Upstar Model P250WT 19" LCD TV has no picture

[Findm-Keepm]

Originally Posted by Eric H

Well if it shows a spash screen then the panel must be working, unless the back lights crap out shortly after booting up.

Probably the case - I had an AOC that did just that - AOC splash screen and then nuthin' -

Shine a flashlight at a low angle across the screen while it's running. If the picture is there, you can see it. That tells you that the CCFLs are bad, and you need to pull them, measure them, and order a pair. Get several more than you need - you will break one, for sure. I've replaced CCFL on about 8 sets, and had only one go easy from start to finish. eBay is full of the CCFL lamps - search "backlight lcd tv" for replacements. They are measured in mm length.

Also, if you are going to troubleshoot LCD sets, this tester comes in handy:

http://www.ebay.com/itm/1pc-12V-CCFL...-/170906315632

I have the HR Diemen TL1040 (mine was 90 bucks, but was the original back in 2004, before the Chinese made them), and it is a great go-no go tester for CCFL backlights for LCD TVs, monitors, and laptop screens.

Cheers,