Text 207, 80 rader
Skriven 2005-01-27 12:06:35 av Roy J. Tellason (1:270/615.0)
    Kommentar till text 205 av James Bradley (1:134/77.0)
Ärende: Monitors nee-But it's ec
================================
James Bradley wrote in a message to Roy J. Tellason:

 RJT> I guess I'm going to get to find out about one of mine,  that 
 RJT> died while I was using it the other night -- a Princeton 
 RJT> Graphics...

 JB> Designed obsolescence tends to keep one from fixin' the darned
 JB> things!

I hate that...

 RJT> I got as far as pulling the back off.  Found a fuse,  which is still
 RJT> good. 
 JB>  <...>

 JB> The component downstream tends to protect the fuse. (Or so the
 JB> tagline goes.) You'll find it's the fifty dollar part.

Hopefully I'll find it,  and then hopefully I'll find a replacement in my stuff
on hand...

I'm thinking that it's probably some power-handling component that's gone bad,
and perhaps some electrolytics as well.  Gotta get an ESR tester together one
of these days.

 JB> I bought a NTSC generator at auction, but have yet to plug an AC
 JB> cable into it. Of course it doesn't do much for a 'puter monitor
 JB> with its composite output.

 RJT> What's it supposed to put out?  I know of one guy who was in the tv
 RJT> repair  business who bought himself a rather expensive generator to 
 RJT> work on monitors with.  I don't recall much about it,  that 
 RJT> was quite some time ago.

 JB> ...I'm sure this is only NTSC, but maybe PAL too, but I doubt it. I
 JB> can only see the South side, as it's in a rack that resides
 JB> bass-ackwards until I can get off my carcass to flip it around.
 JB> It's a Heathkit if memory serves. Nothing special, but it has quite
 JB> a selection of knobs on the front.

Fun stuff,  then.

 JB> BNC connector on the back, with a Blanking, and Trace Rev. 
 JB> switches.

Hm.  Let me know what it turns out to be,  just out of curiosity.

 JB> Good thinking with the Linux box, no doubt! You'd want a VESA
 JB> capable card for its versatility, no?

 RJT> Beats me.  Different cards have different capabilities,  and it's 
 RJT> been a while since I dug into that,  around the time I was trying 
 RJT> to get X working on one box here,  a few years back.  They've 
 RJT> gotten much better at the automated side of setup since then,  
 RJT> and the setup I'm using now I didn't have to fiddle with much.

 JB> I had to do quite a bit of guessing about the H-V-retrace myself.
 JB> Heck, I doubt the info is still on the web for some of the old
 JB> pieces I have blowing through the place.

I remember hitting some web sites with "monitor databases" and there was one
heck of a lot of older stuff out there on one or two of them.  I'm not sure if
I still have those bookmarks or not,  they seem to have gotten misplaced in one
or another upgrades.

 JB> As you can imagine, stressing the retraces are not a consideration
 JB> for these old piles. The shop could use some excitement/light
 JB> shows. <G>

 RJT> Heh.

 JB> There's nothing like the smell of ozone in the morning. Smells
 JB> like... Teen Spirit! <-;

I wonder how difficult it would be to take an old 386 or something and stick an
extra (!) video card in it,  use it for a generator?  Linux would support this,
 no doubt.  I know it will support more than one sound card... 

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