DEC Professional 350 - video issue

Paul Anderson useddec at
Fri Apr 10 23:20:16 CDT 2015

I might have a spare board and maybe even a print set. I'll try to check

I plan on selling all of my DECMATE, PRO350 and PRO 380 systems and parts.
A list member inquired about it several months ago, but never got back to
me. Or maybe I dropped the ball...


On Fri, Apr 10, 2015 at 2:35 PM, John Ames <commodorejohn at> wrote:

> Back in November I dropped in on a list member's moving giveaway and
> came away with some DEC stuff, among which was a DEC Professional 350
> with keyboard and monitor. As the previous owner informed me, the
> video isn't working; there's no picture on the monitor, but there's
> visible sync lines, and the diagnostic lights on the back of the unit
> indicate an error with the bitmap graphics card. I'm pretty sure it's
> an issue with the card and not the slot, since the error moves with
> the card when I install it in one of the other slots, but I'm not sure
> what to look for on the card itself - nothing is socketed, so it's not
> chip creep, and the card connector looks to be in good shape.
> Does anybody have any advice for diagnosing and repairing this? I'd
> really like to get it working. Failing that, does anybody have a spare
> for the video card? (It's DEC part number 54-15138.) I've got a
> Rainbow I'd be willing to trade for a working one (base unit only - I
> don't have the facilities to test it, but according to the owner it
> was in working condition.)

More information about the cctech mailing list