Re: m471i-a2 no backlight

OK, just got this same model of TV for free, no remote yet. Turns on, but counting from the bottom, I saw only the 2nd of 6 LED strings turning on. Opened it up, and on the power board, looking at the 6 MOSFET's in the OP's photos, the 2nd one is the only one not burned. If I understand budm's post correctly, does this mean the LED strings failed and took the MOSFET's out with them, now necessitating simultaneous replacement of the LED strings and the power board? Or should I try replacing only the power board? Thanks in advance.

Re: Sony Bravia KDL-52W5150 - Are These Symptoms Of A Bad T-Con?

But what about the temperature-triggered voltage regulator weirdness in the power supply described earlier in the thread?...

Re: Sony Bravia KDL-52W5150 - Are These Symptoms Of A Bad T-Con?

OK. What worried me about that was the mention in this thread that lower temperatures could lead to noticeable voltage differences. Is none of that significant either?...

Re: Sony Bravia KDL-52W5150 - Are These Symptoms Of A Bad T-Con?

Hi. I was at a thrift store and saw a TV on the shelf, stamped "AS IS, U FIX IT, NO RETURNS," and I figured I'd take a look, trying to turn it on right there in the store. It refused to power on at all, so I figured it was likely something simple, and I bought it. At home, I don't remember what I did, but I got it to power on. I speculated it was some kind of NVRAM corruption at play. I got sound but no picture, with the screen looking exactly like the first photo in this thread. After extensive searching...