...video blanking is a safety circuit in this set to prevent damage to the picture tubes. If you understand how these circuits work, I do have the chassis(RA-6) Manual for this TV set. if you think this ...
...video input with nothing connected--you turn the Blue screen down until the set stays on and then very slowly turn it up until you see a slightly Blue screen with or without diagonal trace ...
...trouble shooting tecnics and most importantly a schematic to check out these circuits.Maybe a diode? Maybe a vertical IC ? When the power supply has an overload it will try to start maybe three times ...
...video, it appears as if when the screen flashes, the convergence is off in the center of the screen. I had a sears repair man out to look at the set, and he said that he wasn't sure what the problem ...
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