Quote:
Originally Posted by miniman82
Probably bad peaking coils (the dreaded white crusty ones),
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Its unlikely a single peaking coil could cause that, it would have to be more than one in the DC restorer circuits.
My CT-100 that I restored last summer had the same problem at
first light, and it was a bad resistor in the CRT screen/brightness
divider chain. However, my set still produced a (color) picture of
sorts with the master brightness all the way up and the color
gains up. I don't think that any single peaking coil can destroy the picture,
just remove R, G, B, or luma.
Also ... my set was frequently displaying the same symptom as the OP's
last fall. The set was perfect! The cause was a bad cable connecting
video to the input of the RF modulator; changing to a station
with no signal restored perfectly normal video noise.