Toshiba 27A43 User Manual Download

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SERVICE MANUAL

COLOR TELEVISION

27A43

FILE NO. 050-200311

DOCUMENT CREATED IN JAPAN, Mar., 2003

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Summary of Contents for 27A43

Page 1: ...SERVICE MANUAL COLOR TELEVISION 27A43 FILE NO 050 200311 DOCUMENT CREATED IN JAPAN Mar 2003 ...

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: ...EPLACING EEPROM MEMORY IC ELECTRICAL ADJUSTMENTS BLOCK DIAGRAMS PRINTED CIRCUIT BOARDS MAIN CRT SCHEMATIC DIAGRAMS MICON CHROMA DEFLECTION POWER SOUND TUNER STEREO AV CRT 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 G 10 ...

Page 4: ...H Destination USA W CATV 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 125 W at AC 120 V 60 Hz Stand by at AC 3 W at AC 120 V 60 Hz Per Year kWh Y...

Page 5: ...Off Timer Yes Color Stream DVD DTV Yes Control Level Yes Volume Yes Brightness Yes Contrast Yes Color Yes Tint NTSC Only 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 ...

Page 6: ... Yes CH Down 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 Ye...

Page 7: ...r Max Time 120 Min Yes Energy Star Yes 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 Safe...

Page 8: ...o Color 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 740 x 491 5 x 571 5 G 15 Weight Net Approx 37 0kg 81 6 lbs Gross Approx 41 0Kg 90 4 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 ...

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 be always 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: ...igit value 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 En...

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 35 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: ... 6 7 8 9 10 11 Receive the color bar pattern Connect the oscilloscope 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...

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: ...S LOCATION GUIDE WIRING CONNECTION D 5 CP803 CP801B CP802B CD802 CP806 R803 R805 TP024 TP022 J801 W003 TP003 VR502 CP101 CP801A FB401 J705 J706 J707 CP802A TU001 VR401 CD801 CRT CRT CP401 CP501 CD501 AC IN CRT L503 CP502 CP1001 SPEAKER CRT PCB MAIN PCB ...

Page 18: ...11 1 5 DY 7 F 10 V OUT FBP IN H OUT ACL B OUT G OUT R OUT FSC OUT CVBS1 18 17 SCL SDA 40 YUV IN H OUT Q402 Q405 BLOCK DIAGRAM 46 CVBS4 SOUND AMP IC IC1001 AN5276 SPEAKER SP1001 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 SWIT...

Page 19: ...W803 W136 W137 W130 C1005 W138 W072 W134 W060 C1518 C1510 L1505 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 D603 W162 W086 C638 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 W141 Q601 Q611 C6...

Page 20: ...004 R1010 C1010 C1012 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 R6...

Page 21: ...133 Q101 KTC3875S_Y_RTK LED SW Q103 KTC3875S_Y_RTK CLAMP SW IC199_1 S 24C16AFJA TB 01 MEMORY IC 1 2 3 4 5 6 7 8 X101_1 100CT8R005 8MHz SW101 EVQ21505R CH UP SW103 EVQ21505R VOL UP SW102 EVQ21505R CH DOWN SW104 EVQ21505R VOL DOWN SW105 EVQ21505R POWER D109 SLR 342VCT32 POWER ON CP101 173979 7 1 2 3 4 5 6 7 TM101 R25 1919 BT001 R03 AB E_20_T BT002 R03 AB E_20_T IC101 OEC7090A MICON IC 1 10 11 12 13 ...

Page 22: ...47 16V YK C602 47 16V YK C645 100 16V YK D611 SB290S D610 SB290S D607 1SS133 D606 1SS133 D605 1SS133 D601 1SS133 D608 11E1 EIC Q604 KTC3209_Y P CON 5V REG Q603 KTC3875S_Y_RTK 6dB AMP Q607 KTC3203_Y AT 5V REG Q606 KTC3209_Y P CON 5V REG Q605 KTC3875S_Y_RTK 6dB AMP Q611 KTC3209_Y P CON 8V REG Q601 KTC3209_Y P CON 8V REG Q602 KTC3209_Y P CON 5V REG X602 100CT3R505 3 579545MHz CP802A B2013H02 7P 1 2 3...

Page 23: ...V YK C430 22 100V YK C409 10 50V YK C403 22 50V YK C407 100 35V YK C426 22 250V MHE C413_1 1000 35V YK W836 W823 W853 W828 W827 D417 1SS133 D416 1SS133 D407 AU02A EIC D411 AU02A EIC D415 11E1 EIC D405 AU02A EIC D409 FE201 6L49 D408 ERD07 15L50 D414 11E1 EIC D402 11E1 EIC Q402 KTC3227_Y H DRIVE Q411 KTC3875S_Y_RTK BUFFER Q410 2SC4159 DRIVE R453 10K R422 680 1 2W R405 1K 1 4W R437 1 1 2W R443 150K 1...

Page 24: ...UE SECURITE LES PIECES REPAREES PAR UN ETANT ATTENTION R536 47K 1 4W R538 10K 1 4W R537 100K 1 4W R510 100 1 4W R547 100 1 4W R506 6 8K 1 4W R539 1 2M 1 4W R535 3 9K 1 4W R553 15K 1 2W R540 1 2M 1 4W R544 270 1 4W R516 10K R543_1 1K 1 2W R508 100 1 4W R512 1K 1 2W R500 2 7M 1 2W 10 R511 22K R519 10K R545 150 1 4W R533 270 R532 1 5K R554 100K 1 2W R513 10K R505 10K 1 4W R507 82K 1 4W R525 15K R524 ...

Page 25: ... 0 033 B C301 0 033 B C320 56P CH C322 56P CH C312 0 01 B C1005 220P B C1012 0 0047 B C1010 0 0047 B C334 1 B C311 0 1 B C315 0 1 B C303 0 01 B W831 W832 W835 W803 W858 W833 W834 C305 10 50V YK C318 10 50V YK C317 10 50V YK C319 10 50V YK C1004 1000 25V YK C1009 1000 25V YK C304 10 50V YK C333 10 50V YK C308 10 50V YK C316 10 50V YK C314 10 50V YK C1007 22 50V YK C1008 2 2 50V YK C1002 0 1 50V YK ...

Page 26: ... 220 1 4W R901 220 1 4W R902 56K 1 4W R905 56K 1 4W R903 39K R001 68K 1 2W R002 68K 1 2W R006 100 C912 0 022 B C908 0 022 B C911 0 047 B C913 0 1 B C917 0 1 B C915 0 1 B C918 0 1 B C002 0 1 B C005 0 1 F W812 W820 W819 W830 W829 D001 MTZJ33B C902 1 50V KA C901 1 50V KA TUNER 5V P CON 5V TUNER_VIDEO P CON B GND AFT P CON 8V B J_AUDIO_OUT_L J_AUDIO_OUT_R SW_AUDIO_L SW_AUDIO_R J_AUDIO_OUT_L J_AUDIO_OU...

Page 27: ...K R701 560 1 4W R702 220 1 4W R729 75 R726 1K R733 1K R727 75 R734 1K R728 1K R735 75 R739 75 R705 3 3K R706 3 3K R709 270 R725 75 R736 75 R730 75 R721 68 R708 1K R704 1K R745 1K R746 1K R724 75 C742 0 0056 B C736 0 0056 B C738 0 0056 B C725 1 B C722 1 B C735 0 0056 B C737 0 0056 B C727 1 B C724 1 B C734 0 1 B C719 1 B C720 1 B C741 0 0056 B C706 0 1 F D709 MTZJ6 2B D703 MTZJ12B D702 MTZJ12B D705 ...

Page 28: ... R811 4 7K R819 68 R816 390 R814 4 7K R818 68 R809 4 7K R813 390 R817 68 R802 2 7K 1 4W R806 2 7K 1 4W R804 2 7K 1 4W R801 220 R808 220 R810 220 R812 100 27 RED R820 100 27 GREEN R821 100 R824 100 1 2W C809 390P B C810 390P B C811 390P B C805 0 01 B C802 0 001 2KV B C801 100P B W802 C804 10 250V YK D802 1SS133 D801 1SS133 D803 1SS133 D812 1SS133 D810 1SS133 D811 1SS133 Q806 KTC4217 BLUE OUT Q801 K...

Page 29: ...09 47K R1523 100 C1521 0 1 B C1523 0 1 F C1509 0 01 B C1513 0 1 B C1517 100P CH C1519 0 1 B C1533 22P CH C1526 0 01 B C1531 0 01 B C1504 0 1 B C1505 1 B C1508 0 1 B C1515 0 1 B C1514 0 1 B C1516 0 1 B C1512 0 1 B C1506 0 1 B C1507 0 1 B C1503 0 1 B W848 C1530_1 47 16V KA C1510 100 6 3V YK C1532 100 16V YK C1525 100 6 3V YK C1528 100 16V YK C1535 10 16V KA C1501 100 6 3V YK C1502 100 6 3V YK C1518 ...

Page 30: ...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 31: ...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 32: ... 114 PCB110 CRT PCB ASS Y 114 MECHANICAL EXPLODED VIEW FOR USA I 1 PCB010 MAIN PCB ASS Y 204 204 116 205 206 102 206 201 201 201 201 201 203 112 111 117 115 115 201 201 106 104 203 203 101 110 108 105 113 110 107 203 109 203 110 ...

Page 33: ...4 114 114 PCB110 CRT PCB ASS Y 114 MECHANICAL EXPLODED VIEW FOR CANADA I 2 105 106 108 104 203 203 109 203 107 203 101 113 201 201 201 201 201 203 112 111 117 115 115 201 201 PCB010 MAIN PCB ASS Y 204 204 205 206 102 206 116 ...

Page 34: ...DE WIRE 117 AD301895 800WQ00055 FELT SHEET 118 AE000063 A3N403M740 CABINET BACK ASSY FOR CANADA ONLY 201 BZ710036 8117540B04 SCREW TAPPING B0 TRUSS 4x20 202 AD301625 8141J50D54 SCREW TAP TITE P GW20 5x45 203 BZ710031 8110630A04 SCREW TAP TITE P BRAZIER 3x10 204 BZ710239 8109I30A04 SCREW TAP TITE B WH7 3x10 205 BZ710019 8109630802 SCREW TAP TITE B BRAZIER 3x8 206 BZ710018 8107630804 SCREW TAP TITE ...

Page 35: ...62 P611T1104J CMPL 0 1 UF 100V TF or BZ110069 P613T1104J CMPL 0 1 UF 100V TF C425 BZ110182 C03L0R713K CC 0 001 UF 2KV R C426 AD300061 E5EZFD220M CE 22 UF 250V C442 AD301601 E53FF56R8M CE 6 8 UF 50V NP C501 BZ210176 E02LF3222M CE 2200 UF 25V C502 BZ110182 C03L0R713K CC 0 001 UF 2KV R C503 BZ110182 C03L0R713K CC 0 001 UF 2KV R C505 BZ110025 P2122B224M CMP 0 22 UF 275V ECQUL C506 BZ110035 P2122B104M ...

Page 36: ... ZENER MTZJ15B T 77 D604 AD300070 D97U01201B DIODE ZENER MTZJ12B T 77 D605 BZ410006 D1VT001330 DIODE SILICON 1SS133T 77 D606 BZ410006 D1VT001330 DIODE SILICON 1SS133T 77 D607 BZ410006 D1VT001330 DIODE SILICON 1SS133T 77 D608 BZ410043 D2WT011E10 DIODE SILICON 11E1 EIC D610 BZ410076 D2WXB290S0 DIODE SILICON SB290S D611 BZ410076 D2WXB290S0 DIODE SILICON SB290S D701 AD300070 D97U01201B DIODE ZENER MTZ...

Page 37: ...170 TRANSISTOR SILICON KTC4217 O Y Q806 BZ510091 TCA0042170 TRANSISTOR SILICON KTC4217 O Y Q901 BZ510108 TAAA1504SY TRANSISTOR SILICON KTA1504S_Y_RTK Q902 BZ510108 TAAA1504SY TRANSISTOR SILICON KTA1504S_Y_RTK Q1001 BZ510068 TNAAJ05003 COMPOUND TRANSISTOR KRC111SRTK Q1503 BZ510109 TCAA3875SY TRANSISTOR SILICON KTC3875S_Y_RTK Q1504 BZ510109 TCAA3875SY TRANSISTOR SILICON KTC3875S_Y_RTK Q1507 BZ510109...

Page 38: ...CP507 BZ614016 069W01001A CONNECTOR PCB SIDE 003P 2100 CP508 BZ614016 069W01001A CONNECTOR PCB SIDE 003P 2100 CP803 BZ614269 069S320010 CONNECTOR PCB SIDE A2361WV2 2P 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 067U00...

Page 39: ...TOSHIBA CORPORATION 1 1 SHIBAURA 1 CHOME MINATO KU TOKYO 105 8001 JAPAN ...

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