Answer to "Why does Casio CZ-5000 stop outputting audio?"I tested the audio path in the M5153 AS1M injecting audio to the 3 pin input conector and the sound through the outputs and the headphones was ok. In my case sounds everything distored L and R the same thing, but not an” analog distortion” it sounds like a a bad DA conversion. I have disassembled all the boards, check the soldering, wires, power supplies DC levels and ripple check + - 15V and 5V…..I have clean some humidity stains with isopropyl alcohol….reassembled all the parts….but the issue still happening. I have no luck.