Brightness weirdness on Philips 20PT1553-00
I recently obtained an Philips 20PT1553-00 TV set. The picture is
usually relatively dark. I have to turn the brightness and the contrast
fully up to obtain a viewable picture. The effect of the
brightness-control is nearly non-existent. Sometimes (very seldom) the
whole picture brightens up and the brightness-control works. This lasts
usually bwetween 5 and 30 seconds. After that, the picture turns dark
again.
Has anybody experienced something like this before? Does anybody know
what could be wrong?
Thanks
Eberhard
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