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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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Data monitor shadow/echo, adjustable?
Hello,
I recently was given a Eizo Flexscan 9400 20" monitor from a friend. The monitor is a bit old, but the luminence is great, and the colors and contrast is way ok. However, as the brightness increases, there is a obvious "shadow" or "echo", kinda like what you get when you recieve a delayed/mirrored signal to your tv, causing an odd effect. Is there a "standard" procedure to adjust this? As far as I can remember from school, it might be the beam that is a little offset, and that it just needs calibration? If anyone can provide some generic hints, I would appreciate it alot. (Ps! I have an education and proper tools, but it's been a few years since I worked with monitors) Kind regards, Andreas Ravnestad |
#2
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"Andreas Ravnestad" wrote in message news:419ead92$1@proxy.... Hello, I recently was given a Eizo Flexscan 9400 20" monitor from a friend. The monitor is a bit old, but the luminence is great, and the colors and contrast is way ok. However, as the brightness increases, there is a obvious "shadow" or "echo", kinda like what you get when you recieve a delayed/mirrored signal to your tv, causing an odd effect. Blooming is an effect that causes bright areas to go out of focus and is caused by low emission. Not at all sure that's what you described, but thought I'd pass it on to you. If it is low emission, the CRT is wearing out and perhaps can be improved with a gadget (booster/brightener) that increases the CRT filament voltage. |
#3
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"Andreas Ravnestad" wrote in message news:419ead92$1@proxy.... Hello, I recently was given a Eizo Flexscan 9400 20" monitor from a friend. The monitor is a bit old, but the luminence is great, and the colors and contrast is way ok. However, as the brightness increases, there is a obvious "shadow" or "echo", kinda like what you get when you recieve a delayed/mirrored signal to your tv, causing an odd effect. Is there a "standard" procedure to adjust this? As far as I can remember from school, it might be the beam that is a little offset, and that it just needs calibration? If anyone can provide some generic hints, I would appreciate it alot. (Ps! I have an education and proper tools, but it's been a few years since I worked with monitors) Kind regards, Andreas Ravnestad Miss matched impedance on the input cables can do this (if your monitor uses a detachable input cable). I had same problem when I lost the original cable for one monitor and used a home made replacement. Only after I purchased an original replacement did the ghosting problem go away. Wes. |
#4
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"Andreas Ravnestad" wrote in message news:419ead92$1@proxy.... Hello, I recently was given a Eizo Flexscan 9400 20" monitor from a friend. The monitor is a bit old, but the luminence is great, and the colors and contrast is way ok. However, as the brightness increases, there is a obvious "shadow" or "echo", kinda like what you get when you recieve a delayed/mirrored signal to your tv, causing an odd effect. Is there a "standard" procedure to adjust this? As far as I can remember from school, it might be the beam that is a little offset, and that it just needs calibration? If anyone can provide some generic hints, I would appreciate it alot. (Ps! I have an education and proper tools, but it's been a few years since I worked with monitors) Kind regards, Andreas Ravnestad Miss matched impedance on the input cables can do this (if your monitor uses a detachable input cable). I had same problem when I lost the original cable for one monitor and used a home made replacement. Only after I purchased an original replacement did the ghosting problem go away. Wes. |
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