2 seconds to black with a twist

[sleepingciv]

Ok i found this site via Google and read the post about 2 seconds to black.

I have a Sanyo DP42848 tv. Got it for free because the guy said it had sound but screen went black.

So got it home and tried it, and he was right turned on stayed on but 2 seconds later the screen went black, but tv stayed on.
I read in the 2 seconds to black post that I might be able to see a image with a flashlight so I went and tried.
I turned the tv on, and it stayed on....
I played a dvd and just played.
But it made a squeal sound. So thats my question the squeal sound. It last maybe a minute then goes away.. I left the tv on for an hour or so played and worked fine.
so any ideas? It is a bit dusty so figured pop back off and blow it out.

Heres a video with the squeal.

https://www.youtube.com/watch?v=XAUT...ature=youtu.be

[CapLeaker]

Re: 2 seconds to black with a twist

Any straight shot, high res pictures from all boards to go with it?

[comptek]

Re: 2 seconds to black with a twist

top and lower showing dark lines looks like a few lamps have failed thats why the noise is there ?

[sleepingciv]

Re: 2 seconds to black with a twist

Any straight shot, high res pictures from all boards to go with it?

No I don't. I can try and get some.

top and lower showing dark lines looks like a few lamps have failed thats why the noise is there ?

Very possible I'll check into that I dint notice those

[sleepingciv]

Re: 2 seconds to black with a twist

Ok here is a side shot. Can see like 3 lines. Can't see them looking straight at it tho.
Also the squeal noise last only a few seconds this time.

[budm]

Re: 2 seconds to black with a twist

It looks like some of the lamps are not on.

[sleepingciv]

Re: 2 seconds to black with a twist

It looks like some of the lamps are not on.

Are they expensive or hard to replace?

[budm]

Re: 2 seconds to black with a twist

https://www.badcaps.net/forum/showth...=Sanyo+DP42848

You can also search the thread by typing in 'SANYO DP42848'
https://www.badcaps.net/forum/search...archid=5632307

[CapLeaker]

Re: 2 seconds to black with a twist

could be a bad transformer on the inverter board too.

[sleepingciv]

Re: 2 seconds to black with a twist

Ok finally got some time to work on this tv. It went back to doing what it did before. Stays on for a second or 2 the no picture but tv stays on.
Tried to get good pics.