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Article #81

Re: Monitor distortion

#81
From: Mike Tomlinson
Date: Thu, 03 Jan 2008 06:22
39 lines
2644 bytes
In article <mkdnn3hnk5qri353op5i5u4e2jra2flfnj@4ax.com>, Terry Pinnell
<terrypin@dial.pipex.com> writes

>I've just noticed that circular objects become squashed inwards from
>the right, the closer they are to the right hand edge of my screen.
>Doesn't happen with top, left or bottom edges to any significant
>extent - just the right. Circle looks like a lemon.

Is this a circle in the centre of the screen or a circle in the top
right hand corner?

If in the centre, that's unusual.  Geometry issues caused by menu
controls will have a mirror effect - i.e. both top-and-bottom OR right-
and-left sides of the screen will be affected by any adjustment.

>This is an HP p930 19" CRT monitor. Although a bit apprehensive about
>fiddling with its menu geometry options, I did play blindly with some
>of them, but so far in vain.

If you can't get a good circle with use of the keystone, parallax  or
pincushion controls (see the manual to find out which on-screen menu
icons those correspond to), it's probable that 1) the geometry circuitry
has failed (how old is the monitor?) or less likely, 2) a correction
magnet on the back of the tube has fallen off.  Has the monitor been
banged, dropped or moved recently?

>Can anyone help me isolate and fix the problem please?

Toss it and get a nice new TFT?

The p930 came with a 3 year warranty.  If it's still in warranty, stick
a claim in.  Tell the phone droid the monitor is dead - they may give
you the run around if they perceive it to be a minor picture alignment
issue.

-- 
(\__/)   Bunny says NO to Windows Vista!
(='.'=)  http://www.cs.auckland.ac.nz/~pgut001/pubs/vista_cost.html
(")_(")  
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Message-ID: <1BQuULAU8HfHFwok@jasper.org.uk>
Date: Thu, 3 Jan 2008 06:22:12 +0000
From: Mike Tomlinson <mike@jasper.org.uk>
Newsgroups: uk.comp.homebuilt,alt.comp.hardware,24hoursupport.helpdesk
Subject: Re: Monitor distortion
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