Quote:
Originally Posted by kf4rca
I agree that its the input coupling cap from the sync separator. As caps get old they no longer pass low frequencies (30 Hz.) but they do continue to pass high frequencies.
Does that set have a vertical integrator network? Thats a three legged ceramic network. They go bad too but can easily be duplicated by discrete components.
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We do have a hybrid circuit, yes. Connects from pin 6 on a 6U8 (Sync Nosie Sep. Lim.), through itself, a 22K resistor, .01 cap I replaced and to pin 1 on the 12BH7. Seems to consist of three resistors (22k, 8.2k and 8.2K) and three capacitors (.002, .005 and .005) While I was trying to figure out my width control problems I was testing it on the bench to see if it least ohmed out right and that seemed correct but never tested it any further.
I know someone here has a copy of the schematics. My digital copy is currently on a server which is a little...sick.