PC Peripherals Crt Issues

Hello!

Recently have noticed some issues with my dad's old Crt.(SyncMaster 793s)

Tried degaussing, but there hasn't been any improvement.

What could be the cause for this? The desktop is actually a solid gray originally.



-Thanks
 
Seems like the picture tube have developed some fault
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Seems like the picture tube have developed some fault
<

Damn, I sure hope not! I think this happened when the monitor was moved while it was on. I shall try checking the VGA cable and check tomorrow.

have you placed any speakers near it.

Yeah, but really tiny ones that can't really effect it. Pluss they are magnetically shielded. I shall shift them and check it the problem persists too.
 
Is there any ups near the monitor, because same like speaker, the ups also affect CRT monitors.

@Spy king, i doubt about the picture tube, because of its age.
 
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