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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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09-08-2013, 02:57 PM
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