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How do I open cover of Acer AL2021 Monitor ?

No Display on My Acer 2021 LCD Monitor, Someone told me I may have to replace capacitors, But i dont have clue to open the monitor cover. Please help. ( there is no screws, I can see only one hole KEY LOCK pic on top.

Please help me

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c76mb

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This is a bit tricky, but not impossible.
1. Remove the two visible screws near the bottom. 2. Pull the plastic covers off the stand: Pull from the inside (nearest where the stand is attached to the monitor. 3. Undo the screws and remove the bracket. 4. Under the bracket is the final screw. 5. Try pulling the front off the back starting at the bottom. It'll require a little force. 6. Now you should be able to get a knife in to pull the rest of the case off. Leaver by pushing the front outwards and back inwards and the clips should come off ok.

Posted on Jan 17, 2011

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When the capacitors start to go out it causes the power supply to not provide the correct voltages. You monitor has the back light power but the 5v power going to the video driver board is not working correctly. Here is a link to a repair guide that will show you how to open the unit, remove the power supply board and what capacitors need to be replaced.

http://www.ccl-la.com/blog/index.php/repairing-the-acer-al2016w-monitor/

I hope this helps, if so please rate my solution.

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Service manuals: http://elektrotanya.com/?q=showresult&megnev=ACER&megnev2=AL1916W&kategoria=monitor&kat2=schematics

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://en.wikipedia.org/wiki/Capacitor_plague
Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.

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(Please be advise that if you don't have the knowledge, the proper skills and the right tools to open the back cover of your monitor and replace its part...don't risk it...
Otherwise, bring your unit to a credible technician and avail of warranty if there is any.....) If you have guts.. then do the following steps..

You said your monitor will blink but no picture display... well, there are possible reasons why this problem occur..

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2. In case you have successfully repaired the power supply section and the led of the monitor stays green.. then the problem will be in the inverter board section....Turn off your monitor... open the back cover...on the inverter board section.. check and replaced burnt or overheating high voltage transformer..if one or more of this overheats, it is enough to affect the supply current from the power supply section and that may cause to blow your capacitor...If the ballast transformer is working fine the last thing to check is the backlight inverter (the light that illuminate causing display in your monitor) Replace any busted lamp.. that should fix the black screen on your monitor. ..

If you find this information very useful..please be kind to rate this solution and vote for this on the help below...thanks..




Much appreciated if you rate this help...thanks...

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