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Old 12th August 2007, 11:37 PM   #1
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Default CS800 puzzler.....

got an old style (quasi-comp, heat sinks on top of chassis) Peavey CS-800 in for repair....... never seen this before- right channel is oscillating at 200khz with no input. any input signal frequency modulates the 200khz sine wave, which is btw, 10vrms or so. i'm looking up the schematic now. if i find anything, i'll post it.
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Old 12th August 2007, 11:50 PM   #2
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AHA!!!!!!!!!!!
found it in 5 minutes!!!!!
if you're keeping notes, write this one down.......
U2 RC4558 op amp
replaced, and amp is as good as new
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