Re: OT - Nec/Mitsubishi Diamond Pro 2060u

by "Paul Wilson" <webgooru(at)gte.net>

 Date:  Thu, 2 Aug 2001 11:45:25 -0400
 To:  "Carol Parent" <cbwd(at)means.net>,
<hwg-graphics(at)mail.hwg.org>
 References:  means
  todo: View Thread, Original
> I apologize for the posting, BUT, am at loss of what to do.  I purchased
the
> above monitor (aperture-grille - 22in) and after setting it up discovered
a
> distinct distortion across the top of the screen.  I called tech support
and
> they said it was defective and to send it back and they would send another
> one.  I did.  Set up the second one last night and SAME THING.  After 1.5
> hours on the phone with tech support (they will be glad to send another
one)
> they wanted me to check a couple of things before going thru all this over
> again.

  I had about 25 years working in industrial type electronics with several
years
as a PC tech.  Monitors were a problem for us.  They usually arrive from
shipping with rounded corners... meaning they got rough treatment, but
interferance sometimes drove us nuts because the monitor would always work
great in the store.

 Monitors are very susceptable to magnetic influence.  It is very common to
get intereferance from PC's, speakers and even lamps that are in close
proximity to a monitor.  Some monitors are more prone to this problem than
others.

 To test for this, get the monitor away from everything.  Place it in on
your chair and move it several feet away from anything in the room inlcuding
the wall.  If the monitor has a display reset mode, use that a couple times
to degauss the screen.

If your problem has gone away, then you know something was bothering the
monitor.  Now you have to turn things on and off until something quits
interfering, that way you find the cause   If the problem has NOT gone away.
Put the monitor in another room and try this again.  If you still have the
problem, it may not be magnetic interferance.

Other things can cause problems too, like an unbalanced load on your power
lines.  This is where the 220v that comes in to your house or business is
split into two 110v  lines. This gives you 110V AC on one side and return on
the other at your wall sockets.... as well as a ground for safety.

Typically half the place is wired with one 110V side, the other half with
the other 110 side.   If you get too many circuits pulling juice on one
side, you effectivly get a brown out condition on that side.  This takes an
electrician to fix.
Hope this helps some.


Paul Wilson
webgooru(at)gte.net

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