Northgate OmniKey (and others) EEProm Dumps

[hellothere]

TL;dr I'll share all the eeprom backups I have here. I'll do backups for all the keyboards I come across that have ZIF eeproms, so enjoy! Share yours, too!

Quick details:
I have an OmniKey with a bad eeprom. I thought I could take the eeprom from another OmniKey and make it work, so let's buy a programmer! The one I bought was $80 on Amazon.

(Make absolutely sure that the programmer supports the chip(s) you're using. The one I bought supports 34,505 makes/models.)

I then bought some correct make/model eeprom chips on ebay. I got 4 for $20. In my case, the make and model of the chip were on the bottom of the chip, i.e. you have to pull the chip to see it. If you buy the Xgecu package, it comes with a chip puller. If you don't have one, I strongly recommend that you at least get one of these for $5.

Note that the the chip in the OmniKey I was working on is erased by UV, which is the reason there's a label over the chip. If you buy a chip that's not erased, you may need an eraser. They're $20-$30, but the reviews I've seen say that they all do about the same thing. There are also guides on how to build your own.

Unless I'm doing all this insanely wrong -- which has happened to me before -- it's pretty easy to do all of this!

Anyhow, attached is my first one. I have overly detailed info in the text file.

[jsheradin]

Nice to see that the TL866-3G supports the higher programming voltages! I got caught in a trap with the basic TL-866 a little while ago where it 'supported' an EEPROM but only in the sense that it could read it. It couldn't supply the 25ish Vpp needed to actually burn in a new image. I was able to get it to work a bit messily using a DC power supply and some transistors but it wasn't ideal.

[hellothere]

OmniKey Plus
Vendor ID: 222
Part #: KPlus
Lot #: 0C19
Serial Number: 06214x-90/01
FCC ID: GT6OMNIPLUS1
Date dial on top case: 89-10-19
Number on bottom (green) PCB: 8902270 Rev. 0.2

Chip bottom: Malaysia
8938MPW97286

[AMD]
AM2764
-155DC
12.5V PGM
940FSVB

[hellothere]

OmniKey Ultra

(Silver colored sticker, blue text)
Vendor ID: 777
Part #: 560,0020
Lot #: not listed
Serial Number: 0338x-0E
FCC ID: GT6OMNIKEYULTRA
Date dial on top case: 90-02-27
Number on bottom (green) PCB: 900125-rev 0.0 OMNIKEY ULTRA/PLUS/102

Brown (bottom case) PCB: PN 890717-00 rev. 0.1
OMNIKEY PLUS/102 CONTROLLER
Northgate Computer Sys., Inc. Patents Pending, 1989

Chip bottom:
Blank

Chip top:
White label: 6.03F
S27C64A
-15 FA

Had to skip ID check in XGecu.
Chip manufacturer is Philips Components-Signetics.