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#1
01-31-2005, 01:57 PM
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Computer monitor sharpness help
I am not sure if this is in the right place, but I figured some of you TV guys could help. I picked up a Gateway 2000 Vivitron 17" monitor a few weeks ago. I like the Gateways because they are cheap and pretty reliable. Anyway, this one has a blur problem. I can use it well enough to play games, but the words and fonts are off. When I look at something like the time or words on the screen, I see the red is off from the actual word? Does this make sense? It is slightly offset by about a pixel above the actual line it should be, so just enough to be a problem.
Is there a way to get the colors back in line? Or should I go and find another monitor?
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_______________________________ All there is to life is beer and music.... Well, family too, but they are where the beer and music is. Work? That's just to get me to the weekend.... where the beer, music and family are. Like I said, those are the important things. 
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#2
01-31-2005, 02:18 PM
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You need to take off the back cover - prefereably not while plugged in!! (See Andyman's off-topic post today for reasons why!!). Anyhoo you need to look an all the panels after the top is off and there should be a focus adjustment (I think it may be on the flyback transformer - but I can't remember correctly).
Dave
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"Resentment is like taking poison yourself and waiting for the other guy to die." -Carrie Fisher
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#3
01-31-2005, 03:06 PM
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red being off is more likely to be misconvergence.
many such monitors have adjustments in the menu. vivitron=trinitron.its a sony
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i collect and restore vintage radio's,tv's,and ham gear. email for more info
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#4
01-31-2005, 03:15 PM
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I'll open her up this afternoon. There isn't any adjustment for convergence on the front. Wish me luck...... uuum, if I don't have it turned on while adjusting it how do I know it is adjusted? This is coming from a guy who can at the most hook up a DVD player.
__________________
_______________________________ All there is to life is beer and music.... Well, family too, but they are where the beer and music is. Work? That's just to get me to the weekend.... where the beer, music and family are. Like I said, those are the important things.
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#5
01-31-2005, 03:56 PM
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You will have to adjust this using the plastic convergence rings around the neck of the CRT. Mark their position before you start so you can return everything to where it was if you make it worse. It will take only a very small adjustment to fix the problem. Don't move the rings closest to the deflection yoke, these are for purity, not convergence.
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#7
01-31-2005, 04:42 PM
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BE VERY CAREFUL!!!
There is enough current inside a monitor (either on or after it has just been shut off) to kill you if you're not careful! With the cover off, you'll notice a large wire going to the top portion of the tube, be very careful around this wire, especially if the monitor is on! With the monitor off, check the way the monitor sits, you may have to brace the rear of the tube as the case would normally do that. Best to do this before you turn it on to minimize the arching and sparking!  Working with the convergence rings can be pretty tough as the rings don't need to be moved much to make the slightest adjustment Move only one at a time and return it to it's original spot until you find the ring that adjusts the red. I can't stress it enough to be very careful... there is more power in a monitor than just getting bit from the wall outlet! As my electronics teacher told me, "Electronics is a wonderful thing, but if you find yourself across the room and you don't know how you got there, you know you did something wrong!". On the other hand don't let me scare you away from attempting this repair yourself, just respect the monitor and it will respect you! Scott
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#8
01-31-2005, 04:52 PM
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DEGAUSS/RESET...
If it's a Trinitron and only has one gun, why are you setting the convergence like that? Go into the OS and adjust your Display settings, or consult someone to find out. If that doesn't work go to the thrift and get credit/another one. Live to moderate another day
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#9
01-31-2005, 05:12 PM
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Well, the winning suggestion goes to mg196. I pulled it out, and took the cover off and then hooked it back up. Perfect picture. So the culprit is the cable and/or the fact that the back of the monitor is tightly against one of my EPI 100's that I am using to lift the left BA speak high enough to listen to. I had never used this monitor anywhere else, as I got it and then hooked it right up in this obviosly cruddy set-up. It is good to go now that my wife is making me clean my room
I'll be able to set it up properly. Thanks for all the info, I now know what to do next time.
__________________
_______________________________ All there is to life is beer and music.... Well, family too, but they are where the beer and music is. Work? That's just to get me to the weekend.... where the beer, music and family are. Like I said, those are the important things.
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#12
01-31-2005, 11:40 PM
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Yep, but there aren't very many good vintage speaks that are shielded. Seems like most vintage speaks come from a time before everyone thought they had to have video with thier music.
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_______________________________ All there is to life is beer and music.... Well, family too, but they are where the beer and music is. Work? That's just to get me to the weekend.... where the beer, music and family are. Like I said, those are the important things.
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