26 May
2005
26 May
'05
5:56 p.m.
Way ahead of you there - I've dismantled it
sufficiently to at least
check it's not something obvious. Like you say though, connecting the
CGA output to a known-good monitor's probably the next step in order to
see whether it's a display fault or a logic problem. The screen
Exactly. You don't want to spend time looking for a fault in the wrong place!
appearance makes it look more like it's on the
display side of things,
but there's no guarantee at the moment.
(incidentally there are signs that it tries to boot, it gets annoyed and
beeps if the keyboard isn't plugged in etc., so it looks like most of
the digital side of things is happy at the very least.)
There's a bit of circuitry on the output side of the CGA card that can't
be checked by the POST,
From what I remmeber, it's assembled with
Bristol
Spline screws, with the odd tamperproof Torx in the PSU. The former are
not easy to get drivers for, I have a set, but they weren't cheap.
Oh heck, yes. I went through every alan key and torx bit I had trying to
find something that would fit the former. Ended up with a good ol' pair
of long-nosed pliers, and those bristol spline screws are getting
replaced with something a little more conventional on reassembly!