Toshiba 27AF53 Service Manual Download

Page: 43 / 43

TOSHIBA CORPORATION

1-1, SHIBAURA 1-CHOME, MINATO-KU, TOKYO 105-8001, JAPAN

Summary of Contents for 27AF53

Page 1: ...SERVICE MANUAL COLOR TELEVISION 27AF53 FILE NO 050 200314 DOCUMENT CREATED IN JAPAN May 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: ...ENTS BLOCK DIAGRAMS PRINTED CIRCUIT BOARDS MAIN CRT VM COIL COMB AV SCHEMATIC DIAGRAMS MICON CHROMA DEFLECTION CRT POWER SOUND TUNER STEREO AV REGULATOR CRT SVM COMB FILTER 6DB AMP 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 F 5 F 6 G 1 G 2 G 3 G 4 G 5 G 6...

Page 4: ...e 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 135 W at AC 120 V 60 Hz Stand by at AC 3 W at AC 120 V 60 Hz Per Year kW...

Page 5: ...CH Label Yes Favorite CH Yes V Chip Yes Lock Yes On Off Timer Yes Color Stream DVD DTV Yes Image Tilt Yes Control Level Yes Volume Yes Brightness Yes Contrast Yes Color Yes Tint Yes Sharpness Yes Tuning No Bass Yes Treble Yes Balance Yes Image Tilt Yes 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 Ratin...

Page 6: ...CH Up Yes CH Down Yes Volume Up Yes Volume Down Yes TV Video Input Select Yes ENT CH RTN Quick View Yes Menu FAV Up Yes Menu FAV Down Yes Menu Up Yes Menu Down Yes Mute Yes PIC SIZE 16 9 Yes Light Yes Multi Brand Keys TV CBL SAT VCR DVD Yes DVD Keys Enter Yes TV DVD Keys SLEEP TOP MENU Yes RECALL Call Display Yes Menu Enter DVD MENU Yes Exit DVD CLEAR Yes DVD VCR Keys Pause Still Yes FF Yes Rew Ye...

Page 7: ...Yes Energy Star Yes Favorite CH Yes Surround Yes 16 9 Mode Yes Color Temparature Control Yes Picture Preference Yes Tilt Correction Yes 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...

Page 8: ...CA x 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 740 x 495 x 574 5 G 15 Weight Net Approx 40 0 kg 88 2 lbs Gross Approx 46 5kg 102 5lbs 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 ...

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: ...9 10 11 12 13 14 15 Fig 1 2 NO 31 32 33 34 35 51 52 53 54 55 56 57 58 59 60 TV 00 OSD 27 2 3 WHITE BALANCE NOTE 2 2 CUT OFF 1 2 3 Place the set with Aging Test for more than 15 minutes Activate the adjustment mode display of Fig 1 1 and press the channel button 01 on the remote control to select CUT OFF Adjust the Screen Volume until a dim raster is obtained FUNCTION BRIGHT CENT BRIGHT MIN CONTRAS...

Page 14: ... button on the remote control to adjust it until the R ch output becomes minimum Set the multi sound signal generator L ch Non input R ch 1KHz and receive the RF Connect the oscilloscope to the Audio Out Jack L ch Activate the adjustment mode display of Fig 1 1 and press the channel button 35 on the remote control to select SEP 2 Press the VOL UP DOWN button on the remote control to adjust it unti...

Page 15: ...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 16 TINT COLOR CENT 1 2 3 4 5 6 7 8 9 10 11 Receive the color bar pattern Connect the oscilloscope to TP806 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 ...

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: ...J1001 J705 J706 J707 CP1001 OS101 CP851A VR401 J701 J703 J708 SPEAKER CRT FB401 TU001 CP501 AC IN CD501 CRT CP852B CP803 CP804 TP806 TP804 R808 R804 CP852 CP851B CP802B CP801B J801 CRT CRT PCB VM COIL PCB MAIN PCB CD803 CD852 CD802 CD851 CD1001 CP401 J709 COMB PCB CP802A CRT CD801 AV PCB S791A S793A S790A S792A S790 S791 S792 S793 CP403 ...

Page 18: ...Yin Q803 Q812 Q802 Q811 GREEN AMP Q801 Q810 BLUE AMP RED AMP REAR S JACK J702 3 FRONT S JACK J709 4 3 4 LINE1 J701 6 3 2 LINE2 J703 6 3 2 A V_OUT J708 6 3 2 FRONT VIDEO J705 2 3 YUV_IN J704 5 FRONT AUDIO L J706 2 3 FRONT AUDIO R J707 2 3 Q702 BUFFER Q703 BUFFER Q1513 Q5111 Q1510 BUFFER Y IN C IN H OUT V OUT R OUT G OUT B OUT R IN B IN G IN FAST BLK Q701 Q709 BUFFER Q1503 Q1505 Q1507 Q1514 BUFFER B...

Page 19: ...25 R404 C507 R503 D524 R545 C642 W049 C605 D602 D601 R603 R610 R639 C602 C606 D604 W050 C609 C615 R608 C629 W051 W052 W053 D701 W054 W055 W056 W057 R616 R642 R601 Q601 Q611 Q604 Q602 Q606 C610 W058 W059 W060 W061 W062 W063 R604 W064 W065 W066 W067 W068 W069 W070 W071 W072 J708 J703 J701 D704 D709 J702 J704 W073 W074 W075 C533 W076 W077 W078 C711 W079 W080 C707 C728 W081 W082 W083 W084 D703 D702 W0...

Page 20: ...2 R143 R141 R142 Q506 R518 Q515 R509 I C 6 0 1 C632 R618 C631 C611 C624 C608 C619 C617 C614 C641 R627 R628 C613 C620 C621 R622 R625 R629 R419 R423 R425 R435 R440 R409 C414 R634 C635 Q605 R633 C634 R431 C120 R620 R623 R626 R605 R606 R607 C633 C626 R630 R624 Q603 R619 R631 C627 R621 R613 C601 Q608 R638 C604 R609 C612 C616 R611 R641 R635 R636 R612 C636 C628 R719 R713 R617 C607 R313 C737 R739 R735 Q51...

Page 21: ...B853 C858 C859 Q858 Q859 HS851 CP852B S851 S852 C821_1 R814 R813 R810 R815 R809 R811 C804 R817 C806 R821 R819 C805 R812 R862 R863 R864 C857 R858 R861 R860 C855 R854 C856 R859 R856 R853 CP852 W806 R855 D804 D805 W001 D807 D809 W805 W007 CP851B CP802B CP801B D808 W008 W811 W003 C809 D806 R803 R822 W820 R820 C 8 0 8 W804 W810 W802 PRINTED CIRCUIT BOARDS CRT VM COIL SOLDER SIDE COMB TOP SIDE SOLDER SI...

Page 22: ... R134 10K R117 4 7K R124 1K 1 4W R121 1K R122 1K R150 1K R133 1K R125 10K 1 4W R107 10K 1 4W R119 10K R115 4 7K R143 680 R142 680 R141 680 WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST NOTE THE DC VOLTAGE AT EACH PART WAS MEASURED OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE NOTE THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME J_AUDIO_OU...

Page 23: ...R620 100 R626 100 R631 270 R633 4 7K R634 4 7K R621 3 3K R613 10K R608 3 3K 1 4W R630 560 R619 15K R624 1K WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST NOTE THE DC VOLTAGE AT EACH PART WAS MEASURED OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE NOTE THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME V_IN YUV U_IN YUV Y_IN YUV C_V_OUT_SW Y_V_...

Page 24: ...YK C422 2 2 50V YK D412 MTZJ15B D401 MTZJ15B D403 MTZJ30B D410 MTZJ30B D406 MTZJ5 6B D404 MTZJ5 1B D417 MTZJ12B W806 W828 W837 W805 W833 W808 W842 C425 0 001 2KV R C427 0 1 100V MMTS C414 0 33 B C418 0 4 250V PMS C421 0 018 630V PP C412 0 0022 1 5KV MPP C420 0 013 1 25KV MPP C416 0 001 B C401 27P 500V SL C417 0 22 100V MMTS C402 0 01 100V MMTS C439 0 001 B C410 0 0022 500V B C415 100P 500V B C419 ...

Page 25: ...N D516 1SS133 D519 21DQ09N D522 1SS133 D520 1SS133 D505 30DF6 FC D517 1SS133 D513 1SS133 D510 FE201 6L49 D515 SB10 03A3 D529 1SS133 D511 1N4937 D532 1SS133 D533 1N4937 D526 1SS133 C538 10 16V KA C539 4 7 100V YK C514 10 50V YK C542 1000 16V YK C501 2200 35V YK C504 10 50V YK C540 1000 16V YK D523 MTZJ18B D509 MTZJ18B D514 MTZJ10B D525 MTZJ3 9B D531 MTZJ12B D528 MTZJ5 6B D527 MTZJ2 2B W824 W817 W82...

Page 26: ... 0 01 B C313 0 01 B C307 0 015 B C312 0 01 B C301 0 033 B C309 0 039 B C310 0 033 B C325 0 033 B C323 0 0033 B C324 0 0033 B C326 0 033 B C322 47P CH C320 47P CH C1006 220P CH R1013 10K R304 100 1 4W R303 100 1 4W R1003 12K R1004 12K R1010 10K R1011 10K R311 10K R314 220K R302 2 7K 1 4W R301 2 7K 1 4W R1001 390 1 2W R1002 390 1 2W R313 1K R309 10K R307 20K R305 20K R308 20K R306 20K R331 10K R333 ...

Page 27: ...2W R010 47K 1 2W R005 100 1 4W WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST NOTE THE DC VOLTAGE AT EACH PART WAS MEASURED OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE NOTE THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME P CON 5V TUNER 5V P CON 8V B GND P CON B AFT SCL SDA J_AUDIO_OUT_L J_AUDIO_OUT_R AUDIO_OUT_L AUDIO_OUT_R TUNER_VIDEO J...

Page 28: ...0056 B C742 0 0056 B C745 68P CH C704 1 B C703 1 F C705 1 F C734 0 1 B C725 1 B C722 1 B C719 1 B C738 0 0056 B C736 0 0056 B C744 56P CH C739 0 1 B C712 8P CH C737 0 0056 B C735 0 0056 B R703 2 2K R753 1K 1 4W R713 75 R735 75 R728 3 9K R734 3 9K R704 1K R708 1K R733 3 9K R726 3 9K R721 68 R746 3 9K R745 3 9K R719 75 R705 3 3K R723 1K R732 1K R701 2 2K R702 1K R711 1K R710 1K R739 75 R738 39 R716 ...

Page 29: ...CURRENT CONTROL 1 2 3 4 5 6 7 8 Q518 KTC3875S_Y_RTK VOLTAGE CTL Q519 KTC3209_Y 2 5V REG Q517 KTC3875S_Y_RTK VOLTAGE CTL Q516 KTC3209_Y 3 3V REG W804 W803 R551 10 R538 10K R549 10K R550 10K R529 8 2K R534 18K R526 10 R528 10K R531 1K 1 4W OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE NOTE THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME P CON 9V UNREG 5V GND SW_VIDEO_OUT COMB_OUT_C COMB_OUT_Y AT...

Page 30: ...16V YK C809 1 250V YK C852 47 16V YK D853 1SS133 D854 1SS133 D858 10ELS2N D857 10ELS2N D856 1SS133 D852 1SS133 D855 1SS133 D801 1SS133 D807 1SS133 D802 1SS133 D803 1SS133 D804 1SS133 D805 1SS133 D806 1SS133 D809 1SS133 D808 1SS133 Q852 KTC3198 AMP Q853 2SC752 G TM _Y AMP Q855 KTC3198 SWITCHING Q859 2SC4793 SWTCHING Q856 KTC3198 SWTCHING Q854 KTC3198 BUFFER Q801 KTC4217 RED AMP Q810 KTC3199_Y RED A...

Page 31: ...03 27uH 0305 L1510 22uH0305 L1508 22uH 0305 L1507 22uH0305 L1509 22uH0305 Q1511 KTA1504S_Y_RTK BUFFER Q1509 KTA1504S_Y_RTK BUFFER Q1505 KTA1504S_Y_RTK BUFFER Q1514 KTA1504S_Y_RTK BUFFER Q1506 KTA1504S_Y_RTK BUFFER Q1515 KTA1504S_Y_RTK BUFFER IC1503 TC90A65F 3D_COMB 1 10 100 11 12 13 14 15 16 17 18 19 2 20 21 22 23 24 25 26 27 28 29 3 30 31 32 33 34 35 36 37 38 39 4 40 41 42 43 44 45 46 47 48 49 5 ...

Page 32: ...MEASURED OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE NOTE THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME IC790 NJM2246L 6dB AMP 1 2 3 4 5 6 7 8 C790 0 1 50V KANP L790 22uH 0305 C791 100 16V KA R790 100 1 4W C792 10P CH S790 S791 S792 S793 CP790 003P 2100 CP791 003P 2100 G 22 G 21 TECB33 PCB250 AV PCB FROM TO AV 6DB AMP SCHEMATIC DIAGRAM IN1 SW1 IN2 SW2 IN3 VCC OUT GND NC NC BLUE YELLOW RED ...

Page 33: ...int of the corresponding balloon number in the schematic diagram DEFLECTION MICON SOUND 50ns 1 0V 2 50Ns 1 0V 1 5ms 1 0V 4 5ms 1 0V 3 5ms 10V 18 5ms 10V 18 20µs 10V 20 20µs 10V 19 1ms 500mV 23 1ms 500mV 22 1ms 100mV 25 1ms 100mV 24 20µs 200V 21 5ms 1 0V 16 1ms 2 0V 26 ...

Page 34: ...FORMS NOTE The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram AV CRT SVM 20µs 200mV 28 1ms 2 0V 27 10µs 20V 37 20µs 200mV 29 10µs 20V 38 10µs 20V 39 ...

Page 35: ...01I 101J 105 101G 101F 203 106 203 112 108 203 112 202 202 106 201 201 201 107 201 PCB110 CRT PCB ASS Y 204 109 109 104 PCB060 VM COIL PCB ASS Y 115 115 207 207 207 207 207 203 103 102A 102C 102B 102B 207 207 102 PCB010 MAIN PCB ASS Y 204 204 205 206 114 206 113 205 PCB330 COMB PCB ASS Y 110 111 PCB250 AV PCB ASS Y ...

Page 36: ...310 761WPA0279 HOLDER SPEAKER 109 BZ710259 762WPA0011 HOLDER CRT WIRE 110 BZ710722 752WSAA014 IF SHIELD CASE 111 BZ710723 752WSA0033 IF SHIELD BOTTOM 112 AD300518 801WR00001 DAMPER SPEAKER 113 BZ710260 899HV3T000 HOLDER ANODE WIRE 114 AD301616 761WPA0263 HOLDER JACK 115 AE001107 800WR0A026 SHEET CRT SUPPORT D 201 AD302384 8141H60D54 SCREW TAP TITE P GW22 6x45 202 BZ710035 8117540A64 SCREW TAPPING ...

Page 37: ...OHM 1 4W R749 BZ210119 R002T4102J RC 1K OHM 1 4W R750 BZ210119 R002T4102J RC 1K OHM 1 4W R751 BZ210119 R002T4102J RC 1K OHM 1 4W R752 BZ210119 R002T4102J RC 1K OHM 1 4W R753 BZ210119 R002T4102J RC 1K OHM 1 4W R804 BZ210050 R3X18A123J R METAL OXIDE 12K OHM 2W R806 BZ210050 R3X18A123J R METAL OXIDE 12K OHM 2W R808 BZ210050 R3X18A123J R METAL OXIDE 12K OHM 2W R855 BZ210185 R65582151J R FUSE 150 OHM 1...

Page 38: ...IODE SILICON RM11C EIC D502 BZ410062 D2WTRM11C0 DIODE SILICON RM11C EIC D503 BZ410062 D2WTRM11C0 DIODE SILICON RM11C EIC D504 BZ410062 D2WTRM11C0 DIODE SILICON RM11C EIC D505 AD300076 D28F30DF60 DIODE RECTIFIER 30DF6 FC D506 AD300731 D2WXN49370 DIODE SILICON 1N4937 D507 BZ410006 D1VT001330 DIODE SILICON 1SS133T 77 D508 BZ410006 D1VT001330 DIODE SILICON 1SS133T 77 D509 AD300671 D97U01801B DIODE ZEN...

Page 39: ...000909 I0QS02246L IC NJM2246L IC902 AD300059 I01FF58290 IC AN5829S IC1001 AD300056 I0FSP52760 IC AN5276 IC1503 AD302358 I55FE0A650 IC TC90A65F TRANSISTORS Q101 BZ510109 TCAA3875SY TRANSISTOR SILICON KTC3875S_Y_RTK Q103 BZ510109 TCAA3875SY TRANSISTOR SILICON KTC3875S_Y_RTK Q401 BZ510109 TCAA3875SY TRANSISTOR SILICON KTC3875S_Y_RTK Q402 BZ510097 TCAT03227Y TRANSISTOR SILICON KTC3227_Y AT Q405 AD3021...

Page 40: ...08 TAAA1504SY TRANSISTOR SILICON KTA1504S_Y_RTK Q1506 BZ510108 TAAA1504SY TRANSISTOR SILICON KTA1504S_Y_RTK Q1507 BZ510109 TCAA3875SY TRANSISTOR SILICON KTC3875S_Y_RTK Q1508 BZ510109 TCAA3875SY TRANSISTOR SILICON KTC3875S_Y_RTK Q1509 BZ510108 TAAA1504SY TRANSISTOR SILICON KTA1504S_Y_RTK Q1510 BZ510109 TCAA3875SY TRANSISTOR SILICON KTC3875S_Y_RTK Q1511 BZ510108 TAAA1504SY TRANSISTOR SILICON KTA1504...

Page 41: ...3 CORE BEADS W5RH3 5X5X1 0 BT001 AD302369 141L003010 BATTERY MANGAN R6P AR XICI BT002 AD302369 141L003010 BATTERY MANGAN R6P AR XICI CD501 AD300746 120R615901 CORD AC BUSH 0R615901 CD801 BZ614457 06CU253901 CORD CONNECTOR CU253901 CD802 AD302370 06CU275101 CORD CONNECTOR CU275101 CD803 AD300094 06CP83035A CORD CONNECTOR CP83035A CD851 AD302371 06CU244701 CORD CONNECTOR CU244701 CD852 AD301043 06CU...

Page 42: ...AKER SG04H02BRA SP1002 BZ614381 070C546004 SPEAKER SG04H02BRA TH501 BZ410079 DF5EL3R0A0 DEGAUSS ELEMENT ZPB45BL3R0A TM101 AD302374 07650GR010 TRANSMITTER CT 90158 TU001 AE000273 0163300005 RF UNIT 115 V K015AR_B V801 AD302375 0985270901 CRT W DY A68LXZ696X04 X101 AD302002 100CT8R005 CRYSTAL HC 49 U S X602 AD302003 100CT3R505 CRYSTAL HC 49 C RESISTOR RC CARBON RESISTOR CAPACITORS CC CERAMIC CAPACIT...

Page 43: ...TOSHIBA CORPORATION 1 1 SHIBAURA 1 CHOME MINATO KU TOKYO 105 8001 JAPAN ...

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