New arcade monitor discoloration

[kalkin]

I have a new Hantarex 28" PoloStar and it's got a quite large yellow-ish discoloration which can be seen on a completely red screen. I thought this was a typical degaussing problem and while I was looking for a TV to strip a degaussing coil from I found out that a regular magnet will fix the problem temporarily (until I unplug/plug the monitor). Now that I built my degaussing coil it doesn't help the discoloration. In fact it will bring it back if I had fixed it with the magnet. This leads me to believe there's either a hardware error or a misaligned setting.

Any ideas? I'm completely new with arcade monitors.

[Ken Layton]

Buy a good quality MANUAL degaussing coil from Bob Roberts or Happ Controls. It'll fix your problem and save you much grief.

[b3atmania]

Doesn't your Polostar have a degauss coil standard? My 25inch model has one, it just needs to be fitted with a switch.

[arcadepcnut]

I got a 25$ manual deguass on ebay that works really good. May want to try that.

[kalkin]

Something I forgot to mention is that this discoloration was present when I got the monitor, so it's quite possible it broke in some way during transport.

I didn't even notice the discoloration until I saw Blinky turning yellow/orange in one area of the screen. Then I got the Nokia monitor test app and saw that the discoloration affects a quite large portion of the red spectra.

@b3atmania
Yup, it's got a coil standard which is activated each time you turn the monitor on. It doesn't help removing the discoloration though. On the contrary it brings the discoloration back if I fixed it with a magnet. At first I thought the built-in coil wasn't strong enough but the same thing happens with my home-built coil.

@Ken Layton
I would have done this but it's too much hassle. I'm living in a 220V country and I suppose these coils are made for 110V. Don't know if a step-up converter would work.

I think my home-built coil is working fine though. It should be since it gives the same result as the built-in one. I'm more concerned with the monitor itself.