![]() They must have failed waaaaay down into the picofarad range to give that feeble, tinny and bass-less sound reproduction. Those capacitors are not subjected to taxing applications. odds, of its companion on the other channel, ALSO being bad. That full volume and normal operation due to C514 was a definite surprise to me, as my suspicion was certainly to be with IC502 at fault. Of course you had no volume control effect, since you were bypassing it. Glad to hear that you speeded up the tracing process, when you unexpectedly happened to touch a keyboard key, while having the BA5417 audio input pin # 12 connected to the Output pin 1 of the left channel of the IC502 dual op amp preamplifier.Īnd THEN the strength of that keyboard note, left no doubt about the BA5417 working and being at a decent power level of output.
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