My 1453MD recently started having this issue after taking a break for an hour and switching the input to an unused one, when switching back to RGB again I could notice a slight red tint to the image. Another day it would also pulse back and forth to an even stronger red tint, making me think it could be a cable issue, but it's still too subtle to be that (there would be entire colors missing if it was the cable).
So now on full white I can see a slight red tint when before the 6500K profile on this monitor was pretty neutral, a tad yellowish if compared to cooler consumer sets. I can drop red gain a tad and have it look good again, but it's still clearly a hardware issue. What are the chances this could be a capacitor issue? I have another monitor that had something like this, but it would change quite a bit as the monitor warmed up from usage. On this one it doesn't seem to change yet.
PVM-1453MD (intermittent) red tint
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Xan
- Posts: 868
- Joined: Mon Sep 23, 2013 12:04 pm
Re: PVM-1453MD (intermittent) red tint
I've been thinking for a while this is an issue with my Saturn RGB cable, as it could also be provoked by wiggling the cable in the AV port, but it also now finally started happening when using my RGB modded N64, and it's gotten worse too. Same thing again with an immediately visible slight red tint to the image, then after an hour it suddenly started the flickering strong red tint. Pulling the cable and plugging it back in while everything would at first fix it, but then not even that would help.
I remembered something else, which is that since this is a medical monitor it has a second RGB input. If I use the B input, the image has been completely fine so far. The difference with the second input is it lacks an output, which makes me think that the self-termination on the other output could be at fault. AFAIK not having termination should actually cause a washed out image, which I'm not sure could be applied to this issue, but I think it's still worth considering. I don't have any 75 ohm terminators at hand to test this since I don't have any monitors that need them by design. They are also hard to get at this point, not really surprisingly.
Whatever the actual cause is, it was a) getting suddenly worse if the monitor was running long enough and b) could be fixed by pulling and re-plugging the signal, at least temporarily.
I remembered something else, which is that since this is a medical monitor it has a second RGB input. If I use the B input, the image has been completely fine so far. The difference with the second input is it lacks an output, which makes me think that the self-termination on the other output could be at fault. AFAIK not having termination should actually cause a washed out image, which I'm not sure could be applied to this issue, but I think it's still worth considering. I don't have any 75 ohm terminators at hand to test this since I don't have any monitors that need them by design. They are also hard to get at this point, not really surprisingly.
Whatever the actual cause is, it was a) getting suddenly worse if the monitor was running long enough and b) could be fixed by pulling and re-plugging the signal, at least temporarily.