monitor problem..pics
- Thread starter NGT
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chris1 said:
the monitor has a couple of buttons on it....maybe one is for that. It has a little black button on the front and another on the service panel in the cab.
that would be great!
The rotary sticks are hooked up to play with regular motions. I still want red ball sticks in it though.
chris1
POCKETBIKE NUT,
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NGT said:
"Check" those buttons..make sure not to touch an unknown button..
............
http://www.twobits.com/degauss.html
ttooddddyy
PNG FTW,
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Its definately fixable, degaussing the CRT should fix it.
Have you moved the cab around recently or placed a magnetic object near like a speaker ?
Have you moved the cab around recently or placed a magnetic object near like a speaker ?
chris1
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No,you didn't do it....it's not your fault
Look at the picks of the auction....
I figured it was the Camera flash..or just the way the picture was taken..
I should of said something,but it's fixable...Cab still well worth it IMO..
That tool(if you get it will pay for itself)..as if another cab of your has a problem you can use it....
I wonder if Rob Roberts has the tool cheaper..
Or a cheat method..like using a big magnet..
Look at the picks of the auction....
I figured it was the Camera flash..or just the way the picture was taken..
I should of said something,but it's fixable...Cab still well worth it IMO..
That tool(if you get it will pay for itself)..as if another cab of your has a problem you can use it....
I wonder if Rob Roberts has the tool cheaper..
Or a cheat method..like using a big magnet..
gamejunkie
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Don't you have to degauss while the cabinet is turned off? If none of those buttons turns out to be a degauss, I've read that some cabinets have a built in auto-degaussing tool. You have to turn the cabinet on and off something like 5 times to initiate it...
This site has a nice picture showing the script that says degauss, maybe yours reads the same...
http://www.solvalou.com/arcade_egret.php
This site has a nice picture showing the script that says degauss, maybe yours reads the same...
http://www.solvalou.com/arcade_egret.php
stuffmonger
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If that where the case, the monitor would have to already have a degausing coild on it, which is probably not there unless it's a new(ish) monitor. I'd say go with the degausing coil... it's your best bet.gamejunkie said:
ttooddddyy
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gamejunkie said:
No, you manually degausse with the cab on (otherwise you would not see the resulting purity, like pissing in the dark)
Yes, the monitor has its own degaussing coil fitted around the CRT, when you switch on from cold a PTC (positive temperature coefficient) device allows an initial surge of current to flow through the coil, demagnetising the crt.
If there has been some extream magnetic force exerted on the shadow mask, like a speaker magnet placed in close proximity or turning the cab around whilst warm, this in built automatic degaussing may be insufficient- thats when you need to manually degauss.
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ttooddddyy said:
the speakers are so close, could they have done this? The speakers are right under the CP. When I put a speaker in there it looks closer to normal as the magnet is pointing right at the monitor.....but if I turn it around, it goes blue...
I said F'it and got one of those coils...I hope it gets here quickly. Any advice on the speaker method?
stuffmonger
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there's an easy way to find out whether the speakers are at fault... after degausing, if it still has the color distortion, try degausing with the speakers removed... you may have unshielded speakers which are creating a magnetic field and playing nasty games with your monitor... depending on the size of speaker, you could get some replacement ones (but make sure they're shielded [otherwise you'll have the same problem]) either that, or you could attempt to re-locate the speakers farther away from the monitor... I think it'd just be easier to buy new ones... especially since they cost around $5 each or less.NGT said:the speakers are so close, could they have done this? The speakers are right under the CP. When I put a speaker in there it looks closer to normal as the magnet is pointing right at the monitor.....but if I turn it around, it goes blue...
I said F'it and got one of those coils...I hope it gets here quickly. Any advice on the speaker method?
ttooddddyy
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NGT said:
The speakers have/may not have done anything, this is an effect not a cause.
Manual degaussing will probably fix it. If not we will continue from there.
The speaker (or any other static magnet) method down to trial and error, move the magnet around the area untill the purity error is rectified, this is inprescise but can work, the trouble is that the external magntic field source has to be fixed in that position, not such a prob if it happens to be inside the cab. The degaussing wand is an ac electromagnetic source so when the shadowmask is straightened out and the coil switched off the problem is permanently fixed.
Edit- some good info on degaussing here
http://slot-tech-ftp.serveftp.com:8080/technical_department/monitors/degaussing coils/degcoils.htm
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cool, thanks! I ordered one of those things from the site listed above, so hopefully it will work. When I put a speaker where they are supposed to be, it goes away, but when I close the cp, it gets in the way and the color goes back a little....
So I guess that's the only way....
So I guess that's the only way....
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chris1 said:
it didn't come with speakers
I just used an old 4 1/2" to test the magnet thing....
I wish they were in there...lol, but I won't complain. I am sure I can get new speakers for somewhat cheap for this thing. They are a strange shape though.
ttooddddyy
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A degaussing coil/wand is an essential peice of equipment for members who mess around with cabs. (maybe several cabs, moving them around frequently)
If you have one cab that is in a static location you will probably never need to use one providing external unshielded speakers etc are not not positioned in close proximity. Even then the inbuilt coil will most likely fix the purity when switched on from cold.
Sorry to flog the topic.
If you have one cab that is in a static location you will probably never need to use one providing external unshielded speakers etc are not not positioned in close proximity. Even then the inbuilt coil will most likely fix the purity when switched on from cold.
Sorry to flog the topic.
SuperGunGuru
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Not to hijack this thread, but I have a Mappy that I've always assumed to have a degauss problem. I have a coil, but even it has never been able to get the picture to look totally correct. You seem to know your monitor stuff so I was wondering if it's possible or likely the tube has become magnatized to the point where I can't save it. It's been like this since I got it at auction.ttooddddyy said: