Sony bravia xbr-43x830c

[Martin0101]

I have this tv that is complete dead.. it shows no power at all. No stanby light.. i checked the power supply voltages with the harness connected to the main board and here are the only voltages i get... need help to find out the problem..

Bl-err 2.38v
Stby 3.47v
Ac-off-det 3.47v

[nomoresonys]

Re: Sony bravia xbr-43x830c

Looks like you started another thread on same tv, what you want to do is just post on your same thread. That way all the posts are in one spot and can be easily read. An easy way to find your thread is use the thread tool and subscribe to your own thread, then it's easy to find in quick links.

[nomoresonys]

Re: Sony bravia xbr-43x830c

Originally Posted by will62 View Post
You may want to check a little further before buying a new power supply. This set has a self diagnostic function. When the uC detects a problem, an LED flash code is produced. You said that you had no LED status light. If you have standby voltage, but don't have a status light, it could be a main board problem.

Your BL_ERR is also slightly above the 1.9V cut-off, so you may have multiple problems. There are ways to force the power supply on, so that you can see if you have a board problem, or a backlight LED problem. That would require some resistors.
That is a good plan, I just didn't know how long the board would be available at that price, could do that testing to be sure, board will take at least a couple days to arrive, nice to have a spare tho.