|
Silicon control rectifier.... Those RCA are notorious for having those fail, but usually it's because of an underlying problem like lack of horizontal drive pulse, etc.
Unfortunately, I have very, VERY limited experience on those early solid state RCAs. That's a CTC-47, which is similar to the CTC-40/44. Not having the schematic in front of me, I can't comment on it. But I'd start by tracing from the horizontal oscillator (see if it's running), then down the line to the horizontal output. If the output SCR is blown, and the horizontal drive pulse is OK, then it could either be a plain old blown SCR, or you could have a load on the high voltage (bad tripler (quadrupler in that set???), or a shorted flyback, etc.
DO save that set!!! It's rare, and you will eventually get it working again.
Charles
__________________
Collecting & restoring TVs in Los Angeles since age 10
|