Hello Folks, I've completely exhausted the only two brain cells I have left. I recently serviced and restored a WM-2, the end result was very good but with one exception. As I disassembled the unit, what appears to be some sort of grounding 'spring' fell out. I have no idea where it goes. The symptom. When you initially touch the body, any body screws, or the potentiometer, you can hear light static pops that eventually dissipates. I cannot find this part in the exploded view of the service manual, the closest thing 'might' be Item 4 on page 15. I went so far as to buy another WM-2 to identify the part location only to find out that it was a different hardware revision and could not find this spring in the second unit. This spring came from one of the first production Walkman II [WM-2] with the FWD play button vs. the PLAY play button. I've attached an image of the piece, if anyone with more than my two brain cells can identify where it goes, wow you will be the hero of the day. Cheers! Norm