Build Your Own Arcade Controls Forum
Main => Monitor/Video Forum => Topic started by: SteveJ34 on September 28, 2004, 11:38:56 pm
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I've acquired quite a number of 14-15" monitors over the last couple of years, namely from repair/replace/upgrade of PCs for classrooms at my children's childcare facility along with friends/family/family friends.
I decided to test a number of these this evening to try and clear out what is not worth keeping.
I have a couple that are exhibiting what I call an "hourglass" display, that is, the sides are slightly curved inward like:
) (
Understanding that I have more than what I would need for any immediate projects, should these just be pitched or is there some internal adjustment that might get these back to:
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I look forward to any replies.
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That's called pincushion. Check the monitor for a pot (dial) on the back of the monitor for this adjustment. Some old monitors had a hole in the back that you need to use a small screwdriver to access.
Also, here's a link to a downloadable program that is quite useful in calibrating a monitor.
Here's the link to get the program for free from Nokia: http://www.construnet.hu/nokia/Monitors/TEST/monitor_test.html (http://www.construnet.hu/nokia/Monitors/TEST/monitor_test.html)
The program leads you through the following tests:
Geometric Tools: size, distortion (pincushion or barrel), tilt, trapezoid and orthogonality.
- Brightness / Contrast
- Convergence
- Focus
- Resolution
- Readability
- Moire
- Colors
- Screen regulation
Scott
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That's called pincushion. Check the monitor for a pot (dial) on the back of the monitor for this adjustment. Some old monitors had a hole in the back that you need to use a small screwdriver to access.
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The "pincushion" monitors in question are Apple Multisync 15AVs which I'm using an adaptor to get to a standard DB15 VGA connector.
There were not adjustments beyond left/right,up/down externally. I popped the case and went looking for other adjustment mechanisms of which there were several but found none that seemed to affect the pincushion problem.
I guess its possible there is not this type of adjustment available for this old monitor or perhaps this effect is being caused by the adaptor some way?
I don't recall seeing these issues when I shelved these units many moons ago (or I likely wouldn't have kept them at that time) but I have slept since then.
Any suggestions?
Steve
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do like I did,, when you TEST and it don't come out right, GARBAGE, ( I wasted to much tim eon it before) if you need a 15" monitor, goto the surplus or cash converter store they have it for $5.00.