoVM Circuit NoFull OSD NoPremiere NoComb Filter No

LinesAuto CH Memory YesHotel Lock NoClosed Caption YesStable Sound NoEnergy Star NoPower On Memory NoFavorite CH No

G-12 Accessories Owner's Manual Language English / Spanishw/Guarantee Card Yes

Remote Control Unit YesRod Antenna No

PolesTerminal

Loop Antenna NoTerminal

U/V Mixer NoDC Car Cord (Center+) NoGuarantee Card NoWarning Sheet NoCircuit Diagram NoAntenna Change Plug NoService Facility List NoImportant Safeguard NoDew/AHC Caution Sheet NoAC Plug Adapter NoQuick Set-up Sheet NoBattery No

UM size x pcsOEM Brand No

AC Cord NoAV Cord (2Pin-1Pin) NoRegistration Card NoPTB Sheet No300 ohm to 75 ohm Antenna Adapter No

G-13 Interface Switch Front Power YesSystem Select No Main Power SW No Sub Power No Channel Up/Reset YesChannel Down/Enter YesVolume Up/Set Up YesVolume Down/Set Down YesMENU=Volume Up+Volume Down Yes

Rear AC/DC No TV/CATV Selector No Degauss No Main Power SW No

Indicator Power NoStand-by NoOn Timer No

Terminals Front Video Input RCA Audio Input RCA x 1 Other Terminal No

Rear Video Input(Rear1) No Video Input(Rear2) No Audio Input(Rear1) No Audio Input(Rear2) No Video Output No Audio Output No Euro Scart No Color Stream No Diversity NoExt Speaker NoDC Jack 12V(Center +) NoVHF/UHF Antenna Input F TypeAC Outlet No

G-14 Set Size Approx. W x D x H (mm) 488 x 465 x 416 G-15 Weight Net (Approx.) 17.5kg ( 38.6 lbs)

A3-3

Page 7: MEMOREX mt1194

GENERAL SPECIFICATIONS

Gross (Approx.) 20.0kg ( 44.1lbs)G-16 Carton Master Carton No

Content ---- SetsMaterial -- /--Dimensions W x D x H(mm) -- x -- x -- Description of Origin No

Gift Box YesMaterial Double/Brown Dimensions W x D x H(mm) 546 x 526 x 472 Design As per Buyer'sDescription of Origin Yes

Drop Test Natural Dropping At 1 Corner / 3 Edges / 6Surfaces

Height (cm) 46 Container Stuffing 436 Sets/40' container

G-17 Cabinet Material Cabinet Cabinet Front PS 94V0 DECABROM Cabinet Rear PS 94V0 DECABROM

PCB Non-Halogen Demand NoEyelet Demand No

G-18 Environment Pb Free Lead-free Solder NoOther No

Cd Free No

A3-4

Page 8: MEMOREX mt1194

1. REMOVAL OF ANODE CAPRead the following NOTED items before starting work.

After turning the power off there might still be a potentialvoltage that is very dangerous. When removing theAnode Cap, make sure to discharge the Anode Cap'spotential voltage.Do not use pliers to loosen or tighten the Anode Capterminal, this may cause the spring to be damaged.

REMOVAL

1. Follow the steps as follows to discharge the Anode Cap.(Refer to Fig. 1-1.)Connect one end of an Alligator Clip to the metal part ofa flat-blade screwdriver and the other end to ground.While holding the plastic part of the insulated screwdriver,touch the support of the Anode with the tip of thescrewdriver.A cracking noise will be heard as the voltage is discharged.

Flip up the sides of the Rubber Cap in the direction of thearrow and remove one side of the support.(Refer to Fig. 1-2.)

2.

GND on the CRT

Screwdriver

Alligator Clip

SupportCRT

GND on the CRT

Rubber Cap

CRT Support

Fig. 1-2

3. After one side is removed, pull in the opposite direction toremove the other.

NOTE

Take care not to damage the Rubber Cap.

INSTALLATION

1. Clean the spot where the cap was located with a smallamount of alcohol. (Refer to Fig. 1-3.)

Location of Anode Cap

NOTE

Confirm that there is no dirt, dust, etc. at the spot wherethe cap was located.

2.

3.

Arrange the wire of the Anode Cap and make sure thewire is not twisted.Turn over the Rubber Cap. (Refer to Fig. 1-4.)

4. Insert one end of the Anode Support into the anode button,then the other as shown in Fig. 1-5 .

5.6.

Confirm that the Support is securely connected.Put on the Rubber Cap without moving any parts.

CRT Support

DISASSEMBLY INSTRUCTIONS

Fig. 1-3

Fig. 1-4

Fig. 1-5

*

*

Fig. 1-1

B1-1

Page 9: MEMOREX mt1194

B2-1

Masking Tape(Cotton Tape)

DISASSEMBLY INSTRUCTIONS

2.

REMOVAL

IC

Put the Masking Tape (cotton tape) around the FlatPackage IC to protect other parts from any damage.(Refer to Fig. 2-1.)

1.

Fig. 2-1

NOTE

REMOVAL AND INSTALLATION OFFLAT PACKAGE IC

Some ICs on the PCB are affixed with glue, so becareful not to break or damage the foil of each ICleads or solder lands under the IC when removing it.

NOTE

Masking is carried out on all the parts located within10 mm distance from IC leads.

Blower type ICdesoldering machine

IC

Heat the IC leads using a blower type IC desolderingmachine. (Refer to Fig. 2-2.)

2.

Fig. 2-2

NOTE

Do not add the rotating and the back and forthdirections force on the IC, until IC can move back andforth easily after desoldering the IC leads completely.

When IC starts moving back and forth easily afterdesoldering completely, pickup the corner of the IC usinga tweezers and remove the IC by moving with the ICdesoldering machine. (Refer to Fig. 2-3.)

3.

Blower type ICdesolderingmachine

IC

Fig. 2-3

Tweezers

Peel off the Masking Tape.4.

Absorb the solder left on the pattern using the BraidedShield Wire. (Refer to Fig. 2-4.)

5.

NOTE

Do not move the Braided Shield Wire in the verticaldirection towards the IC pattern.

Braided Shield Wire

Soldering Iron

Fig. 2-4IC pattern

Page 10: MEMOREX mt1194

B2-2

DISASSEMBLY INSTRUCTIONS

Supply solderingfrom upper positionto lower position

IC

Supply the solder from the upper position of IC leadssliding to the lower position of the IC leads. (Refer to Fig. 2-6.)

2.

Fig. 2-6

Soldering IronSolder

IC

Absorb the solder left on the lead using the BraidedShield Wire. (Refer to Fig. 2-7.)

3.

Fig. 2-7

Soldering Iron

Braided Shield Wire

NOTE

Do not absorb the solder to excess.

IC

When bridge-soldering between terminals and/or thesoldering amount are not enough, resolder using a Thin-tip Soldering Iron. (Refer to Fig. 2-8.)

4.

Fig. 2-8

Thin-tip Soldering Iron

NOTE

When the IC leads are bent during soldering and/orrepairing, do not repair the bending of leads. If thebending of leads are repaired, the pattern may bedamaged. So, be always sure to replace the IC in thiscase.

Finally, confirm the soldering status on four sides of theIC using a magnifying glass.Confirm that no abnormality is found on the solderingposition and installation position of the parts around theIC. If some abnormality is found, correct by resoldering.

5.Solder temporarily

Soldering Iron

INSTALLATION

Take care of the polarity of new IC and then install thenew IC fitting on the printed circuit pattern. Then soldereach lead on the diagonal positions of IC temporarily.(Refer to Fig. 2-5.)

1.

Fig. 2-5

Solder temporarily

Page 11: MEMOREX mt1194

C-1

SERVICE MODE LIST

This unit provided with the following SERVICE MODES so you can repair, examine and adjust easily.To enter the Service Mode, press both set key and remote control key for more than 1 second.

Set Key Remocon Key Operations

VOL. (-) MIN 0 Releasing of V-CHIP PASSWORD.

VOL. (-) MIN 1Initialization of the factory.NOTE: Do not use this for the normal servicing. If you set a factory initialization, the memories are reser such as the clock setting, the cheannel setting, the POWER ON total hours, and PLAY/REC total hours.

VOL. (-) MIN 6

POWER ON total hours is displayed on the screen.Refer to the "CONFIRMATION OF HOURS USED".

Can be checked of the INITIAL DATA of MEMORY IC.Refer to the "WHEN REPLACING EEPROM (MEMORY) IC".

VOL. (-) MIN 8 Writing of EEPROM initial data.NOTE: Do not use this for the normal servicing.

VOL. (-) MIN Display of the Adjustment MENU on the screen.Refer to the "ELECTRICAL ADJUSTMENT" (On-Screen Display Adjustment).

9

CONFIRMATION OF HOURS USED

POWER ON total hours can be checked on the screen. Total hours are displayed in 16 system of notation.

NOTE: If you set a factory initialization, the total hours is reset to "0".

1.2.

3.

Set the VOLUME to minimum.Press both VOL. DOWN button on the set and Channelbutton (6) on the remote control for more than 2 second.After the confirmation of using hours, turn off the power.

FIG. 1

Initial setting content of MEMORY IC.

POWER ON total hours. = (16 x 16 x 16 x thousands digit value) + (16 x 16 x hundreds digit value) + (16 x tens digit value) + (ones digit value)

ADDRESS DATA

INIT 00 50

CRT ON 0010

Page 12: MEMOREX mt1194

WHEN REPLACING EEPROM (MEMORY) IC

If a service repair is undertaken where it has been required to change the MEMORY IC, the following steps should be taken toensure correct data settings while making reference to TABLE 1.

Table 1

+9+2INI +0 +1 +3 +4 +5 +6 +7

00

+8 +A

07 B3 24 79 31 00 0050 04 EB 47

+B +C +D +E +F

05 10 D5 00 07

1.2.

Enter DATA SET mode by setting VOLUME to minimum.While holding down VOLUME button on front cabinet, press key 6 on remote control for more than 2 seconds.ADDRESS and DATA should appear as FIG 1.

3.

4.5.6.7.8.

9.10.11.

The unit will now have the correct DATA for the new MEMORY IC.

ADDRESS is now selected and should "blink". Using the VOL. +/- button on the remote, step through the ADDRESS untilrequired ADDRESS to be changed is reached.Press ENTER to select DATA. When DATA is selected, it will "blink".Again, step through the DATA using VOL. +/- button until required DATA value has been selected.Pressing ENTER will take you back to ADDRESS for further selection if necessary.Repeat steps 3 to 6 until all data has been checked.When satisfied correct DATA has been entered, turn POWER off (return to STANDBY MODE) to finish DATA input.

After the data input, set to the initializing of shipping.Turn POWER on.While holding down VOLUME button on front cabinet, press key 1 on remote control for more than 2 seconds.After the finishing of the initializing of shipping, the unit will turn off automatically.

Fig. 1

ADDRESS DATA

INIT 00 50CRT ON 0010

C-2

Page 13: MEMOREX mt1194

D-1

ELECTRICAL ADJUSTMENTS

1.

Read and perform these adjustments when repairing thecircuits or replacing electrical parts or PCB assemblies.

2. BASIC ADJUSTMENTSBEFORE MAKING ELECTRICALADJUSTMENTS 2-1: CUT OFF

1.

2.3.

4.

Adjust the unit to the following settings.R.DRIVE=10, B.DRIVE=10, R.BIAS=64, G.BIAS=64,B.BIAS=64, BRI.CENT=105, CONT.MAX=65.Place the set with Aging Test for more than 15 minutes.Activate the adjustment mode display of Fig. 1-1 andpress the channel button (01) on the remote control toselect "CUT OFF".Adjust the Screen Volume until a dim raster is obtained.

2-2: FOCUS

1.2.3.

Receive the monoscope pattern.Turn the Focus Volume fully counterclockwise once.Adjust the Focus Volume until picture is distinct.

2-3: WHITE BALANCE

NOTE: Adjust after performing CUT OFF adjustment.

Place the set with Aging Test for more than 10 minutes.Receive the white 100% signal from the PatternGenerator.Using the adjustment control, set the brightness andcontrast to normal position.Activate the adjustment mode display of Fig. 1-1 andpress the channel button (10) on the remote control toselect "R.BIAS".Using the VOL. UP/DOWN button on the remote control,adjust the R.BIAS.Press the CH. UP/DOWN button on the remote control toselect the "R.DRIVE", "B.DRIVE", "G.BIAS" or "B.BIAS".Using the VOL. UP/DOWN button on the remote control,adjust the R.DRIVE, B.DRIVE, G.BIAS or B.BIAS.Perform the above adjustments 6 and 7 until the whitecolor is looked like a white.

1.2.

3.

4.

5.

6.

7.

8.

2-4: SUB TINT/SUB COLOR

1.2.3.

4.

5.6.

7.

8.9.

Receive the color bar pattern.Connect the oscilloscope to TP023.Activate the adjustment mode display of Fig. 1-1 andpress the channel button (22) on the remote control toselect "TINT".Press the VOL. UP/DOWN button on the remote controluntil the section "A" becomes as straight line(Refer to Fig. 2-1)Connect the oscilloscope to TP022.Activate the adjustment mode display of Fig. 1-1 andpress the channel button (19) on the remote control toselect "COL.CENT".Press the VOL. UP/DOWN button on the remote controluntil the red color level is adjusted to 110 ±10% of thewhite level. (Refer to Fig. 2-2)Receive the color bar pattern. (Audio Video Input)Press the TV/AV button on the remote control to set tothe AV mode. Then perform the above adjustments 2~7

CAUTION

Use an isolation transformer when performing any serviceon this chassis.Before removing the anode cap, discharge electricitybecause it contains high voltage.When removing a PCB or related component, afterunfastening or changing a wire, be sure to put the wireback in its original position.When you exchange IC and Transistor for a heat sink,apply the silicon grease (YG6260M) on the contractsection of the heat sink, Before applying new silicongrease, remove all the old silicon grease. (Old greasemay cause damages to the IC and Transistor.)

1. Synchro Scope2. Digital Voltmeter3. Pattern Generator

Prepare the following measurement tools for electricaladjustments.

On-Screen Display Adjustment

In the condition of NO indication on the screen.Press the VOL. DOWN button on the set and theChannel button (9) on the remote control for more than1 second to appear the adjustment mode on the screenas shown in Fig. 1-1 .

1.

Fig. 1-1

Use the Channel UP/DOWN button or Channel button(0-9) on the remote control to select the options shownin Fig. 1-2 .Press the MENU button on the remote control to endthe adjustments.

2.

3.

TV

00 OSD H 28

FUNCTIONOSD HCUT OFFH.VCOH.PHASEV.SIZEV.SHIFTR.DRIVEB.DRIVER.BIASG.BIASB.BIASBRIGHT CENTBRIGHT MAXBRIGHT MIN

NO.0001040506070809101112131415

Fig. 1-2

FUNCTIONCONTRAST CENTCONTRAST MAXCONTRAST MINCOLOR CENTCOLOR MAXCOLOR MINTINTSHARPNESSFM LEVELLEVELSEPARATION 1SEPARATION 2TEST MONOTEST STEREO

NO.1617181920212223242526272829

Page 14: MEMOREX mt1194

D-2

ELECTRICAL ADJUSTMENTS

2-8: OSD HORIZONTAL

1.2.

Activate the adjustment mode display of Fig. 1-1 .Press the VOL. UP/DOWN button on the remotecontrol until the difference of A and B becomesminimum. (Refer to Fig. 2-3)

Fig. 2-3

Receive an 70dB monoscope pattern.Using the adjustment control, set the brightness andcontrast to normal position.Activate the adjustment mode display of Fig. 1-1 andpress the channel button (13) on the remote control toselect "BRI.CENT".Press the VOL. UP/DOWN button on the remote controluntil the white 10% is starting to be visible.Press the TV/AV button on the remote to set to theAV mode. Then perform the above adjustment 2~4.

1.2.

3.

4.

5.

2-9: SUB BRIGHTNESS

Fig. 2-1

Fig. 2-2

2-5: HORIZONTAL PHASE

1.2.

3.

4.

Receive the monoscope pattern.Using the adjustment control, set the brightness andcontrast to normal position.Activate the adjustment mode display of Fig. 1-1 andpress the channel button (05) on the remote control toselect "H.PHAS".Press the VOL. UP/DOWN button on the remotecontrol until the SHIFT quantity of the OVER SCAN onright and left becomes minimum.

2-6: VERTICAL SIZE

1.

2.

3.

4.

Receive the crosshatch signal from the PatternGenerator.Activate the adjustment mode display of Fig. 1-1 andpress the channel button (06) on the remote control toselect "V.SIZE".Press the VOL. UP/DOWN button on the remote controluntil the SHIFT quantity of the OVER SCAN on upsideand downside becomes 10 ± 2%.Receive a broadcast and check if the picture is normal.

NOTE: Adjust after performing adjustments in section 2-5

2-7: VERTICAL SHIFT

1.

2.

3.

Receive the crosshatch signal from the PatternGenerator.Activate the adjustment mode display of Fig. 1-1and press the channel button (07) on the remotecontrol to select "V.SFT".Press the VOL. UP/DOWN button on the remotecontrol until the horizontal line becomes fit to thenotch of the shadow mask.

NOTE: Adjust after performing adjustments in section 2-6

"A"

Red 110%

Receive an 70dB the color bar pattern.Activate the adjustment mode display of Fig. 1-1press the channel button (17) on the remote controlto select "CONT.MAX".Press the VOL. UP/DOWN button on the remote controluntil the contrast step No. becomes "60".Press the TV/AV button on the remote to set to theAV mode. Then perform the above adjustment 2, 3.

1.2.

3.

4.

2-10: SUB CONTRAST

BA

TV

00 OSD H 28

2-11: Confirmation of Fixed Value (Step No.)

Please check if the fixed values of the each adjustmentitems are set correctly referring below.

RF04150454515740045000000000000

NO.0414151618202123242526272829

FUNCTIONH VCOBRIGHT MAXBRIGHT MINCONT CENTCONT MINCOLOR MAXCOLOR MINSHARPNESSFE LEVELLEVELSEPARATION 1SEPARATION 2TEST MONOTEST STEREO

AV04

150454515740045000000000000

Page 15: MEMOREX mt1194

D-3

ELECTRICAL ADJUSTMENTS

3.

1.

2.

3.

1.

2.

3.

4.

5.

6.

7.

8.

3-2: PURITY

NOTE

Adjust after performing adjustments in section 3-1.

1.

2.

3.

4.5.

Receive the green raster pattern from color bargenerator.Adjust the pair of purity magnets to center thecolor on the screen.Adjust the pair of purity magnets so the color at theends are equally wide.Move the deflection yoke backward (to neck side)slowly, and stop it at the position when the wholescreen is green.Confirm red and blue colors.Adjust the slant of the deflection yoke while watching thescreen, then tighten the fixing screw.

DEFLECTION YOKEDEFLECTION YOKE SCREWMAGNET SCREW

PURITY MAGNETS6 POLE MAGNETS4 POLE MAGNETS

Fig. 3-1

PURITY AND CONVERGENCEADJUSTMENTS

NOTE

3-1: STATIC CONVERGENCE (ROUGH ADJUSTMENT)

Tighten the screw for the magnet. Refer to the adjustedCRT for the position. (Refer to Fig. 3-1)If the deflection yoke and magnet are in one body,untighten the screw for the body.Receive the green raster pattern from the color bargenerator.Slide the deflection yoke until it touches the funnelside of the CRT.Adjust center of screen to green, with red and blue on thesides, using the pair of purity magnets.Switch the color bar generator from the green rasterpattern to the crosshatch pattern.Combine red and blue of the 3 color crosshatch patternon the center of the screen by adjusting the pair of4 pole magnets.Combine red/blue (magenta) and green by adjusting thepair of 6 pole magnets.Adjust the crosshatch pattern to change to whiteby repeating steps 6 and 7.

Turn the unit on and let it warm up for at least 30minutes before performing the following adjustments.Place the CRT surface facing east or west to reduce theterrestrial magnetism.Turn ON the unit and demagnetize with a Degauss Coil.

3-3: STATIC CONVERGENCE

1.

2.

3.

3-4: DYNAMIC CONVERGENCE

Adjust after performing adjustments in section 3-3.

1.

2.

Adjust the differences around the screen by movingthe deflection yoke upward/downward and right/left.(Refer to Fig. 3-2-a)Insert three wedges between the deflection yokeandCRT funnel to fix the deflection yoke.(Refer to Fig. 3-2-b)

R G B

RGB

Fig. 3-2-a

WEDGE WEDGE

WEDGE

WEDGE POSITION

Fig. 3-2-b

R G B

RGB

Receive the crosshatch pattern from the color bargenerator.Combine red and blue of the 3 color crosshatch patternon the center of the screen by adjusting the pair of4 pole magnets.Combine red/blue (magenta) and green by adjusting thepair of 6 pole magnets.

UPWARD/DOWNWARD SLANT RIGHT/LEFT SLANT

Adjust after performing adjustments in section 3-2.

NOTE

NOTE

Page 16: MEMOREX mt1194

ELECTRICAL ADJUSTMENTS

4. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (WIRING CONNECTION)

CP803A

CP

802A

TU001

S501A

S501B

FB401

CD501AC

IC

CP401

CP802B

CP806

CD803

CRT PCB

MAIN PCB

CR

T

CD101A

CD101B

SPEAKER

CD

802

R807

R803

J801

TP023TP022

CP801

CR

TC

D801

CP803B

CRT

CP502

L503

D-4

Page 17: MEMOREX mt1194

OSD

BLOCK DIAGRAM

70

68

67

73

66 ATTRGB Proc.2OSD SWCONTRAST BRIGHTNESS

I/OIICTIMINT

PWMAD

MCUCLK

VCXO

RGB OUTPUT Stage DRIVE CUT OFF HV BLK

Ver.Proc.Ver SYNC SEPVer.COUNT DOWNV RAMP

2021

IC1001 AN7511

Q801

RED OUT

Q802

GREEN OUT

Q803

BLUE OUT

Q402

H. DRIVE

Q401

H. OUTPUT

2 6

SOUND AMPIC4 8

Q607

H-CTL

SPEAKERSP1001

52

51

50

34

45

46

9

HV

F

S

FB401

10

1

2

3

CRT

3 9 7

RGB

Heater

F 84

PUMP UP

AMP+

-

7 52 6

V-OUT ICIC401 LA78040N-E

VCC

RGB Proc.1RGB MATRIXCOLOR CONT

383726275758 16

Hor.Proc.SYNC SEPA/Hor. VCOHor.COUNT DOWNAFC-1/H COINCIDENTAFC-2 H PHASE

1

2

DY

31

42L501

AC IN

F501

Q507

FEED BACK

T502

4

8

13

FEED BACKSW

Q502

BUFFER

6

L503DEGAUSS COIL

65MEMORY ICIC199 S-24C02BFJ-TB

SDA SCL

VOL. DOWN

CH. DOWN

VOL. UP

CH. UP

X6013.579545MHz

TU001

10 1311 12 17

OS101

1

16

Q505MICON/CHROMA ICIC101 OEC7091B

Chroma Proc.ACC/C-BPFAPC/KILLERTINT/DEMO

P. FAIL

IC501PS2561AL1-1-V(W)

78

J703

2

J702

ROMRAM

IIC BUSDECODER

56

Q501

POWER AMP

D501~D504

RECTIFIER

TH

501

Video Proc.C-TRAP/Y DELAYSHARPNESSBLACK STRETCHY MUTE

V801

E-1 E-2

Page 18: MEMOREX mt1194

TCD460A

TMD604A

Q602

Q606

R605

D604

D603

W851

IC1001

D001

W053

W055

R621

D606

Q607

R617

R109

Q601Q603

W040

R615

R613

R614

R611

W051

W041

W060

CP

802A

J703 J702

R002

SW101 SW102 SW103 SW104

R505

R449

R448

W038

W039

C427

R410

D403

R424

C414

IC40

1

W027

C437

R408

D412

D509

D508

HS501

C508_1

TH501_1

C519

C446

W020

R504

TP401

R519

D512

FH501FH502 F501

S501B

S501A

R518

IC501

D511

R515

R513

D528

R512

D516

CP401

C403

R514

HS402

R520

R506

R503

Q502

Q501

R542

CP502

C521

D410

B504

B501

R517

R422

D513

D505

D506

D405

AF

C

HS401

CO

L

8V

AB

L

GN

D

25V

12V180V

HE

AT

ER

R538

C434

Q507

R417

C516

D514

R607W061

W052

W028 W

029

D522

R001

R445

R528

R1001

W026

W011

W043

W044

W045

R110

R113

R112

W057

W058

W017

R421

R446

W068

D406

R409

W010

T401

R620

Q402

C518

C418

C506_1

W073

W034

R603

W024

W023

W062

W007

W050

W009

TP

024

CP806

C819

R807_2

R803_2

CP802B

TP023

TP022 C801

W048

W046

W032

W030

R123

W016

R423

C502

C503

R806

R802

SW105

W069

R143

W816

R427

Q401

R501

W004

W049

W019

W847

W848

D515

W803

R447

C410

W025

C511

R130

R106

R105

R116

R119

W067

W001

R522

W042

D507

R502

D521

C509

C435

C406

W064

D404

D408

D411

W003

W008

W056

R601

R604

X601

R403

R508

R415

D501

D502

D503 D

504

CP801_2

OS101

CP803B

CP803A

L801

W801

CD101A

CD

101B

C443

C515

C624

D510

L501

D602

TU

001

W013

W014

R402

C402

W018

W066

W845

W006

C440

T502

CP

601

D517

R404

W015

L101

W070

L001

C442

W021

C526_1

FB401

C630_1

C632_1

C1005_1

R804_1

C417_1

C514_1

C628_1

C621_1

C617_1

C103_1

C601_1

C623_1

C123_1

C606_1

R629_1

C633_1

C610_1

W836

W831

W832

W819

W805

C118_1

C510_1

R511_1

R429

CD

501

C517

C505

R509

D409

R805_2

R407

R416

W807

W81

7

C422_1

R500

J801

R608

R616

Q803_1Q802_1 Q801_1

CD803A

CD803B

CD

802A

CD802B

PRINTED CIRCUIT BOARDSMAIN/CRT (INSERTED PARTS)

SOLDER SIDE

F-1 F-2

4A125VOR250V

CA

UT

ION

ATTENTION INFORMATIONPOURSERVICEDES PIECECRITIQUEVOIRAUVERSO. ,

SE

RV

ICE

FO

RIN

FO

RM

AT

ION

AB

OU

TC

RIT

ICA

LC

OM

PO

NE

NT

SS

EE

INS

IDE

BA

CK

CO

VE

R.

,

Page 19: MEMOREX mt1194

TCD460A

TMD604A

1

25

41

64

C10

04

R1003

R00

4

R610

C10

1

R61

8

C10

2

IC10

1

R702R703

R128

R12

6R101

R420

R41

9

C50

1

R12

5

R609

R11

5

R1005

R1004

R704

R12

7

R627

R10

7

R10

8

R129

R81

3

R80

9

R81

6

R81

4

R81

5R

811

R701

R40

5

R418

R00

3

R50

7

C63

9

C62

0C

1001

C60

7C

608

C10

09

C00

1

R60

2C

603

R10

3C

611

R10

4R

120

C60

2

C10

5

C10

7R

102

C10

4C

108

R60

6

C62

2

C60

5C

113

IC199

C00

4

C61

5

C61

6

R10

08

C62

9_1

C62

7_1

C60

4_1

C62

6_1

C00

7_1

C40

7_1

C60

9_1

C51

3_2

C80

8_2

C81

0_2

C80

9_2

C64

1

PRINTED CIRCUIT BOARDSMAIN/CRT (CHIP MOUNTED PARTS)

SOLDER SIDE

F-3 F-4

Page 20: MEMOREX mt1194

A B C D E F G H

A B C D E F G H

2

1

3

4

5

6

7

8

2

1

3

4

5

6

7

8

WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST

NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED

C607

1 F

C608

1 F

C616

1 F

C615

1 F

C609_1

0.01 B

C104

0.01

BC6

11

1F

C629

_10.

01B

C007

_1

0.02

2B

C627

_1

0.01

BC6

26_1

0.01

B

C624 1TF

C101

0.01 B

C620

0.01 B

C639

0.01

F

C004

0.02

2F

C113

560P

BC102

0.01 B

C105

470P

B

C107

220P

B

C603

22P

CH

C001

0.01 F

C622

1 F

C605

1F

C641

0.00

1B

C108

0.00

1B

C602

0.1

F

C604

_1

0.02

2B

C610_1

4716V YKC6

06_1

100

6.3V

YK

C103

_1

470

6.3V

YK

C630

_147

010

VYK

C632_1

47010V YK

C628

_1 150

VKA

C118_1

4706.3V YK

C123

_1

1050

VYK

C623_1

2.250V KA

C633

_1

1050

VYK

C601

_1

150

VKA

C617_1

10010V YK

C621_1

4716V YK

R112

2.2K 1/4W R113

2.2K 1/4W

R601

8.2K

1/4W

R103

1K

R102 1K

R609

120K

R611

10K

1/4W

R002

15K 1/2W

R610 12

K

R613

100

1/4W

R614

100

1/4W

R603

120 1/2W

R607

100 1/4W

R615

100

1/4W

R608

1K 1/4W

R616

1K1/

4W

R618

22K

R617

47K

1/4W

R620

1K1/

2W

R003

100

R004

100

R104

1M

R120

470

R127

1K

R107 100

R108 100

R106

4.7K

1/4W

R129

47K

R119

22K 1/4W

R621

220 1/4W

R109 10K 1/4W

R110 10K 1/4W

R605

220 1/2W

R116

2.2K 1/4WR115

22K

R123

10K 1/4W

R125

47K

R627

10K

R604

100 1/4W

R128

560 R126

2.7K

R101

560

R602

100

R606

22K

R001

15K 1/2W

R143

10 1/4W

R130

10K 1/4W

R105

4.7K

1/4W

OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICENOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME

DANS LA NOMENCLATURE DES PIECESN’UTILISER QUE CELLS DECRITESDANGEREUSES AN POINT DE VUE SECURITE

:LES PIECES REPAREES PAR UN ETANTATTENTION:SINCE THESE PARTS MARKED BYCAUTIONDESCRIBED IN PARTS LIST ONLYCRITICAL FOR SAFETY,USE ONES

ARE

W83

6

W81

6

W801

W80

5

IC19

9S-

24C0

2BFJ

-TB

MEM

ORY

IC

1 2 3 4

5678

TUNER VIDEO SIGNAL

D602

MTZ

J8.2

B

D604

MTZJ8.2B

D001MTZJ33B

DEFLECTION SIGNALB.SIGNALG.SIGNALR.SIGNAL

D606

1N40

02-P

AN

D603

1SS133

Q601KTC3203_Y

5V REG

Q606KTC3203_Y

8V REG

Q607KTC3198

H.CTL

Q602KTC3203_Y

5V REG

Q603KTC3203_Y

5V REG

R629_1

22 3W

L101

3.3u

H03

05

IC101OEC7091B

MICON/CHROMA IC

1 10 11 12 13 14 15 16 17 18 192 20 21 22 23 24

2526

2728

29

3

3031

3233

3435

3637

3839

4

40

414243444546474849

5

50515253545556575859

6

6061626364

6566

6768

69

7

7071

7273

7475

7677

7879

8

80

9

SW10

4EV

Q215

05R

VOL

DOW

N

SW10

3EV

Q215

05R

VOL

UP

SW10

2EV

Q215

05R

CH D

OWN

SW10

1EV

Q215

05R

CH U

P

SW10

5

EVQ2

1505

R

POW

ER_O

N

X601

100B

T3R5

37

3.57

9545

MHz

CP601173979-6

1

2

3

4

5

6

L001

3.3uH 0305

TU001ENG36A01GY

1

10

11

12

13

14

15

16

17

1819

2

20 21

3

4

5

6

7

8

9

GND

B+

Vout OS

101

KSM

-713

SY

123

P.CO

N+5V

P.CO

N+5V

H_OU

T

H_CT

L

ABCL

B.OU

T

CLAMP

H_CT

L

G.OU

T

R.OU

T

H_SY

NC

V_OUT

GND

V_FEEDBACKAT+5VABCL

H_OUTP.CON+5V

X-RAYSDA R.OUT

G.OUTSCL

B.OUT

H_SYNC

AFTUNREG+12V

KEY1 V_OUT

POWER_FAILKEY2 V_FEEDBACKUNREG+12VPOWER_ON

GND

+BREMOCON

AUDIO_OUT

AUDIO_MUTEAUDIO_MUTEVIDEO_IN2

AUDIO_IN2X-RAY

AUDIO_OUTP.CON+5VIIC_OFF

P.CON+5VTUNER+5VGND

POWER_FAIL AUDIO_IN2

VIDEO_IN2

TUNER+5V

AT+5V

TU_VIDEO

TU_AUDIO

SCL

AT+5

V

SDA

KEY1

KEY2

REM

OCON

POW

ER_O

N

AFTIIC_OFF

TU_AUDIO SDA

SCL

+B

TU_VIDEO

FROM/TO SOUND/AV

FROM TV POWER

G-2G-1

TMD604PCB010

NC

NC

NC

NC

NC

NC

NC

4.8

000 0

4.9 0 4.8

4.9

7.2

4.9

6 MCU VCC

7 TEST0

8 FILT

9 HLT

5 VSS

1 CNVSS

2 XIN

3 XOUT

4 TEST1

11 CVIN

10 VHOLD

12 RESET IN

13 MCU RESET OUT

14 Y SW OUT

15 V/C GND

16 3.58 XTAL

17 C-APC

18 MCU5.7V REG OUT

19 NC

20 CVBS IN3

21 AUDIO IN3

22 V/C VCC

23 MCU TEST

24 CVBS IN2

25 AUDIO IN2

26 CVBS IN1

27 AUDIO IN1

28 5.7V REG OUT

29 C(Y/C) IN

33 MONITOR OUT

32 FSC OUT

31 VREG VCC

30 Y(Y/C) IN

34 AUDIO ATT OUT

37 V RAMP F/B

38 V RAMP OUT

39 V RAMP CAP

40 8.7V REG OUT

Ver SYNC SEPVer.COUNT DOWNV RAMP

Ver.Proc.Hor.Proc.SYNC SEPA/Hor.VCOHor.COUNT DOWNAFC-1/H COINCIDENTAFC-2 H PHASE

PGB OUTPUT StageDRIVECUT-OFFHV BLK

IIC BUSDECODER

OSDROMRAM

CCD

CPU core

VCOXO

COLOR CONTRGB MATRIXRGB Proc.1

RGB Proc.2OSD SWCONTRASTBRIGHTNESS

MCU RESETPower Manage.

MCUCLK Y MUTE

BLACK STRETCH

Vldeo Proc.C-TRAP/YDELAYSHARPNESS

Chroma Proc.ACC/C-BPFAPC/KILLERTINT/DEMO

ATT

VCXO

LPF6bB AMP

MCU GND

IIC

TIM

AD

PWM

INT

I/O

CLK CONT

P-ON CONT

SDA/SCL

NC

NC

4.8

SCL

SDA

IIC_OFF

GND

NC

NC

35 AUDIO ATT FILTER

41 NC

42 HVCO F/B

43 AFC FILTER

44 DEF GND

45 FBP IN

46 H OUT

47 DEF VCC

48 NC

49 HI VCC

50 R OUT

51 G OUT

52 B OUT

53 ACL

54 NC

55 PROTECT

56 SDA

57 H_CTL

58 SCL

62 DEGAUSS_H

63 STANDBY_H

64 VOLUME

66 AFT

67 KEY1

68 KEY2

71 AV2

72 AV1

73 AUDIO_MUTE

77 SYNC

78 POWER FAIL

80 EXT_MUTE

76 ON_TIMER

60 NC

61 NC

75 IIC_OFF

65 NC

59 NC

70 REMOCON

69 POWER_ON

74 X-RAY

36

NC

NC

NC

4.8

2.4

4.9

4.9

4.9

4.8

0

4.9

4.9

2.8

4.8

0

0

4.8

0

4.9

NC

0

1.9

2.2

5.5

2.2

1.9

8.7

2.8

0.7

3.2

3.5

0

2.6

3.6

4.7

8.6

03.73.401.02.08.04.80 08.02.32.22.30.7

0 0 04.9 4.9 4.9 0 1.0 1.9 0.3 2.7 4.9 4.9 2.7 0 3.3 2.8 5.5 0 2.5 2.2 4.9 0

NC65 7

3

2

4

1

5.5

8.8

TEST POINT

FROM/TO DEFLECTION/CRT

6.0 5.0

5.6

NCNC

NC

NC

NC

NC

NC

NC

NC

NC

NC

NC

MICON/CHROMA/TUNER SCHEMATIC DIAGRAM(MAIN PCB)

79 X-RAY_TEST

NC

1.9

11.3

7.9

8.5

0 0 0 0 0 0 4.8 0 4.8

5.57.2

5.5

4.9

VSSE2E1E0

VCC

MOD

E

SCL

SDA

4.90

Page 21: MEMOREX mt1194

A B C D E F G H

A B C D E F G H

2

1

3

4

5

6

7

8

2

1

3

4

5

6

7

8

C515

1000

16V

YK

C521 100

160V

MHE

C519 10

0016

VYK

C516 10

50V

YK

CP502A1561WV2-2P

1

2

HS501763WSAA013

R518

5.6K

+-1%

R514

0.22 1W

CAUTION: DIGITAL TRANSISTOR

S501

BS5

01A

IS NON POLAR ONE.THE ALUMI ELECTROLYTIC CAPACITOR MARKED NPTHE RESISTOR MARKED F IS FUSE RESISTOR.NOTE:

R501

3.3 5W

L501SS11V-10062-CH

COIL,LINE FILTER

1 2

3 4

21

L5038R200031

DEGAUSS COIL

FH502EYF-52BCY

FH501EYF-52BCY

F5014A125V

4A125V

IC501PS2561AL1-1-V(W)

FEED BACK

123

4

B501

W5R

H3.5

X5X1

.0

B504

W5RH3.5X5X1.0

TH501_1

B59203-S1060-B14

4A 125V

4A 125V

TYPE 4A 125V (F501).D’INCEIE N’UTILISER QUE DES FUSIBLE DE MEME

:POUR UNE PROTECTION CONTINUE LES RISQUESATTENTIONFUSE.REPLACE ONLY WITH THE SAME TYPE 4A 125V (F501)

CAUTION:FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,

S

DG

Q5012SK3563(ORION_Q)

POWER AMP

BLACK

WHITE

BLAD

EW

IDE

CD5010R414903

AC120V_60Hz

T5028129109S

11

12

13

14

15

16

17

18

2

3

4

5

6

7

8

WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST

NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED

C503

0.00

150

0VB

C513

_2

0.00

1B

C506_1

0.0033250V KY

C518

470P500V B

C505

0.33

275V

ECQU

L

C514

_1

820P

2KV

RR

C502

0.00

150

0VB

C508_1

0.0022250V KY

C517

820P2KV RR

C501

0.00

82B

C509

0.047 TF

C510_1

0.039 TF

C511

150V KA

C526

_1

220

200V

YK

R503

100

1/4W

R522

1.2M

1/2W

R511

_1

1.2M

1/2W

R515

120K

1/2W

R520

12K

1/4W

R504

100 1/4W

R528

6.8K

1/4W

R538

1.5M

1/2W

R500

2.7M

1/2W

+-10

%

R506

2.7K

1/4W

R513

2.2K

1/4W

R512

680 1/4W

R507

27

R519

1K 1/4W

R505

1K 1/4W

R502

1K1/

4W

R509

220

1/4W

R508

220 1/2W

OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICENOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME

DANS LA NOMENCLATURE DES PIECESN’UTILISER QUE CELLS DECRITESDANGEREUSES AN POINT DE VUE SECURITE

:LES PIECES REPAREES PAR UN ETANTATTENTION:SINCE THESE PARTS MARKED BYCAUTIONDESCRIBED IN PARTS LIST ONLYCRITICAL FOR SAFETY,USE ONES

ARE

W81

9

W832

D509

MTZ

J18B

D506

MTZ

J18B

D528

MTZ

J5.6

B

D521

MTZ

J5.6

B

D517

MTZJ4.7B

D507

MTZ

J3.6

B

D503

1N40

05-E

IC

D502

1N40

05-E

IC

D505

21DQ09N

D514

1SS1

33

D508

1SS1

33 D512

1SS1

33

D522

1SS1

33

D510

PS106R

D501

1N40

05-E

IC

D504

1N40

05-E

IC

D513

21DQ09N

D511

1SS1

33

D515

1SS1

33

D516

1N4937-PAN

Q502KTC3198

BUFFER

Q507KTC3198

FEED BACKSWITCHING

R542

0.47

1W

R517

1.5 1W

GND

SOUND+B

SOUND_GND

+BUNREG+12V

GND

+B

POWER_FAIL

UNREG+12V

GND

TO MICON/CHROMA/TUNER

TO DEFLECTION/CRT

TO SOUND/AV

G-4G-3

TMD604PCB010

(MAIN PCB)TV POWER SCHEMATIC DIAGRAM

9.50.1

10.511.5

0

0

1.7

0

132.3

11.3

144.0

10.3

6.6

10.3

10.0

6.0

0.1

0

4.8

0.1

NC

NC

NC

NC

4.8

9.5

5.5

144.0

Page 22: MEMOREX mt1194

A B C D E F G H

A B C D E F G H

2

1

3

4

5

6

7

8

2

1

3

4

5

6

7

8

CP801_2003P-2100

1

TP401

TP024TP022 TP023

CP401A1561WV2-A5P

1

2

3

4

5

IC401 LA78040N-EV-OUT IC

1 2 3 4 5 6 7

T401STP-03Q24

1

2

3 4

6

BGR

1168

109

175

V801A48AKH13X04

F

J801ISMS01S

1

345

67

8 9

CD801CU012401

Q401TT2140LS-YBC11

H.OUTPUTVIDEO

8

E8E25

E12

GND

TERHEAAFC

B+

GND

ABL

GND

COLHV

F

S

FB401 BSC23-N0148

1

10

11

2

3

4

5

6

7

8

9

CD802

CD803

CP802A B2013H02-5P

1

2

3

4

5

CP802B B2013H02-5P

1

2

3

4

5

CP803B B2013H02-3P

1

2

3

CP803A B2013H02-3P

1

2

3

C427 10

50V

YKC417

_1 1025

VKA

C402 10

016

0VM

HE

HS401763WSAA013

HS402763WSA0017

R408

10K

+-1%

R409

56K +-1%

R429

3.9 1W

R404

11W

CP806

IS NON POLAR ONE.THE ALUMI ELECTROLYTIC CAPACITOR MARKED NPTHE RESISTOR MARKED F IS FUSE RESISTOR.NOTE:

WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST

NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED

C437

0.33

250V

PMS

C422

_1 0.1

100V

TF

C407

_1

0.00

1B

C801

330P

B

C406

270P500V B

C443

0.00

721.

25KV

PHEC4

10

680P

500V

B

C819

0.00

12K

VB

C440

0.1

100V

TF

C809

_2

390P

CH

C810

_2

390P

CH

C808

_2

390P

CH

C414 10

035

VYK

C418

470

25V

YK

C446 22

50V

YK

C434

2210

0VYK

C403 47

035

VYK

C435

0.1

100V

TF

C442

1025

0VYK

R804

_12.

7K1/

4W

R420

4.7K

R418

33K

R407

3.9

1/2W

R421

220K

1/4W

R410

390

1/2W

R415

680 1/2W

R422

3.9

1/2W

R419 68

0

R417

15K

1/4W

R446

470

1/2W

R423

100 1/4W

R802

2.7K

1/4W

R403

22K 1/4W

R427

100

1/4W

R416

11/

2W

R806

2.7K

1/4W

R424

6.8K 1/4W

R445

150K 1/4W

R405

1K

R809

4.7K R8

11

4.7K

R813

330

R814

4.7K

R815

330

R816

330

R448

680 1/2W

R449

680 1/2WOF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE

NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME

DANS LA NOMENCLATURE DES PIECESN’UTILISER QUE CELLS DECRITESDANGEREUSES AN POINT DE VUE SECURITE

:LES PIECES REPAREES PAR UN ETANTATTENTION

:SINCE THESE PARTS MARKED BYCAUTIONDESCRIBED IN PARTS LIST ONLYCRITICAL FOR SAFETY,USE ONES

ARE

W817

W831

W84

7W

845W848

D404

MTZ

J6.2

B

D412

MTZ

J5.1

B

DEFLECTION SIGNALB.SIGNALG.SIGNALR.SIGNAL

D403

1N4002-PAN

D410

1N49

37-P

AN

D408

1N40

02-P

AN

D409

1N40

02-P

AN

D406

1N4002-PAN

D411

1N4937-PAN

D405

1N49

37-P

AN

Q803_12SC4217

BLUE OUTQ802_1

2SC4217

GREEN OUTQ801_1

2SC4217

RED OUT

Q4022SC1627_Y

H.DRIVE

R447

150 2W

R803

_2

12K

2W

R805

_2

12K

2W

R807

_2

12K

2W

R402

1 1W

L801

100u

H

GND GND

CLAMP CLAMP CLAMP

G.OUT G.OUT G.OUT

R.OUT R.OUT R.OUT

B.OUT B.OUT B.OUT

HEATER HEATER

GND GND

180V 180V

X-RAY

GND

V_FEEDBACK

V_OUT

ABCL

H_OUT

H_SYNC

GND

+B

UNREG+12V

FROM TV POWER

FROM/TO MICON//CHROMA/TUNER

FROM MICON/CHROMA/TUNER

TMD604

TCD460

NC

NC

3.2

120.5

3.2

126.0

3.2

SCREEN

FOCUS

2

1

130.0

00

27.0

0.3

3.5 2.0 12.0 25.0 3.5

NC

025.0

(MAIN PCB)DEFLECTION/CRT SCHEMATIC DIAGRAM

NC

00

0

101.6

6.4 99.6

AMP

THERMALPROTECTION

PUMPUP

GND GND

CLAMP CLAMP

G.OUT G.OUT

R.OUT R.OUT

B.OUT B.OUT

HEATER HEATER

GND GND

12

13

8

10

14 15 16

FOCUS

SCREEN

PCB110

PCB010

TO DY

96.4

130.0

132.5

132.5

0

4.3

0

2.72.72.7

0

128.0

48.0

7.0

0

25.0

11

180V180V

9

G-6G-5

Page 23: MEMOREX mt1194

A B C D E F G H

A B C D E F G H

2

1

3

4

5

6

7

8

2

1

3

4

5

6

7

8

AUDIO SIGNAL

SPEAKER

SP1001S08F218 OHM

H E

J703AV1-09D-4

RCA JACK WHITE

12H E

J702AV1-09D-3

RCA JACK YELLOW

12

TM101RC-DW110

CD101BCH012003

CD101ACH012002

WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST

NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED

C100

9

1F

C100

4

0.00

27B

C1001

0.1 B

C100

5_1

1050

VYK

R703

820

R1003

68KR1

005

270K

R100

4

100K

R1001

47K 1/4W

R704

10

R702

47K

R701

68

R1008

39K

OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICENOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME

DANS LA NOMENCLATURE DES PIECESN’UTILISER QUE CELLS DECRITESDANGEREUSES AN POINT DE VUE SECURITE

:LES PIECES REPAREES PAR UN ETANTATTENTION:SINCE THESE PARTS MARKED BYCAUTIONDESCRIBED IN PARTS LIST ONLYCRITICAL FOR SAFETY,USE ONES

ARE

W807W

803

W851

IC10

01AN

7511

SOUN

D AM

P IC

1234

5 6 7 8

TUNER VIDEO SIGNAL

AUDIO_IN2

VIDEO_IN2

GND

SOUND_GND

SOUND+B

GND

AUDIO_MUTE

P.CON+5V

AUDIO_OUT

FROM MICON/CHROMA/TUNER

FROM TV POWER

TO MICON/CHROMA/TUNER

G-8G-7

TMD604PCB010

VIDEO 2

AUDIO 2

(FRONT)

V_IN

A_IN

-+

0

08.2 3.5 3.4

3.95.1 0.3

SOUND/AV SCHEMATIC DIAGRAM(MAIN PCB)

ACCESSORY

11

22

19

20

18

17

Page 24: MEMOREX mt1194

WAVEFORMS

H-1

6 1V 20µs/div

NOTE: The following waveforms were measured at the point of the correspondingballoon number in the schematic diagram.

MICON/CHROMA/TUNER

1 0.5V 2ms/div 200V 20µs/div11

1V 20µs/div72 20V 20µs/div

DEFLECTION/CRT

10V 5ms/div12

3 200mV 20µs/div 8 0.5V 5ms/div 10V 5ms/div13

0.5V 5ms/div4 9 20V 20µs/div 50V 20µs/div14

10 2V 20µs/div5 1V 20µs/div 15 50V 20µs/div

Page 25: MEMOREX mt1194

WAVEFORMS

H-2

16 50V 20µs/div

NOTE: The following waveforms were measured at the point of the correspondingballoon number in the schematic diagram.

SOUND/AV

0.5V 1ms/div17

1V 1ms/div18

200mV 500µs/div19

20 500mV 20µs/div

Page 26: MEMOREX mt1194

MECHANICAL EXPLODED VIEW

I-1

PCB010(MAIN PCB ASS'Y)

TU001

FB401

205

204

203

103

206

206

202

L503

V801

J801

PCB110(CRT PCB ASS'Y)

106102

104201

201

201

201

206

105

107

101B

203

101A

SP1001

101

101D

101C

203

203

203

103

Page 27: MEMOREX mt1194

MECHANICAL REPLACEMENT PARTS LIST

REF. NO. PART NO. DESCRIPTION101 7A701A126A FRONT CABI ASS'Y101A 701WPJC696 CABINET,FRONT101B 713WPAA124 GUIDE,REMOCON101C 735WPBB125 BUTTON,FRAME101D 735WPAA610 BUTTON,BASE

102 A3R107Q740 CABINET,BACK ASS'Y or702WPAA476 CABINET,BACK or702WPAA504 CABINET,BACK or702WPAA680 CABINET,BACK

103 735WPAA647 HOLDER,SPEAKER104 722A08A148 SHEET,RATING105 741WUA0019 SPRING,EARTH106 8994201000 HOLDER,CRT WIRE107 899HV3T000 HOLDER,ANODE WIRE108 800WQ0A024 FELT,SHEET 5x80 T=0.5

201 8117540A64 SCREW,TAPPING(B0) TRUSS 4x16202 8109I30804 SCREW,TAP TITE(B) WH7 3x8203 8110630A04 SCREW,TAP TITE(P) BRAZIER 3x10204 8107630804 SCREW,TAP TITE(S) BRAZIER 3x8205 8109I30604 SCREW,TAP TITE(B) WH7 3x6206 8121F50B84 SCREW,TAP TITE(P) FAI20 FLAT 5x28

--- A3R006V975 INSTRUCTION BOOK KIT--- 791WHAA017 LAMIFILM BAG--- 792WHAA050 PACKAGE,TOP--- 792WHAA051 PACKAGE,BOTTOM--- 793WCDC312 GIFT,BOX--- J3R00601A INSTRUCION BOOK--- J3R00602A WARRANTY SHEET--- JB5U0200 POLYBAG,INSTRUCTION

J1-1

Page 28: MEMOREX mt1194

ELECTRICAL REPLACEMENT PARTS LIST

REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTIONRESISTORS DIODES

R402 R3T181010J R,METAL OXIDE 1 OHM 1W or D511 D1VT001330 DIODE,SILICON 1SS133T-77R3K581010J R,METAL OXIDE 1 OHM 1W ! D512 D1VT001330 DIODE,SILICON 1SS133T-77

R404 R63581010J R,FUSE 1 OHM 1W D513 D28T21DQN9 DIODE SCHOTTKY 21DQ09N-TA2B1 ! R408 R4X5T6103F R,METAL 10K OHM 1/6W or D514 D1VT001330 DIODE,SILICON 1SS133T-77

R4T5T6103F R,METAL 10K OHM 1/6W D515 D1VT001330 DIODE,SILICON 1SS133T-77 ! R409 R4X5T6563F R,METAL 56K OHM 1/6W or ! D516 D2MXN49370 DIODE,FAST RECOVERY 1N4937-PAN or

R4T5T6563F R,METAL 56K 0HM 1/6W D2WXN49370 DIODE SILICON 1N4937 ! R429 R635813R9J R,FUSE 3.9 OHM 1W D517 D97U04R71B DIODE,ZENER MTZJ4.7B T-77 ! R447 R3T28A151J R,METAL OXIDE 150 OHM 2W or D521 D97U05R61B DIODE,ZENER MTZJ5.6B T-77

R3K58A151J R,METAL OXIDE 150 OHM 2W D522 D1VT001330 DIODE,SILICON 1SS133T-77 ! R500 R0G3K2275K RC 2.7M OHM 1/2W D528 D97U05R61B DIODE,ZENER MTZJ5.6B T-77 ! R501 R5T2CD3R3J R,CEMENT 3.3 OHM 5W or D602 D97U08R21B DIODE,ZENER MTZJ8.2B T-77

R5X2CD3R3J R,CEMENT 3.3 OHM 5W D603 D1VT001330 DIODE,SILICON 1SS133T-77 ! R508 R002T2221J RC 220 OHM 1/2W D604 D97U08R21B DIODE,ZENER MTZJ8.2B T-77 ! R509 R002T4221J RC 220 OHM 1/4W D606 D2MXN40020 DIODE,FAST RECOVERY 1N4002-PAN or ! R514 R63581R22J R,FUSE 0.22 OHM 1W D2WT011E10 DIODE SILICON 11E1-EIC ! R515 R002T2124J RC 120K OHM 1/2W ICS ! R517 R3T1811R5J R,METAL OXIDE 1.5 OHM 1W IC101 I56F07091B IC OEC7091B ! R518 R4X5T6562F R,METAL 5.6K OHM 1/6W or IC199 A3R101Q015 INIT DATA

R4T5T6562F R,METAL 5.6K OHM 1/6W ! IC401 I03TD804N0 IC LA78040N-E ! R519 R002T4102J RC 1K OHM 1/4W ! IC501 000220002W PHOTO COUPLER PS2561AL1-1-V(W) ! R538 R002T2155J RC 1.5M OHM 1/2W IC1001 I01DP75110 IC AN7511 ! R542 R3T181R47J R,METAL OXIDE 0.47 OHM 1W or TRANSISTORS

R3K581R47J R,METAL OXIDE 0.47 OHM 1W ! Q401 TD3Q021400 TRANSISTOR SILICON TT2140LS-YBC11 ! R629 R3T28B220J R,METAL OXIDE 22 OHM 3W or ! Q402 TC5T01627Y TRANSISTOR SILICON 2SC1627_Y(TPE2)

R3K58B220J R,METAL OXIDE 22 OHM 3W ! Q501 T25F035630 FET 2SK3563(ORION_Q)

! R803 R3T28A123J R,METAL OXIDE 12K OHM 2W ! Q502 TCATC31980 TRANSISTOR,SILICON KTC3198-AT(Y,GR)

! R805 R3T28A123J R,METAL OXIDE 12K OHM 2W Q507 TCATC31980 TRANSISTOR,SILICON KTC3198-AT(Y,GR)

! R807 R3T28A123J R,METAL OXIDE 12K OHM 2W Q601 TCAT032034 TRANSISTOR, SILICON KTC3203_Y-ATCAPACITORS Q602 TCAT032034 TRANSISTOR, SILICON KTC3203_Y-AT

C402 E5EZFB101M CE 100 UF 160V Q603 TCAT032034 TRANSISTOR, SILICON KTC3203_Y-AT ! C403 E02LT4471M CE 470 UF 35V Q606 TCAT032034 TRANSISTOR, SILICON KTC3203_Y-AT ! C414 E02LU4101M CE 100 UF 35V Q607 TCATC31980 TRANSISTOR,SILICON KTC3198-AT(Y,GR)

! C418 E02LT3471M CE 470 UF 25V ! Q801 TC3F042170 TRANSISTOR,SILICON 2SC4217(D,E)-RAC

! C434 E02LU8220M CE 22 UF 100V ! Q802 TC3F042170 TRANSISTOR,SILICON 2SC4217(D,E)-RAC

C437 P4J7F3334J CMPP 0.33 UF 250V PMS ! Q803 TC3F042170 TRANSISTOR,SILICON 2SC4217(D,E)-RAC

! C443 P4G8FJ722H CMPP 0.0072UF 1.25KV PHE COILS &TRANSFORMERS ! C446 E02LU5220M CE 22 UF 50V L001 02167F3R3J COIL 3.3 UH ! C503 C0JTB0513K CC 0.001 UF 500V B L101 02167F3R3J COIL 3.3 UH ! C505 P2122B334M CMP 0.33 UF 275V ECQUL ! L501 029X000417 COIL,LINE FILTER SS11V-10062-CH ! C506 CC3LE0ML3M CC 0.0033UF 250V ! L503 028R200031 COIL,DEGAUSS 8R200031 ! C508 CC3LE0MH3M CC 0.0022UF 250V L801 021673101K COIL 100 UH

C514 C0PLRR7W2K CC 820 PF 2KV RR T401 045011001L TRANS,HORIZONTAL DRIVE STP-03Q24C517 C0PLRR7W2K CC 820 PF 2KV RR ! T502 048129109S TRANSFORMER,SWITCHING 8129109S

! C519 E02LT2102M CE 1000 UF 16V JACKSC521 E5EZFB101M CE 100 UF 160V J702 060Q401077 RCA JACK AV1-09D-3

! C526 E02LFC221M CE 220 UF 200V J703 060Q401076 RCA JACK AV1-09D-4 ! C801 CHGTB04L2K CC 330 PF 50V B ! J801 066F120018 SOCKET,CATHODE RAY TUBE ISMS01S

C819 C0JBB0713K CC 0.001 UF 2KV B SWITCHESDIODES SW101 0504101T34 SWITCH,TACT EVQ21505R

D001 D97U03301B DIODE,ZENER MTZJ33B T-77 SW102 0504101T34 SWITCH,TACT EVQ21505RD403 D2MXN40020 DIODE,FAST RECOVERY 1N4002-PAN or SW103 0504101T34 SWITCH,TACT EVQ21505R

D2WT011E10 DIODE SILICON 11E1-EIC SW104 0504101T34 SWITCH,TACT EVQ21505RD404 D97U06R21B DIODE,ZENER MTZJ6.2B T-77 SW105 0504101T34 SWITCH,TACT EVQ21505R

! D405 D2MXN49370 DIODE,FAST RECOVERY 1N4937-PAN or P.C.BOARD ASSEMBLIESD2WTAU02A0 DIODE SILICON AU02A-EIC PCB010 A3R107Q010 PCB ASS'Y TMD604A

D406 D2MXN40020 DIODE,FAST RECOVERY 1N4002-PAN or PCB110 A3R101Q110 PCB ASS'Y TCD460AD2WT011E10 DIODE SILICON 11E1-EIC MISCELLANEOUS

D408 D2MXN40020 DIODE,FAST RECOVERY 1N4002-PAN or B501 024HT03553 CORE,BEADS W5RH3.5X5X1.0D2WT011E10 DIODE SILICON 11E1-EIC B504 024HT03553 CORE,BEADS W5RH3.5X5X1.0

D409 D2MXN40020 DIODE,FAST RECOVERY 1N4002-PAN or ! CD501 1209414909 CORD AC BUSH 9414909 orD2WT011E10 DIODE SILICON 11E1-EIC 120R414903 CORD AC BUSH 0R414903

! D410 D2MXN49370 DIODE,FAST RECOVERY 1N4937-PAN or CD801 06CU012401 CORD CONNECTOR CU012401D2WTAU02A0 DIODE SILICON AU02A-EIC CD802 WCL6848038 FLAT CABLE AWM2468 AWG26 5C GRAY 480MM

! D411 D2MXN49370 DIODE,FAST RECOVERY 1N4937-PAN or ! CP401 069S450089 CONNECTOR PCB SIDE A1561WV2-A5PD2WTAU02A0 DIODE SILICON AU02A-EIC ! CP502 069S420110 CONNECTOR PCB SIDE A1561WV2-2P

! D412 D97U05R11B DIODE,ZENER MTZJ5.1B T-77 CP601 0694260139 CONNECTOR PCB SIDE 173979-6 ! D501 D2WXN40050 DIODE SILICON 1N4005-EIC CP801 069D01001A CONNECTOR PCB SIDE 003P-2100 ! D502 D2WXN40050 DIODE SILICON 1N4005-EIC CD101A 06CH012002 CORD CONNECTOR CH012002 ! D503 D2WXN40050 DIODE SILICON 1N4005-EIC CD101B 06CH012003 CORD CONNECTOR CH012003 ! D504 D2WXN40050 DIODE SILICON 1N4005-EIC CP802A 067U005049 WIRE HOLDER B2013H02-5P ! D505 D28T21DQN9 DIODE SCHOTTKY 21DQ09N-TA2B1 CP802B 067U005049 WIRE HOLDER B2013H02-5P

D506 D97U01801B DIODE,ZENER MTZJ18B T-77 CP803A 067U003029 WIRE HOLDER B2013H02-3PD507 D97U03R61B DIODE,ZENER MTZJ3.6B T-77 CP803B 067U003029 WIRE HOLDER B2013H02-3PD508 D1VT001330 DIODE,SILICON 1SS133T-77 ! F501 081PC04005 FUSE 51MS040L

! D509 D97U01801B DIODE,ZENER MTZJ18B T-77 ! FB401 043219018Y TRANSFORMER,FLYBACK BSC23-N0148 ! D510 D2WXRU2AM0 DIODE SILICON RU2AM-EIC FH501 06710T0009 HOLDER,FUSE EYF-52BCY

J2-1

Page 29: MEMOREX mt1194

ELECTRICAL REPLACEMENT PARTS LIST

REF. NO. PART NO. DESCRIPTIONMISCELLANEOUS

FH502 06710T0009 HOLDER,FUSE EYF-52BCYOS101 077Q000025 REMOTE RECEIVER KSM-713SYSP1001 070Y132018 SPEAKER S08F21

! TH501 D8EE0B1400 DEGAUSS ELEMENT B59203-S1060-B14

TM101 076N0DW110 TRANSMITTER RC-DW110TU001 0163100011 RF UNIT ENG36A01GY or

0163300005 RF UNIT 115-V-K015AR_B ! V801 098Q200490 CRT W/DY A48AKH13X04

X601 100BT3R537 CRYSTAL HC-49U

RESISTORRC................... CARBON RESISTOR

CAPACITORSCC................... CERAMIC CAPACITORCE................... ALUMI ELECTROLYTIC CAPACITORCP................... POLYESTER CAPACITORCPP.................. POLYPROPYLENE CAPACITORCPL.................. PLASTIC CAPACITORCMP................... METAL POLYESTER CAPACITORCMPL................ METAL PLASTIC CAPACITORCMPP................ METAL POLYPROPYLENE CAPACITOR

J2-2

Page 30: MEMOREX mt1194

M3R1-07Q

O/R NO.

SPEC.NO.

W443056