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Toshiba 21V33F2 Service Manual
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Toshiba 21V33F2 Service Manual

Toshiba 21V33F2 Service Manual

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TOSHIBA
SERVICE MANUAL
COLOUR TELEVISION
21V33F2
PRINTED IN UK. 2002 C

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Summary of Contents for Toshiba 21V33F2

  • Page 1 TOSHIBA SERVICE MANUAL COLOUR TELEVISION 21V33F2 PRINTED IN UK. 2002 C...

  • Page 2: Servicing Notices On Checking

    SERVICING NOTICES ON CHECKING 1. KEEP THE NOTICES 6. AVOID AN X-RAY As for the places which need special attentions, Safety is secured against an X-ray by consider- they are indicated with the labels or seals on the ing about the cathode-ray tube and the high cabinet, chassis and parts.

  • Page 3: Table Of Contents

    CONTENTS SERVICING NOTICES ON CHECKING ...................... A1-1 HOW TO ORDER PARTS ........................... A1-1 IMPORTANT ..............................A1-1 CONTENTS ..............................A2-1 GENERAL SPECIFICATIONS ........................A3-1~A3-5 DISASSEMBLY INSTRUCTIONS 1.REMOVAL OF ANODE CAP ......................B1-1 2.REMOVAL AND INSTALLATION OF FLAT PACKAGE IC ............... B2-1, B2-2 SERVICE MODE LIST ..........................

  • Page 4: General Specifications

    GENERAL SPECIFICATIONS CRT Size / Visual Size 21 inch / 660.0mmV System CRT Type FLAT Deflection degree Magnetic Field BV/BH +0.45G/0.18G Color System PAL/SECAM Speaker 2 Speaker Position Front Size 2.0 x4.7 Inch Impedance Sound Output 5.0+5.0 W 10%(Typical) 4.0+4.0 W DDR SECAM NTSC3.58(AV)+NTSC4.43 PAL60Hz...
  • Page 5 GENERAL SPECIFICATIONS On Screen Menu Display Menu Type Character Picture Contrast Brightness Colour Tint (NTSC Only) Sharpness Audio Bass Treble Balance BBE On/Off Stable Sound On/Off CH Tuning Manual CH MAPPING CH Allocation Text Langage(East/West) Language Clock Set On/OffTimer Set On Timer Set Pin Code Registration Panel Lock...
  • Page 6 GENERAL SPECIFICATIONS G-10 Remote Unit RC-GX Control Glow in Dark Remocon Format Custom Code 40-BF h Power Source Voltage(D.C) UM size x pcs UM-4 x 2 pcs Total Keys 34 Keys Keys Power 1/Rename 2/Move Volume Up / + Volume Down / - Previous Select Picture Menu...
  • Page 7 GENERAL SPECIFICATIONS G-11 Features Auto Degauss Auto Shut Off Canal+ CATV Anti-theft(Back Up 30 Min.) Memory(Last CH) Memory(Last Volume) Auto Search CH Allocation CH MAPPING Just Clock Function Game Position CH Label VM Circuit Full OSD Noise Blue Back T'Text Text type Fastext Text Language...
  • Page 8 GENERAL SPECIFICATIONS G-13 Interface Switch Front Power (Tact Sw) System Select Main Power SW Sub Power Channel Up Channel Down Volume Up Volume Down Rear AC/DC TV/CATV Selector Degauss Main Power SW Indicator Power Stand-by Stand-by/ON Yes(Red) On Timer Yes(Green) Terminals Front Video Input...

  • Page 9: Disassembly Instructions

    DISASSEMBLY INSTRUCTIONS 3. After one side is removed, pull in the opposite direction to 1. REMOVAL OF ANODE CAP remove the other. Read the following NOTED items before starting work. NOTE After turning the power off there might still be a potential Take care not to damage the Rubber Cap.

  • Page 10: Removal And Installation Of Flat Package Ic

    DISASSEMBLY INSTRUCTIONS REMOVAL AND INSTALLATION OF When IC starts moving back and forth easily after desoldering completely, pickup the corner of the IC using FLAT PACKAGE IC a tweezers and remove the IC by moving with the IC desoldering machine. (Refer to Fig. 2-3.) REMOVAL NOTE Put the Masking Tape (cotton tape) around the Flat...
  • Page 11 DISASSEMBLY INSTRUCTIONS INSTALLATION When bridge-soldering between terminals and/or the soldering amount are not enough, resolder using a Thin- Take care of the polarity of new IC and then install the tip Soldering Iron. (Refer to Fig. 2-8.) new IC fitting on the printed circuit pattern. Then solder each lead on the diagonal positions of IC temporarily.

  • Page 12: Service Mode List

    SERVICE MODE LIST This unit provided with the following SERVICE MODES so you can repair, examine and adjust easily. To enter the Service Mode, press both set key and remote control key for more than 2 seconds. Remocon Key Operations Set Key Reset the user setting items (PICTURE, VOLUME and LANGUAGE) to the initial state VOL.

  • Page 13: Electrical Adjustments

    ELECTRICAL ADJUSTMENTS 1. ADJUSTMENT PROCEDURE 2. BASIC ADJUSTMENTS Read and perform these adjustments when repairing the 2-1: CONSTANT VOLTAGE circuits or replacing electrical parts or PCB assemblies. Place the set with Aging Test for more than 5 minutes. CAUTION Connect the digital voltmeter to TP501. Set condition is AV MODE without signal.
  • Page 14 ELECTRICAL ADJUSTMENTS 2-7: WHITE BALANCE 2-10: VERTICAL POSITION/VERTICAL LINEARITY NOTE: Adjust after performing CUT OFF adjustment. Receive the monoscope pattern from the Pattern Generator. Place the set with Aging Test for more than 10 minutes. Using the remote control, set the brightness and Receive the gray scale pattern from the Pattern contrast to normal position.
  • Page 15 ELECTRICAL ADJUSTMENTS 2-13: TINT 2-15: Confirmation of Fixed Value (Step No.) Receive the NTSC color bar pattern. (Audio Video Input) Please check if the fixed values of the each adjustment items are set correctly referring below. Using the remote control, set the brightness and contrast to normal position.
  • Page 16 ELECTRICAL ADJUSTMENTS PURITY AND CONVERGENCE 3-3: STATIC CONVERGENCE ADJUSTMENTS NOTE Adjust after performing adjustments in section 3-2. NOTE Receive the crosshatch pattern from the color bar Turn the unit on and let it warm up for at least 30 generator. minutes before performing the following adjustments.
  • Page 17 ELECTRICAL ADJUSTMENTS 4. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (WIRING CONNECTION) CRT PCB TP024 CP806 TP022 J801 CP802B CP803B VR420 J701 VR401 FB401 CP401 CD802 TP501 R521 TP001 CP802A AC IN DEGAUSS COIL SPEAKER CD501 VR501 CP502 CP1001 CP501 J702 J703 J704 J705 OS101...

  • Page 18: Block Diagram

    BLOCK DIAGRAM VOL DOWN TU001 MICON W/T.TEXT IC VOL UP IC101 OECF013B Q102 SCL SDA BPL AGC CH DOWN LED DRIVE ON_TIMER Q103 KEY_IN CH UP LED DRIVE STANDBY LED ON TIMER P.CON+5V D103 STAND BY/P.ON MEMORY IC SDA 19 CHROMA IC D101 AVDD1...

  • Page 19: Printed Circuit Boards Main/Crt

    PRINTED CIRCUIT BOARDS MAIN/CRT (INSERTED PARTS) SOLDER SIDE CP101 VR420 R430 W112 R910 R909 L706 R407 L708 R428 L707 W826 W115 L711 L709 L701 W016 L703 D410 D712 J701 R712 R713 R715 L705 D405 R716 R714 L702 W012 C412 W137 W033 D527 W011...
  • Page 20 PRINTED CIRCUIT BOARDS MAIN/CRT (CHIP MOUNTED PARTS) SOLDER SIDE R132 Q703 R137 Q704 Q103 Q102 R738 R126 C736 R102 R103 R104 R101 C737 R739 R731 R107 R603 C140 C109 C108 R605 R816 Q601 C102 C112 R811 R818 C111_1 C101 C104 C132 R148 IC102...
  • Page 21 MICON/TUNER SCHEMATIC DIAGRAM (MAIN PCB) TU001 TUWRF4EG-778F2A OS101 LED DRIVE ON TIMER RPM7138-H5 Q102 D103 2SA1037AK R137 R104 R103 R102 R101 LED DRIVE LTL-1CHGE-002A 2.2K 1.2K STAND BY/P.ON Q103 GREEN D101 2SA1037AK CP001 R132 003P-2100 C122 SLR-342VCT32 ACCESSORY MICON W/T.TEXT IC IC101 OECF013B UM-4...
  • Page 22 IF/CHROMA SCHEMATIC DIAGRAM (MAIN PCB) TO STEREO SIF BUFFER Q204 W823 MONO_A_IN 2SC2412K R206 SIF_IN VIF PRE.AMP L206 C204 Q201 L204 CF304 0.22uH 0.022 B KTC3881S-RTK CF202_1 10uH R217 MKT40.4MA110P J1981M R304 CF201 TPWA02B SECAM VL SW 1K 1/4W FROM/TO 21PIN/AV SW Q303 2SC2412K TUNER_V_OUT...
  • Page 23 21PIN/AV SW SCHEMATIC DIAGRAM (MAIN PCB) R712 VIDEO OUT 82 1/4W SCART_C_IN BUFFER R717 Q701 VIDEO IN 2SC2412K 1/4W L713 21PIN2_V_OUT 22uH S808Y R733 FOR VCR R702 L701 L IN 8.2K 22uH C743 R747 L702 L OUT 14.9 FROM SOUND AMP 22uH FRONT_V_IN3 R709...
  • Page 24 STEREO SCHEMATIC DIAGRAM (MAIN PCB) L905 10uH 0305 C905 R909 100P CH 100 1/4W C906 R910 100P CH 100 1/4W FROM/TO MICON/TUNER STEREO_RESET FROM POWER DACM_R D_CTR_I/O_2 P.CON+5V 80 STANDBYQ DACM_L 25 DACA_L D_CTR_I/O_1 P.CON+8V 79 ADR_SEL 26 VREF2 DACM_SUB AUDIO_CL_OUT FROM IF/CHROMA A2/NICAM/DOLBY IC...
  • Page 25 SOUND AMP SCHEMATIC DIAGRAM (MAIN PCB) FROM/TO STEREO FRONT_A_IN_R FRONT_A_IN_L SOUND_L SOUND_R TO 21PIN/AV SW FRONT_V_IN3 SOUND AMP IC IC1002 AN5276 ATT.CONT. ATT. FRONT VIDEO RIPPLE J703 FILTER HTJ-032-03AY STAND MUTE 20.5 10.3 21.7 10.3 R707 C1001_1 R1003 100 1/2W FRONT AUDIO L J704 HTJ-032-03AW...
  • Page 26 DEFLECTION/CRT SCHEMATIC DIAGRAM (MAIN PCB) CP802A CP802B B2013H02-6P B2013H02-6P C629 FROM/TO IF/CHROMA R602 CUT OFF CUT OFF 560 1/4W B.OUT B.OUT B.OUT R.OUT R.OUT R.OUT G.OUT G.OUT G.OUT PROTECT PROTECT V-DRIVE IC IC401 TDA8174A VAMP PROTECT CP803A CP803B V_OUT Q403 B2013H02-4P B2013H02-4P ABCL...
  • Page 27 POWER SCHEMATIC DIAGRAM (MAIN PCB) 3A 125V ICP502 R543 D526 FE201-6L49 0.39 3W 20P_3000 R521 TO STEREO 0.68 3W D506 R524 P.CON+8V 1SS133 D520 47K 1/4W 11.5 C503_1 P.CON+5V 30DF6-FC RELAY SW Q505 100V KTC3203_Y C517_1 680P TO DEFLECTION/CRT EMERGENCY Q509 H.DRV+B 2SA1624...

  • Page 28: Micon/Tuner

    WAVEFORMS MICON/TUNER IF/CHROMA 0.5µs 50µs 20µs 100mV 0.5V 10ms 50µs 20µs 100mV 20µs 50µs 20µs 0.5V 0.2ms 20µs 20µs 50µs 0.2ms 20µs 100mV 100mV NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.

  • Page 29: 21Pin/Av Sw

    WAVEFORMS 20µs 20µs 200mV DEFLECTION/CRT 20µs 10ms 10ms 100mV 20µs 10ms 20µs 200mV 21PIN/AV SW 10ms 20µs 20µs 20µs 20µs 20µs NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.

  • Page 30: Waveforms

    WAVEFORMS SOUND AMP 20µs 0.2ms 0.5V 0.5V 0.2ms 2µs 0.2ms 200V 0.5V 20µs 0.2ms 0.2ms 100mV STEREO 20µs 0.2ms 0.2ms 100mV 0.5V 0.2ms 20µs 0.2ms 0.5V 200mV NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.
  • Page 31 WAVEFORMS 0.2ms 200mV 0.2ms 200mV 0.2ms 200mV 0.2ms 200mV 0.2ms 200mV NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.

  • Page 32: Mechanical Exploded View

    MECHANICAL EXPLODED VIEW PCB110 (CRT PCB ASS'Y) PCB010 (MAIN PCB ASS'Y) 101F 101B 101J 101B 101G 101D 101C 101I 101J 101H 101E 101A...

  • Page 33: Mechanical Replacement Parts List

    MECHANICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description AE002363 A3N803Z720 CABINET,FRONT ASSY 101A AE001976 701WPJC219 CABINET,FRONT 101B AE000785 709WPA0024 CABINET HOLDER 101C AE000786 711WPA0166 PLATE,FRONT 101D AE000787 713WPA0197 GUIDE,REMOCON 101E AD301713 7235490022 BADGE,BRAND 101F AE000792 735WPA0691 BUTTON,BASE 101G AE001977 735WPBA701...

  • Page 34: Electrical Replacement Parts List

    ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description RESISTORS R003 AE000356 R002T4271J 270 OHM 1/4W R004 AE000356 R002T4271J 270 OHM 1/4W R005 AE000499 R801R7823J 82K OHM 1/10W R006 AE000371 R801R7153J 15K OHM 1/10W R101 AE000380 R801R7391J 390 OHM 1/10W R102 AD300510 R801R7821J...
  • Page 35 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description RESISTORS R412 BZ210114 R4X5T6123F R,METAL 12K OHM 1/6W R416 BZ210053 R002T22R2J 2.2 OHM 1/2W R417 AE000490 R4X5T6392F R,METAL 3.9K OHM 1/6W R418 AE000486 R002T4470J OHM 1/4W R419 AE000380 R801R7391J 390 OHM 1/10W R420 AE000494...
  • Page 36 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description RESISTORS R645 AE000373 R801R7222J 2.2K OHM 1/10W R646 AE000488 R002T4822J 8.2K OHM 1/4W R647 AE000370 R801R7152J 1.5K OHM 1/10W R702 AE000386 R801R7822J 8.2K OHM 1/10W R704 AE000385 R801R7750J OHM 1/10W R705 AE000386 R801R7822J...
  • Page 37 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description CAPACITORS C006 AE002625 CS0RCH412J 100 PF 50V CH C007 AE000312 CS0RB0414K 0.01 UF 50V B C101 AE000326 CS0RCH4U1J PF 50V CH C102 AE000311 CS0RB0315K 0.1 UF 25V B C103 AE000323 CS0RCH4H1J PF 50V CH...
  • Page 38 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description CAPACITORS C508 AE000312 CS0RB0414K 0.01 UF 50V B C509 AE000312 CS0RB0414K 0.01 UF 50V B C511 BZ110119 E02LF2222M 2200 UF 16V C515 BZ110207 E02LT2102M 1000 UF 16V C517 AD301320 C0PLRR7U2K 680 PF 2KV R C518...
  • Page 39 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description CAPACITORS C902 AE000313 CS0RB04E3K 0.0015UF 50V B C903 AE000325 CS0RCH4Q2J 470 PF 50V CH C904 AE000459 CS0RCH4H2J 220 PF 50V CH C905 AE002625 CS0RCH412J 100 PF 50V CH C906 AE002625 CS0RCH412J 100 PF 50V CH...
  • Page 40 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description DIODES D520 BZ410111 D28F30DF60 DIODE,RECTIFIER 30DF6-FC D521 BZ410006 D1VT001330 DIODE,SILICON 1SS133T-77 D525 BZ410021 D97U05R61B DIODE,ZENER MTZJ5.6B T-77 ! D526 AD301980 D2CF2016L0 DIODE,SILICON FE201-6L49 D527 BZ410043 D2WT011E10 DIODE,SILICON 11E1-EIC D528 BZ410100 D97U01801B DIODE,ZENER...
  • Page 41 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description COILS &TRANSFORMERS L102 BZ310141 02167F100J COIL L202 BZ310148 033700005R COIL,VIDEO IFT 3700005 L203 BZ310077 021LA61R0M COIL L204 AD301445 021LA6100J COIL L206 BZ310049 021LA6R22M COIL 0.22 UH L207 AD301445 021LA6100J COIL L208 AE000290...
  • Page 42 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description MISCELLANEOUS CP401 BZ614303 069S450089 CONNECTOR PCB SIDE A1561WV2-A5P CP501 BZ614176 069S320419 CONNECTOR PCB SIDE A3963WV2-3PD CP502 BZ614283 069S420110 CONNECTOR PCB SIDE A1561WV2-2P CP801 AD301996 069S330010 CONNECTOR PCB SIDE A2361WV2-3P CP806 BZ614058 069W010010...
  • Page 43 TOSHIBA Information Systems (UK) Ltd Consumer Products Division, European Service Centre, Admiralty Way, Camberley, Surrey. GU15 3DT...

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