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Toshiba 15V31D Service Manual

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TOSHIBA
SERVICE MANUAL
COLOUR TELEVISION
15V31D
PRINTED IN UK. 2002 C

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Summary of Contents for Toshiba 15V31D

  • Page 1 TOSHIBA SERVICE MANUAL COLOUR TELEVISION 15V31D 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 15 inch / 357mmV System CRT Type Flat Deflection degree Magnetic Field BV/BH +0.45G/0.18G Color System Speaker 1 Speaker Position Front Size 1.5 x2.7 Inch Impedance Sound Output 10%(Typical) DDR SECAM NTSC3.58(AV)+NTSC4.43 PAL60Hz Tuning Broadcasting System CCIR...
  • 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 Wss Signal Wide Change Virtual Dolby Surround Hotel Lock G-12 Accessories Owner's Manual Language Germany,Dutch,Italian w/Guarantee Card Buyer Model No. 15V31D x Remote Control Unit Rod Antenna Poles 2Pole Terminal D-type Loop Antenna Terminal U/V Mixer DC Car Cord (Center+)
  • Page 8 W x D x H(mm) x 472 x 457 Design As per Buyer's Description of Origin No (Assembled in UK) Buyer Model No. 15V31D Natural Dropping At 1 Corner / 3 Edges / 6 Drop Test Surfaces Height (cm) Container Stuffing Sets/40' container...

  • 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 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 2-6: FOCUS 2-10: BRIGHT CENT Receive a 70dB monoscope pattern. Receive the PAL black pattern*. (RF Input) Turn the Focus Volume fully counterclockwise once. Using the remote control, set the brightness and Adjust the Focus Volume until picture is distinct. contrast to normal position.
  • Page 15 ELECTRICAL ADJUSTMENTS 2-13: TINT Receive the NTSC color bar pattern. (Audio Video Input) Using the remote control, set the brightness and contrast to normal position. Connect the oscilloscope to TP024. Activate the adjustment mode display of Fig. 1-1 and press the channel button (20) on the remote control to select "TINT".
  • 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 TP022 CP806 J801 CP802B CP803B VR420 J701 VR401 FB401 CP401 CD802 TP501 R521 TP001 CP802A AC IN DEGAUSS COIL SPEAKER CD501 VR501 CP502 CP1002 CP501 J702 J703 J704 OS101 MAIN PCB...

  • Page 18: Block Diagram

    BLOCK DIAGRAM CH UP TU001 MICON W/T.TEXT IC CH DOWN IC101 OECF013B Q102 SCL SDA VOL UP LED DRIVE ON_TIMER Q103 KEY_IN VOL DOWN LED DRIVE STANDBY LED ON TIMER P.CON+5V D103 STAND BY/P.ON MEMORY IC SDA 19 CHROMA IC D101 AVDD1 IC199...
  • Page 19 MICON/TUNER SCHEMATIC DIAGRAM (MAIN PCB) TU001 TUWRF4EG-778F2A ACCESSORY OS101 LED DRIVE ON TIMER RPM7138-H5 Q102 D103 UM-4 2SA1037AK R137 BT001 R104 R103 R102 R101 TM101 LTL-1CHGE-002A 2.2K 1.2K LED DRIVE R03(AB)2PXGPI RC-GX010 STAND BY/P.ON GREEN ANT001 Q103 D101 CP001 2SA1037AK R132 T4-216AP-BK 003P-2100...
  • Page 20 IF/CHROMA SCHEMATIC DIAGRAM (MAIN PCB) TO SOUND AMP W823 MONO_A_IN SIF BUFFER Q204 2SC2412K R206 VIF PRE.AMP L206 C204 Q201 L204 0.22uH 0.001 B KTC3881S-RTK CF202_1 12uH R217 K3953M FROM/TO 21PIN/AV SW C621 MONO_A_OUT1 TUNER_V_OUT L202 3700005 EXT_A_IN SCART_V_IN1 SCART_V_IN2/Y 21_B 21_G 21_R...
  • Page 21 21PIN/AV SW SCHEMATIC DIAGRAM (MAIN PCB) L713 22uH C742 L717 FROM SOUND AMP 10uH FRONT_A_IN_L FRONT_V_IN3 C741 W824 L711 22uH W836 FROM/TO MICON/TUNER FORTHD_VCR_1 FROM/TO IF/CHROMA L704 SCART_V_IN2/Y 22uH EXT_A_IN SCART_V_IN1 R703 MONO_A_OUT1 1/4W 21_B BUFFER 21_G Q702 21_R 2SC2412K VIDEO IN VIDEO IN 21_Y...
  • Page 22 SOUND AMP SCHEMATIC DIAGRAM (MAIN PCB) TO 21PIN/AV SW FRONT_A_IN_L 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 FROM IF/CHROMA 100 1/2W FRONT AUDIO L J704 MONO_A_IN HTJ-032-03AW C1003 R1004...
  • Page 23 DEFLECTION/CRT SCHEMATIC DIAGRAM (MAIN PCB) CP802A CP802B B2013H02-6P B2013H02-6P 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 V_OUT CP803B Q403 B2013H02-4P B2013H02-4P DTC114EKA ABCL...
  • Page 24 POWER SCHEMATIC DIAGRAM (MAIN PCB) 3A 125V ICP502 R543 D526 FE201-6L49 0.39 3W 20P_3000 R521 0.82 3W D506 R524 47K 1/4W 1SS133 11.5 C503_1 100V D520 EMERGENCY 30DF6-FC RELAY SW Q509 2SA1624 Q505 TO DEFLECTION/CRT KTC3203_Y C517 H.DRV+B 680P P.CON+8V RY501 ALKS321 31.9...

  • Page 25: Micon/Tuner

    WAVEFORMS MICON/TUNER IF/CHROMA 0.5µs 50µs 20µs 100mV 0.5V 10ms 50µs 100mV 200mV 20µs 20µs 50µs 0.5V 0.2ms 20µs 20µs 50µs 0.2ms 20µs 100mV NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.

  • Page 26: Deflection/Crt

    WAVEFORMS 20µs 20µs 20µs 100mV 20µs 20µs 200mV 20µs 10ms 100mV 200mV DEFLECTION/CRT 20µs 20µs 10ms 200mV 21PIN/AV SW 10ms 20µs 20µs NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.
  • Page 27 WAVEFORMS 10ms 20µs 20µs 20µs SOUND AMP 20µs 0.5V 2µs 0.2ms 200V 20µs NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.

  • Page 28: Mechanical Exploded View

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

  • Page 29: Mechanical Replacement Parts List

    MECHANICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description AE002387 A3N708C720 CABINET,FRONT ASSY 101A AE001927 701WPJC306 CABINET,FRONT 101B AE001928 711WPAA098 PLATE,FRONT 101C AE001929 713WPAA116 GLASS,LED 101D AE000539 723549A016 BADGE,BRAND 101E AE001930 735WPBA782 BUTTON,FRAME 101F AE001931 735WPBA783 BUTTON,POWER 101G AE001932 743WKA0047 SPRING,BUTTON...

  • Page 30: 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 31 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description RESISTORS R426 AE000353 R002T2471J 470 OHM 1/2W R427 AE002525 R801R7101J 100 OHM 1/10W R428 BZ210150 R002T2010J OHM 1/2W R430 BZ210164 R002T4104J 100K OHM 1/4W R446 AE000353 R002T2471J 470 OHM 1/2W ! R501 BZ210206 R002T2155J...
  • Page 32 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description RESISTORS R721 AD301200 R00204102J 1K OHM 1/4W R725 AE000934 R002T2391J 390 OHM 1/2W R726 AD301003 R801R7102J OHM 1/10W R727 AE000368 R801R7104J 100K OHM 1/10W R728 AE000368 R801R7104J 100K OHM 1/10W R736 AD301728 R801R7103J...
  • Page 33 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description CAPACITORS C217 BZ210177 E02LU2470M UF 16V C218 AE000316 CS0RB04H4K 0.022 UF 50V B C220 BZ110042 E02LU1471M 470 UF 10V C221 AE000311 CS0RB0315K 0.1 UF 25V B C403 BZ110149 E02LT4471M 470 UF 35V C404 BZ110180...
  • Page 34 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description CAPACITORS C724 AE000312 CS0RB0414K 0.01 UF 50V B C725 AE000336 E02LU1101M 100 UF 10V C726 AE000325 CS0RCH4Q2J 470 PF 50V CH C727 AE000325 CS0RCH4Q2J 470 PF 50V CH C731 AE000312 CS0RB0414K 0.01 UF 50V B...
  • Page 35 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description IC101 AE001701 I5PD0F013B OECF013B IC102 AD301641 I9UF032310 PST3231NR IC199 AE002036 A3N707C015 S-24C16AFJA-TB-01 IC201 AE002386 I0WDE2246H STV2246H AE000034 I0WDE2246E STV2246E ! IC401 BZ611081 I0WTD81740 TDA8174A IC502 BZ611089 I1KA98R09A KIA78R09API IC503 AE000475 I1KA98R060 KIA278R06PI...
  • Page 36 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description SWITCHES ! SW501 AE000574 0530105019 SWITCH ESB92S22B VARIABLE RESISTORS VR401 BZ210218 V1K63H3BTE VOLUME,SEMI FIXED NVG6TLTAB222 VR420 AE000038 V1K62Q2BT8 VOLUME,SEMI FIXED NVG6THTB471 VR501 BZ210128 V1163H3BTC VOLUME,SEMI FIXED EVNCYAA03BE3 P.C.BOARD ASSEMBLIES PCB010 AE002037 A3N707C010K...
  • Page 37 TOSHIBA Information Systems (UK) Ltd Consumer Products Division, European Service Centre, Admiralty Way, Camberley, Surrey. GU15 3DT...

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