atwell@utah-cs.UUCP (02/08/87)
I just got a monochrome monitor and I really like it. I've noticed that the screen image seems to jitter slightly. Is this normal or is there some adjustment that needs to be made (it's under warantee). Bart
sccowan@watrose.UUCP (02/08/87)
[eat hot death, line-eater] Message commiing thru from a friend: ------------------------------------------- Hummmm... A friend of mine aquired a new 520FM last weekend. Very pretty and the tilt on the SM125 seemed like exactly what I need to keep my cat (furry variety as opposed to my antiquated modem) from sleeping atop it. Nevertheless, I too noticed that the monitor was very jittery. If you do pursue having your's looked into, I wouldn't mind hearing the results so that I can fill my friend in. Oh well... at least I can feel a little better about my nealy obsolet (sob... whimper) OLD ST. Good Luck Peter Mendell ---------------------------------------------------------------------- In real life: S. Crispin Cowan Home phone: 888-6375 Post Awful: 280 Phillip St., Apt. B4-1, Waterloo, N2L 3X1 USENET: watmath!watrose!sccowan or sccowan@watmath "I love the sound of flyback transformers in the morning. It sound like... hacking."
ugachorn@sunybcs.UUCP (02/11/87)
I am not sure if this is your problem or not. But I noticed that sometimes
when I set up my 520ST The monitor would have a jittery picture while other
times it wouldn't. I found out that if the disk drives are close enough
to the monitor without any shielding then they can cause interference with
the picture. I have 2 SF215(?) drives connected to my ST currently.
Lee Achorn -- SUNY at Buffalo Computer Science
UUCP: ..{bbncca,decvax,dual,rocksvax,watmath,sbcs}!sunybcs!ugachorn
CSNET: ugachorn@Buffalo.CSNET BITNET: ugachorn@sunybcs.BITNET
ARPANET: ugachorn%Buffalo@csnet-relay.ARPAlean@sbstaff2.UUCP (02/11/87)
> Hummmm... A friend of mine aquired a new 520FM last weekend. Very > pretty and the tilt on the SM125 seemed like exactly what I need to > keep my cat (furry variety as opposed to my antiquated modem) from > sleeping atop it. Nevertheless, I too noticed that the monitor was > very jittery. ..etc. When I acquired my monochrome system in July 86, I did notice an occasional jittery. Also a white ghost band (1/4 inch) would appear once a while from left to right near the top of the screen. I returned the monitor within a week, and the replacement I got (SM124) hasn't given me any problem since (not even jittery). With regards to skewed display, etc., one can quite easily open up the monitor and make some adjustments. If you look at the deflection yoke, it's held by a single screw located at the neck of the tube. Unscrew it slightly, gently turn the yoke as approppriate, then tighten screw again. Right by the screw are two deflection levers; these shift the image horizontally. To enlarge the image, adjust the white plastic screws located on the bottom circuit board of the monitor. (All these pertain only to the SM124 since that's all I have) Opening the monitor will VOID the warranty. *** BE CAREFUL!! HIGH Voltage in vicinity *** I hereby disclaim myself from any responsibility as a result of anyone reading the above posting. -- CSNET: lean@sbcs.csnet ARPA: lean%suny-sb.csnet@csnet-relay.arpa UUCP: {allegra, hocsd, philabs, ogcvax}!sbcs!lean
ravi@mcnc.UUCP (02/12/87)
In article <373@sbstaff2.UUCP> lean@sbstaff2.UUCP (Lean L. Loh) writes: >> Nevertheless, I too noticed that the monitor was very jittery. ..etc. > When I acquired my monochrome system in July 86, I did notice an >occasional jittery. Also a white ghost band (1/4 inch) would appear once >a while from left to right near the top of the screen. This has been gone over before, but the SM124 is >>very<< sensitive to interference from just about anything.. even an inoccuous digital clock, or radio, etc. kept in the vicinity (not even on the monitor) may cause the picture to get the shakes. If all such sources are identified and eliminated, the problem will probably go away, -ravi
bjorn@alberta.UUCP (02/13/87)
In article <2037@alvin.mcnc.UUCP>, ravi@mcnc.UUCP (Ravi Subrahmanyan) writes: > This has been gone over before, but the SM124 is >>very<< > sensitive to interference from just about anything.. even an > inoccuous digital clock, or radio, etc. kept in the vicinity (not even > on the monitor) may cause the picture to get the shakes. My SM124 is quite impervious to any of the above mentioned interference sources. According to the stickers on the back of the monitor it was manufactured in August 1985. It's beauty is not in the least diminished by placing a radio next to or on top of it. Incidentally it's the only type of monitor that I can star at for hours on end with my contacts in. My guess is that the high contrast and refresh rate are responsible. Bjorn R. Bjornsson alberta!bjorn
KJBSF@slacvm.BITNET.UUCP (02/20/87)
Date: 19 February 87 16:20-PST From: KJBSF@SLACVM To: INFO-ATARI16@SCORE Subject: Re: Jittery Monitor Date: 19 February 1987, 16:17:57 PST From: Kevin J. Burnett x3330 <KJBSF@SLACVM> To: <INFO-ATARI16@SCORE.STANFORD> Subject: Re: Jittery Monitor The only thing I have found that has made my monitor go funny is an electric pencil sharpener, and that's only when the motor in the sharpener is actually turning.