On 09/09/2014 08:25 AM, John Garza wrote:
Anybody seen a troubleshooting guide for the old Diablo printers?
I have the maintenance manual but there's no troubleshooting guide.

Mine powers up but doesn't print either via rs-232 or in local mode.
It was working fine last time I used it 4 years ago.
Has been sitting on a table under a bedsheet since then.
(I guess it decided to die in it's sleep!)

Please reply to this newsgroup, thanks!
-J

Thanks all for the replies!
I haven't got around to tinkering with it yet. My Sol-20 is on the
bench for a flakey Micropolis drive. The Diablo is up next.

But it is pretty amazing it "died on the shelf"; the thing is built like
a tank. All the responses seem logical though - time dries out
electrolytic caps, and some slight corrosion or dust in a switch could
prevent conduction, etc.

Maybe I need to hermetically seal all my machines.
Maybe a big airtight antistatic bag filled with nitrogen?

I'm starting to feel like the repairmen in those old stories you hear
about the huge ancient computers. As soon as someone replaced a vacuum
tube, another would burn out some place else!

_john