[comp.sys.atari.st] Monitor adjustment question?

wallace@leddev.dec.com (Ray Wallace...or so they say) (05/26/89)

The characters in the last character position on my SM124 (mono) monitor are
starting to be squished (skinny) and are extra bright. Does anyone know what
adjustment (if any) can be made to fix this?

Thanks,

---
Ray Wallace    wallace@leddev.dec.com
		--or-- ...!decwrl!leddev.dec.com!wallace
		--or-- wallace%leddev.dec@decwrl.dec.com
---

DAVID%COUSTEAU@cs.umass.edu (David Forster) (06/01/89)

> The characters in the last character position on my SM124 (mono) monitor are
> starting to be squished (skinny) and are extra bright. Does anyone know what
> adjustment (if any) can be made to fix this?

Oh-oh!  My mono monitor (r.i.p.) had this problem for a few months, until it
finally gave up the ghost.  I wasn't home when it conked, but my wife said it
made an arc-ing sound and smelled burnt.  I took it in for repair and they
replaced a fuse (they were really a PC shop). When I took it back home, it
lasted for about a half hour before the screen image started to squish, wrap,
and then suddenly collapse, never more to return.  When I took it back to them
they refunded the repair money, but declared they wouldn't be able to fix it.
It seems the flyback transformer is bad, and each monitor make uses a different
one.  You'd better invest in a new monitor now, so you can just pull the plug
and swap them the day yours goes.

- David
forster@cs.umass.edu  /  forster@umass.bitnet

jkr@IFI.UIO.NO (06/01/89)

> The characters in the last character position on my SM124 (mono) monitor are
> starting to be squished (skinny) and are extra bright. Does anyone know what
> adjustment (if any) can be made to fix this?

(David Forster had one theory, which might very well be it)
You might try giving your video-chip a little push. Older ST's have really
low-quality sockets, and even some newer ST's have awful Video & Dma chip-
sockets. (There are a LOT of 520`s out there that give up when you connect
a hard-disk.) Before I changed sockets I had all sorts of problems with
extra luminance in column 0, and often other weird effects.

bill@meadow.UUCP (Bill Foster) (06/02/89)

> 
> > The characters in the last character position on my SM124 (mono) monitor are
> > starting to be squished (skinny) and are extra bright. Does anyone know what
> > adjustment (if any) can be made to fix this?
> 
> Oh-oh!  My mono monitor (r.i.p.) had this problem for a few months, until it
> finally gave up the ghost.  I wasn't home when it conked, but my wife said it
> made an arc-ing sound and smelled burnt.

My mono monitor has done this off and on for several years.  It only lasts
about a week and then things are back to normal.  From the way things look
the problem may not be with the montior but rather with the video chip.  Try
resocketing it and pressing on the board around it while power is off
(obviously).
   Many people have written about the problem but I have never responded
because it does no harm and will go away after a while.  It has nothing to do
with the accessible adjustments of the monitor.


                  BFOSTER = GEnie,  WHTB33B = Prodigy
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