Hello My Sony Wm-36 won't power on no matter what. I've tried cleaning the battery contacts and re soldering various points on the circuit board to see if there are any bad connections and The micro switch when you press play is fine. I've looked at the circuit board closely and everything looks good. This model appears to use the same basic mechanism and board as other budget Sony's from around that time (WM-31,WM-41, Wm-f31, Wm-2011 etc.) Any advice on what could be the problem?
