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Re: No signal prob...
Some issue have to make sure
1) check battery charging indicate light on(yellow)
2) check AC adapter and DC jack connection if no bettery charging
3) check power on from battery or AC adapter that situation is same or not
4) take away HD DVD and change memory
5) plug extenal monitor
if no any thing show on the screen, you have to send to repair by the specialist.
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Acer produces a number of LCD computer monitors. Acer's monitors range from 17 inches to 27 inches. Some monitors offer wide-screen viewing, embedded speakers, high-definition visuals, and various display connection ports. Acer computer monitor problems include common issues such as dead pixels, error messages, and blank screens caused by incorrect connections. Some reviewers have also detected image problems with DVD playback on some models.
"Input Not Supported" Error Message Acer computer monitors such as the G24 may issue an "Input Not Supported" error message when users set the display resolution too high. The G24's maximum display resolution is 1920x1200 with a 60Hz refresh rate. Maximum resolutions vary according to the specific monitor model and according to the capabilities of the computer's video card. b> "Input Out of Range" b> Some Acer computer monitors may report an "Input Out of Range" error message due to incorrectly set monitor refresh rates. Much like the display resolution, each monitor also has specific monitor refresh rates with which it is compatible. Blank Screen or "No Signal" Error b> Like other monitors, Acer computer monitors feature color-coded power indicator lights. If the power indicator light shows green, the contrast or brightness levels may be set too low and should be adjusted via the OnScreen Display. If this does not rid the monitor of a black screen, the monitor may be experiencing hardware failure. The "No Signal" or "Check Cable message" may indicate a problem with the monitor's cable connection with the video card. This error may also appear on a blank screen backdrop if the monitor is plugged into the incorrect port on the computer or if the computer is frozen and needs to be rebooted. Faulty power cords or outlets may cause the screen to be black and to show no power indicator color. b> Image Issues b> Some review sites such as CNET have reported problems with streaking and ghosting during DVD playback on some Acer computer monitors such as the AL1931. (A "ghost" is an identical offset image as the primary or desired image.) Unstable or unclear image issues may be caused by incorrectly programmed VGA timings or incorrectly installed monitor drivers. b> Dead Pixels b> Dead pixels and sub-pixels can cause a variety of display enjoyment problems. Acer will only accept returns on LCD computer monitors that have "more than four (4) defective pixels per million pixels." Further, the central area of the monitor may have no more than one defective pixel. Acer does not differentiate in warranty terms between pixels and sub-pixels. Hope this helps.
Some computer brands will automatically turn off the laptop screen when external monitor or Tv is used, the reason for this is that the motherboard does not have to work any harder than required, because a lot more resources are used when two screens are used and the ware and tare on the motherboard will be heavy and life span will be shorter.
If you show a Blue Screen, you have more problems then it not being able to turn off/shut down?? I would back out the battery so as to stop power from getting to it, AFTER you have it unplugged..then push battery back into to engage, plug the AC cord back into the PC. turn it back on and IF you still show a BLUE screen, you will need a tech to check it further...GOOD LUCK...
try pressing the fn key and F5 or look for 2 monitors on one of the F keys its F5 on my acer 5520 that switches display modes also try going into the bios i think its F2 as soon as you turn on the laptop press F2 or look on the screen for the key to enter setup or bios and restore everything to default save settings restart
ok you need to insert the disk, then shutdown the laptop then turn it back on, the first screen that shows up should say the brand name and have some words at the bottom of the screen saying press f12 for setup and so on, as soon as this screen appears press the pause button on the keyboard so the screen freezes, now read the options at the bottom and select which ever button opens the boot menu it will be one of the f something buttons, this will open the boot options menu select boot from cd rom drive and that shud start up the recovery program that will guide you step by step. hope that helps