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DemoDisk
 
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Default Blue shadows after repair

Hi, folks; back again...

I got my 19" monitor back Tuesday from the shop after a long-delayed repair.
The image is good now, but now there is a color problem.

Used to be that shades of red onscreen always revealed a small bluish smudge
near the center of the screen, but that didn't spoil it for graphics work.
Now, there is blue "dust" down the left-hand side, the center, and lower
right corner. What happened??

My question is, can anything be done about this? To avoid another 3-week
hassle, is there anything I can do myself to correct the color? Is it the
repairman's responsibility?

One more thing: This Hitachi 751 has a "Degauss" button. Pressing it used to
bounce the image on the screen violently, with the same "bonk" the monitor
made when turning it on. I guessed that was just the degausser degaussing.
Now nothing happens. Opinions??

For reference, I've pasted Jerry Greenberg's answer to my original problem.
(Yeah, it took me that long to get it to the shop.) Sorry for the long
post. As before, I'm grateful for your thoughts.


----- Original Message -----
From: "Jerry G."
Newsgroups: sci.electronics.repair
Sent: Thursday, April 08, 2004 8:59 AM
Subject: Hitachi SuperScan monitor displays odd "ribbon" across top of
screen


Defective capacitors in the vertical amp section in the monitor are

usually
the normal cause of this. It is possible to have some semiconductor or

other
component failures to cause this, but not very often. If you continue to
use the monitor this way, there will be more damage, thus increasing the
cost of the repair as usage goes on. Take the monitor to a service centre
that is authorized to work on computer monitors. This type of repair

should
generally not be too expensive.

After your monitor is properly serviced, it will work normally again.

--

Greetings,

Jerry Greenberg GLG Technologies GLG
=========================================
WebPage http://www.zoom-one.com
Electronics http://www.zoom-one.com/electron.htm
=========================================


"DemoDisk" wrote in message
...
This is my first time posting here, and I hope this is the right place for
this problem.

An area about 2.5 cm at the top of my Win 98 desktop shows extra lines --
white, gray, a few black -- just after starting. Icons in this area look
stretched vertically and at the very top of the screen they look "folded
back" on themselves. When I move the mouse pointer to its upward limit,
before it stops it emerges again stretched and heading downward.

The area spans the screen and used to shrink to about 4mm high after ten
minutes or so. Lately I've noticed that it doesn't reduce as much (ie,
problem getting worse?). If I shut the monitor off with Win98 running and
then turn it on again, they're back.

One odd thing is, the length of each successive line is a bit less than

the
one above it, so the ends of the "band" are angled inward. Also, the Win98
splash screen doesn't show the lines during boot-up. Weird?

I've been thinking maybe a reinforcing wire on the mask broke? Someone
suggested a "broken sweep generator." I hope it's a software problem and

not
the monitor, but please tell me if you know what it is and what to do.
Please help if you can. Thanks.

Oh, and it's a Hitachi SuperScan Elite 751.

JPM