Question about Televison & Video
Just when you turn on the tv it's flatout the volume when you turn it down its still flatout until you reach 0 volume then there is no volume can't regulate the volume tried everything nothing seems to work
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Posted on Jan 02, 2017
Hi there. Are you familiar with board level repair for such products ? Your problem is most likely hardware. Either some of the final output transistors are fried, or it's a dsp problem, a regulator, a diode, a transistor in the circuit.. it could be a lot of things. But if everything was working fine and it quit someday without a change in the system's setup, it really looks like an hardware issue ! Do you have a way in the manual, that sets factory defaults, a kind of reset ? A lot of such units do have that. Try to unplug/interchange speakers as well, a shorted speaker could make the amp go nuts as well, but i wouldn't bet on it. Still, i'd check that out. Hope that helps ! cheebster.
Posted on Jun 26, 2007
Did you have any luck? My LG is stuck in demo mode too. Menu button doesn't work, and keylock was on as default so I can't use the buttons on the TV itself.
Posted on Nov 30, 2009
You probably have some defective filter capacitors in the power supply. The tops of them may be domed instead of flat. Be sure to replace them with same values listed on the originals - slightly higher voltage rating is OK, but no less! Make sure they are rated at 105 degrees C and not 85 degrees.
Posted on Apr 03, 2010
SOURCE: Crystal Surround Air Track after
Hi, I have a hunch that you have the connections wrong on back of TV. Make sure they are + to + and - to - and right to right and left to left. Not the other way around. If these are OK check if fuses are OK. ( on some models). Hope that helps to solve your problem.
Posted on Jun 08, 2011
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