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Memorex MT1125, Service Manual

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Memorex MT1125 Service Manual Download Page 18

PRINTED CIRCUIT BOARDS

MAIN/CRT (CHIP MOUNTED PARTS)

SOLDER SIDE

F-3

F-4

1

25

41

64

1

13

25

37

R101

R155

IC201

R202

R209

R201

C632

C612

R206

C210

C207

C206

R204

R203

R208

C218

R618

C610

R624

R623

R622

R636

R637

R638

R632

R608

R211

R606

R612

R124

C216

R647

R646

R645

R215

R613

R653

C645

R655

C647 R656

R663

R662

R661

R619

R651

R620

R652

R664

R665

R666

C654

C224

R213

R212

R217

R218

C648

IC101

R128

R127

R142

R105

R106

R137

C129

C130

R134

R138

C109

C110

R121

R122

R123

R118

R119

R111

R146

R116

R144

C108

R112

R113

R109

R139

R115

R150

R149

R148

R745

C701

C702

R752

R751

R743

R756

R744

R704

R729

R731

R703

R755

R723

IC701

R757

R352

R353

R354

R117

R419

R420

R403

R406

R404

R007

R006

R152

R151

R210

R357

R108

Summary of Contents for MT1125

Page 1: ...SERVICE MANUAL Design and specifications are subject to change without notice MT1125 ORIGINAL MFR S VERSION A COLOR TELEVISION RECEIVER...

Page 2: ...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 3: ...HE REPLACING OF MEMORY IC ELECTRICAL ADJUSTMENTS MAJOR COMPONENTS LOCATION GUIDE BLOCK DIAGRAM PRINTED CIRCUIT BOARDS MAIN CRT SCHEMATIC DIAGRAMS MICON TUNER CHROMA DEFLECTION CRT POWER SOUND AMP WAVE...

Page 4: ...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 MHz...

Page 5: ...ront 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 Audio Input Rear Phono Jack RCA 8 3 Audio Output Rear...

Page 6: ...ges 6 Surfaces Height 25cm 31cm 46cm 62cm 80cm Container Stuffing 204 Sets 40 container G 30 Accessories Owner s Manual W Guarantee Card English French AC Plug Adapter Channel Film Battery UM 4 x 2 Re...

Page 7: ...SECAM 1 Time Set Volume Up 2 Muting Volume Down 3 CH Skip CH Call 4 CH1 CH2 CH Down 5 Channel CH Up 6 Text Mix TV CH Down Page Down 7 Display Cancel CH Up Page Up 8 Initial Page 9 Store Program 10 Re...

Page 8: ...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 9: ...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 10: ...INIT 00 83 0010 CRTON ADDRESS DATA 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...

Page 11: ...color 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...

Page 12: ...5 Receive the crosshatch pattern Using the remote control set the brightness and contrast to normal position Activate the adjustment mode display of Fig 2 1 and press the channel button 1 on the remot...

Page 13: ...L 400Hz R 2KHz Activate the adjustment mode display of Fig 2 1 and press the channel button 7 on the remote control The Fig 2 9 appears on the display Press the channel button 2 on the remote control...

Page 14: ...the color bar generator from the green raster pattern to the crosshatch pattern Combine red and blue of the 3 color crosshatch pattern on the center of the screen by adjusting the pair of 4 pole magn...

Page 15: ...D3 1 MAJOR COMPONENTS LOCATION GUIDE TU001 FOCUS VOLUME SCREEN VOLUME FB401 CP101 MAIN VR401 L205 TP201 CP351...

Page 16: ...PUT DY Q101 V BUFFER 17 VS Q102 H BUFFER 18 HS 3 1 5V REG IC402 KIA7805PI 5V 5 XT1 6 XT2 X101 32 768KHz X RAY TEST SW Q403 3 POWER REG IC501 STR30110 D501 D504 RECTIFIER 1 3 F501 AC IN 2 5 L501 DEGAUS...

Page 17: ...FH501 FH502 F501 RY101 TH501 C133 D126 CP501 L501 C132 C503 R177 C440 D125 D502 D501 C504 D503 D504 R502 CP502 R449 IC501 IC401 IC402 T401_1 C443 R427 C437 C418 D403 W002 W004 R433 R 5 1 5 R429_1 C507...

Page 18: ...647 R646 R645 R215 R613 R653 C645 R655 C647 R656 R663 R662 R661 R619 R651 R620 R652 R664 R665 R666 C654 C224 R213 R212 R217 R218 C648 I C 1 0 1 R128 R127 R142 R105 R106 R137 C129 C130 R134 R138 C109 C...

Page 19: ...0 022 M C101 0 01 Y C129 120P SL C130 120P SL C136 0 022 M X101 32 768KHz C102 2 2 50V KA TU001 ENV56D67G3 1 10 11 12 13 14 15 2 3 4 5 6 7 8 9 SW105 SKHVBED010 POWER SW104 SKHVBED010 VOL DOWN SW103 SK...

Page 20: ...20 2 2 50V KA C215 1 50V KA C646 1 50V KA C623 1000 6 3V YK C643 100 6 3V KA C652 100 6 3V KA C202 470 6 3V YK C635 0 22 50V KA C653 47 6 3V KA C624 3 3 50V KA C615 22 16V KA C201 0 01 B C611 0 01 M C...

Page 21: ...419 560 R416 1 1 2W R815 4 7K R816 4 7K R814 200 R813 4 7K R809 200 R806 2 7K 1 4W R804 2 7K 1 4W R802 2 7K 1 4W R420 22K R811 200 R403 18K R406 4 7K R404 2 7K R428 6 8 1 2W R421 220K 1 4W R445 180K 1...

Page 22: ...1 2 MS501 23MICA R515 1 5 3W R509 18K 1 W821 W818 DESCRIBED IN PARTS LIST ONLY CRITICAL FOR SAFETY USE ONES ARE SINCE THESE PARTS MARKED BY CAUTION DANS LA NOMENCLATURE DES PIECES N UTILISER QUE CELLS...

Page 23: ...16V KA C780 47 16V KA C352_1 100 35V MHE C351_1 3300 35V WA C357 4 7 50V MH7 C740 4 7 50V KA C731 0 33 50V KA C730 4 7 50V KA C709 4 7 50V KA C714 4 7 50V KA C716 4 7 50V KA C720 4 7 50V KA C708 4 7 5...

Page 24: ...AVEFORMS NOTE The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram 20V 20 s div 0 5V 20 s div 200mV 5ms div 200mV 20 s div 200mV 5ms div 4 CH...

Page 25: ...t of the corresponding balloon number in the schematic diagram WAVEFORMS 16 1V 20 s div 1V 20 s div 17 10V 5ms div 22 DEFLECTION CRT 18 0 5V 5ms div 10V 5ms div 23 20V 20 s div 50V 20 s div 24 2V 20 s...

Page 26: ...WAVEFORMS H 3 2V 1ms div 35 34 2V 1ms div 1V 1ms div 33 1V 1ms div 32...

Page 27: ...1 201 201 201 I 1 J801 PCB110 CRT PCB ASS Y 118 106 119 118 118 118 V801 119 119 119 L502 113 105 105 117 117 116 114 116 PCB010 MAIN PCB ASS Y 102 202 202 TU001 ATC001 204 202 103 115 105 204 104 120...

Page 28: ...114 7230006873 SHEET BRAND 115 759WPA0006 HOLDER ANODE WIRE 116 762WPA0007 HOLDER CRT WIRE 117 8994201000 HOLDER CRT WIRE 118 769WSA0009 WASHER CRT T 1 119 8111J50D04 SCREW TAPPING A GW22 5x40 120 HEA...

Page 29: ...250009 C418 E5EZF3102M CE 1000 UF 25V L601 021LA6150K COIL 15 UH C433 E02LT4471M CE 470 UF 35V L701 021673101K COIL 100 UH C434 E02LT8220M CE 22 UF 100V L704 021LA6220K COIL 22 UH C437 P411F3564J CMPP...

Page 30: ...51 070C533011 SPEAKER SA04A01DWA TH501 DF20G3R0Q0 DEGAUSS ELEMENT PTH451C460BG3R0Q140T TM101 076R074170 TRANSMITTER R25 1088 TU001 0145S00049 TUNER UHF VHF ENV56D67G3 V801 092T250501 COLOR PICTURE TUB...

Page 31: ...M3I0 02F A953512 SPEC NO O R NO...

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