Quote:
Originally Posted by rwagoner
I looked for bad/cracked solder joints and saw none (though I did re-solder a couple just in case) and unplugged/plugged each connector a few times to clean. Still has the issue.
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Cold solder joints are very rarely visible without a microscope. I would reflow absolutely everything is in the path of the issue, and everything on all PCBs that is either a heavy component like a transformer or large cap, or anything that receives stress like a connector or potentiometer.