Sol-20 revisited

From: Marty <Marty_at_itgonline.com>
Date: Thu Mar 5 08:18:58 1998

 Thanks to all for the hints, help and tips on the problem of getting
 this Sol-20 running. I fired this up last night but the screen didn't
 appear as I remember it last time> I must be losing my memory.
 All testing was done with the Sol-20 barebone, no S-100 add-on cards
 installed.
 
 The screen appears as such:
 
 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
>$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
 
 The prompt > is at the beginning of the second line, and this pattern
 is repeated in all 16 rows, save the second where the prompt appears.
 The upper case light and local light are on, the shift lock light is
 off. The keyboard doesn't respond except for the - key which is to the
 left of * on the numeric keypad section on the right.
 
 Next, I disconnected the keyboard cable (after powering down for a
 minute or so) and get the exact same result as above, less the upper
 case and local lights on of course.
 
 Finally (after powering off) I removed the SOLOS prom board and of
 course don't get the prompt > but get a new video display repeated
 from top to bottom of an equal sign '=' followed by a lightning bolt,
 this pattern repeats = then lightning bolt (I cannot reproduce the
 symbol) endlessly from top to bottom.
 
 I also tried a different RG62 video cable in all tests and get the
 same results.
 
 
 Thanks again for your help-
 
 Marty Mintzell
 email:marty_at_itgonline.com
Received on Thu Mar 05 1998 - 08:18:58 GMT