Amplifier: Vector Research AM\FM Stereo Receiver VRX-2700This oldie is linked to the 'sound-out' socket of my desktop computer tower and drives a couple of equally old Wharfdale speakers.Last couple of months, the right channel has started 'crackling'.It's not the right speaker, because if the speakers (choice of A or B sets) are turned off, and a headphone plugged in, the same noise comes through the right-hand earpiece. It's not the volume control because rotating it doesn't change anything.My guess is that the right channel output circuit is duff.Problem:1) It's probably not worth spending a lot on this unit, besides...2) Queenstown (Otago, NZ) is woefully short of amplifier fixers.Does anyone have a suggestion about what I might do to fix this problem?I'm an IT serviceman, so I know a bit about motherboards, and I'm reasonably handy with a soldering iron, but that's the extent of my expertise. Advice appreciated.
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