Not knowing what model number, here is a few link to reset the monitor:
how to reset monitor to factory settings
SOURCE: Monitor dims for one account, not the other
I would first contact the GF administrator and ask them if they've heard of this before. Then I would contact Acer.
SOURCE: green led light flashing on 700p proview flat panel and no picture
I have a similar problem.
Switching the screen off (front panel button) and on again after waiting a few seconds fixes it.
This is a recent problem, so I'm expecting it to get worse and worse until one day!!!!!!
SOURCE: green led light flashing on 700p proview flat panel and no picture
Usually when the power light flashes and the screen remains blank and unlit, your power board is in fact malfunctioning. This is not always the case, as the problem can sometimes reside in the input or inverter boards. I would first recommend that you feel comfortable with opening up your screen and looking at components. It can be a little overwhelming at first. BEFORE PROCEEDING, UNPLUG POWER TO MONITOR. If inclined to check, carefully open the casing around your screen. I have not worked on your particular model, but some are easier to open than others.
Once opened, you need to gain access to the circuit boards. Sometimes they are not protected by metal, other times they are completely encompassed. The flashing power light usually indicates that a capacitor(s) is(are) malfunctioning. To see if this is the issue, locate the power board (usually the one with larger-size components) and look for any capacitors having bubbled or raised tops and/or oozing a brownish liquid. If not on the power board, look elsewhere for the same symptom.
PLEASE BE CAREFUL!!! If you have recently had your monitor plugged in, the larger capacitors can still carry a charge. If you cross the leads of a capacitor while it carries a charge, it will discharge. It won't hurt any other components, but if you cross the leads with something that is in direct contact with yourself, you can get quite a jolt! There is usually a large voltage capacitor (normally just one) on the power board of these screens. I tested one with a multimeter after immediately unplugging it, and it still held a 166V charge! So please, do this with caution.
If a bad capacitor has been found, simply remove the old one and solder a new one in its place!
SOURCE: I have a proview monitor PL926WBI Model 900W
It seems to be that something gets hot inside after a few minutes of operation of the monitor. So I placed a small fan so that air flows thru the monitor and that did it. What gets hot inside , I don't know.
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