7 Aug
2002
7 Aug
'02
11:30 p.m.
On Thu, 8 Aug 2002, Tony Duell wrote:
No, I'm not. Good point. I think I'll work the key or clean it as Fred
suggests and see where that leads.
That's probably true. I was just in a very ornery mood when I wrote that
after unsuccessfully trying to get a TRS-80 Model III, a Commodore 64, and
an Atari 800 working without success.
Nope, still no
video. The video is hosed. Along with the rest of the
units I've tried.
Are you sure it's not the BREAK key? I have had bad keyboard contacts on
M3 keyboards... Also, it is possible to set the external controls so
that the video is
invisible (absolutely no video signal at all). After holding down break
and pressing reset, fiddle with the video controls.
I have the brightness set very high so I can see any text that may pop up
on the screen, but I still think the horizontal hold needs adjustment
before I'll see anything legible.
On the other
hand, I've rarely met an Apple ][ that didn't boot.
Coincidence? You be the judge.
Odd.... I've never had a TRS-80 that's failed to boot (other than needing
cleaning of external connectors). I've had plenty of Apple ][ problems.
Perhaps it's just that I know the TRS-80 better, I have all the service
manuals to hand, so if i have even minor problems I know what to look for
and how to prevent said problems becoming major ones. Well, I have the M3 service manual alongside me, but
since the fault you
describe could be caused by hundreds of things, you've not given me much
to go on. Do you have a multimeter? A logic probe? A 'scope?
Yes, no, yes, but I'll try the simple suggestions first before we have to
go that route.
Thanks!
Sellam Ismail Vintage Computer Festival
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