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well the new focus coil did the trick HV came right up and got a good raster.
tried a weak signal but could not get a horz lock, and could not seem to flop the horz lines. the pots are very very dirty, so not sure the horz pot was even working. I will pull the chassis and to a good cleaning of those and see if I can clear that up. There is a .47 cathode bypass cap on the horz AFC that is connected across the horz hold pot. If its one of those 200v jobs, then I would suspect it. Before I dig too deep I will scope the output from the sync sep to make sure I am getting a clean pulse as well. could also bee an AGC issue, I have had flaky pots do odd things to the noise invert and really goof things up, so that's why I like to look at the sync pulse before assuming anything.
Brightness and vert kept winking out as well do to dirty pots.
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02-28-2012, 10:21 PM
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