5 Mar
1998
5 Mar
'98
1:27 p.m.
Marty wrote:
Thanks Jim. Have you replaced the video ram in the Sol-20 before?
Also, do you know if parts are still available or will I have to
cannibalize from a similar vintage pieces part?
Marty
snip
The '$'s indicate a single bit error in the video RAM. Bit 3 is stuck.
(wedged, dead, etc...)
-jim
---
jimw(a)agora.rdrop.com
Something else that would be worth looking for. There _MAY_ be a little
piece of debris, solder, rosin, dust, etc that is providing an
electrical path on one of the data lines from the video ram. Won't hurt
to look with a magnifying glass.
Chuck
--
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He, who will not reason, is a bigot; William Drumond,
he, who cannot, is a fool; Scottish writer
and he, who dares not, is a slave. (1585-1649)
While he that does, is a free man! Joseph P. 1955-
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Chuck Davis / Sutherlin Industries FAX # (804) 799-0940
1973 Reeves Mill Road E-Mail -- cad(a)gamewood.net
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