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Electrostatic discharge and JP-8080 test mode
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| nSCOURGE |
Hi, can someone please explain how to get into the JP-8080 test mode (the '8000 test mode start-up doesn't seem to apply to the 8080), and any corresponding button combinations?
Even though some responses to my posts(on other forums) have somewhat allayed my fears, I would still like to access the test mode to check if my '8080 has suffered any latent damage from electrostatic discharge that is otherwise undetectable.
On the day I got my JP-8080, I was too tired to set it up, so I slid it under my computer desk(only place there was room for it) so I could hook it up the next day.
In the morning, sitting in my office chair, I leaned over and lazily slid/jiggled the box(containing the JP) along the carpet, and out from beneath my desk.
I opened the box, and as I reached for the JP, I was horrified to experience a very slight static shock as one of my fingers brushed against the JP's left rack ear in prelude to lifting it.
I'm almost certain it was the JP which built up the static charge (from all the sliding and jiggling) and not myself.
I know this is a strange way to introduce myself to this forum, but there it is.
Thanks for any feedback. (I apologize to anyone who's seen me spamming other boards with this message, but I still haven't gotten any replies) |
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| halo |
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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| nSCOURGE |
| The JP uses a three pin plug(a three wire grounding type line plug), but was not connected when I experienced the shock. |
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| halo |
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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| nSCOURGE |
| Thanks for setting my mind at ease. :D |
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