For us new guys "this is easy" is not a very helpful statement or comment. I am trying to learn and absorb as much as I can. For me, no troubling shooting is "easy" as of yet. I did these voltage and resistance tests on the advice of others on this forum who are trying to help a new guy trouble shoot issues that he has not dealt with before.
Now, thanks for the rest of your comment b/c now I think I understand what might be happening. If the coupling mica cap (think it is a 220 pf/500 v) between the osc and output tube is bad, it might cause this issue, and thanks to your comment I now understand why. Appreciate it!
Quote:
Originally Posted by miniman82
This is easy, not sure why you're making all these funky readings but...
Your horizontal oscillator probably stopped running. Easiest thing to do is remove the 6CD6 and scope the grid pin for a waveform, if it's there you have other problems. If not, investigate why and trace it back. If the coupling cap between the oscillator and output tube is leaking, you will have 0 or positive DC voltage on the grid of the output tube when it's installed whether the waveform is there or not- that's BAD. There should be normal negative grid voltage on the output tube when things are working like they are supposed to. This is the #1 cause of melted output tubes in TV sets.
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