Quote:
Originally Posted by Username1
That is coming from inside the set. And it is coming from the horizontal circuit somewhere. It is easy to see because it occurs regularly and keys off the horiz. sync.
it is occurring 10 times or there about during the scan. So from the pulse to trigger the 1/15734 it is allowed to "ring" and cause interference. This could be a poorly decoupled r/c, or, l/c circuit. You would need to check waves with a scope, look for fuzzy waves, there could be a ringing, that you would have to look up at that frequency for.... 10 in the space of 1/15734 That is a ringing of a pulse..... Look for decoupling caps where there are high voltage 1/15734 pulse....
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Forgot to let you know that I did recap the entire chassis except for the sound board. There isn't an old electrolytic left. I even changed them on the bipolar one on the video processor module.
I'm trying to get my hands on a better scope. It was hard enough for me to find the waveforms with the scope, but if I have to count them, I might lose my mind.  Maybe I can get them on this scope. I'll give it a try, but I'm sure the only hope is a better scope.
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