Reply To: Beomaster 4400 – Sudden drop in sound?

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I believe I found the culprit but need to check this further. C14 at 2.2uF was changed into a film capacitor. I replaced this on a hunch to a polarised electrolytic. It appears the audio is back now. But let it play for some time to see if this really works.

Sometimes you need to have a polarised cap in the circuit.