Question about Sanyo DP42746 42 in. Plasma Television

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I just purchased a sanyo model dp42740 42 in plasma tv 1hr ago. When i turn it on, the front green light comes on and about 3 seconds later the tv shuts off.it wont stay on.

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: HDTV 42 inch Plasma Sanyo model DP 42746

the picture is very dark

Posted on Jan 24, 2008

SOURCE: Sanyo plasma 42 TV Turn off for no reason

Product of Japan is good

but made in Japan sucks

Posted on Jul 25, 2008

  • 133 Answers

SOURCE: LG 42 plasma power problem

needs power supply Part number 6709900023A
it is a 171 dollar part, you should be able to order through LG,

Posted on Jan 10, 2009

  • 304 Answers

SOURCE: I purchased a Plasma Samsung 42

What a you are seeing is called "Diffusion Error". It means that the Panel has gone bad.
Sometimes it can be adjusted out but IT WILL come back even worse and contiue to grow worse. It is caused by a defective Panel. The only way to eliminate the problem is to replace the panel. Have a trained Samsung tech replace the Panel and make sure he adjust the Power Supply voltages to the Panel voltages that are listed on a sticker on the new Panel.

Posted on Jul 17, 2009

  • 135 Answers

SOURCE: screen went black on my 42" sanyo model dp42647 lcd

Hi there! The panel may be in protection mode. The Inverter board is the most logical area to start after checking power supply Voltages.(5,6,24 and 13Volts). There may be coils on the Inverter Board which have bad soldering or faulty. Other than this it may be main board which controls switch on or off. If all else fails, refer to a repairer. Beware of High Current!!! Best Wishes and Good Luck, Jus004

Posted on Aug 23, 2009

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Sanyo plasma 42 TV Turn off for no reason


Ok Fellas I found the Problem!
The Problem is the V4 Y-Main Board. This board is located on the left side of the case looking upright from the back. I spoke with may suppliers, and Sanyo all confirming this. Apparently it has been an issue for some time. Sanyo has replaced the V4 Y Main board with a W1 Y main board in newer models. The W1 Board is NOT compatible for us tho. Just to be sure... If your T.V is taken apart (like mine) Disconnect the peripheral cable from the V4 Y Main, and turn on the set. I bet it will power up with audio and channel function just NO picture. When you plug the board back in... POOF set shuts down. Replacement boards are VERY hard to come by. So Happy Hunting!

42' HD V4 Y-MAIN
PCB: LJ41-02760A LJ41-02761A LG92-01200A BN96-03352A

Oh yeah.. just FYI, Sanyo, Phillips, and Samsung all use the same parts. Hopefully that will help your searching.

Aug 26, 2007 | Sanyo DP42746 42 in. Plasma Television

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