I will assume that you have checked out the power cables and external cables. If this is the case you will usually notice an indicator light from your monitor. Universally it is yellow or orange when it has power, then turns green when it detects input from your computer. If the Led light doesn't turn green even when your laptop is already booted, your culprits would be your iMac's video controller or your monitor's input cables.
SOURCE: ACER AL 1714 SM MONITOR
Hi...there,
Well...your backlight inverter are busted.... need replaced a new one or repaired it.
SOURCE: monitor wont stay on- blue light is on. but screen keeps going blank.
Have you tried the monitor on another computer? If so, and it works, the issue is with your graphics settings on your computer. LCD and plasma based monitors often come with a protection circuit that disables the monitor if the synch or refresh rate are beyond it's capabilities. this is to protect your monitor from damage.
Do not exceed your monitor's max resolution.
Resolution is determined the following way:
Width x Height @ Refresh Rate
For your model:
More detailed information about your monitor can be found HERE. If your monitor is still under warranty, and you find it to be faulty, you may be able to send it to the manufacturer for repairs.
SOURCE: acer lcd monitor ''no signal''
It is screen resolution problem.
when you power up the computer press F8 key thene nter in enable vga mode then go to diaply property and set screnn resolution to 1024*768 thenh apply and ok.
SOURCE: Acer AL1716 Monitor Problems, First it blinks off
Generally, replace chimic capacitors on the retro-lighting printed circuit. Control the connexion of the transformers on the same circuit, perhaps defectives. Good Luck !
Testimonial: "That is what I feared, and since I only gave 5.00 for it at a Flea market, tis muchly smarter to just scrap it..... Thanks...."
SOURCE: Acer X223W monito won;t wake up after sleep.
I have a dual monitor system, both are the x223w. Same problem but only on the second monitor. Backlight shuts off.On/off light stays blue. I have to turn off the monitor and turn it back on. I returned it and Acer could not find any problem so I got it back. No problem for awhile and now a few times over the past couple days. Not good...
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