On my P3 machine (running WinNT 4), I have a Viglen-branded CRT monitor - according to the Device Manager though, it's an ADI E55. About 3 inches over from the left of the screen is a noticeable dark stripe, running from the top of the screen to the bottom. The picture can still be seen underneath the stripe; it's not obscuring anything - but tends to be annoying, especially if you are looking at another part of the screen and see the stripe out of the corner of your eye.
The stripe seems to be most obvious with darker backgrounds - such as the default green color desktop that Windows 95, 98 and NT use. As I'm typing this message now, I can barely see it (white background). Minimizing the browser window, the stripe becomes obvious.
I used the OSD and moved the picture horizontally left and right; and also degaussed the monitor - no change in the stripe position or visibility. I guess that rules out video signals going into the monitor.
That leaves me with two possibilities - screen burn, or a problem with the electron gun control circuits (or shadow mask).
I don't remember leaving anything on the screen for an extended period of time; certainly nothing that could have burnt the screen in that particular spot. Indeed, I switch off the monitor when I leave the PC unattended! Perhaps it's screen burn from when this PC and monitor was used as a work machine, although I don't know why I never noticed it before.
Can you guys suggest any more tests I could do, or a possible fix?
The stripe seems to be most obvious with darker backgrounds - such as the default green color desktop that Windows 95, 98 and NT use. As I'm typing this message now, I can barely see it (white background). Minimizing the browser window, the stripe becomes obvious.
I used the OSD and moved the picture horizontally left and right; and also degaussed the monitor - no change in the stripe position or visibility. I guess that rules out video signals going into the monitor.
That leaves me with two possibilities - screen burn, or a problem with the electron gun control circuits (or shadow mask).
I don't remember leaving anything on the screen for an extended period of time; certainly nothing that could have burnt the screen in that particular spot. Indeed, I switch off the monitor when I leave the PC unattended! Perhaps it's screen burn from when this PC and monitor was used as a work machine, although I don't know why I never noticed it before.
Can you guys suggest any more tests I could do, or a possible fix?
But today, I’m making an exception here. Why? No idea. Perhaps only because the repair details are still “fresh” in my head… which is ironic, given this is a 16 year old monitor that hardly anyone will care about today. It is new to me, though. 
I picked it up last November from someone on my local Craigslist. It wasn’t very close to where I live, but was close to a family friend that I had to go visit anyways. So after watching the posting on Craigslist for a few weeks and seeing it getting...
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