Question about Flat Panel Televisions
I just got a used Sharp Aquos LC-C3242U LCD, Cheap. When it powers on the screen powers up normally, then go's black in about 1 second. The audio still works. I tried to leave it unplugged for several days (I know this is more then necessary) and plug it back in. But I still get the same issue, so it was not a hard reset that it needed. I do hear a faint sound when I put my ear next to the back and turn it on. It sounds like a high pitched buzz, then quits when the screen go's black.
I can't find a service manual for it, they said it is too new for them to be out yet, (I don't believe that).
Any ideas on what the problem may be?
I have (had) the exact same problem with my Sharp LC40C32U. I purchased it at CostCo 1 1/2 years ago. Because they changed their return policy I thought I was out almost a $1,000 but decided to ask them if they could do anything. Wouldn't you know they had an extended warranty that was still in affect. I called their service people and spent over an hour on the phone with them. After going through all the troubleshooting steps they arraigned for an in home repair (free of charge).The technician that came new exactly what the problem was and how to fix it. The kicker is no parts were bad, over time the 2 grounding points on one circuit board were not making contact correctly. He explained that the problem would be worse when the set was cold, as it heated up the grounding points would make a better contact. That's why it seemed to occur everyday first thing in the morning. He took the back off, removed the circuit board and cleaned the contacts. When he put it back together he tightened the screws down fairly tight, explaining that the factory does not tighten them enough which is why I (we) have the problem in the first place. This took all of about 20 minutes. I have not had any problems since. If you live in San Diego, CA the company that fix'ed my Sharp is Advanced Electronic Service.
Posted on Aug 29, 2008
I dont know about main module going bad or not i do agree with mainboard not making contact. the guy posting before me probably needs customers for his business mine does the same think usualy in the morning when is cold. my solution: turn it off and tap it gently on top than it works like a charm.
Posted on Dec 29, 2008
Main module is going out...$350+ to fix
Posted on Feb 08, 2008
Do you get any indicator lights at all, if you do, then the 5v standby circuit is working, if you get nothing at all, then the main power supply will be the first palce to look, blown fuse? capacitors?
Posted on Nov 06, 2009
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