[sdiy] DX7 grounding?

[Dan Gendreau]

Okay, pet peeve time.

I have owned an origial model Yamaha DX-7 for about 15 years now and 
one thing that has always bugged me about it is that it does not seem 
to be properly grounded.

It only has a 2 prong power cable and when I run my hand over the 
metal case I can feel what I can only describe as low voltage 60Hz AC 
on my finger tips. Now I have never actually gotten shocked by it, 
but it still bothers me.

Have any other DX7 owners replaced the power cord with a 3 prong one? 
Do I just tie the green wire to the case? I think I will put in an 
IEC jack as well, just to make transporting it easier.

-Dan G.