Question about Acer AL1917W LCD Monitor

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Acer AL1917W goes black

I have an acer AL1917W LCD monitor, and my problem is the same. When I turned on the monitor for the frist time on the day, it seems to work ok for about 2 or 3 minutes, then it goes black and the power button goes from green to yellow and then green again, and the acer logo appears just the same way as when I turned on the monitor for the first time. And this continues in a cyclic way. Then, the power button goes from green to off, then yellow, then off, and so on, and the acer logo continues appearing and dissapearing the same way.
I have read about some faulty capacitors inside and I think I can remove them and check them with a universal bridge (I have one HP) but my main problem right now is how to remove the back cover. There are not visible screws and the only thing I can see is a hole with a padlock drawed near this hole. I think is through this hole that the cover can be removed.
Any one knows how to remove this cover? Will I need some sort of specific tool to do that? Please, I need your help.
Thanks in advance.
Mexico city.

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  • Anonymous Jan 14, 2009

    I have the same problem with my AL1917A w.



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I have recently opened my AL1917 (not wide) but it should work the same. First remove the stand. This is done by removing the plastic cover over the stand hinge (which appears to be part of the back cover, but is'nt.) Mine was done with simple tumb pressure at the base of the cover which released the four plastic hooks (clips). Under the cover were six screws, three at each side. Remove these and the whole base and stand comes off. Next remove the two screws just above the base on the back cover. Thereafter the trick bit starts.

I used two small flat screwdrivers and started at the bottom corner (where a slight mark would not be noticed) [I first tried the bottom middle but would not work - made a mark in the plastic]. By wedging the first screwdriver between the silver cover and black backing, and using the second in this gap to twist slightly, a click will be heard when the plastic catch (clip) releases. Once the first clip releases, leave one screwdriver in the gap, and slide the other screwdriver along the bottom till you feel there is another catch, where a slight twist of the screwdriver should release the catch. This process continues right around till the front silver cover is entirely free from the back cover, whereafter both plastic portions can be removed. The first catch is the most difficult of the lot. Once this is done, the rest is relatively easy.

The back of the screen has a metal covering, with several screws at the side. (straight forward to remove) Carefull when splitting the screen from the back metal cover (where two electronic boards are affixed) There are four plastic plugs on one side and a flat electronic connector on the other that must be released before the screen is seperated from the back metal cover. (ps I discharged the capacitors before touching anyting)

If you get this far, perhaps you can assist - which capacitors are the usual culprits - those on the screen, those in the power supply etc? (My screen used to go black after a minute or two, but the green light stayed on)


Posted on Dec 10, 2008

  • PoisonedPawn Feb 20, 2009

    Have eventually fixed the problem. Was a 4 amp surface mounted fuse on the inverter circut - not a capacitor.




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Thanks for your reply.
Yes, the monitor is the problem. I have connected it to another computer and it does the same problem. The video card is OK since it works fine with other monitors.
Do you know how to fix this issue?
Thanks in advance.

Posted on Nov 15, 2008

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Are you sure that the monitor is the problem?
Did you check the video card?
Did you check your monitor in another computer?

Posted on Oct 14, 2008

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Okay My problem is with my Acer Al1917W LCD Monitor. I Turn on my computer and everything shows up my desktop shows background and everything else then after 5 or 4 secondes it shows black screen just pure...

If I am correct, it is more likely to be bad caps just like the rest of failed ACER as shown in my albums.

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 and other monitors to get some ideas what to look for:
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:
Capacitors kit: he can make you a set of caps for you.

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Post back what you see inside so we can guide you further.

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