New Astro City Monitor Discoloration.

[ahkek89]

Hi guys,


I have just gotten a New Astro City and this is a dream fulfilled! I have some questions regarding the CRT. Hope the kind people here can help me out.
1.) Upon the first power on, I noticed my bottom left corner and top right corner had some discoloration, a pinkish / purple tint. Other areas of the screen were looking normal.
2.) After I moved the cabinet to another area, when I power on, I noticed that the left side of the screen and right side of the screen had discoloration (yellowish and slight pink/purple) - On my phone it looks blue
I tried to manually degauss using the button from the PSU but it did nothing. The center portion of the screen's color is normal.

I checked with the seller and he said the CRT likely is to have been magnetized, so he told me to get a degauss wand and that should clear up. It is a little challenging to find one from where I am located, but I will be giving it a shot. Anyone had encounter this issue before? I thought these CRTs should degauss on their own when we switch if off and on. Attached is a video of how it looks like. Also, how can I check that the degauss circuit / button is working?

My PSU is the 500-4198 (black).

 

[nonosto]

use degauss button on power supply module.

 

[ahkek89]

use degauss button on power supply module.

yea I did. It did nothing though. So I’m not sure what is the issue.

 

[nonosto]

issue appears after moving? Sometime some of deguauss is necessary.

 

[Plymelk]

Degauss circuit relay can fail. I have had this happen before. The simplest approach is to buy standalone degaussing wand. Ali Express is full of the small green ones but the better option is a circular coil type. Look up videos on how to properly manually degauss a CRT before doing it.

 

[ahkek89]

Thanks for the help! I manage to buy a degaussing wand and gotten the colors back to normal! Its the green one but took me a while to figure out how to do it.