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Panasonic TX29AD50F (Euro-3) - red retrace lines

A

ANDREW

Jan 1, 1970
0
Hi,

I have a Panasonic TX29AD50F (Euro-3 chassis) - that is showing red
retrace lines if the room is dark. When the screen is supposed to be
black it shows faint red with red retraces. Otherwise the picture is
fine. Colour balance is fine for dark and bright images, picture looks
fine, it just seems like the red gun doesn't shut off when it is
supposed to.

Service mode settings are all normal, and the 'bug' doesn't adjust
away anyway. So till now I have just ignored it - it's only annoying
if the room lights are off.

Anyone have any experience with this problem on other tv's - could it
be something as simple as a resistor on the crt board? I already have
schematics to help me find my way around.
 
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