CTC10 Finally a failure

[dtvmcdonald]

That's similar to earlier nightmare RCA horizontal circuits. Its a
nightmare due to obnoxiously complicated feedback. I had terrible
problems in my CT-100, fixed only by replacing all caps and resistors
in the circuit. All replaced parts tested good, at least at room temp and
zero volts. Check for obvious bad parts. If there are none, try
a full recap and re-resistor with overrated resistors.