Toshiba 20A23 Скачать руководство пользователя страница 28 | Manualshive

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MECHANICAL EXPLODED VIEW

I-1

PCB010
(MAIN PCB ASS'Y)

206

204

205

204

109

103

202

202

202

202

202

202

104

110

108

202

107

201

201

201

201

PCB110
(CRT PCB ASS'Y)

111

111

101A

101B

101E

101D

101E

101D

203

101C

101

105

203

102

106

203

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Содержание 20A23

Страница 1: ...SERVICE MANUAL COLOR TELEVISION 20A23 FILE NO 050 200312 DOCUMENT CREATED IN JAPAN May 2003 ...

Страница 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...

Страница 3: ...F HOURS USED WHEN REPLACING EEPROM MEMORY IC ELECTRICAL ADJUSTMENTS BLOCK DIAGRAMS PRINTED CIRCUIT BOARDS MAIN CRT SCHEMATIC DIAGRAMS MICON CHROMA TUNER DEFLECTION CRT TV POWER SOUND AV 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 ...

Страница 4: ...estination 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 No 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 5 W at AC 120 V 60 Hz Per Year kWh Year P...

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

Страница 6: ...s 6 Yes 7 Yes 8 Yes 9 Yes 0 Yes 100 No CH Up 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 Yes Enter Yes Mute Yes Exit No MTS Audio Select No Set Yes Set Yes 16 9 No Multi Brand Keys CH Up VCR No CH Down VCR No Pause Still No TV VCR VCR No Code No FF No Rew No Rec No Play No St...

Страница 7: ...ock Yes Game Timer Yes Energy Star No Favorite CH No Surround No 16 9 Mode 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 Instruction Yes De...

Страница 8: ...ut No S Input No Color Stream No 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 506 5 x 484 x 464 5 G 15 Weight Net Approx 21 0kg 46 3 lbs Gross Approx 23 8kg 52 5 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...

Страница 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 ...

Страница 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...

Страница 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...

Страница 12: ...l 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 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 cor...

Страница 13: ...H PHAS V SIZE V SHIFT R DRIVE B DRIVE R BIAS G BIAS B BIAS BRIGHT CENT BRIGHT MAX BRIGHT MIN CONTRAST CENT NO 00 01 04 05 06 07 08 09 10 11 12 13 14 15 16 Fig 1 2 NO 17 18 19 20 21 22 23 24 25 26 27 28 29 30 TV 00 OSD 17 2 4 FOCUS 1 2 3 Receive the monoscope pattern Turn the Focus Volume fully counterclockwise once Adjust the Focus Volume until picture is distinct 2 3 WHITE BALANCE NOTE Adjust aft...

Страница 14: ...mote control to set to the AV mode Then perform the above adjustments 1 3 2 11 SUB CONTRAST 1 2 3 4 Activate the adjustment mode display of Fig 1 1 and press the channel button 17 on the remote control to select CONT MAX Press the VOL UP DOWN button on the remote control until the contrast step No becomes 80 Receive a broadcast and check if the picture is normal Press the TV VIDEO button on the re...

Страница 15: ... of the each adjustment items are set correctly referring below RF AV Fig 2 2 White 100 Red 110 Fig 2 3 A A NO 04 14 15 16 18 20 21 23 24 28 29 FUNCTION H VCO BRIGHT MAX BRIGHT MIN CONT CENT CONT MIN COLOR MAX COLOR MIN SHARPNESS FM LEVEL TEST MONO TEST STERIO STEP NO 04 170 60 40 20 70 00 43 00 00 00 ...

Страница 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...

Страница 17: ...RTS LOCATION GUIDE WIRING CONNECTION D 5 CRT DY TU001 CP401 VR502 FB401 CP601 AC IN MAIN PCB CP806 CRT PCB TP402 CP802B CP803B CP803A CP802A TP022 TP024 J711 J710 CP502 L503 CP1001 SPEAKER VR402 VR401 S501B S501A DEGAUSS COIL J801 CP801 C D 8 0 1 CRT ...

Страница 18: ... B Heater F 9 10 PUMP UP AMP 7 5 2 6 V OUT IC IC401 AN5522 VCC RGB Proc 1 RGB MATRIX COLOR CONT ROM RAM 38 37 26 27 57 58 56 16 Hor Proc SYNC SEPA Hor VCO Hor COUNT DOWN AFC 1 H COINCIDENT AFC 2 H PHASE 1 J711 2 J710 2 DY D501 D504 RECTIFIER 3 1 4 2 L501 AC IN F501 Q507 FEED BACK T501 3 7 13 FEED BACK SW Q502 BUFFER Q501 SWITCHING 5 DEGAUSS COIL L503 6 5 MEMORY IC IC199 S 24C04BDP LA SDA SCL POWER...

Страница 19: ...C630 C617 C610 C106 C601 X601 C605 IC199 C620 C621 D603 D604 C602 R104 Q601 C614 C612 Q602 Q603 Q610 R605 R602 W001 W018 W017 C622 R606 W007 C628 W003 R614 R613 R615 Q606 R620 R611 Q607 W045 D606 R618 W074 W071 W065 R107 R108 R515 W061 W884 R608 Q609 W059 W013 W057 W056 W055 W054 R115 W081 R123 R1002 W083 R127 R125 W079 W086 W825 Q105 C002 W088 W070 W080 W010 W075 W015 W023 W002 D106 W050 W049 W06...

Страница 20: ... 1 0 1 C102 C101 C104 C105 C107 C108_1 R102 R103 C113 R120 C603 C604 R601 C609 R604 C626 C627 R610 R607 R627 R609 C629 R621 R617 R616 R109 R110 R106 R105 R129 R121_1 C001 R004 R003 R126 R128 R404 R628 C809 C810 C811 C003 R111 R133 R113 R624 W833 W879 W880 R506 PRINTED CIRCUIT BOARDS MAIN CRT CHIP MOUNTED PARTS SOLDER SIDE F 3 F 4 ...

Страница 21: ... 6 7 8 9 D106 SLR 342VCT32 POWER ON ON TIMER C633 10 16V KANP CP601 173979 7 1 2 3 4 5 6 7 TM101 RC EH020 BT001 R03 AB E_2P_G BT002 R03 AB E_2P_G P CON 5V CLAMP_OFF PROTECT P CON 5V H_OUT H_CTL ABCL CLAMP H_CTL G OUT R OUT H_SYNC B OUT PROTECT DEGAUSS_H CLAMP_OFF V_OUT GND V_FEEDBACK AT 5V ABCL H_OUT X RAY SDA R OUT G OUT SCL UNREG 12V B OUT H_SYNC REMOTE 12V AFT POWER_FAIL KEY1 V_OUT UNREG 12V X ...

Страница 22: ...410 680 1 2W R411 1K 1 2W R412 470 1 2W R422 6 8K 1 2W R445 150K 1 2W R433 470 1 2W R413 1 8K 1 2W R406 1 1 2W R437 4 7K R813 470 R816 470 R815 470 R421 68K 1 4W R806 2 7K 1 4W OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE NOTE THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME DANS LA NOMENCLATURE DES PIECES N UTILISER QUE CELLS DECRITES DANGEREUSES AN POINT DE VUE SECURITE LES PIECES REPAREES P...

Страница 23: ...5V ECQUL C502 0 001 2KV B C517_1 0 0018 2KV RR C511 47 25V YK C508 4 7 100V YK C520 22 50V YK C501_1 1000 16V YK R506 22K R520 1 5M 1 2W R503 1 2M 1 4W R532 1 5K R533 270 R534 100 R511 1 2M 1 4W R505 270 R507 150 R504_1 1K 1 4W R514 5 6K 1 4W R554 100K 1 4W R553 5 6K 1 4W R500 2 7M 1 2W 10 R515 10K 1 4W R516 100 1 4W R525 10K 1 4W R523 47K 1 4W R512 10K 1 4W R528 3 3K 1 4W R513 100 R529 22K 1 4W O...

Страница 24: ... AND SUBJECT TO CHANGE WITHOUT NOTICE NOTE THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME DANS LA NOMENCLATURE DES PIECES N UTILISER QUE CELLS DECRITES DANGEREUSES AN POINT DE VUE SECURITE LES PIECES REPAREES PAR UN ETANT ATTENTION SINCE THESE PARTS MARKED BY CAUTION DESCRIBED IN PARTS LIST ONLY CRITICAL FOR SAFETY USE ONES ARE W845 W837 W866 W829 IC1001_1 AN7511 SOUND AMP IC 1 2 3 4 5 6 7 8 AUD...

Страница 25: ...TAL TESTER WHEN THE COLOR BROADCAST NOTE THE DC VOLTAGE AT EACH PART WAS MEASURED C701 10 16V KA R734 1K OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE NOTE THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME W860 W825 TUNER VIDEO SIGNAL AUDIO SIGNAL D702 MTZJ6 8B GND GND MONO_F_A_IN GND VIDEO_IN 19 20 PCB010 TMC563 TO MICON CHROMA TUNER FROM TO SOUND MAIN PCB VIDEO_3_IN FROM TO TV POWER L3_IN AV S...

Страница 26: ...red at the point of the corresponding balloon number in the schematic diagram 2 20V 20µs div 3 200mV 20µs div 0 5V 5ms div 4 5 6 1V 20µs div DEFLECTION CRT 0 5V 5ms div 1V 20µs div 7 8 9 20V 20µs div 10 2V 20µs div 200V 20µs div 11 10V 5ms div 12 10V 5ms div 13 50V 20µs div 14 15 50V 20µs div H 1 ...

Страница 27: ...NOTE The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram 16 50V 20µs div SOUND 0 5V 1ms div 17 1V 1ms div 18 200mV500µs div 19 20 500mV 20µs div AV H 2 ...

Страница 28: ...XPLODED VIEW I 1 PCB010 MAIN PCB ASS Y 206 204 205 204 109 103 202 202 202 202 202 202 104 110 108 202 107 201 201 201 201 PCB110 CRT PCB ASS Y 111 111 101A 101B 101E 101D 101E 101D 203 101C 101 105 203 102 106 203 ...

Страница 29: ...ER ANODE WIRE 110 AD302152 726000A040 SHEET CRT NO 111 AD301899 800WR0A003 SHEET CRT SUPPORT 201 BZ710275 8121J50B54 SCREW TAP TITE P GW20 5x28 202 BZ710035 8117540A64 SCREW TAPPING B0 TRUSS 4x16 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 S BRAZIE...

Страница 30: ...6 BZ110035 P2122B104M CMP 0 1 UF 275V ECQUL C507 AD301635 E51CGC331M CE 330 UF 200V C514 AD301320 C0PLRR7U2K CC 680 PF 2KV R C517 AD301702 C0PLRR7G3K CC 0 0018 UF 2KV R C518 AD301108 CD39E0MH3M CC 0 0022UF 250V C521 AD300060 E62NFB101M CE 100 UF 160V C530 AD301026 CD39E0M13M CC 0 001 UF 250V C531 AD300925 E02LT2102M CE 1000 UF 16V C533 AD301026 CD39E0M13M CC 0 001 UF 250V C802 AD300078 C0JBB0713K ...

Страница 31: ...R Q610 BZ510070 TCAT032034 TRANSISTOR SILICON KTC3203_Y AT Q804 BZ510091 TCA0042170 TRANSISTOR SILICON KTC4217 O Y Q805 BZ510091 TCA0042170 TRANSISTOR SILICON KTC4217 O Y Q806 BZ510091 TCA0042170 TRANSISTOR SILICON KTC4217 O Y COILS TRANSFORMERS L401 BZ310063 022100027A COIL LINEARITY ELH5L4113 L501 AD301395 029T000104 COIL LINE FILTER 1R0A562F20 L503 BZ310033 028R200026 COIL DEGAUSS 8R200026 T401...

Страница 32: ...YE LET XRY20X30BD F501 AD301046 081PC6R305 FUSE 51MS063L FB401 AD302299 043221012F TRANSFORMER FLYBACK FQI 21B002 FH501 BZ614005 06710T0006 HOLDER FUSE EYF 52BC FH502 BZ614005 06710T0006 HOLDER FUSE EYF 52BC OS101 AD301048 0773071001 REMOTE RECEIVER RPM7138 H5 RY501 AD300114 0560V20115 RELAY ALKS321 SP1001 BZ614029 070C533008 SPEAKER 810 47 171 TH501 AD302000 D8EE0B1400 DEGAUSS ELEMENT B59203 S106...

Страница 33: ...TOSHIBA CORPORATION 1 1 SHIBAURA 1 CHOME MINATO KU TOKYO 105 8001 JAPAN ...

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