Just one little thing.. how is the current supply made? If it's not 3 pins directly to the wall socket the case is insulated from any electronic component and an electostatic discharge can do no harm at all.
Anyways the case should be connecetd to groung giving your little charge loads of metall to spread without any buildups dangerous to electronic components.

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The JP uses a three pin plug(a three wire grounding type line plug), but was not connected when I experienced the shock.

Last edited by nSCOURGE on Feb-25-2004 at 03:03

Now as your case is grounded seperately (the third pin). There is absolutely no electrical connection of the case to any electronic component.
If you'd have connected first, the statics would have discharged through the 3rd line(Ground).

I made a little mistake in my previous post. Im case you have two lines, mass and ground are combined, providing a possible electrical connection from case to heatsinks to trandistors and chips. but the case might also be insulated (only in case of low voltage).

With separate grounding mass and ground may have different potentials thus case and electronics have to be completely insulated.
There's no way that discharge could have had any effect to your synth.

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DISCLAIMER:
The above text is believed to be derived from objective logic. No personal offence, implicit or explicit, is intended. Ambiguous expressions are to be interpreted in the less offensive way.

Thanks for setting my mind at ease.