Question about iiyama Vision Master Pro 510 22" CRT Monitor

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Compressed Screen Hi, I have a CRT monitor, just recentley it has been playing up. It would suddenly produce a bright flash down the centre of the screen, then revert back to normal. It has been doing this on and off. Now when it is turned on, there is just a vertical line down the centre of the screen, less than 1 cm wide, it would appeat that all the picture is compressed into there. Any advice on what components could be causing this would be greatly appreciated. Thanks Colin

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Re: Compressed Screen

Hi, I have the same problem with the same iiyama master pro 510 monito.
Did you resolve your problem? Could you give me any advice?

Posted on Mar 10, 2010

Re: Compressed Screen

If you get a video camera & wave it from left to right while pointing it at the screen you'll just see the image in the flicker

Posted on Jun 08, 2007

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If you know the graphics card you are using is working ok, have checked the VGA cable connection and socket at the monitor and computer and have tested the monitor on another computer, that would rule out any problems as far as connected devices are concerned.

The problem you describe, and it is unusual that it has happened so quickly, points to a failure of the monitor internal board. You may be able to get this repaired at a reasonable cost by seeking the opinion of a TV repairman, who might be able to fix it.

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3) Make sure the graphics card in your PC is functional. You can easily test this by connecting a known working monitor to your computer.

If these steps do not resolve the issue, and your graphics card is in good working order, you indeed have a dead monitor on your hands. It may be cheaper to buy a new monitor, than to have that one serviced.

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The setting is programmed into the memory of the monitor. It has been set that way, sort of like a memory button for your car's driver seat. The car remembers your favorite seat position, and the monitor is remembering your favorite brightness settings.

It's been a while since I played with any settings on a CRT monitor, but I'm sure if you give it a few minutes, you will find in the menu how to set up the memory recall feature on your monitor.

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1 Answer

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problem in vertical section.

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Contrast and brightness controls usually come from one chip. You can try looking up the specs of the chip online and then determine which pin of the chip conrols brightness. Usually faulty Electrolytic capacitors act like the simptoms you described. Find the Electrolytic capacitor connect in the brightness circuit and you will most likly fix your problem. The chip that contols the brightness might also be faulty. Good luck.

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Hi, If you are comfortable working with tools, down to component level and know how to work around EHV areas, then it is possible to increase the brightness of any monitor including the Compaq S510. Make sure that the unit is unplug, Open the back cover and locate the FBT. You have to run/power on/attach a running PC to the unit with the cover off. Extreme care must be exercised. If you are not sure, you're better off asking a qualified service professional to do the adjustment. There two plastic slotted adjustables, focus & screen. Adjusting the screen changes the screen voltage going to the CRT. This will make the display go very dark or overly too bright. Adjust to your preference (not necessarily technically correct) The focus may also be adjusted this way. You have to run the unit with the back cover open for a couple of minutes to stabilize the voltages and the heater/CRT/ Adjust after a couple of minutes if necessary. In other monitors, there is a trimpot (small variable resistor) the adjusts the sub-bright. Further improvement maybe achieved by adding a 100uF/250V capacitor across the supply of the 70+VDC of the 3 gun transistors. If you are sure how to go about this, it is best to consult or seek the services of a qualified TV technician who can either show where and how or do the job himself. Hope this be of some help to you. Pls post again how things turn up. Good luck and kind regards.

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