Question about Sanyo DP26648 LCD TV

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Unit turns off after 3 to 5 seconds

I turn on the TV, the light comes on, the source pops up saying PC, which is what I had the source on to begin with and then turns completely off after 3 to 5 seconds. In that time I can turn on the menu but it shuts down right after the menu pops up.... Can anyone tell me which capacitor needs to be replaced?

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  • Sanyo Master
  • 749 Answers

This does not sound like a capacitor problem.



Bad capacitors usually cause the TV to have a SLOW startup, not so much to shut off after they are once started. Of course both are possible, but the former is a whole lot more common (based on my experience).



Also, bad capacitors are usually easy to spot even with a naked eye. Just look at your power supply board and see if there are any that are bulging.



Not seeing any is not a guarantee, but more often than not is sufficient to rule that out as a possibility.



Finally, here are some repair and replacement alternatives for DP26648 power supply issues:



http://www.coppelltvrepair.com/search?q=DP26648

Posted on May 08, 2014

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Posted on Jan 02, 2017

dsacco86
  • 1077 Answers

SOURCE: Green power light comes on, the turns right back off. No picture. Please help

I'm not sure what TV model you have. But, thing I can tell you is the most common problem.
Most of the time with flat panel TVs, the power supply for the screen fails. And the TV normally turns itself off to protect other parts in the TV from being damaged. Basically " Protection Mode".

You can try leaving the TV unplugged for 30 minutes so the TV can reset itself; then try again turning it on. If it doesn't work after that, it's time for the TV repair shop.

Posted on May 21, 2009

  • 12 Answers

SOURCE: 3 YEAR OLD SANYO DP 32746. SHUT ITSELF OFF, CAN NOT TURN BACK ON

If you leave the tv unplugged for 2 days (atleast) then plug it back in and try to turn it on and if it comes on its the power supply board. If it comes back on it will probably shut off between 30min to 4hrs and you would have to unplug it for 2 days again. All the power needs to drain out of the tv. If thats the case take the back pannel off and check the part number out on the internet. Not hard to do becarefull touching things the power supply does store a little bit or shock in it. Good Luck.

Posted on Dec 16, 2009

Testimonial: "while we did not unplug the set, we let it sit for 2 days and we were able to turn it on by the remote & manually....does that still sound like P/S"

  • 608 Answers

SOURCE: when i turn on the tv , it shuts itself off in 2

I had a similar problem with my Phillips 42 in. LCD HD TV.

Here's the problem. The Power Supply Board. I opened my TV up(warranty was up of course) and found several bad capacitors. Phillips and several other companies were sold capacitors that although were highly rated failed within 5 years because of a lack of preservatives. All sorts of electronic equipment is now being effected due to these defective capacitors.
Solutions?
1. Take it in and have it fixed
2. Open it up, check the board for faulty capacitors(bulged or leaking) Buy a new Power supply board and install it.
3. Remove PSB, remove faulty capacitors and replace with compatible new ones.

Hope this helps

Posted on Dec 09, 2010

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