Toshiba 32A14, Service Manual

Page 1: ...SERVICE MANUAL COLOR TELEVISION 32A14 FILE NO 050 200404 ...

Page 2: ...which has the same character Especially as to the important parts for safety which is indicated in the circuit diagram or the table of parts as a mark the designated parts must be used 4 PUT PARTS AND WIRES IN THE ORIGINAL POSITION AFTER ASSEMBLING OR WIRING There are parts which use the insulation material such as a tube or tape for safety or which are assembled in the condition that these do not...

Page 3: ...ELECTRICAL ADJUSTMENTS BLOCK DIAGRAMS PRINTED CIRCUIT BOARDS MAIN CRT STEREO JACK SCHEMATIC DIAGRAMS MICON CHROMA DEFLECTION POWER SOUND TUNER STEREO AV CRT COMB FILTER AV JACK WAVEFORMS MECHANICAL EXPLODED VIEWS MECHANICAL REPLACEMENT PARTS LIST ELECTRICAL REPLACEMENT PARTS LIST A1 1 A1 1 A1 1 A2 1 A3 1 A3 5 B1 1 B2 1 B2 2 C1 1 C1 1 C1 1 D 1 D 5 E 1 E 2 F 1 F 4 G 1 G 2 G 3 G 4 G 5 G 6 G 7 G 8 G 9...

Page 4: ...TV Tuning System F Synth Input 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 75MHz Frequency Sound FS 41 25MHz FP FS 4 50MHz Preset CH No Stereo Dual TV Sound Yes Tuner Sound Muting Yes G 3 Power Power Source AC 120V AC 60Hz DC Power Consumption at AC 130 W at AC 120 V 60 Hz Stand by at AC 3 W at AC 120 V 60 Hz Per Year kWh Year Protector Power Fu...

Page 5: ...s On Off Timer Yes Color Stream DVD DTV Yes Control Level Yes Volume Yes Brightness Yes Contrast Yes Color Yes Tint Yes Sharpness Yes Tuning No Bass Yes Treble Yes Balance Yes Back Light No Stereo Audio Output SAP Yes Video Yes Color Stream Yes Channel TV Cable Yes CH Label Yes Game Timer Yes Sleep Timer Yes Sound Mute Yes V chip Rating Yes 16 9 No G 8 OSD Language English French Spanish G 9 Clock...

Page 6: ... Yes Volume Up Yes Volume Down Yes TV Caption Text Yes CH1 CH2 Yes TV Video TV AV Yes CH RTN CH ENT Quick View Yes Sleep Yes RE Call Call Yes Reset Yes Menu Enter Yes Mute Yes Exit Yes MTS Audio Select Yes Fav Up Yes Fav Down Yes 16 9 No Multi Brand Keys CH Up VCR Yes CH Down VCR Yes Pause Still Yes TV VCR VCR Yes FF Yes Rew Yes Rec Yes Play Yes Stop Yes TV Yes VCR Yes Cable Yes DVD Yes CODE Yes V...

Page 7: ...ime 120 Min Yes Energy Star No Favorite CH Yes Surround Yes 16 9 Mode No 2 Tuner P in P No G 12 Accessories Owner s Manual Language English French W Warranty Yes Remote Control Unit Yes Rod Antenna No Poles Terminal Loop Antenna No Terminal U V Mixer No DC Car Cord Center No Guarantee Card No Warning Sheet No Circuit Diagram No Antenna Change Plug No Service Facility List No Important Safety Instr...

Page 8: ... Stream RCA x 3 Diversity No Ext Speaker No DC Jack 12V Center No VHF UHF Antenna Input F Type AC Outlet No G 14 Set Size Approx W x D x H mm 751 x 552 x 658 5 G 15 Weight Net Approx 52 0kg 114 7 lbs Gross Approx 58 0Kg 127 9 lbs G 16 Carton Master Carton No Content Sets Material Dimensions W x D x H mm x x Description of Origin No Gift Box Yes Material Double Brown Dimensions W x D x H mm 840 x 6...

Page 9: ...ed Flip up the sides of the Rubber Cap in the direction of the arrow and remove one side of the support Refer to Fig 1 2 2 DISASSEMBLY INSTRUCTIONS GND on the CRT Screwdriver Alligator Clip Support CRT GND on the CRT Rubber Cap CRT Support Fig 1 1 Fig 1 2 3 After one side is removed pull in the opposite direction to remove the other NOTE Take care not to damage the Rubber Cap INSTALLATION 1 Clean ...

Page 10: ...using a blower type IC desoldering machine Refer to Fig 2 2 2 Fig 2 2 NOTE Do not add the rotating and the back and forth directions force on the IC until IC can move back and forth easily after desoldering the IC leads completely When IC starts moving back and forth easily after desoldering completely pickup the corner of the IC using a tweezers and remove the IC by moving with the IC desoldering...

Page 11: ...2 8 Thin tip Soldering Iron NOTE When the IC leads are bent during soldering and or repairing do not repair the bending of leads If the bending of leads are repaired the pattern may be damaged So always be sure to replace the IC in this case Finally confirm the soldering status on four sides of the IC using a magnifying glass Confirm that no abnormality is found on the soldering position and insta...

Page 12: ...e 16 x 16 x hundreds digit value 16 x tens digit value ones digit value C 1 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 to ensure correct data settings while making reference to TABLE 1 Table 1 1 2 3 4 5 6 7 8 9 10 11 The unit will now have the correct DATA for the new MEMORY IC Enter DATA ...

Page 13: ...2 Press the MENU button on the remote control to end the adjustments FUNCTION OSD H CUT OFF H VCO H PHASE AFC GAIN V SHIFT H SIZE V SIZE V LINEARITY VS CORRECTION DRIVE R DRIVE B R CUT OFF G CUT OFF B CUT OFF BRIGHT MAX BRIGHT CENT BRIGHT MIN CONTRAST MAX NO 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 Fig 1 2 NO 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 88 TV 00 OSD 30 2 4 FO...

Page 14: ...the remote control to adjust it until the audio output wave becomes a fine sine wave Press the CH UP button once the set to SEP 2 mode Then perform the above adjustment 4 Method 1 1 2 3 4 5 6 7 8 9 Set the multi sound signal generator L ch 1KHz R ch Non input and receive the RF Connect the oscilloscope to the Audio Out Jack R ch Press the AUDIO SELECT button on the remote control to set to the ste...

Page 15: ...illoscope to TP024 Activate the adjustment mode display of Fig 1 1 and press the channel button 24 on the remote control to select TINT Press the VOL UP DOWN button on the remote control until 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 and press the channel button 22 on the remote control to select COL C...

Page 16: ...performing 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 magnets so the color at the ends are equally wide Move the deflection yoke backward to neck side slowly and stop it at the position when the whole screen is green Confirm red and blue color Adjust the...

Page 17: ...DE WIRING CONNECTION D 5 CP805 CP801B CP802B CD802 CP806 R803 R805 TP024 TP022 J801 W003 TP003 VR502 CP101 CP801A FB401 CP802A TU001 VR401 CD801 CRT CRT CP401 CP501 CD501 AC IN CRT L503 CP502 CP1001 SPEAKER CRT PCB MAIN PCB CD701 J704 J703 J702 CP701 STEREO JACK PCB ...

Page 18: ... ACL B OUT G OUT R OUT FSC OUT CVBS1 18 17 SCL SDA 40 YUV IN H OUT Q402 Q405 32A14 BLOCK DIAGRAM 46 CVBS4 SOUND AMP IC IC1001 AN17808B SPEAKER 2 5 L 12 R 7 11 SDA1 31 AFT 5 S_IN 10 13 12 11 19 14 44 48 53 VIDEO 3 Y IN U IN V IN 11 21 18 3 S INPUT 3 30 24 23 3 2 L R L R A V OUT AUDIO 3 AUDIO 1 2 R L FBT FB401 SOUND B B 180V 25V 10 15 5 T501 6 3 HV 1 7 9 F 10 S SWITCHING Q502 IC504 LTV 817M VB FEED ...

Page 19: ...5 L1503 L1502 L1508 C1520 C1501 C1502 L1511 C1528 L1510 C1525 W156 W858 W166 W077 W076 C001_1 L1501 C1532 W146 W145 C642 C605 D602 D601 R603 W162 X602 C630 C627 C622 Q607 W075 W058 W070 W073 W108 W107 W030 C621 W061 W069 C618 W067 W090 C611 Q606 Q604 Q602 C610 R649 C603 W059 R616 W151 W150 W147 W144 W173 Q601 Q611 C602_1 R601 C606 W172 W082 R132 W029 W103 W096 W113 W805 W168 L1512 R626 R623 W097 W...

Page 20: ...12 Q709 R709 R006 IC1503 IC1502 C1512 C1516 R1529 R1528 R1505 Q1503 C1513 C1517 R1506 R1507 C1519 C1509 C1515 C1504 R1504 C1514 R1503 C1506 C1507 IC1501 C1503 R1502 C1521 C1508 R1508 Q1504 R1509 R1510 C1531 Q1508 R1530 C1505 Q1507 R1516 C1526 R1518 R1519 C1523 C641 R1520 C1533 R632 C136 C137 C138 C632 R618 C631 C624 C614 R610 C607 R617 C640 R628 Q603 R604 R625 R1523 R609 R629 R622 R634 R620 C612 C...

Page 21: ...e corresponding balloon number in the schematic diagram NOTE 2 1V 1µs div 3 1V 50µs div 4 1V 0 1ms div CHROMA 7 1V 20µs div 8 0 5V 10ms div 9 1V 50µs div 10 2V 20µs div 12 1V 2µs div 11 0 5V 20µs div 13 1V 20µs div 14 2V 20µs div 15 2V 20µs div 16 2V 5ms div DEFLECTION 17 20V 5ms div H 1 ...

Page 22: ...on number in the schematic diagram NOTE 18 10V 10ms div 19 20V 20µs div 20 2V 20µs div 21 200V 50µs div 37 50V 20µs div 38 50V 20µs div 39 50V 20µs div SOUND 22 2V 5ms div 23 2V 5ms div 24 2V 5ms div 25 2V 5ms div 26 5V 2ms div 27 5V 2ms div 28 200mV 20µs div 29 200mV 20µs div AV CRT H 2 ...

Page 23: ...10 PCB010 MAIN PCB ASS Y 204 204 108 205 206 103 206 113 114 203 101 101E 207 101F 101F 101G 101G 207 101A 101C 101B 101D 101H 106 208 111 203 PCB280 STEREO JACK PCB ASS Y 203 101H 101H 101H 111 208 209 112 101I 101I 203 201 201 201 102A 201 105 201 201 201 102B 102B 102B 201 201 201 201 102 ...

Page 24: ...MECHANICAL EXPLODED VIEW PACKING DIAGRAM I 2 115 117 117 121 122 123 124 TM101 116 119 118 118 ...

Page 25: ...1410 752WSAA060 ANGLE CRT L 111 BZ710039 8995034000 CORD CLIP UL CO 112 AE003189 752WSAA062 ANGLE FRONT 113 AE003190 800WQ0A067 FELT SHEET 114 AE003069 800WQ0A070 FELT SHEET 115 AE003191 723000C493 SHEET BAR CODE 116 AE000636 791WHA0102 LAMIFILM BAG 117 AE000637 792WHA0464 PACKAGE TOP 118 AE000638 792WHA0465 PACKAGE BOTTOM 119 AE003192 793WCDC091 GIFT BOX 120 AE003193 A3N510W975 INSTRUCTION BOOK K...

Page 26: ...30 BZ110195 E02LU8220M CE 22 UF 100V C442 AD301601 E53FF56R8M CE 6 8 UF 50V NP C501 AD300067 E02LF4102M CE 1000 UF 35V C502 BZ110202 C0PLRR713K CC 0 001 UF 2KV R C503 BZ110202 C0PLRR713K CC 0 001 UF 2KV R C505 BZ110025 P2122B224M CMP 0 22 UF 275V ECQUL C506 BZ110035 P2122B104M CMP 0 1 UF 275V ECQUL C507 BZ110248 E52DGC471M CE 470 UF 200V C508 AD301108 CD39E0MH3M CC 0 0022UF 250V C513 AD301026 CD39...

Page 27: ...IODE SILICON 1SS133T 77 D608 BZ410043 D2WT011E10 DIODE SILICON 11E1 EIC D701 AD300070 D97U01201B DIODE ZENER MTZJ12B T 77 D702 AD300070 D97U01201B DIODE ZENER MTZJ12B T 77 D703 AD300070 D97U01201B DIODE ZENER MTZJ12B T 77 D704 AD300070 D97U01201B DIODE ZENER MTZJ12B T 77 D705 AD300070 D97U01201B DIODE ZENER MTZJ12B T 77 D709 BZ410066 D97U06R21B DIODE ZENER MTZJ6 2B T 77 D801 BZ410006 D1VT001330 DI...

Page 28: ...N KTC3875S_Y_RTK Q1504 BZ510109 TCAA3875SY TRANSISTOR SILICON KTC3875S_Y_RTK Q1507 BZ510109 TCAA3875SY TRANSISTOR SILICON KTC3875S_Y_RTK Q1508 BZ510109 TCAA3875SY TRANSISTOR SILICON KTC3875S_Y_RTK COILS TRANSFORMERS L301 BZ310041 02167F101J COIL 100 UH L402 AE000617 022100031A COIL LINEARITY ELH5L7120N L403 AD301606 02DK000058 COIL CHOKE 02DK000058 L501 AD301124 029T000101 COIL LINE FILTER 2R2A752...

Page 29: ...NNECTOR PCB SIDE A2361WV2 2P CP806 BZ614058 069W010010 CONNECTOR PCB SIDE 005P 2100 CD1001 AE000620 06CH144704 CORD CONNECTOR CH144704 CP1001 AD301045 069S140419 CONNECTOR PCB SIDE A2502WV2 4P CP801A BZ614276 067U005049 WIRE HOLDER B2013H02 5P CP801B BZ614276 067U005049 WIRE HOLDER B2013H02 5P CP802A AD301997 067U007029 WIRE HOLDER B2013H02 7P CP802B AD301997 067U007029 WIRE HOLDER B2013H02 7P EL0...

Page 30: ...TOSHIBA CORPORATION 1 1 SHIBAURA 1 CHOME MINATO KU TOKYO 105 8001 JAPAN ...