20 Most Recent Acer AL1912B 19" LCD Monitor Questions & Answers

I contacted ACER Tech services with this same issue, and they told me that it would need to be repaired. I have found that if you turn off the monitor, depress the far left button and power back on, the OSD doesn't display until you release the button. Not ideal but workable, Especially if your Monitor is out of warrantee like mine.

Try cleaning the heat sink by vacuuming out all the dirt then do battery. I have an acer it worked for me. Mike

hi,you will have to increase the RAM size to whatever u can afford,, thats the only issue as of now.. let me know

yea your moniters fryed.

Hello

This absolutely sounds like the powersupply on the lcd screen is faulty, very common its the electrolyte capacitors that cost around 1 dollar each, and you can replace these yourself, with same value and voltage capacitors.

Another possible cause is the capacitors on the mainboard of the display, but it sounds like the mainboard is OK since you get it to start up sometimes, it seems like its not geting proper power from the powersupply.


Here is a picture of two GOOD capacitors
http://www.capacitorlab.com/capacitor-types-electrolytic/radial-capacitor-polarity.jpg

On a bad cap the surface, top, will not be flat, it might bulge even just a little bit and its difficult to notice.

You will probably get best and lasting results by replacing all the bigger capacitors but not the huge one.

To just fix the problem, you need to replace the faulty caps.

That should be it.

How to take apart an lcd display?

Unscrew all screws in the display, check under all labels and soft objects, remove the stand and check for additional screws.

Once you have confirmed that all screws are out, the casing is held in place with plastic clips that you can release with either your fingernails or a plastic stick or a flat screw driver on the edges openings of the casing, on the sides of the display. you need to go around the whole display until it comes apart, after that its pretty simple.

let me know if you have any questions.

I would in spect the caps in the power supply and on the logic board, look for leaking/bulging caps.
See example of failed ACER due to bad caps:
http://s807.photobucket.com/home/budm/allalbums
http://en.wikipedia.org/wiki/Capacitor_plague
http://www.badcaps.net

i suggest checking the manual for adjusting the refresh rate.

If it is still in warranty call the manufacturer.
if not give more info [email protected]. May be somthing simple like a cable
shutdown computer unplug then disconnect the video cable on the computer from the monitor, plug monitor back in and turn it on, there should be a display that says no video source within a few seconds, if unit is working properly. shutdown and connect video again and then reboot computer. sometimes it just takes a compleat power disconect to reset things,

Acer offers access to spare parts for purchase for products still being supported through the Acer Network. Please contact spare part sales department at 1-800-816-2237 for more information

The problem ca be bad back light inverter circuits, bad power supply because of bad caps, bad lamps. More likely to be bad caps, see example of failed monitors because of bad caps: http://s807.photobucket.com/home/budm/allalbums

Are you connected to HDMI inputs or VGA.

Hello there:
what you will need to do is boot the machine into bios setup screen and look under the section where you see the video graphics section and click on it now look to see if it says agp or pci it should be set to your type of a video card either pci or agp if it is set to pci and you have a agp type card than switch it to agp or you can do vice versa and see which one works the best for your system ok?
Tthan simply save settings and reboot.
this should take care of the problem.
best regards michael

First, check all electrolytic capacitors and replace those which are blown or rounded. Next, if when it shuts down the green LED also turns off, then
on the controller PCB there's tiny transistor-like chip U406. Remove it from the board and try to turn the monitor on. That's reset circuit, you could live without it.

I recently had the same problem occur on my LCD Panel and this is the response I received from ACER.

Thank you for contacting Acer America. I apologize for the inconvenience that you have experienced. If the green power on LED blinks rapidly, it means that the monitor is not getting any signal from the computer. It is possible that the monitor may have faulty internal component, I suggest that you send your monitor to a local repair shop to have it tested properly.

Respectfully,
Acer America
Online Technical Support

sounds like the drivers might need to be updated for the monitor and the graphics card. Most monitors install with windows drivers, so it could just be the graphics card that needs updating. What is the make and model of your graphics card

This reply has only historical significance since both are many months old.
Without making a few measurements no exact diagnosis is possible but based on your descriptions, the power supply has to have failed. Kris' problem happened more gradually so whichever part that was marginal allowed a few starts before failing completely Yabbit's failure was more immediate and this one would have been easier to find in a repair.
Switched mode power supplies can be as reliable (and are more efficient) as linear supplies that are much simpler.  But poor component quality can damn a supply to early failure much more certainly than in the linear supply. It could be years before the industry realizes that it can't cheat on quality and still maintain a positive reputation.

Try looking at the LCD screen at a sharp angle to see if ghost-like video can be seen during the 'off' time of the flicker.  If video is still present even though not that visible, then either the backlight or its power supply are failing. The color problem could also be caused by a backlight lamp that is not ionizing completely.

Your best bet is to have a PC Shop install the memory for you, to do it yourself is not recommended, unless you understand what your doing and have worked on PC's in the past.

If its a new PC, it might void the warranty, you must know what ESD is, the PC distributors follow an extensive ISO program to ensure that all work done on PC's by the production employees is ESD protected, they are actually grounded so they will not pass on electrical discharges to your PC equipment.

You will need to have the following information to order and upgrade your RAM memory, First...find the Model Number on the PC, write it down, in fact...write all the numbers you can find on the PC, including the Serial Number and before taking your PC to a PC shop, I would suggest you contact the technical support group at HP Compaq and ask them to provide you the qualified memory list for your PC, it does matter what you put inside the box, if you don't and you have a warranty, it will void your warranty by putting the wrong memory in the unit.

Order the memory from HP and then take the PC to a good Computer Shop, have them upgrade it for you. Its not going to be expensive to have them install the memory for you...Please don't take the easy way out and go to FRYS Electronics and buy wrong or unverified memory for your PC, it could burn up your entire system board.

Good luck...

Systems Engineer
Royse City, Texas