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August 25, 2014

Granularity of Repair: fixing the volume control potentiometer in a Pioneer VSX-3800 receiver

Filed under: blog,electronics,environment,repair,Uncategorized — admin @ 5:14 pm

For several months, the primary audio system in Gimli’s media room (well, the couch is Gimli’s)  has had the annoying problem of an intermittent left channel due to a problematic volume control element, one part in a triple-ganged, motorized potentiometer in an otherwise great Pioneer VSX-3800 receiver . I’d tried the usual fixes such as a couple of “control cleaner” sprays, a few times, with only temporary success at best. So, based on previous similar experiences, this electronics doctor decided that it was time to operate on the patient. This time, I had no replacement part on hand, and it was looking impossible to get one shipped to me quickly. Here’s the procedure:
Pioneer VSX-3800 the problem pot (more…)

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