Question about Acer AL1916W 19" LCD Monitor

3 Answers

Wave motion on screen

Not even a year old. screen appears to have a faint wave motion. web pages are not distorted, its like a tall piece of glass with a thin sheet of water. just started doing this.

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  • ernde38 Dec 04, 2008

    Do you mean that there's a vertical section on the screen that flickers and distorts stuff, but when you take a screen shot, it doesn't show up on the screen shot, so it has to do with the monitor? If so, I have the same problem. Sometimes it goes away on it's own. If you restart, does it get progressively worse sometimes?

  • bussee Dec 09, 2008

    Mine is doing the same thing I believe. Its kind of looks like a 60cycle refresh rate on an old CRT monitor, but much worse. I have about 20 of these same screens and can switch the bad one out with an identical working monitor using the same power and VGA cable, and that one displays fine. It makes no difference If I move the bad monitor anywhere in the building, to any other pc or mac and it continues to have the scrolling horizontal lines. Any ideas? Its out of warranty

  • xx22 Feb 18, 2009

    I have an AL1912 that started doing that after the warranty was up. Sometimes it gets worse, like an old tube tv with the vertical hold scrolling upwards. I give it a few smacks on the top left corner, sometimes it helps, other times shut off the monitor and back on after a few seconds.

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Two suggestions

!. Try changing your screen refresh rate. This might help.

2. Try turning off or unpluging any other equipment near the monitor like for example, fans, clocks, radios, etc.

Posted on Feb 23, 2009

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It maybe an old laptop battery pack near it , i just changed to a new one and its perfect now , . it was driving me mental !"

Posted on Feb 09, 2009

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If it just started and you haven't changed anything such as graphics card or new video drivers, I would contact the manufacturer since you probably have at least a year warranty on the monitor. Also check that the cable from the computer to the monitor is secure. One other thing, make sure you have not placed anything that plugs into AC too close to the monitor as it may pick up the 60 cycle hum.

Lou

Posted on Sep 04, 2008

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db94fab.jpg
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You need to re-solder the circuit board that contains the STK convergence modules. They're on the center circuit board attached to an aluminum heat sink that's about 8" long and 6" tall, about dead center in the circuit board. You may be able to recreate the problem (hour glass effect) by gently moving the heat sink (which the modules are connected to). This gives the hour glass effect on the picture and the advanced convergence screen. This is an indication that the modules pins aren't solidly connected (meaning soldered) properly. Remove the circuit board and clean the old solder off & resolder the modules pins to the circuit board reconnected the board and then retest by again pushing on the heat sink. This is a caused by a minimum effort (a.k.a. minimum cost) solder job, probably done in some 3rd world sweat shop. The "factory" job was good enough for 3-4 years but the heat (and these modules do create a lot of heat) and stress created from repeated use eventually takes it's toll, weakens the pin connections and our problem occurs. take the appropriate cautions working around the high voltage of the set & use a non-conduting piece of wood to push the heat sink when doing tests. Best of luck, hope ya fix it.

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