[comp.sys.ibm.pc] NEC Multisync Plus Color Fringing

network@hgcvax.uucp (craig chaiken) (11/21/88)

I have had a NEC Multisync Plus monitor on my AT-386 system for approximately
6 months.  From day one, I noticed that the image suffered from pincushioning,
as well as moderate fuzziness.  Since that time, the image has become
increasingly fuzzy, and the colors are horribly fringed at the corners and
edges of the screen.  In particular, the monitor's blue gun seems to be
firing over two millimeters earlier than the red and green guns, and the red
gun is firing one millimeter higher than the blue and green guns.

My questions are these:
1) Is this problem an irreparable result of age?
2) If not, can I fix it by adjusting some internal potentiometers?
3) Or does it absolutely require a NEC service technician because of the
	need for diagnostic equipment of some kind?

Any advice would be greatly appreciated.

Craig Chaiken
Hartford Graduate Center
Computing Services

ncsmith@ndsuvax.UUCP (Timothy Smith) (11/26/88)

In article <674@hgcvax.uucp> network@hgcvax.uucp (craig chaiken) writes:
>I have had a NEC Multisync Plus monitor on my AT-386 system for approximately
>6 months.  From day one, I noticed that the image suffered from pincushioning,
>as well as moderate fuzziness.  Since that time, the image has become

>My questions are these:
>1) Is this problem an irreparable result of age?

   I can answer question 1 but the rest are beyond me.  We have been using
2 NEC Multisync+ monitors since June 88 and neither have suffered the
problems that you describe.  The one problem that the professor has with
them is that the convergence is not quite perfect, close but not close
enough.  He likes to work in the graphics area so that makes him a little
less than totaly pleased with them.  The system we are using them with are
Packard Bell 386 Supreme boxes and STB VGA Extra/EM video cards.


--
Tim Smith     North Dakota State University,  Fargo, ND  58105
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corbin@pinocchio.Encore.COM (Steve Corbin) (11/29/88)

 In article <674@hgcvax.uucp> network@hgcvax.uucp (craig chaiken) writes:
 >I have had a NEC Multisync Plus monitor on my AT-386 system for approximately
 >6 months.  From day one, I noticed that the image suffered from pincushioning,
 >as well as moderate fuzziness.  Since that time, the image has become
 >increasingly fuzzy, and the colors are horribly fringed at the corners and
 >edges of the screen.  In particular, the monitor's blue gun seems to be
 >firing over two millimeters earlier than the red and green guns, and the red
 >gun is firing one millimeter higher than the blue and green guns.
 >
 >My questions are these:
 >1) Is this problem an irreparable result of age?
 >2) If not, can I fix it by adjusting some internal potentiometers?
 >3) Or does it absolutely require a NEC service technician because of the
 >	need for diagnostic equipment of some kind?
 >
 >Any advice would be greatly appreciated.


I bought a NEC Multisync II last month.  It has the same problems Craig
describes above.  I too would be interesting in how to fix/resolve the
sharpness and color offset problems.

Stephen Corbin	    UUCP:	{bu-cs,decvax,necntc,talcott}!encore!corbin
		    Internet:	corbin@multimax.ARPA