BoggianoSoy

Thank you very much for the answer and that is exactly what I was doing, checking point by point and so far I have not found something obviously burned or something, approximately where are those "op amps"? maybe can i found something THANKS

Hi All! i am from Chile and apparently I have the same problem, but i have an M5, everything seems fine but there is no sound... my pcb schematic is different i don't know if it's the same "d23" or any clue what it could be in my case? and by the way what piece or part should I get , I'm not very good at electronics, that's why I ask you to tell me any clue of the exact name of the part, "L4P" ??? is that the technical name or BAT54 schottky-diode?? sorry if my question is very ignorant but i need to find it. If you can help me