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It would probably take an afternoon to test every component on the board and reflow all of the solder.
Of course, the IC on the on board could also be at fault, which would be harder and possibly more expensive to replace, but it's worth spending a day and making one perfect board to test with first
Without the schematics, I wouldn't know which pins on that IC to probe for a chroma waveform, but possibly one of the other guys here with more 70s TV experience remembers what IC it is and what it's doing
But first things first; lots of these issues can be just bad solder joints and/or toasted passives
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08-15-2026, 11:54 AM
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