SERVICE MANUAL LCD Color Television 42HL67 Rev.1 For Technical Bulletins, Technical Tips, or other information regarding the service of this model, visit the Toshiba America Consumer Products National Service Division website at: www7.toshiba.com This model is classified as a green product (*1), as indicated by the underlined serial number.
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EXPRESS OR IMPLIED WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Toshiba shall not be liable for any damages, losses, expenses or costs, if any, incurred in connection with or as a result of use of any information or data provided herein.
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that have these same characteristics. Use only the specified parts when the mark is indicated in the circuit diagram or parts list. Part mounting and wire routing should be the same as that used originally. For safety purposes, insulating materials such as isolation tubes or tape are sometimes used and printed circuit boards are sometimes mounted floating.
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fluid should contact the skin or clothing, wipe off with alcohol, etc., and rinse thoroughly with water. If the fluid should enter the eyes, immediately rinse the eyes thoroughly with running water. When attaching the LCD module to the LCD cover, position it appropriately and fasten at the position where the display can be viewed most conveniently.
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CMOS-LSI circuitry is used in the LCD module, so avoid damage due to static electricity. When handling the module, use a wrist ground or anchor ground. Do not expose the LCD module to direct sunlight or strong ultraviolet rays for extended periods. Do not store the LCD module below the temperature conditions described in the specifications.
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Entering Service Mode Set VOLUME to minimum and press MUTE button twice on the remote control. Press MUTE button again and hold button down. Service Mode display While holding the MUTE button, press MENU button on TV set. Selecting the Adjusting Item Every pressing of CH button in the service mode changes the adjustment items.
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LED Indication The yellow, blue and red/green LED lights on the TV (at the bottom center of the TV) indicate the TV's status, as described below: Note: If the TV loses A/C power (e.g., a power outage occurs or the power cord is unplugged), when power is restored, the yellow LED will blink while the TV is booting until the remote control is usable.
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Sound Missing Distorted Sound Missing or Distorted? Is Missing Digital Analog Digital Sound Analog Distorted Sound or Digital? Analog or Digital? Reconfirm proper operation of all Replace Analog analog audio Signal Processing sources. Section. Replace Digital Signal Processing Section, then suspect Analog.
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Picture Missing Distorted the Picture Missing or Distorted? Is the Is Distorted Digital Analog Digital Missing Picture Analog or Picture Analog or Digital? Digital? Replace Analog Signal Replace Digital Replace Digital Processing Section, then Signal Processing Signal suspect Digital. Section. Processing Section.
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Dead any LEDs Blinking on the front of the unit? Suspect Power Supply, Use Blink Codes to Low B Supply – Then help determine Suspect system Control problem area. (SYSCON). Questions or Statements in flow chart pertain to only the defined areas. It is assumed that all other inputs and functions operate correctly.
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Dead set – No sound or picture Does 3VDC appear at pin 3 of P806A when on-off is pressed? any problem LED indications 5VDC present at pin 1 exhibited after the of P806A when the unit power button is is plugged in? pressed? Suspect the Low B supply, then the main...
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Examples No or distorted Replace the video LCD display panel. Does the screen discolored the back light function or does it have streaks normally when the unit or dark areas with no is turned on? signal input? Is the on screen display normal? Using the Is the problem...
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Does the back light function and then turn off? Replace the 24 VDC present LCD display. at pins 1 and 5 of P804 when the unit is turned Replace the Main Power supply. 6VDC present at pin 8 of CN91A when the unit is turned on? 3.3 VDC present at pin 7 of P812A shortly...
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No or distorted Audio Digital Analog problem associated with analog or digital inputs? Using Using the power the power distribution diagram, distribution diagram, are are the voltages normal the voltages normal at at P812A and CN90A and P812B? CN91B? Suspect the Suspect the Suspect the digital module.
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Does the screen light unevenly? (Normal screen with a shaded area) This *** Warranty Concession normally required for LCD panel indicates a defective CCFL replacement. Digital photo (Lamp). The may be requested. display should Contact Technical be replaced. Support. Does the back light function and then turn off? If it is available , try the...
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U02A LOW-B U01A POWER U03D U03A U04A AV-TERM SIGNAL U03B Front-AV U03C...
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Stand Exploded View A425 A426 A427 A428 A429...
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Replacement Parts List Location Part No. Description A201 75006119 CESE/COVER/LID FRONT BEZEL ASSY, FRONT BEZEL ASSY A320 75005734 PIECE, CTRL S ASSY A401 75006120 CESE/COVER/LID BACK COVER ASSY, BACK COVER ASSY A420 75006553 LEG STAND KIT FIX A425 75007239 LEG FIX BKT ASSY FIX A426 75007238 LEG BASE ASSY FIX BB A429 75007210 LEG STAND WRENCH B001 75006117 DISPLAY, LC420WX5‐SLC1 C801 76503510 CAPACITOR, PLASTIC FILM, LE224‐C C802 76503510 CAPACITOR, PLASTIC FILM, LE224‐C C803 76092567 CAPACITOR, CERAMIC DISC, AC250V E 1000PF M C804 76092567 CAPACITOR, CERAMIC DISC, AC250V E 1000PF M C807 76092567 CAPACITOR, CERAMIC DISC, AC250V E 1000PF M C808...
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Replacement Parts List Location Part No. Description C883 76668339 CAPACITOR, ELECTROLYTIC, 35V 3.3UF M C884 76073181 CAPACITOR, ELECTROLYTIC, 35V 56UF M C885 76092567 CAPACITOR, CERAMIC DISC, AC250V E 1000PF M C886 76676470 CAPACITOR, ELECTROLYTIC, 100V 47UF M C887 76073190 CAPACITOR, ELECTROLYTIC, 35V 1200UF M C888 76073158 CAPACITOR, ELECTROLYTIC, 16V 2200UF M C889 76073145 CAPACITOR, ELECTROLYTIC, 10V 3300UF M CE01 76092179 CAPACITOR, CERAMIC CHIP, 25V B 0.22UF K CE02 76092179 CAPACITOR, CERAMIC CHIP, 25V B 0.22UF K CE10 75005708 CAPACITOR, CHIP CERA, 50V B 0.33UF K, C2012JB1H334KT CE11 76092730 CAPACITOR, CERAMIC CHIP, 16V B 0.1UF K CE12 76794101 CAPACITOR, ELECTROLYTIC, 16V 100UF M CE15 76665101 CAPACITOR, ELECTROLYTIC, 10V 100UF M CE17...