Got another freebie and I think i have diagnosed the basic problem. The power board appears to test good. Symptoms are Power light comes on red and will go green when unit powers up but there is no picture. After checking the back light inverter I found the feed is as follows:
VCC 12.10
VCC 12.10
EA 4.767
Adj 0
Ground 0 ohms
Ground 0 Ohms
There is no voltage at the inverter plugs feeding the back lights. I checked F1 and it is 0 ohms.
I think I have a bad inverter board thoughts?
My freebie is doing the same exact thing, I get a quick flash of light at the bottom of the screen but I cant see an image, not even with a flash light to know what selection it's on ( cable, DVD, etc. ).
I have it hooked up to cable & don't see or hear anything.
I found 2 fried Ceramic Capacitors # 5J 3KV near the outsides of the inverter board near where the back lights hook up.
Ebay has several different versions so I'm going to try to find the correct ones and replace them, Ill report back if that fixes it!
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