Thanks, Eric. Heater is a new term for me.
Actually, I found something on the web and took pieces from that.
http://www.vintagetvsets.com/ctc7.htm
It said:
My first attempts to check the chassis led to the destruction of one of the 5U4 rectifiers due to a short in one of the filter capacitiors, fortunately nothing else (like the power transformer) was damaged.
So in one of my repair books, it connected a too small picture with the 5U4. That's why I wrote the scenario as I did. But I'd already mentioned he'd brought the set to the shop, so I figured he'd need to test the tubes in the shop (you guys are always testing tubes and I thought that was the first step).
Sorry that this is such a foreign language to me. I appreciate your help.
Quote:
Originally Posted by Eric H
No way a Tech would test all the tubes first thing, he'd have a pretty good idea what section the problem was in and start there.
As David mentioned the 5U4's would be the first on the list to test in this case, also a shorted filter would most likely take out the Heater in a 5U4 making it very obvious at a glance that it was bad.
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