Toshiba 20VL43P Service Manual
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Toshiba 20VL43P Service Manual

Toshiba 20VL43P Service Manual

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FILE NO. 010-200306
SERVICE MANUAL
LCD TELEVISION
20VL43P, 14VL43P
May, 2003

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Summary of Contents for Toshiba 20VL43P

  • Page 1 FILE NO. 010-200306 SERVICE MANUAL LCD TELEVISION 20VL43P, 14VL43P May, 2003...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS SERVICE SAFETY PRECAUTIONS ............................ 3 HANDLING THE LCD MODULE ............................5 LOCATION OF CONTROLS ..............................7 LAYOUT OF MAJOR BOARDS ............................9 MECHANICAL DISASSEMBLY ............................10 PACKING DISASSEMBLY ..............................13 WIRING CONNECTION DIAGRAM ........................... 15 CHASSIS AND CABINET REPLACEMENT PARTS LIST ....................16 PC BOARDS BOTTOM VIEW ............................

  • Page 3: Service Safety Precautions

    SERVICE SAFETY PRECAUTIONS • The caution items shown here describe major safety issues and should always be observed. • The meanings of the various indications are as follows. Indicates a hypothetical situation in which service personnel and nearby third parties, or even WARNING end users due to a product defect after the service operation is completed, could possibly be in danger of injury or even death in the event of operational error.
  • Page 4 WARNING • Always advise users to keep children away. There is danger of injury to children from tools, disassembled products, etc. KEEP CHILDREN AWAY • Always disconnect the power plug before starting work whenever power is not required. Failure to disconnect the power plug before starting work can result in electrical shock. UNPULUG •...

  • Page 5: Handling The Lcd Module

    HANDLING THE LCD MODULE Safety Precautions 3. If the panel surface becomes soiled, wipe with cotton or a In the event that the screen is damaged or the liquid crystal soft cloth. If this does not remove the soiling, breathe on (fluid) leaks, do not breathe in or drink this fluid.
  • Page 6 7. Do not expose the LCD module to direct sunlight or strong ultraviolet rays for an extended period of time. 8. Do not store the LCD module below the temperature con- ditions described in the specifications. Failure to do so could result in freezing of the liquid crystal due to cold air or loss of resilience or other damage.

  • Page 7: Location Of Controls

    LOCATION OF CONTROLS (Representative: 20VL43P) TV front VOLUME – + CHANNEL 9 8 a (TV/VIDEO) - 7 (POWER) HEADPHONES AUDIO Jack SCART INPUT EXT2 EXT2 POWER indicator Remote Sensor ON-Timer indicator TV rear To remove the cover, pull the button of the cover toward you.
  • Page 8 Remote Control Leaning about the Remote Control Picture Mode CALL displays screen information. (TV) (POWER) CALL/ displays teletext initial/index. (TTX) (TV/ TEXT/TV VIDEO) selects teletext/TV mode. Position (POWER) turns the TV on and off. Number POSITION NUMBERS allows direct access to channel positions.

  • Page 9: Layout Of Major Boards

    LAYOUT OF MAJOR BOARDS Inverter Board Key/Control Board Main Board Inverter Board Light-Receiving Board – 9 –...

  • Page 10: Mechanical Disassembly

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  • Page 13: Packing Disassembly

    PACKING DISASSEMBLY (20VL43P) Y101 K902 A702A A227 A702B A701 – 13 –...
  • Page 14 PACKING DISASSEMBLY (14VL43P) A227 A701 – 14 –...

  • Page 15: Wiring Connection Diagram

    WIRING CONNECTION DIAGRAM Key/Control Board LCD Monitor Main Unit Side Black Inverter Board White Inverter Board White Black Light-Receiving Board Main Board Flexible Cable Wire Cable Tube Base Unit Main Unit Side Right Speaker Left Speaker (Wiring connection diagram viewed from the rear side) –...

  • Page 16: Chassis And Cabinet Replacement Parts List

    The part number must be used when ordering parts, in order to assist in processing, be sure to include the Model number and Description. • The PC board assembly with mark is no longer available after the end of the production. Model : 20VL43P/14VL43P Capacitors ..... CD Ceramic Disk : Plastic Film : Electrolytic Resistors ....
  • Page 17 Location Location Parts No. Description Parts No. Description CA11 24619040 ELEC. CHIP, 16V 10UF M 3A CV01 24619040 ELEC. CHIP, 16V 10UF M 3A CA12 24100103 CERAMIC CHIP, 50V F 0.01UF Z CV02 24092441 CERAMIC CHIP, 16V F 1UF Z CA13 24105101 CERAMIC CHIP, 50V CH 100PF J...
  • Page 18 RL19 24000445 CHIP JUMPER, 1608TYPE RA44 24011101 CHIP, METAL FILM, 1/20W 100 OHM J RL20 24000445 CHIP JUMPER, 1608TYPE (20VL43P) RA45 24011101 CHIP, METAL FILM, 1/20W 100 OHM J RL23 24011153 CHIP, METAL FILM, 1/2OW 15K OHM J RA46 24011101...
  • Page 19 Location Location Parts No. Description Parts No. Description RS08 24011104 CHIP, METAL FILM, 1/20W 100K OHM J RV24 24011101 CHIP, METAL FILM, 1/20W 100 OHM J RS09 24011101 CHIP, METAL FILM, 1/20W 100 OHM J RV25 24011101 CHIP, METAL FILM, 1/20W 100 OHM J RS10 24011104 CHIP, METAL FILM, 1/20W 100K OHM J...
  • Page 20 Location Location Parts No. Description Parts No. Description LV23 23103887 INDUCTOR, CHIP BEAD, TEM2130AM QS20 23314204 TRANSISTOR, 2SC2412K,Q LV24 23245858 COIL, CHIP INDUCTOR, TRF4100CC QS21 23314204 TRANSISTOR, 2SC2412K,Q LV25 23245858 COIL, CHIP INDUCTOR, TRF4100CC QS22 23205045 TRANSISTOR, 2SA1037AKQ LV32 23103828 INDUCTOR, BEAD, TEM2121M QT01 23000994...
  • Page 21 23306498 REMOCON HAND UNIT IR, CTVUSA, GRL06 23103887 INDUCTOR, CHIP BEAD, TEM2130AM CT-90160 GRV01 24000445 CHIP JUMPER, 1608TYPE Y101 23565967 OWNER’S MANUAL, LCD-TV EURO, 20VL43P KB01 70113206 REMOCON RECEIVER, PIC-37143TC5 Y120 23945015 BAG, POLYETHYLENE COVER 250X400 MA02 23389171 CABLE, FFC P1.0-5-380...
  • Page 22 THIS PAGE IS INTENTIONALLY LEFT BLANK. – 22 –...

  • Page 23: Pc Boards Bottom View

    MAIN BOARD PD1268-1 CONT-SW BOARD PD1268-2 BOTTOM (FOIL) SIDE BOTTOM (FOIL) SIDE CONT-LED BOARD PD1268-3 BOTTOM (FOIL) SIDE CONT-SW BOARD PD1268-4 BOTTOM (FOIL) SIDE – 23 – – 24 –...

  • Page 24: Schematic Diagram

    SCHEMATIC DIAGRAM MODEL : 20VL43P / 14VL43P WARNING: BEFORE SERVICING THIS CHASSIS, READ THE "X-RAY RADIATION PRECAUTION", "SAFETY PRECAUTION" AND "PRODUCT SAFETY NOTICE" ON THE MANUAL FOR THIS MODEL. CAUTION: The international hazard symbols "*" in the schematic diagram and the parts list designate components which have special characteristics important for safety and should be replaced only with types identical to those in the original circuit or specified in the parts list.

  • Page 25: Specifications

    Height 523mm Depth 198mm Mass 14VL43P: 9.1lbs. (4.15kg) 20VL43P: 13.9lbs. (6.3kg) Accessories Remote control with two batteries. (R03 size “AAA”) Power cord, AC Adaptor (This AC adaptor can be only used for this LCD TV. Do not use for other apparatus.) Please refer to owner's manual in detail.
  • Page 26 TOSHIBA CORPORATION 1-1, SHIBAURA 1- CHOME, MINATO-KU, TOKYO 105-8001, JAPAN...
  • Page 27 SCHEMATIC DIAGRAM MODEL : 20VL43P / 14VL43P WARNING: BEFORE SERVICING THIS CHASSIS, READ THE "X-RAY RADIATION PRECAUTION", "SAFETY PRECAUTION" AND "PRODUCT SAFETY NOTICE" ON THE MANUAL FOR THIS MODEL. CAUTION: The international hazard symbols "*" in the schematic diagram and the parts list designate components which have special characteristics important for safety and should be replaced only with types identical to those in the original circuit or specified in the parts list.
  • Page 28 MAIN PD1268 20VL43P 14VL43P MAIN...
  • Page 32 MAIN PD1268...
  • Page 36 20VL43P 14VL43P MAIN...
  • Page 37 CONTROL PD1268 20VL43P LED PD1268 CONTROL PD1268 14VL43P 20VL43P 14VL43P ALL CONTROL...
  • Page 38 LED PD1268...
  • Page 39 CONTROL PD1268 20VL43P CONTROL PD1268 14VL43P 20VL43P 14VL43P ALL CONTROL...

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14vl43p

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