No signal i have an acer al1715ebm monitor that was given to me because it doen't work. the problem is when i power it up it displays the acer logo then it acts as though it wasn't plugged in to my computer. it displays no signal present. im thinking that the video board is at fault.has anyone had this problem before? please help. p.s. if it is the video board is there any place the sells them? also is there a service manual out there for this monitor?

tgrass462 Nov 20, 2007

Suddenly my Acer X171 seemed to stop working. All we got after Windows login was - No Input Signal' message. When I connected it to an older CRT monitor it works. If I change the resolution on a given user - it seems to work on the ACER - but when I switch users - it goes 'dead'.

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186 Answers

Along with using another monitor to change resolutions, try changing Refresh Rate (in advance button), then hooking the LCD back up. LCD's typically like 60Hz Refresh Rate best, but try several.

Posted on Apr 30, 2008

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The power light is flashing green can indicate start/restart of the power supply due to shorts circuits or failing power supply due to bad caps, look for bad caps with bulging top first, see example of failed monitors due to bad caps: http://s807.photobucket.com/home/budm/allalbums
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