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You can try to go back to factory settings.
After that disconnect the power from the TV and wait for about an or two hours. Then put on the power and try to make the installation complete from the start.
Sounds like a power supply problem that typically is caused by a power surge of some sort. Check with tvrepairkit. com for their power supply kit to do the repair yourself.
That cable not only carries audio but it also powers the sub and other channel amplifers. Even if we could supply the pin-outs for the channels I'm not sure what we could do to provide subwoofer power. We're talking about a major rework.
This is a highly proprietary design, meaning it's really not very adaptable to normal spec audio equipment.
There's a flat-fee repair service for the receiver ($99.95, free return shipping):
You have intermitant problems which may be caused by contact resistance or circuit overheating.After it cooled down the tv starts again. Leave TV on standby at all times.
the problem is inside th vga hdmi board ,i have repaired 2 of these
units the 37 inch version and found a bad 100 mf 10 v capacitor . little bit of soldering/de soldering skill is needed .
cost of cap 0 dollars got it from old radio.
ernie
Your power supply is bad. This model came with a bad design. Your supply may have a green light on the black box, but it is putting out low voltage or amps. Replace it and you should be good to go.
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