But I subbed that whole board with a known good one, and it did the same
thing......
"me" wrote in message
...
"Chris F." wrote in
:

I've got two of these with the exact same symptom. The backlight cuts
out
a few seconds after powering, and stays out until the the unit is
turned off/on again. There are two boards in this; the power supply,
and signal processing/CPU. I subbed the power supply board with a
confirmed good one from another unit and got the same result, ruling
out that board as the cause. Also tried disconnecting the backlight
cables one at a time, but no change. It appears that a signal from the
CPU board is causing the backlight to shut off. Is there any solution
other than replacing the CPU board?




I saw somewhere that replacing the capacitors by the HV coils for the back
light fixes the problem (this works as I have used it to fix the problem).


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