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- Newsgroups: comp.sys.ibm.pc.hardware
- Path: sparky!uunet!elroy.jpl.nasa.gov!sdd.hp.com!saimiri.primate.wisc.edu!zazen!psl.wisc.edu!psl.wisc.edu!FRIGO
- From: frigo@psl.wisc.edu (Sean P. Frigo UW-Madison SRC (608)877-2332,-2001(FAX))
- Subject: Re: NEC 5FG convergence
- Message-ID: <1993Jan23.164758.3387@pslu1.psl.wisc.edu>
- Sender: news@pslu1.psl.wisc.edu (USENET News System)
- Reply-To: frigo@psl.wisc.edu
- Organization: University of Wisconsin - Physical Science Lab
- References: <1993Jan21.232244.10395@gandalf.ca>,<1993Jan22.175607.2802@news.mentorg.com>
- Date: Sat, 23 Jan 93 16:47:58 GMT
- Lines: 51
-
- 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.
-
-
- --------------------------------------------------------------------------------
-
- 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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