🚀 go-pugleaf

I was able to improve the colors on my Multisync by taking the cover off
and adjusting the output levels of the individual RGB guns, also by adjusting
the master focus and brightness knobs.  These controls are well hidden and
not described in the documentation.  (A technician showed me.)  I had to
build my own tool for adjusting the RGB output levels: you need something
with a square-tipped end, as I recall.  The master focus and brightness
controls are found by removing a thin metal plate on the rear of the monitor
(this is after you remove the cover, of course).

NEC doesn't tell you about these controls because it is VERY DANGEROUS to
be playing around with the inside of the monitor while it's on, and it
has to be on for you to see the results of your adjustments.  I don't know
why NEC didn't make these controls more accessbile.

I can't offer any more help than this as it was over a year ago that I made
these adjustments, and by now I've forgotten the exact procedure.  The
quality of my image did improve considerably, but please remember to be
careful if you decide to go exploring; you might damage the monitor, and
you might even hurt yourself.