84 GE 25PM-C Color console problem

[jg6364]

Originally Posted by Findm-Keepm

The 36V source feeds the tuner and the audio output. Your problem probably lies in one of three things - a shorted device at the powers supply, or a short in the tuner or audio amp. Very few components to check - I'd start with Y932, C937-939, and then pull the audio output to see if the audio is pulling the 36V down if not, it is most certainly the tuner.

Cheers,

thanks
I checked c937-939, all good. I will go back and check y932 , and then go from there.

Jeff

[zeno]

Originally Posted by jg6364

thanks
I checked c937-939, all good. I will go back and check y932 , and then go from there.

Jeff

If its the diode use the right one. ECG552 IIRC the regular
diodes overheat & short at 15khz.
For the tuner there will be a resistor then a 32V zener to ground.
Suspect that. If audio the output IC almost a sure thing.
I will pull the manual later..

73 Zeno