31 Aug
2004
31 Aug
'04
10:23 a.m.
From: "Barry Watzman"
<Watzman(a)neo.rr.com>
I'd say that it's not working. The random display does suggest that a lot
of the video card is functional. However, it also suggests that the ROM
monitor on the CPU card isn't being run, which would clear the screen. This
could suggest bad memory or CPU or both, but in any case I'd say that,
contrary to what the seller says, the system is not functioning properly.
Hi
I'd tend to agree with Barry. I have 2 Poly88's and one 8813.
This is an indication that the system is not running. The video
memory quite commonly has failures but this usually shows up
as a chunk of the video not responding correctly. The video
uses 2111 chips ( often 9111 populated ). I am seeing some
quadrant like behavior so it might just be a lot of bad video
RAM. If anyone gets this that is on the list, I can help
them bring it back to life. Finding some of the RAM chips
that work may be an issue. I went through a pile of these that
Achor Electronics had and found only one in three that was
any good.
The fact that the disk seeks is a good indication though.
If it is in fact doing this, the ROM's must be doing something.
Dwight