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#11
12-14-2020, 03:35 PM
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Noisy sync from AFC diodes?
After replacing a few more electrolytic caps and the AFC diodes, no real improvement. I figure it's (the bad part) not affecting the vertical like the horiz anyway.
1966-RCA-CTC16XL a.jpg Then I decided to scope H-osc sync coming from the horizontal AFC diodes, it looks like the trouble may be what is coming out of the AFC network  into pin 2 of 6CG7 H-osc, also where a series RC network 12k resistor and .15mf goes to ground. I assume this network is meant to "filter" the wave shown below. 1966-RCA-CTC16XL b.jpg
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