원문 게시자: Chris Stables ,
So you have replaced all the charging circuit. If this was happening to me I would remove the audio ic and run jumpers. The H12 and J12 pads are known to fail and they end up at tristar. I would also run a jumper from D12 to G12 that’s the SDRam pads and the trace between them is known to break, this also goes to the tristar chip. While you are running jumpers you might as well run the D12 one.