5 Oct
2007
5 Oct
'07
12:33 p.m.
And thusly were the wise words spake by Liam Proven
Fascinating. The snag is, I know very little about electronics below
the level of a broad knowledge of TTL, the rudiments of circuits and
gates and so on. I have a bit of theory, no practice. I could not
diagnose a faulty chip or anything; my troubleshooting consists of
All you need to start with is a logic probe. Then for simple logic
chips like AND, OR, NOT you would place the logic probe on the one
or two inputs o see if they are high or low. Then from that you
would know what the output should be. For chips that were a little
more complex you would use the truth table from the datasheet for
the particular chip to see what the output should be for each
combination of input(s).
Well, aside from 1 old Sun (SPARCstation IPX), the
soon-to-arrive
VAXstation, an Amiga and 2 STs and a QL, all my kit is Macs and PCs.
The PCs range from a 386 to an Athlon XP, Macs from an SE/30 to a Blue
& White G3/400MHz. So I don't run what most people here would consider
"old hardware", I suppose!
I know for the Amiga Commodore provided schematics...
I am, a bit like Chuck, mainly a software person, but
one who's
competent with hardware to a basic level. I know bugger-all about
electronics and while I regret that, I'm not inclined to fix it now. I
just have an aesthetic appreciation for the way things /used/ to be
done.
I am also mainly a software person, but I am slowly teaching myself
electronics because I would like to know how the "other side" works! :)
Cheers,
Bryan