Accer monitor hii siri need how to remove antitheftmode in acer lcd monitor

Go to settings and switch on from there.

Hi Ali,
Sounds like the familiar leaking capacitor syndrome.
You will need to remove the back from your monitor which can be a challenge in itself.
Have a look at the power supply board which is the board that the mains cable plugs into.
You should find that some of the capacitors have a bulged appearance on the top or a gooey substance has leaked out onto the board.
Capacitors are the small metal cans on the circuit board.
These need to be replaced and if you are reasonably proficient with a soldering iron this should not prove too difficult.
Try eBay or somewhere similar to locate replacements which are not expensive. Make sure you buy capacitors which are described as low esr. If there are more capacitors of the same value on the board then it would be wise to replace them all.
You should be rewarded with a fully working monitor once again.
I have repaired many monitors with this problem and this has always been due to these leaking capacitors.
Wishing you every success Ali.

hi
i think the screen lost the resolution power,better take it to the service centre.

thank u,a rating will be good

Press the OSD (menu) button - it is next to the power button
Click the button to get to the icon that looks like a ' R->] '
click enter or Menu to adjust and use teh to reset
exit

If you are going to DIY and have proper tools and know safety precaution then please read on:
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply (they should be replaced in a set), blown fuses; poor solder joints, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed ACER monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.

Basic LCD monitor troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting

http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague

Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.

Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, blown fuses, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed ACER monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.
http://en.wikipedia.org/wiki/Capacitor_plague
http://www.badcaps.net

u check the cable from ur lcd to pc, plug again if not work ur lcd have problem

An Accer monitor will work on most any computer, even a laptop. (plugged into the rear extension port). Weither XP, Vista, or Win98 doesn't matter.

is this a laptop? do you have an external monitor plugged in? do you have an external monitor to use? if it is a laptop then plug in an external monitor if it is not already plugged in, or if you already have one plugged in then unplug it.

unscrew your lcd check the ribbon connector "circuitboard to screen"