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Jvc av-48wp55 no power

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    Jvc av-48wp55 no power

    I have a JVC AV48WP55 which will not power up. When plugged in, the green light on front lights for one second and goes out. I hear a slight hum from the speakers for about a second also. I have read a common problem is a shorted IC on either the red green or blue boards but I have disconnected CN00A and get the same results so I know that is not the initial problem.

    This set is some sort of CRT / Projection hybrid and having very little experience with CRT's and no service manual I am stumped. Can anyone offer me advice / theory of operation or anything that would help? I appreciate anything you can offer!

    #2
    Re: Jvc av-48wp55 no power

    It is 3-CRT (Red, Blue, and Green CRTs) type Rear Projection TV.
    I found the so called Service Manual but it does not have any schematics in it, what a joke.
    Never stop learning
    Basic LCD TV and Monitor troubleshooting guides.
    http://www.badcaps.net/forum/showthr...956#post305956

    Voltage Regulator (LDO) testing:
    http://www.badcaps.net/forum/showthr...999#post300999

    Inverter testing using old CFL:
    http://www.badcaps.net/forum/showthr...er+testing+cfl

    Tear down pictures : Hit the ">" Show Albums and stories" on the left side
    http://s807.photobucket.com/user/budm/library/

    TV Factory reset codes listing:
    http://www.badcaps.net/forum/showthread.php?t=24809

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      #3
      Re: Jvc av-48wp55 no power

      Yes, I guess that is the same "service manual" i found. Not even a flowchart!

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