Can other game A interfere with Game B's monitor?

[MYX]

I just installed a new 25 in monitor (Billabs CGA 25in) in a Leathal Inforcers cab. It sits next to a 25 - 27 in monitor in a multicade machine (No idea what the monitor is). When the LE is sitting in the middle of the room (where I was repairing it) the red was bright and sharp. When we pushed it against the wall next to the Multicade machine the red went nuts. There is a full screen image of a gun on a red background. When it is away from the wall the upper right hand corner is green () But everything else is fine. When we push it back to the wall only the lower1/3 of the screen is red and the red is only in the center of the screen. Basically looks like a half red circle at the bottom. This is a reflected image to this means that the half circle actually sits towards the rear of the cabinet.

[MYX]

I will add that aiming gets worse when it is against the wall. I did not know if it was the magnetics of monitor A or perhaps there is something in the wall. I will be going back over there tomorrow to work with it a little more.

[SirPeale]

Earth magnetics.  It just needs degaussing with a manual degausser.

[grantspain]

spot on,had exactly the same prob years back when people moved the machine to clean or service-sometimes you have to move the machine as a magnetic field may be too strong

[Kevin Mullins]

Yup... a game of musical magnetics indeed.

Put the LE game where you want it:
See if the auto degauss is working after it has been off and had time to cool down.
Otherwise... you will defineately have to manually degauss it.

Does the multicade next to it have any kind of large sub woofer or anything like that in it?
(since the LE monitor sits lower in the cab)
 

[MYX]

No, no subwoofer. If this is a brand new monitor, shouln't it have a degausing coil in it?

If I need to manually degause it, how do I go about it.

Perhaps a stupid question, but if a transformer is a set of coils of wire with electricity running through it. Wouldn't that also make it a magnet? There is a big honkin transformer about 3 ft. up the inside of the multicade cab. Looks to be connected to the monitor. (Isolation???)

Off the topic, but...
The monitor that was in there had an isolation transformer connected to it. The new one would not work off of that source of power. I bypassed the transformer and it came up beautifully. Is this ok?