Re: Samsung LE37B650 white screen

Well I don't have all the numbers but I think that's pretty conclusive.

Looks like it's soldering time ...

Re: Samsung LE37B650 white screen

I've read up on testing the AS15 chip. I think it's probably not necessary as I did the 'put your finger on it while the TV is turned on' test and it gets bloody hot after a few seconds.

.... but to be doubly sure I'm going to go ahead and measure the voltages as well. I've found the test pads next to the AS15-U chip, but my question is: Should I have all the numbers from 1-22? My pads start at one, two, then jump up in twos to 10, then 11, 12, 13. then up in twos again and ends on VG22.

So in total the numbers go from...

Re: Samsung LE37B650 white screen

Awesome, thanks....

Re: Samsung LE37B650 white screen

Thanks for the tip, that's very helpful. Shame I have to take a lot more apart, I was hoping these would be fairly easy to access and check at the same time as the T-Con board....

Re: Samsung LE37B650 white screen

Hi, I have the same symptoms on my Samsung LE46B650

I think aczelkri may have answered this in their reply already, but I will ask anyway:

Is there a way to diagnose if the problem is with the AS15 gamma chip on the T-Con board [B]OR[/B] if its a problem with one of the chips on the thin Column driver board?

Also, How do you get access to the column driver board to desolder the other chip as your TV service person did? I've got the back off mine now, with Tcon board exposed, but the column driver board...

Re: New Members - please post your introductions here

Hi, I'm Simon from Poland, found this great forum while looking to resurrect my Samsung LCD TV to use as a backup. Suspected T-Con issue. Can't wait to get stuck in.