[comp.sys.amiga.tech] Adjusting the horizontal oscillator freq. in 1080

bevis@EE.ECN.PURDUE.EDU (Jeff Bevis) (10/29/89)

Hey, does anybody out there know (if it's possible) how to adjust (decrease)
the horizontal scan rate on a 1080 monitor.  I.e., what I want to do is
skrunch the screen horizontally.  The monitor guts are Toshiba.  Help?!?

BTW:  A vertical adjustment is provided.


+--------------------------------+--------------------------------------------+
| Jeff Bevis 		         | "But I don't like spam!"		      |
| bevis@en.ecn.purdue.edu	 | 	     Give me Amiga or nothing at all. |
+--------------------------------+--------------------------------------------+

dougp@voodoo.ucsb.edu (10/29/89)

-Message-Text-Follows-
In article <8910290245.AA01451@en.ecn.purdue.edu>, bevis@EE.ECN.PURDUE.EDU (Jeff Bevis) writes...
>Hey, does anybody out there know (if it's possible) how to adjust (decrease)
>the horizontal scan rate on a 1080 monitor.  I.e., what I want to do is
>skrunch the screen horizontally.  The monitor guts are Toshiba.  Help?!?
> 
>BTW:  A vertical adjustment is provided.
> 
> 
>+--------------------------------+--------------------------------------------+
>| Jeff Bevis 		         | "But I don't like spam!"		      |
>| bevis@en.ecn.purdue.edu	 | 	     Give me Amiga or nothing at all. |
>+--------------------------------+--------------------------------------------+

It is possible to adjust the WIDTH of the screen (not the frequency)
on a 1080 monitor. There is an inductor labled hWidth (I believe, 
I havn't opened my monitor in a few years) with one of those ferite
slugs in it. You MUST use a plastic tool to turn this, metal tools
will get inductivly heated very quickly and very hot, asside from
the fact that the nearness of the metal tool will throw off the 
adjustment. I don't recomend this adjustment as it needs to be done
with the monitor on with youre hand deep in the guts of the monitor
much clocer than you realy want to be to the high voltage section.
I used a rubber glove and it still made me nervous.

If you are foolish enough to try it I take no responsibility. but
then I would take no responsiblity anyway.

Douglas Peale