bruce@ektools.UUCP (Bruce D. Nelson ) (12/24/86)
I recently installed the ram upgrade board from Diverse Data Products
(1805 Northeast 164 St., N. Miamai Beach, FL 33162, 305-940-0458).
The installation went reasonably easy except for a few problems I ran into
at the end. The steps are basically:
1) Get to the mother board.
2) Remove the capacitors on either side of U30.
3) Place a clip over U30 (which gets the address signals to their board).
4) Remove the video shifter, insert their socket, and place the shifter in it.
5) Solder 3 wires to 3 lands under the MMU.
6) Put the computer back together.
Steps 1-6 took me about 20 minutes. Much more enjoyable than piggybacking the
ram chips and soldering over 250 connections per the "original" upgrade.
The problems I ran into were:
1) The socket that goes between the video shifter and the original socket sits
a little bit high and the shield over the shifter doesn't fit. I had to cut off
about 1 mm of each lead of their socket.
2) The tape they used on the back of their pc board still let some of the pins
of their components pop through. When reassembling the shield, the pressure on
the board popped some of the pins through so they shorted something.
Fortunately :-) it didn't cream the ST. I had to put some thick foam tape under
the board.
3) The fit of the board under the shield is very tricky. The instructions,
which are otherwise quite clear, don't give a hint on how to make it fit.
took a lot of trial and error to get it to fit under the shield.
Due to the problems I ran into, it took about 4 hours to get it right. But a
friend of mine who did it after I gave him the above info did it in about
1 1/2 hours (he also had trouble due to problem #3).
However, when it was all done, the results were worth all the trouble. As I
said, I think it was still easier than 256+ solder connections.
I have no connection to Diverse Data Products, and the opinions expressed are
my own and do not necessarily reflect those of my employer.
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Bruce D. Nelson
Product Line Systems
USPS: EASTMAN KODAK CO., Dept. 407, 901 Elmgrove Rd., Rochester, NY 14650
VOICE: 716 726-7890
UUCP: {allegra, seismo}!rochester!kodak!ektools!bruce
ARPA: kodak!ektools!bruce@rochester.ARPA