Question about Hitachi 42HDT52 42 in. Plasma HDTV

4 Answers

Cannot turn on. Power light is not on. Have unplugged and replugged in. Tried a different plug. Have it plugged into a batter backup with other electronics - cable box and DVD player. Cable box and DVD player have power and are on. Not TV.

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  • 2 more comments 
  • jbeno Jul 16, 2008

    What do I do about a power supply failure?

  • jbeno Jul 16, 2008

    TV is only a couple years old. No sound or anything.

  • jbeno Jul 17, 2008

    I still have to get a repair person, but at least I'll have an idea as to what they should be fixing. Thank you.

  • Mark Kristiansen Nov 22, 2011

    I am just now experiencing this problem with my Hitachi 42HDT52A. What was the diagnosis for it and how much did it cost to repair? Thanks!

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4 Answers

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  • Master
  • 2,035 Answers

If you would like to attempt a DIY, you will need a service manual to guide you. THis will help to trouble shoot the problem ...

Posted on Jul 17, 2008

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  • Hitachi Master
  • 13,433 Answers

Check for a blown fuse in the power supply area. if you got warranty that should cover the repairs if not a simple blown fuse problem.

Posted on Jul 17, 2008

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  • Expert
  • 101 Answers

Some TVs require being grounded to turn on. Make sure the socket is grounded. If your UPS has a "building wiring fault" LED and it's lit, that could be the ticket. Also see if there is a separate power switch on the back of the TV, near the power plug.

Posted on Jul 16, 2008

  • Jerrod J
    Jerrod J Jul 17, 2008

    This is most likely a case of bad electrolytic capacitors in the power supply. If you are comfortable with disassembling and soldering in new capacitors, that is probably the fix. Otherwise you will have to take it to a TV repair shop, or send it back to the manufacturer.
    First check and see if it is under warranty still.
    product registration for warranty
    Otherwise...
    service locator


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  • Master
  • 2,267 Answers

How old is your TV?
Do you have any audio?
If you do not, more likely a power supply failure.

Posted on Jul 16, 2008

  • Jaime Hernandez Jul 16, 2008

    If it's a power supply failure, you should measure the voltages if you know how; from the power supply to the other circuit boards.

    Click here and ask them if they have a power supply for your plasma.

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