So I recently fixed my first main board, I should say diagnosed and replaced, to get a 50" Sharp up and running again.
I've got my eye on another one that's acting up. I haven't gotten my hands on it yet. It's a gamble. But for a 5 year old tv that has seen little use at 70 inches I'm intrigued. I'm pretty sure these things divide the screen up into four sections on the LED driver side, is that right? I had 4 24v out's on the 50" and it's a similar model. Just a wild guess
It powers up fine, so for now that rules out power board issues, but only gives about a quarter of the screen and it's blue. Nothing else.
Could this be a driver issue? Happened one day to the next. No falls or anything like that, just boom: it's like this, see attachment.
It's not a lot to go on but any ideas? input? what to look for?
I can pull the back off and get relatively far with my DMM but untill then I'm looking to get as much info as possible on probable problems. A lot of p's there...
I've got my eye on another one that's acting up. I haven't gotten my hands on it yet. It's a gamble. But for a 5 year old tv that has seen little use at 70 inches I'm intrigued. I'm pretty sure these things divide the screen up into four sections on the LED driver side, is that right? I had 4 24v out's on the 50" and it's a similar model. Just a wild guess
It powers up fine, so for now that rules out power board issues, but only gives about a quarter of the screen and it's blue. Nothing else.
Could this be a driver issue? Happened one day to the next. No falls or anything like that, just boom: it's like this, see attachment.
It's not a lot to go on but any ideas? input? what to look for?
I can pull the back off and get relatively far with my DMM but untill then I'm looking to get as much info as possible on probable problems. A lot of p's there...
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