Question about Sanyo DP42746 42 in. Plasma Television

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Dead Sanyo DP42746

Our Sanyo 42-inch plasma just stopped working. No picture, no sound, no green light, no click, nothing. I have tried different outlets, turning it on with the button on top as well as the remote, and nothing happens. When it went out, our satellite DVR function also stopped working, so I think it may have been some electrical surge or something. Is there a fuse that we can get to and change? Or, do you have a clue what it can be?

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  • kussdk Jan 11, 2009

    Thanks for the suggestions! I took the fuse and power supply to Radio Shack, and they tested them both and said they're OK. So, is there anything else that we can check? We'll probably have to take it in to a shop, but it would be nice to have an idea as to what it might need.

  • kussdk Jan 11, 2009

    As I noted earlier, Radio Shack checked out the power supply and fuse next to it, and said they are both OK.

  • kussdk Jan 12, 2009

    The TV is nearly 2 years old and not under warranty. We were not using a surge protector. We removed the back and took the power supply and the fuse next to it to Radio Shack; both checked out OK. There are several other fuses; should we have those tested also? Any other ideas? Thanks!

  • kussdk Jan 13, 2009

    I have not received a response since I let you know that the fuse and power supply are OK. Please let me know what else it could be. We are waiting to hear from you before taking it to the shop.

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Try to flip the fuse on your circuit breaker it could have blown the power to that outlet just go to circuit breaker and flip all switches to the middle and test again hope this helps

Posted on Jan 13, 2009

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The simplest solution is to take it in and have it repaired..mostly here is going to be guesswork and no one can tell you for sure what caused the problem other than a possible power surge as u have suggested. when you take it to a shop they will give you an estimate of the fix and you have the choice to fix it or buy a new one. as i said mostly here you will get alot of guesswork and you need something concrete where you dont have to run around having parts checked etc.

Posted on Jan 11, 2009

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If the power supply is fine, and there is power on PSU DC connector on tv side, try gently moving the plug.

If the TV powers up then it is the DC connector that is soldered on digital control board (the main board).

If the connector does not make any change, then the unit must be taken apart.

If there is no power at all , then it is either a bad short inside or a defective digital board.

Ensure first that the PSU is working, and that there is power to the connector.

Posted on Jan 11, 2009

  • Ginko
    Ginko Jan 11, 2009

    I mean, if the panel is gone, you get blink code, same for all board, apart PSU that can die completely or return code.

    If PSU is fine, then the most likely is a defective digital board.

    You can find all replacement parts cost here: DP42746 (162)

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If the fuse is ok and the board is ok.then it is definately the issue of bad or blown capacitors or ic on the main board that has to be checked with a meter to get it replaced.as that would not be too costly.but it needs severe checking of the board and for that a repair center is the best place to take it.

Posted on Jan 11, 2009

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Welcome to fixya! You have tried the only Fixes that it could be. Your next stop is an Authorized Service Center. Watch the Price of Repair Though!

Posted on Jan 11, 2009

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Did you use surge protector. If yes look for blown fuse where.
If now you will need to remove the back cover in order to get access to fuse mount. But it will void the warranty if TV is still on warranty.
Repair manual is here
Good Luck
http://www.hdtvsolutions.com/pdf/DP42746%20MANUAL.pdf

Posted on Jan 11, 2009

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Just check out the fuse on the main circuit board if it is blowned this happens.the fuse will cost you $2 to get.

Posted on Jan 11, 2009

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Its the faulty power supply of your device .u will find the fuse on the powersupply it self

Posted on Jan 11, 2009

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