Toshiba 14AF41, Service Manual

Page 1: ...SERVICE MANUAL COLOR TELEVISION FILE NO 050 200106 14AF41 ...

Page 2: ...t 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 n...

Page 3: ...er Receive CH Destination Others 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 4 W at AC 120 V 60 Hz Per Yea...

Page 4: ... 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 Sleep Timer Yes Sound Mute Yes V chip Rating Yes G 8 OSD Language English French Spanish OSD Language Setting English G 9 Clock and Sleep Time...

Page 5: ...Yes 7 Yes 8 Yes 9 Yes 0 Yes 100 Yes CH Up Yes 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 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...

Page 6: ... Yes Stable Sound Yes FBT Leak Test Protect Yes Favorite CH Yes G 12 Accessories Owner s Manual Language English 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 Safey Instructions Yes Dew AHC Caution Sheet No...

Page 7: ...utput RCA Audio Output RCA 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 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...

Page 8: ... 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 th...

Page 9: ...ng 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 ma...

Page 10: ... 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 installa...

Page 11: ...r 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 value NOTE FOR THE REPLACING OF 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 Tabl...

Page 12: ...eive a 70dB monoscope pattern Connect the digital voltmeter between the TP001 and the GND Activate the adjustment mode display of Fig 1 1 and press the channel button 02 on the remote control to select RF AGC Press the VOL UP DOWN button on the remote control until the digital voltmeter is 1 95 0 05V 2 3 CUT OFF 1 2 3 4 Adjust the unit to the following settings G DRIVE 64 B DRIVE 64 R BIAS 32 G BI...

Page 13: ... on the remote control until the right and left vertical lines are straight 2 11 TRAPEZIUM 1 2 3 4 Receive the crosshatch signal from the Pattern Generator Using the remote control set the brightness and contrast to normal position Activate the adjustment mode display of Fig 1 1 and press the channel button 24 on the remote control to select TRAPEZIU Press the VOL UP DOWN button on the remote cont...

Page 14: ...ar pattern Audio Video Input Press the TV VIDEO button on the remote control to set to the AV mode Then perform the above adjustments 2 7 Receive the color bar pattern Audio Video Input Press the TV VIDEO button on the remote control to set to the CS mode Then perform the above adjustments 2 6 Press the VOL UP DOWN button on the remote control until the red color level is adjusted to 100 of the wh...

Page 15: ...between the deflection yoke and CRT funnel to fix the deflection yoke Refer to Fig 3 2 b R G B R G B Fig 3 2 a WEDGE WEDGE WEDGE WEDGE POSITION Fig 3 2 b R G B R G B Receive the crosshatch pattern from the color bar generator Combine red and blue of the 3 color crosshatch pattern on the center of the screen by adjusting the pair of 4 pole magnets Combine red blue magenta and green by adjusting the...

Page 16: ...MAJOR COMPONENTS LOCATION GUIDE FOCUS VOLUME SCREEN VOLUME FB401 MAIN PCB TP001 J702 J701 J703 J704 J705 TP002 T501 VR502 CRT PCB J801 TP806 TP804 TP901 TU001 ...

Page 17: ...EO3 LINE2 YUV IN Y S JACK IF 11 SCL 4 SDA 5 39 37 SCL SDA SCL 24 SDA 25 18 19 18 17 12 7 2 5 14 7 19 2 24 23 21 22 30 32 31 25 22 20 27 29 9 6 3 5 2 4 1 7 14 15 13 8 10 C Y C L R V 4 1 15 13 3 5 T501 13 15 25 34 28 16 15 14 42 47 55 38 31 7 9 3 51 14 4 6 HV 1 7 9 F 10 S 1 5 6 7 R G B DY 8 F 4 L R V L R V V OUT FBP IN H OUT ABCL B OUT G OUT R OUT C IN CVBSLNT IN IF DET OUT IF IN IF IN 9 10 SCL SDA ...

Page 18: ...28 R813 R815 R803 C809 R829 J 8 0 1 W002 TP804 TP806 TP805 CP803 W003 L804 R802 W001 W804 W809 W810 C823 CD801 CD802 R1503 R1504 R1502 Q1501 C1519 C1504 R1505 R1501 R1506 C1510 C1521 C1515 C1516 C1514 R1517 R1510 R1518 R1516 Q1504 C1506 C1507 C1509 C1508 C1512 Q1503 R1511 R1512 C1501 C1528 IC1501 C1513 R1513 Q1502 R1508 C1503 C1526 C1505 C1522 R1509 W808 PRINTED CIRCUIT BOARDS COMB CRT SOLDER SIDE...

Page 19: ...D614 D613 D611 W098 W090 W117 W835 L701 W055 W054 C740 C738 R778 W801 IC303 C326 C351 IC101 D107 D104 R107 IC199 W108 IC103 L101 D103 C111 R131 R128 C122 C119 C118 C123 R326 R109 C783 R357 R358 CP351 C724 C725 W137 W106 W078 C929 C921 C925 C919 C918 C917 R907 R908 R786 W136 W138 W126 W127 W075 W089 W129 W128 W083 W080 W018 CP802A W103 W058 W061 W100 W101 W085 W084 W131 W132 W095 W063 C428 C328 C32...

Page 20: ... C008_1 R322 C331_1 C332 R324 C334 R321 R319 C330_1 C333 C335 R325 C325 R320 R323 C336_1 C337_1 R136 R124 R119 R110 R108 C108_1 C109_1 C101_1 R133 R134 C114 C113 R121 R123 Q102 R130 R132 Q101 R117 R129 R127 R118 R114 R116 R101 R126 R104 R115 R112 R113 C107_1 R102 C121 R106 C128_1 R103 R328 C339 R327 C338_1 R730 Q704 Q705 R732 R738 R737 R739 R736 R727 R731 R125 C931 C928 C926 R905 R904 C966 C967 C9...

Page 21: ...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 50 51 52 6 7 8 9 TU001 TECC1040PG32D 1 10 11 12 13 14 15 2 3 4 5 6 7 8 9 GND B Vout OS101 PIC 28143SY 2 1 2 3 IC103 PST600C RESET IC 1 2 3 SW104 SKHVBED010 VOL DOWN SW105 SKHVBED010 POWER SW101 SKHVBED010 CH UP SW103 SKHVBED010 VOL UP SW102 SKHVBED010 CH DOWN IC199 S 24C08ADPA 01 MEMORY IC 1 2 3 4 5 6 7 8 Q107_1 DTC114TKA SWIT...

Page 22: ...7_1 0 01 F C618_1 0 01 F C631_1 39P SL C632_1 39P SL C637_1 3P SL C638_1 100P SL C205 10P CH W848 W849 W860 W816 W840 W844 W830 W842 W839 W847 D201 MTZJ12B D604 MTZJ6 2B D603 MTZJ6 2B D602 MTZJ6 2B C216 10 16V KA C616 47 16V KA C214 10 16V KA C211 0 22 50V KA C213 100 10V YK C203 100 16V YK C615 100 10V YK C604 1 50V KA C640 1000 16V YK C935 4 7 50V KA C608_1 1 50V KA C643 47 16V KA D614 1SS133 D6...

Page 23: ...K R412 8 2K R403 330 R429 680 1 2W R425 680 1 2W R417 33K R421 680 1 2W R428 100 1 4W R435 2 2K R407 5 6K 1 4W R406 4 7K 1 2W R430 120K 1 2W R408 4 7K 1 4W R409 1K R415 820 R404 220 1 2W R401 1K R402 100K R405 5 6K R443 68K 1 2W R437 1 1 2W R432 8 2K 1 2W C416 470P 500V B C438_1 0 001 Y C423_1 0 0056 1 6KV ECWH C414 0 1 100V TF C427 0 22 100V TF C401 22P 500V SL C402 0 0022 500V B C411 22P 500V SL...

Page 24: ...1 2W R533 1 8K R553 22K 1 2W R513 5 6K 1 4W R520 390 1 4W R519 1K 1 4W R511 22K R523 10K 1 4W R515 10K 1 4W R510 1K R502 27 1 2W R503 3 3K 1 4W R525 10K R527 22K 1 4W R512 47K 1 4W R534 220K 1 4W C517_1 0 0022 2KV YR C513 0 001 125V MX C554_1 0 0022 Y C509 0 0056 B C506 0 1 250V ECQUL C505 0 1 250V ECQUL C519 0 001 125V MX C535_1 0 0022 2KV YR C514 0 001 125V MX C522 0 001 125V MX C502_1 0 001 500...

Page 25: ... 100 R326 100 1 4W R320 1 5K R319 4 7K R362 10K R363 10K R355 4 7K R356 4 7K C365_1 1 B C363_1 1 B C337_1 100P SL C336_1 100P SL C333 0 47 B C334 0 033 B C384 0 01 B C335 0 033 B C339 0 1 B C325 0 1 B C380 0 01 B C353_1 1 B C352_1 1 B C330_1 0 022 F C332 0 47 B C331_1 0 022 F C338_1 0 001 Y W831 W835 W832 C364 100 35V YK C326 47 16V KA C328 2 2 50V KA C303 47 16V YK C351 470 10V YK C368 1000 35V Y...

Page 26: ...K R778 10K 1 4W R786 100 1 4W R736 1K R738 220K R728 3 9K R715 1K R740 3 9K R722 1 5K R732 3 9K R781 1 2K R756 470 R734 3 9K R758 470 R757 470 R723 470 R718 82 1 4W R716 470 R743 82 1 4W R752 1K R702 82 1 4W R708 82 1 4W C703 0 0056 B C742 0 0056 B C720_1 33P SL C722 1 B C717_1 33P SL C793_1 33P SL C708 0 0056 B C706 8P CH C727 0 0056 B C726 0 0056 B C746 0 0056 B C750 1 B C748 0 1 B C723 82P CH C...

Page 27: ... PIECES REPAREES PAR UN ATTENTION R813 220 R817 270 R819 270 R801 100 1 4W R814 220 R802 100 1 4W R815 220 R803 100 1 4W R821 270 R828 2 7K 1 4W R830 2 7K 1 4W R811 1 8K R829 2 7K 1 4W R810 1 8K R812 1 8K R816 220 1 4W R809 100 1 4W C823 220P B C805 680P CH C804 470P CH C806 560P CH C808 0 001 2KV B C813 0 0022 M W804 W810 W809 C809 2 2 250V YK D801 1SS133 D802 1SS133 D803 1SS133 Q801 2SC2621 RED ...

Page 28: ...517 24K R1518 560 R1505 100 R1509 180 R1513 1K R1504 1K R1502 6 8K R1503 3 3K C1522 0 1 B C1507 0 01 B C1509 0 01 B C1512 0 01 B C1506 0 01 B C1516 100P CH C1514 0 01 B C1515 180P CH C1513 0 01 B C1510 0 01 B C1508 27P CH C1528 22P CH C1526 120P CH C1504 56P CH C1503 100P CH C1505 0 1 B C1519 0 01 B C1501 0 1 B C1521 0 01 B W802 W808 W801 C1517_1 100 16V KA C1525_1 3 3 50V KA C1511 0 47 50V KA Q15...

Page 29: ...1V 50µs div 8 0 5V 10ms div 7 1V 20µs div 6 1V 20µs div MICON TUNER The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram NOTE CHROMA IF 11 0 5V 20µs div 10 2V 20µs div 13 1V 20µs div 12 1V 2µs div 14 2V 20µs div 15 2V 20µs div ...

Page 30: ...oon number in the schematic diagram NOTE 16 2V 5ms div 17 20V 5ms div 18 10V 10ms div 19 20V 20µs div 20 2V 20µs div 26 5V 2ms div 28 200mV 20µs div 27 5V 2ms div 29 200mV 20µs div 30 2V 20µs div SOUND AV 21 200V 50µs div 23 2V 5ms div 22 2V 5ms div 24 2V 5ms div 25 2V 5ms div DEFLECTION ...

Page 31: ...The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram NOTE 31 1V 50µs div 32 2V 5ms div 33 2V 5ms div 38 50V 20µs div 37 50V 20µs div 39 50V 20µs div CRT ...

Page 32: ...01 113 PCB110 CRT PCB J801 111 114 114 114 114 PCB060 VM COIL PCB 201 201 201 201 110 202 116 116 116 203 117 109 103 104 105 108 107 204 204 101 204 SP352 204 SP351 112 206 206 205 205 PCB010 MAIN PCB TU001 FB401 205 102 206 206 205 PCB330 COMB PCB ...

Page 33: ...1 WASHER CRT T 0 5 116 AD300134 800WQ00039 FELT SHEET 117 AD300824 A3J702I740 CABINET BACK ASSY 201 BZ710035 8117540A64 SCREW TAPPING B0 TRUSS 4x16 202 BZ710262 8117540A04 SCREW TAPPING B0 TRUSS 4x10 203 BZ710031 8110630A04 SCREW TAP TITE P BRAZIER 3x10 204 BZ710030 8110630804 SCREW TAP TITE P BRAZIER 3x8 205 BZ710019 8109630802 SCREW TAP TITE B BRAZIER 3x8 206 BZ710239 8109I30A04 SCREW TAP TITE B...

Page 34: ...CWH C422 AD300605 P411F4224J CMPP 0 22 UF 400V ECWF C423 AD300606 P414F9562H CMPP 0 0056UF 1 6KV ECWH C424 BZ110054 P3N1F5333J CPP 0 033 UF 630V C425 AD300077 C0JLYR713K CC 0 001 UF 2KV YR C426 AD300061 E5EZFD220M CE 22 UF 250V C428 BZ110041 E02LT3471M CE 470 UF 25V C430 AD300064 E02LT8220M CE 22 UF 100V C501 AD300066 E02LF4222M CE 2200 UF 35V C502 BZ110061 C0JTB0513K CC 0 001 UF 500V B C502 BZ110...

Page 35: ... 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 SILICON 1SS133T 77 ICS IC101 AD300051 I56D07054A IC OEC7054A IC103 AD300050 I9UJ0T600C IC PST600C IC199 AD300608 A3J702B015 IC S 24C08ADPA 01 IC201 AD300058 I05DC12530 IC TB1253N IC303 BZ611034 I06DF62420 IC M62420SP IC353 AD300056...

Page 36: ...Z310116 028R140023 COIL DEGAUSS 8R140023 L505 BZ310002 021673101K COIL 100 UH L601 BZ310003 021673470K COIL 47 UH L602 BZ310002 021673101K COIL 100 UH L603 BZ310003 021673470K COIL 47 UH L604 BZ310003 021673470K COIL 47 UH L701 BZ310001 021673101J COIL 100 UH L703 BZ310003 021673470K COIL 47 UH L802 AD300123 021673151K COIL 150 UH L803 AD300123 021673151K COIL 150 UH L804 AD300123 021673151K COIL ...

Page 37: ...69R260589 CONNECTOR PCB SIDE 52147 0610 CP802 AD300098 069R270589 CONNECTOR PCB SIDE 52147 0710 CP803 BZ614017 069W320018 CONNECTOR PCB SIDE TS 80P 02 V1 CP804 BZ614058 069W010010 CONNECTOR PCB SIDE 005P 2100 CP901 AD300102 069J160260 CONNECTOR PCB SIDE 6035B 06Z002 T CP1501 AD300102 069J160260 CONNECTOR PCB SIDE 6035B 06Z002 T CP801A AD300105 067R006019 WIRE HOLDER 51048 0610 CP802A AD300104 067R...

Page 38: ...TOSHIBA AMERICA CONSUMER PRODUCTS INC 1 1 SHIBAURA 1 CHOME MINATO KU TOKYO 105 8001 JAPAN ...