🚀 go-pugleaf

In article <1993Jan22.175607.2802@news.mentorg.com>, mikes@mikes.mentorg.com (Mike Stanbro) writes:
>In article <1993Jan21.232244.10395@gandalf.ca>, ralleger@gandalf.ca (Bob Alleger) writes:
>|> I recently purchased an NEC 5FG (actually my second, the first was DOA).
>|> The only problem with this monitor is that the upper left-hand corner of
>|> the screen is not as clear as the other quadrants.  It seems that the
>|> red gun is not in convergence with the green and blue guns.  A simple
>|> Windows-based test program that displays a dot pattern on a black background
>|> shows this right away.  Is it possible for an end user to adjust for this
>|> without the need for expensive test hardware?  If so, how?
>|>     .
>|> 
>
>Don't do it!!!  I use to do convergence adjustments on TVs so I assumed that 
>I would be qualified to do it on a computer monitor as well.  Well ... after
>trying to converg two or three different monitors (including a NEC 4FG), I 
>have come to the embarrassing conclusion that computer monitors are beyond my
>skills.  
>
>Because you are sitting so close to the tube when you look at a monitor, the
>gun alignment is critical.  I believe that monitor manufacturers must 
>invest a lot of money and time in developing equipment to aid in the convergence
>and alignment procedure during the assembly process.  Mere mortals don't
>stand a chance of duplicating their ability.
>
>Furthermore, it is my opinion that local computer repair technicians don't
>have the equipment or practice to do a decent job either.  If I were you, I
>would continue to return the monitor until you get one you are satisfied with.
>If you bought it locally, don't let the place you bought it from attempt to
>mess with it.

Yes, my local representative exclaimed "We've never seen this one before!"
when I brought in my 5FG for warranty repair.  What a fright...

>There has been a lot of discussion in this news group about the poor quality
>of the new NECs in terms of convergence and alignment.  I went through three
>4FGs until I got one that was OK.  It is a real shame that NEC doesn't do a
>better job of QA.  

I am on my 3rd 5FG and it displayed intermittent flyback transformer ringing
the day after receipt and there are unlit pixels.  I haven't gotten any
reply from a 2 page letter to NEC yet.


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Sean P. Frigo					    internet: frigo@src.wisc.edu
UW-Madison SRC and Department of Physics                  bitnet:  frigo@wiscpsl
3731 Schneider Drive                                       voice:   608-877-2332
Stoughton WI 53589-3097                                      fax:   608-877-2001

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