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Monitor distortion caused by speakers?
postalp123:
Just a suggestion, but most CRT tubes don't like being tilted, see if maybe leveling the monitor might help.
Shoegazer:
Okay, folks - time for an update on this.
Several of you have had some great suggestions, all of which I tried:
1) I removed the speakers completely and did a degauss with them being nowhere near the monitor for several hours. No dice - I get the same problem.
2) I turned the flourescent light off and left it off for several days. I mounted it a bit further to the back of the cabinet than I believe most folks do. Still same problem.
3) I tried plugging into a different computer, thinking it might be the video card or drivers. Same problem.
A few clarifications - I bought all the bucking magnets in the general size I was looking for (3-4 sets) and in all cases, they are almost exactly the same size as the Sony Xplod magnets, i.e. within a millimeter or two. So, they fit like/like poles without clamps or anything - they just stick on there.
About the only thing I haven't tried is leaving the speakers out of the cabinet for several days (I've had them out for several hours, but that's about it).
I'm starting to wonder if this was maybe a bad monitor issue to begin with? Again, I'm not having discoloration issues or rainbow patterns - rather, a "bowing" effect where the screen appears to sag just a little in the top-center, along with a 4-5 inch wide fuzzy resolution down the left and right sides. For example, the WinXP clock numbers at the bottom-right are barely readable. Does that sound to any of you like a magnet would be the cause? As far as I know, the monitor doesn't go higher than 800x600, but it is definitely slightly clearer towards the center, so I doubt it's purely a resolution thing.
Anyway, thanks again to all of you for your help and suggestions.
Darren
http://nonmame.retrogames.com
grantspain:
its best to post a pic of the problem,the only way your tube could be bad is if the shadow mask is damaged and that is unlikely unless the tube had some sort of impact-more than likely your fault is the ptc component which is basically the switch for the degauss coil
Wade:
--- Quote from: grantspain on September 24, 2006, 03:51:51 pm ---its best to post a pic of the problem,the only way your tube could be bad is if the shadow mask is damaged and that is unlikely unless the tube had some sort of impact-more than likely your fault is the ptc component which is basically the switch for the degauss coil
--- End quote ---
I think that what he is seeing is normal for a monitor of this type. He is probably expecting it to look "too good".
The dip in the top could probably be adjusted out with the controls? You could also try tweaking the focus knob on the flyback carefully, you might be able to improve the sharpness on the sides a bit.
Wade
Shoegazer:
Wade:
What you say makes complete sense, and in fact, I thought for sure the monitor settings would fix at least the "bowing" in the top center. However, the WG D9400's internal controls do not allow you to adjust that particular aspect (though it provides settings for just about everything else!) So I'm struck out there.
As far as the focus knob on the flyback, do you know where generally that would be located on a digital monitor of this type? I realize this sounds newbish but I don't really know where that is. I had a brief discussion with a WG engineer a while ago who did not mention this as being a solution, but I guess it's worth a shot, right?
Thanks,
Darren
http://nonmame.retrogames.com