1968 Zenith 20Y1C50 chassis - advice needed

[JohnCT]

In addition to the focus rect stick and carbon tracking on the flyback phenolic that Zeno mentioned, you might have an internal arc gap carbonized inside the CRT socket. If you have good hearing, remove the socket and put your ear *close* to the socket and see if you can hear any internal arcing.

John

[joe111671]

Originally Posted by zeno

If think the DGS is stuck on just unplug the 2 red wires & put a jumper on the chassis pins. Thats usually just a broken thermistor.

73 Zeno
LFOD !

You nailed it Zeno. The thermistor was not only broken, it was gone. For now I twisted the leads together, gave it some solder and cured that.

Originally Posted by JohnCT

In addition to the focus rect stick and carbon tracking on the flyback phenolic that Zeno mentioned, you might have an internal arc gap carbonized inside the CRT socket. If you have good hearing, remove the socket and put your ear *close* to the socket and see if you can hear any internal arcing.

John

Thanks for the input on the focus, guys. I'll tackle that as soon as I can figure out where to mount the replacement caps. They're still jumpered in, and the set is sitting on its side till they're put in properly. I haven't figured out a good place to mount them without removing the chassis.