Toshiba 14AF43, Service Manual

Page 1: ...SERVICE MANUAL COLOR TELEVISION 14AF43 FILE NO 050 200307 DOCUMENT CREATED IN JAPAN Apr 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: ...PROM MEMORY IC ELECTRICAL ADJUSTMENTS BLOCK DIAGRAMS PRINTED CIRCUIT BOARDS MAIN CRT SCHEMATIC DIAGRAMS MICON CHROMA DEFLECTION CRT POWER SOUND TUNER STEREO AV CRT COMB FILTER 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: ... CH 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 80 W at AC 120 V 60 Hz Stand by at AC 3 W at AC 120 V 60 Hz Per Year kWh ...

Page 5: ... 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 Yes G 8 OSD Language English French Spanish G 9 Clock and Sl...

Page 6: ...s CH Down Yes Volume Up Yes Volume Down Yes C C TV Caption Text Yes CH1 CH2 Yes TV Video Input Select Yes CH RTN Quick View Yes SLEEP Yes RECALL Call Yes Reset Yes Menu Enter Yes Mute Yes Exit Yes MTS Audio Select Yes Fav Up Yes Fav Down Yes 16 9 Yes 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 Y...

Page 7: ...s Game Timer Max Time 120 Min Yes Energy Star Yes Favorite CH Yes Surround Yes 16 9 Mode Yes 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 Station List No Important Safety Inst...

Page 8: ... 2 Euro Scart No Color Stream RCA x 3 S Input Yes 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 432 x 386 x 344 5 G 15 Weight Net Approx 11 0kg 24 3 lbs Gross Approx 13 0 kg 28 7 lbs G 16 Carton Master Carton No Content Sets Material Dimensions W x D x H mm x x Description of Origin Gift Box Yes Material Double Brown D...

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: ...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: ... button 01 on the remote control to select CUT OFF Adjust the Screen Volume until a dim raster is obtained 2 3 WHITE BALANCE NOTE Adjust after performing CUT OFF adjustment 1 2 3 4 5 6 7 Place the set with Aging Test for more than 10 minutes Receive the gray scale pattern from the Pattern Generator Using the remote control set the brightness and contrast to normal position Activate the adjustment ...

Page 14: ...n perform the above adjustments 1 3 Press the TV VIDEO button on the remote control to set to the CS mode Then perform the above adjustments 1 3 2 10 TINT COLOR CENT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Fig 2 1 Receive the color bar pattern RF Input Connect the oscilloscope to TP024 Using the remote control set the brightness contrast color and tint to normal position Activate the adjustment mod...

Page 15: ...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 stereo mode Activate the adjustment mode display of Fig 1 1 and press the channel button 34 on the remote control to select SEP 1 Press the VOL UP DOWN button on the remote control to adjust it u...

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: ...ARTS LOCATION GUIDE WIRING CONNECTION D 5 CP803 CP801B CP802B CD802 CP806 R803 R805 TP024 TP023 J801 W003 TP003 VR502 CP101 CP801A FB401 J705 J706 J707 CP802A TU001 VR401 CD801 CRT CRT CP401 AC IN CP1001 SPEAKER CRT PCB MAIN PCB CRT L503 CP502 CD501 ...

Page 18: ...M C OUT Y OUT Y IN 4 2 VIDEO SW Y IC IC1502 MM1501XNRE Vin1 Vin2 V OUT 2 VIDEO SW C IC IC1503 MM1501XNRE 6 4 6 Vin1 Vin2 V OUT 3 S JACK J702 4 LINE1 REAR J701 6 LINE2 REAR J703 6 FRONT VIDEO J705 2 5 YUV_IN REAR J704 3 2 2 SOUND DECORDER IC IC902 AN5829S 24 14 23 3 6 4 2 AUDIO SW L IC IC702 MM1501XNRE Vin1 Vin2 V OUT FRONT AUDIO L J706 FRONT AUDIO R J707 2 3 2 3 2 6 4 2 AUDIO SW R IC IC701 MM1501X...

Page 19: ...001 R1009 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 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 R6...

Page 20: ... R1004 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...

Page 21: ...FJA TB 01 MEMORY IC 1 2 3 4 5 6 7 8 X101_1 100CTR8005 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 1911 BT001 R03 AB E_2P_G BT002 R03 AB E_2P_G Vout B GND OS101 RPM7138 H5 1 2 3 IC101 OEC7090A MICON IC 1 10 11 12 13 14 15 16 17 18 19 2 20 21 22 23 24 25 26 2...

Page 22: ...50V KA C603 47 16V YK C645 100 16V YK C602 47 16V YK D601 1SS133 D608 11E1 EIC D605 1SS133 D606 1SS133 D607 1SS133 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 Q602 KTC3209_Y P CON 5V REG Q604 KTC3209_Y P CON 5V REG Q601 KTC3209_Y P CON 8V REG X602 100CT3R505 3 579545MHz CP802A B2013H02 7P 1 2 3 4 5 6 7 VID...

Page 23: ...DITION AND PICTURE IS NORMAL WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST NOTE THE DC VOLTAGE AT EACH PART WAS MEASURED R424 820 1 2W R415 820 R409_1 1K R443 150K 1 2W R420 2 2 1 2W R417 33K R404 100 R430 150K 1 2W R418 560 1 2W R406 470 1 2W R437 1 1 2W R401 4 7K R407 1 2K R428 100 1 4W R453 10K R432 8 2K 1 2W R429 680 1 2W R433 680 1 2W R421 680 1 2W R422 560 1 2W R416 5 6 1 2W R403 1K C427 ...

Page 24: ...STER WHEN THE COLOR BROADCAST NOTE THE DC VOLTAGE AT EACH PART WAS MEASURED R535 3 9K 1 4W R553 6 8K 1 2W R540 1 2M 1 4W R539 1 2M 1 4W R510 100 1 4W R516 10K R508 100 1 4W R512 1K 1 2W R500 2 7M 1 2W 10 R511 22K R545 150 1 4W R533 270 R554 100K 1 2W R506 6 8K 1 4W R513 10K R505 10K 1 4W R507 82K 1 4W R547 100 1 4W R536 47K 1 4W R525 15K R524 3 3K 1 4W R515 10K 1 4W R520 1 5M 1 2W R546 100 1 4W R5...

Page 25: ...RED R1002 270 1 2W R1001 270 1 2W R1009 10K 1 4W R314 220K R1011 6 8K R1004 15K R1003 15K R1013 10K R303 100 1 4W R304 100 1 4W R1010 6 8K R302 2 7K 1 4W R301 2 7K 1 4W C320 56P CH C322 56P CH C301 0 033 B C312 0 01 B C1005 220P B C334 1 B C311 0 1 B C315 0 1 B C303 0 01 B C310 0 033 B C313 0 01 B C307 0 015 B C309 0 039 B C1012 0 0039 B C1010 0 0039 B W847 W831 W832 W803 W858 W857 C333 10 50V YK ...

Page 26: ... R006 100 R001 68K 1 2W R002 68K 1 2W R904 220 1 4W R905 56K 1 4W 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 C005 0 1 F C002 0 1 B W812 W829 W830 W820 W819 D001 MTZJ33B C902 1 50V KA C901 1 50V KA C919 10 50V YK TUNER 5V TUNER_VIDEO P CON 8V B P CON 5V P CON B GND AFT SCL SDA J_AUDIO_OUT_L J_AUDIO_OUT_R SW_AUDIO_L SW_AUDIO_R J_AUDIO_OUT_L J_AUDIO_OUT_R AUDIO...

Page 27: ...EASURED R703 2 2K R724 100 R701 22 1 4W R702 22 1 4W R729 75 R726 1K R733 1K R727 75 R734 1K R728 1K R739 75 R705 3 3K R706 3 3K R709 270 R725 75 R736 75 R730 75 R708 1K R711 1K R710 1K 1 4W R704 1K R735 75 R721 68 R745 1K R746 1K 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 C706 0 1 F C741 0 0056 B C742 0 0056 B C719 1 B C720 1 B D703 MTZJ...

Page 28: ...220 R809 4 7K R813 390 R817 220 R802 2 7K 1 4W R806 2 7K 1 4W R804 2 7K 1 4W R801 220 R808 220 R810 220 R823 100 14F GREEN R821 100 R815 390 R811 4 7K R824 100 1 2W R822 100 14F RED C810 470P B C811 470P B C805 0 1 B C802 0 001 2KV B C801 100P B C809 560P B W802 C804 10 250V YK D802 1SS133 D801 1SS133 D803 1SS133 D812 1SS133 D810 1SS133 D811 1SS133 Q806 KTC4217 BLUE OUT Q801 KTC3199_Y RED GREEN OU...

Page 29: ... 1 B C1509 0 01 B C1513 0 1 B C1517 100P CH C1519 0 1 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 C1526 0 01 B C1533 22P CH C1523 0 1 F W848 C1510 100 6 3V YK C1528 100 16V YK C1501 100 6 3V YK C1502 100 6 3V YK C1518 1 50V KA C1520 100 6 3V YK C1525 100 6 3V YK C1530 47 16V YK C1535 10 16V KA Q1508 KTC3875S_Y...

Page 30: ... 5µs 1V 5ms 200mV 5ms 5V 5ms 10V 22 1ms 50mV 1ms 200mV 23 1ms 100mV 24 1ms 100mV 25 4 50µs 1V 20µs 50V 19 20µs 2V 20 21 20µs 200V The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram NOTE DEFLECTION SOUND ...

Page 31: ...ms 5V 27 20µs 200mV 29 20µs 50V 37 20µs 200mV 28 20µs 50V 38 20µs 50V 39 WAVEFORMS The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram NOTE AV CRT ...

Page 32: ... 1 101 101A 101B 101C 101D 101H 101E 101G 101I 205 205 205 107 101I 101E 101F 202 202 202 202 105 203 111 111 111 204 110 102 104 103 PCB110 CRT PCB ASS Y 201 201 201 108 201 106 PCB010 MAIN PCB ASS Y 206 109 207 208 208 206 207 ...

Page 33: ...Z710260 899HV3T000 HOLDER ANODE WIRE 110 AD301154 726000A031 SHEET CRT NO 111 AD300134 800WQ00039 FELT SHEET 201 BZ710383 8121J50C04 SCREW TAPPING B0 GW15 5x30 202 BZ710035 8117540A64 SCREW TAPPING B0 TRUSS 4x16 203 BZ710262 8117540A04 SCREW TAPPING B0 TRUSS 4x10 204 BZ710031 8110630A04 SCREW TAP TITE P BRAZIER 3x10 205 BZ710030 8110630804 SCREW TAP TITE P BRAZIER 3x8 206 BZ710239 8109I30A04 SCREW...

Page 34: ...426 AD300061 E5EZFD220M CE 22 UF 250V C430 BZ110195 E02LU8220M CE 22 UF 100V C501 BZ110053 E02LF3102M CE 1000 UF 25V C502 BZ110202 C0PLRR713K CC 0 001 UF 2KV R C503 BZ110202 C0PLRR713K CC 0 001 UF 2KV R C504 AD301729 E02LU52R2M CE 2 2 UF 50V C505 BZ110025 P2122B224M CMP 0 22 UF 275V ECQUL C506 BZ110035 P2122B104M CMP 0 1 UF 275V ECQUL C507 AD301635 E51CGC331M CE 330 UF 200V C508 AD301108 CD39E0MH3...

Page 35: ...ENER 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 D706 AD300070 D97U01201B DIODE ZENER MTZJ12B T 77 D709 BZ410066 D97U06R21B DIODE ZENER MTZJ6 2B T 77 D801 BZ410006 D1VT001330 DIODE SILICON 1SS133T 77 D802 BZ410006 D1VT001330 DIODE SILICON 1SS133T 77 D803 BZ410006 D1VT001330 DIODE ...

Page 36: ... COIL LINEARITY ELH5L4112N L501 AD300119 029T000097 COIL LINE FILTER 1R5A123F28Y L503 BZ310116 028R140023 COIL DEGAUSS 8R140023 L901 BZ310041 02167F101J COIL 100 UH L1501 BZ310041 02167F101J COIL 100 UH L1502 AD301417 02167F221J COIL 220 UH L1503 AD301417 02167F221J COIL 220 UH L1505 AD300613 02167F150J COIL 15 UH L1508 BZ310041 02167F101J COIL 100 UH L1510 AD300613 02167F150J COIL 15 UH L1511 AD3...

Page 37: ... 067U005049 WIRE HOLDER B2013H02 5P CP802A AD301997 067U007029 WIRE HOLDER B2013H02 7P CP802B AD301997 067U007029 WIRE HOLDER B2013H02 7P EL001 BZ614044 124120301A EYE LET XRY20X30BD EL002 BZ614043 124116281A EYE LET XRY16X28BD F501 AD301046 081PC6R305 FUSE 51MS063L FB401 AD301151 043214035F TRANSFORMER FLYBACK FQI 14B003F FH501 BZ614005 06710T0006 HOLDER FUSE EYF 52BC FH502 BZ614005 06710T0006 HO...

Page 38: ...TOSHIBA CORPORATION 1 1 SHIBAURA 1 CHOME MINATO KU TOKYO 105 8001 JAPAN ...