[Coco] 512 Upgrade

[George's Coco Address]

 It's happened to me from time to time, when I fool around with the
motherboard, for some reason the GIME chips loses a connection in it's
socket.
 Pushing in the 512k upgrade will flex the ckt board and could move the GIME 
chip in it's socket.  It seems this can move it to a corroded area of the 
socket.

 Whenever I get a problem with one of my cocos, a re-seating of
everything(including the GIME) is done and the problem is almost always
corrected.

 George

----- Original Message ----- 
From: "Rick Ross" To: <coco at maltedmedia.com>
Sent: Tuesday, August 08, 2006 11:22 AM
Subject: [Coco] 512 Upgrade


Anyone who could help me I would be grateful :-)



I have had a new Tandy 512 upgrade lying around and a perfectly good cc3
with 128k. so I figured why not make a 512 that doesn't work!



I removed the existing chips and snipped c65 and c66 dropped the new 512
in....



Turn it on and get green with no text. Removed 512 and put the old chips
in - same thing a green with no text.



I am quite sure this has been seen before, if so can you give me a clue?



Thanks!

Rick






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