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Memorex MT1125A Service Manual Download Page 22

SW105

SW104

SW103

SW102

C123

TU001

W011

C204

R601

R602

C635

D603

W024

C215

C620

C627

C217

Q602

D606

C644

R604

R625

R626

R643

C637

C615

C617

R607

R605

R609

C004

CF201_1

L205

R627

R120

C611

C608

R648

C213

C002

C628

D602

D610

W016

C625

W014

C623

C649

Q604

C211

C203

C201

C646

C202

W018

X601

CP101

D001

R136

R145

R132

C134

IC199

W015

C121

C111

C102

C105

R110

IC104

C120

D101

X101

C101

C103

W054

CP351

W070

W010

SW101

FH501

FH502

F501

RY501

TH501

CP501

C440

CP502

IC401

IC402

T401

C443_1

R427

C437

D403

W086

W085

R433

R429

C433

C448

C430

L406

C434

D411

C403

C420

R422

CP803A

R401

R405

R408

C417

R418

C427

R417

R416

C429

C425

C415

CP401_1

W818

C507_1

R446

C446_1

C439

Q402

Q403

R424

HS401

W096

C001

W829

C626

R421

R409

R445

L601

W065

R432

R131

W032

C643

C426_1

C405

C208

OS101

C435

W052

W053

R125

CP802A

C416

R411

C414

L201

W022

C351

L202

C618

D410

D408

D404

D407

D605

R426

W091

R413

C404

R425

W076

W075

C422

VR401

C636

D401

D402

R517

D517

IC502

C540

R519

C541

R520

FH503

F502

FH504

D501

D502

C502

D503

C503

C514

D504

IC501

D506

D518

D521

C509

R541

R542

VR502

R523

Q504

D516

R529

R514

C554

R552

C549

Q507

C508

D528

R532

R533

IC506

R505

L502

C530

C505

L501

T501

HS501

R507

R506

R503

R502

R515

R518

R535

Q502

R501

R554

R553

D505

D509

ICP505

W078

B504

C560_1

C521

D510

R509

ICP502

C518

C531_1

W081

J701

W095

W036

W037

W087

W089

W090

R415

D409

C705

IC702

C744

W040

W066

D520

R510

D519

W082

W083

W079

R108

W042

R644

W019

W092

W017

W020

W025

IC601

C718

R001

R002

W046

W045

W049

W034

C706

D704

D702

TP201

C655

W897

C517

C641

W064

W031

D514

Q503

R521

Q401

R431

W043

C802_1

CC006

CP802B

CP803B

J801

C807

C801

C805

R811

C804

R809

R813

CC004

R816

C806

CP801

R803

R805

R807

R802

R804

R806

Q803

Q802

Q801

TP023

TP024

TP022

CP806

R814

R815

W001

W849

J702

IC705

C761

C764

L704

C757

C748

C749

C765

C780

C722

C719

C715

C713

C708

C725

C730

C731

C737

C709_1

C714_1

C716

C720

C740

W007

W008

TP701

TP702

D708

D707

CP702B

W009

W003

W004

W027

CP702A

R130

W057

W039

D701

D703

L701

L702

C732

C729

W006

W005

R500

W029

C750

W074

W035

C751

D705

R141

W088

CP701

R611

R114

B502

C512

C515

D102

C726

C728

W047

W048

W033

W051

W050

W073

W044

CD701

W898

R362

C362

D706

D709

Q501

W026

W038

W012

W013

W023

HS351

C352

W828

W072

W839

W805

W061

W062

R354

W063

W060

W859

IC351

W810

TP401

C353

C358

W834

TP101

C752

C721

W093

B505

C710

C711

C717

W059

C753

W041

D710

C712

R526

C510

W094

W068

C357_1

L705

D711

C409

W097

C511

W077

R133

C657

C355

C356

R442

R441

R440

W080

CP805

R419

W030

W860

R360

R363

R543

R760

S804X

S804Y

C529

C516

S802X

C418

C228

S808Y

S808X

C526

S809Y

C401

FB401

R435

R181

R180

S811Y

S813Y

S813X

R407_2

W823

W817

R414_1

W843

W857

W838

W863

W815

W811

W848

C150

S810X

S810Y

S802Y

S809X

S811X

S806X

S806Y

D104

D105

C444_1

R423

R428

PRINTED CIRCUIT BOARDS

MAIN/CRT/AV/STEREO (INSERTED PARTS)

SOLDER SIDE

6.3A 125V

4A 125V

3A 125V

2.5A 250V

F-1

F-2

*

*

*

Summary of Contents for MT1125A

Page 1: ...SERVICE MANUAL Design and specifications are subject to change without notice MT1125A COLOR TELEVISION RECEIVER ORIGINAL MFR S VERSION B...

Page 2: ...SERVICE MANUAL COLOR TELEVISION RECEIVER MT1125A G F MFR S VERSION OEC7044B OEC7044A IC101 REVISION 1 MFR S VERSION G Please file this revision with the original version A63AFW36X A63AHC26X CRT...

Page 3: ...e interchangeable Alteration of CRT REF NO PART NO DESCRIPTION PART NO DESCRIPTION V801 0984250502 COLOR PICTURE TUBE A63AHC26X 092T250501 COLOR PICTURE TUBE A63AFW36X R429 R6558A1R8J R FUSE 1 8 OHM 2...

Page 4: ...SERVICE MANUAL MT1125A COLOR TELEVISION RECEIVER D B MFR S VERSION OEC3041B OEC3041A IC101 REVISION 1 MFR S VERSION D Please file this revision with the original version...

Page 5: ...S VERSION D REF NO PART NO DESCRIPTION PART NO DESCRIPTION IC101 I53F53041A IC OEC3041A I53F53041B IC OEC3041B PCB010 A3I011H01A MAIN PCB ASS Y TM9441A A3I011H01B MAIN PCB ASS Y TM9441A MAIN PCB s are...

Page 6: ...ock while the electric current is flowing 3 USE THE DESIGNATED PARTS The parts in this equipment have the specific characters of incombustibility and withstand voltage for safety Therefore the part wh...

Page 7: ...S LOCATION GUIDE BLOCK DIAGRAM PRINTED CIRCUIT BOARDS MAIN CRT AV STEREO SCHEMATIC DIAGRAMS MICON TUNER CHROMA DEFLECTION CRT POWER SOUND AMP VIDEO SWITCH IN OUT STEREO WAVEFORMS MECHANICAL EXPLODED V...

Page 8: ...7 ch 13 ch CATV A5 ch I ch J ch W 29 ch GGG ch W 84 ch UHF 14 ch 69 ch Tuning System Frequency syn Voltage syn Others G 8 Preset Channel channels G 9 Intermediate Frequency Picture fP 45 75 MHz MHz M...

Page 9: ...nt Phono Jack RCA 8 3 BNC Video Input Rear Phono Jack RCA 8 3 BNC Video Output Rear Phono Jack RCA 8 3 BNC Audio Input Front Phono Jack RCA 8 3 x2 Audio Input Rear Phono Jack RCA 8 3 x2 Audio Output R...

Page 10: ...AB Double Full Color Carton W Photo Dimensions 689 mm W 577 mm D 620 mm H Design As Per BUYER s Description of Origin Yes No DropTest Natural Dropping At 1 Corner 3 Edges 6 Surfaces Height 25cm 31cm 4...

Page 11: ...l GamePosition Fastext Unitext TopText Closed Caption Picture Menu Mid Night Theater V Chip G 32 Switch Front Power Tact Channel Up Reset Volume Up Set Up System Select Channel Down Enter Volume Down...

Page 12: ...p 8 Initial Page 9 Store Program 10 Reveal F T B 11 Sleep Hold 12 Aft Skip List 1 Preset Rotate 2 5 5 6 5MHz Browse 0 10 Auto Memory Std Auto Tone 1 2 Auto Memory Info Call Band Select Mono Auto Reset...

Page 13: ...f the Anode with the tip of the Screwdriver A cracking noise will be heard as the voltage is discharged Flip up the sides of the Rubber Cap in the direction of the arrow and remove one side of the sup...

Page 14: ...DEFLECTION YOKE Refer to Fig 2 1 1 2 3 4 5 Loosen the screw 1 Remove the Convergence Purity Magnet in the direction of arrow A Loosen the screw 2 Remove the 3 Wedges Remove the Deflection Yoke in the...

Page 15: ...ng 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 NOTE FOR THE REPLACING OF MEMORY IC If a service...

Page 16: ...bar pattern Activate the adjustment mode display of Fig 2 1 and press the channel button 2 on the remote control The Fig 2 3 appears on the display Adjust the adjustment mode display of Fig 2 3 until...

Page 17: ...1 of CP101 and the pin 6 GND of CP101 Activate the adjustment mode display of Fig 2 1 and press the channel button 4 on the remote control The Fig 2 4 appears on the display Press the channel button...

Page 18: ...A 2 13 VCO FREERUN 1 2 3 Receive an 80dB monoscope pattern Connect the digital voltmeter between the TP201 and the Ground Adjust the L205 until the digital voltmeter is 3 1 0 05V 2 14 SEPARATION 1 2...

Page 19: ...ming adjustments in section 3 1 1 2 3 4 5 Receive the green raster pattern from color bar generator Adjust the pair of purity magnets to center the color on the screen Adjust the pair of purity magnet...

Page 20: ...D3 1 MAJOR COMPONENTS LOCATION GUIDE TU001 FOCUS VOLUME SCREEN VOLUME FB401 CP101 MAIN VR401 L205 TP201 TP401 VR502...

Page 21: ...DC VOL Q604 Q605 VIDEO BUFFER 67 Q602 BUFFER 2 3 9V REG IC IC601 KIA7809PI 1 RESET SW Q105 32 OS101 1 2 3 5 2 MUTE SW Q351 X RAY SW Q103 8V 5V 5V 1 33 6 E 1 E 2 POWER VOL UP KEY1 10 CH UP VOL DOWN CH...

Page 22: ...037 W087 W089 W090 R415 D409 C705 IC702 C744 W040 W066 D520 R510 D519 W082 W083 W079 R108 W042 R644 W019 W092 W017 W020 W025 IC601 C718 R001 R002 W046 W045 W049 W034 C706 D704 D702 TP201 C655 W897 C51...

Page 23: ...701 R707 R706 R734 C733 R708 R711 R709 R720 R721 R710 R712 R739 R740 C707 R663 R662 R155 R152 R151 R665 C723 C724 R716 IC701 R756 C702 C701 R745 R743 R753 R752 R755 R757 R729 R731 R704 C762 R744 R751...

Page 24: ...0 270 R181 270 D101 1SS133 D102 11E1N IC199 M24C01 BN6 MEMORY IC 1 2 3 4 5 6 7 8 GND B Vout OS101 PIC 28143SY 2 1 2 3 OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE NOTE THIS SCHEMATIC DIAGRAM IS TH...

Page 25: ...R601 1K R602 1K R202 100K R201 100K R665 1K R624 24K R623 24K R622 1K R611 22K 1 4W R643 51 1 2W R218 2 7K R644 220 1 2W R655 3 3K R669 3 3K R6621K R618 1M R663 2 2K R660 100 R656 1K R614 820 R638 3 9...

Page 26: ...C414 100 35V MHE C404 470 16V YK C401 10 16V KA C433 470 35V YK C418 1000 25V MHE C405 470 16V YK C448 22 100V YK C426_1 3300 6 3V YK IC402 BA05T 5V REG IC 1 2 3 R413 470 1 2W R425 180 1 2W R426 470 1...

Page 27: ...C514 0 0027 2KV BP C518 470P 500V B C511 0 0022 B C508 0 001 125V MX C526 330 10V MHE C541 47 160V BXA C510 100 35V MHE C540 1 160V MHE IC502 KIA7805PI 5V POWER REG IC 1 2 3 R515 10K R523 10K R521 10K...

Page 28: ...LATEST AT THE TIME DANS LA NOMENCLATURE DES PIECES N UTILISER QUE CELLS DECRITES DANGEREUSES AN POINT DE VUE SECURITE ETANT LES PIECES REPAREES PAR UN ATTENTION DESCRIBED IN PARTS LIST ONLY CRITICAL F...

Page 29: ...47K R714 47K R715 1K R707 1K R739 47K R740 75 R711 820 R709 820 R712 47K R710 47K R734 1K R708 75 R754 10K R760 100 1 2W R765 3 3K R759 3 3K R719 75 R716 1K R761 10 R766 47K R720 1K R721 1K R749 10K R...

Page 30: ...2 50V KA C749 2 2 50V KA R751 1 8K R756 100K R752 1 8K R757 100 R755 100 R745 4 7K R753 1K R743 4 7K R744 1K R731 560 R729 560 R723 220K R702 100 R701 100 R705 1 8M R730 180K R732 100K R727 470 R725...

Page 31: ...ng balloon number in the schematic diagram H 1 1V 0 5ms div 11 5 0 5V 1ms div 16 1V 20 s div CHROMA 12 20V 20 s div 0 5V 20 s div 7 200mV 5ms div 1 2 0 5V 20 s div 0 5V 20 s div 8 13 200mV 20 s div 3...

Page 32: ...matic diagram WAVEFORMS H 2 DEFLECTION CRT 18 0 5V 5ms div 10V 5ms div 22 10V 5ms div 23 SOUND AMP 31 200mV 1ms div 19 20V 20 s div 50V 20 s div 24 20 2V 20 s div 25 50V 20 s div POWER 200V 20 s div 1...

Page 33: ...WAVEFORMS NOTE The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram H 3 33 500mV 5 s div 34 20 0V 20 s div...

Page 34: ...3 110 107 109 111 201 201 201 112 201 201 201 201 203 J801 PCB110 CRT PCB ASS Y 118 106 207 118 118 118 V801 207 207 207 L503 113 105 117 117 116 114 116 102 202 PCB010 MAIN PCB ASS Y TU001 204 105 11...

Page 35: ...A0009 HOLDER CRT WIRE 117 8994201000 HOLDER CRT WIRE 118 769WSA0009 WASHER CRT T 1 119 HEAT SINK 120 800WQ00045 FELT SHEET 5x150xT0 5 121 8995034000 CORD CLIP UL CO 122 7240001041 SHEET CSA WARNING 12...

Page 36: ...M24C01 BN6 C433 E02LF4471M CE 470 UF 35V IC201 I03FE814B0 IC LA76814BM MPB C434 E02LT8220M CE 22 UF 100V IC351 I03SP46000 IC LA4600 C437 P411F3564J CMPP 0 56 UF 250V ECWF IC401 I03SD78410 IC LA7841 C...

Page 37: ...VARIABLE RESISTORS VR401 V126213BT2 VOLUME SEMI FIXED RH0684C13R VR502 V1263L2BTC VOLUME SEMI FIXED RH063MCN2R P C BOARD ASSEMBLIES PCB010 A3I011H01A PCB ASS Y TM9441A PCB110 A3I011H11A PCB ASS Y TC93...

Page 38: ...M3I0 11H A993514 SPEC NO O R NO...

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