Sol-20 revisited

From: Charles A. Davis <cad_at_gamewood.net>
Date: Thu Mar 5 13:27:09 1998

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_at_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

-- 
-----------------------------------------------------------
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-
-----------------------------------------------------------
Chuck Davis  /  Sutherlin Industries   FAX # (804) 799-0940
1973 Reeves Mill Road            E-Mail -- cad_at_gamewood.net
Sutherlin, Virginia 24594            Voice # (804) 799-5803

Received on Thu Mar 05 1998 - 13:27:09 GMT