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How to open the Korg Prophecy (to check the eproms)

 
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previewlounge



Joined: 09 Mar 2017
Posts: 2

PostPosted: Thu Mar 16, 2017 2:31 am    Post subject: How to open the Korg Prophecy (to check the eproms) Reply with quote

Hi All, first post fro me Smile

i'm glad to say, just purchased a Korg Prophecy.


would like to open the unit to see if the firmware eproms are soldered in or not, before going on the search for the mythical Firmware 20 Very Happy

Any advice would be awesome.

I'm looking at the underside of the keyboard now, serial number says 045490 (i hear it is possible to check if a Prophecy is a very early model, and thus having its eproms soldered in, although have not found a list as of yet).

got the Prophecy Service Manual pdf open, trying to figure out what screws to undo and what ones (if any) to leave in.

Thanks for any help ..

Ciao for Now,

Previewlounge in Tasmania
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thehighesttree
Platinum Member


Joined: 18 Nov 2011
Posts: 520
Location: Canada East

PostPosted: Sun Apr 30, 2017 12:33 am    Post subject: Reply with quote

Just check the service manual....looks brutal! I've never had mine apart in the ~3 years I've owned it, but being so heavy I assume there's a lot you'd need to sift through to get to the firmware EPROM. I'd recommend ID'ing what PCB has the EPROM on it with the service manual (can't check it, I'm at work). Once you establish this, start disassembling from the bottom and KEEP TRACK OF YOUR SCREWS! Line up a series of glasses if you need to and order them from first-to-last removed to you can retrace your steps.

If you're at the point of installing an EPROM, I probably don't need to warn you about static discharge. Good luck!
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