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Jvc Av-56wp30

Discussion in 'Electronic Repair' started by Tim, May 6, 2006.

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  1. Tim

    Tim Guest

    About a week ago I turned on my bigscreen and the red color wa
    distorted in the upper left corner. Example- if there is a scrollin
    banner at the top of the screen, when it reaches the left side, th
    words split and the red words drop down about two inches below th
    blue/green words. I tried to use the convergence, but it wont move th
    red up at all. It will only move it left, right, and down further. Ca
    anyone tell me what might be wrong?
  2. Dani

    Dani Guest

    Likely partial convergence failure. ***CAUTION!!!!*** This is one of
    JVC units that you have to unplug the set to prevent the "booby trap"
    eeprom info failure from light hitting the sensor. Be very carefull

    You can do the convergence surgery through the front panel of this
    model without removing the back and setting off the booby trap.

    Replace both STK convergence IC's, also check low value resistors.
    ...5, or 1.0 ohms approx. The booby trap is the optical sensor under
    a hole in the DVI metal box. Unplug power plug and wait a minute,
    remove panel, unplug all wires to the DVI module and you can work
    on it safely with power on.

    Also you can work from front for convergence job only, if this model
    uses long retangular convergence board (no screws, held in place with
    snap hooks with metal box. you can get it out from front and reach
    deep to release one of cables from holders and unplug from the small
    stand up PCB.

    Hope this helps, Dani.
  3. Tim

    Tim Guest

    You dont think it is just a bad red gun, Dani
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