Question about Acer AL1715 17" LCD Monitor

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Monitor turns on but after a while goes dark. Green power light is still on but no image. turn off and back on and image flashes then dark again

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  • Master
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Nyecop, Sorry to hear that your LCD panel has been struck down with the BLACK SCREEN OF DEATH that is running rampant on the planet. YES, it can be repaired(refurbished). The cheapest method is that a lot of owners are doing it themselves if they are skilled in the use of a "fine tipped 40watt soldering pencil or iron"! They get off cheap, buying only $3 - $8 in parts. And some of them after fixing their own, got real smart and now go looking for $2 to $10 "BSOD" monitors at GoodWill, Salvation Army, and second-hand, resale shops to repair them and turn them into good working units that will work for 2 or more years.They then turn around and sell them for 4 times what they put into them. By the way, nyecop, do you know how to do the FLASHLIGHT TEST and evaluate what the monitor's "switch-mode-power-supply" is doing? You WILL if you read some of my older responses in my profile and follow some of the many leads. You might pay a visit to www.ccl-la.com/badcaps.htm , www.lcdparts.net , and check out the stuff on YOUTUBE. Well, anyway, from you're description above, It' my best guess that the SMPS inside the unit will require some work to repair it. You will also learn about HOW a lcd monitor works. Hope to read a comment added by you after you do some reasearch and make a decision or your course of action. Bye for now, 12fixlouie aka louie12fix

Posted on Nov 14, 2009

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  • Master
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There are two places to look for the problems, the backlight inverter board and the power supply. Look at the power supply first since it is easier to get to, look for burnt parts, bad capacitors, etc.
http://en.wikipedia.org/wiki/Capacitor_plague
Please post back what you find.

Posted on Nov 14, 2009

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Posted on Jan 02, 2017

paulbtorrent
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SOURCE: ACER AL1914 LCD Monitor goes black but green light stays on

The monitor is doing a self test a finding an error.
The lcd has three parts, the screen plate(windows)/the logic(vga)/the inverter(power plug). Parts that go are the backlight ccfl's, behind the plate, and parts of the inverter, ie capacitors, all three take a bit of power from the inverter. The self test check that all the lights are ok and the inverter is ok, else it switchs off, ie if 3/4 light work it will switch off(my own case), hence the on chech error then off, However sometime there are stages of on/off ie on/ but no screen display, if that is the case the following may be of help...if you put bright light at an angle close to lcd can you see a windows shadow, text icons etc, ie still logic power passing,then .... (from a.n. other) after two weeks searching I finally find doctor living stone http://www.aplusperfect.com/articles/lcd_capacitor_repair more fun with paulbtorrent
the takening the case bit off is like opening your wallet a second time after buying a new LCD, but you must! smallest two screw driver's flat headed, practice using two pennies stuck together()with your fingers after, one little () move and inch and {} again, with the case , it does not break, just need to lever open
[once open you realize they somehow put that old briefcase clip inside!] also note the bright light test to do first to see if can see a windows screen , and that capacitors are one for a number of things that a make a inverter work! there a transistors as well, given that however, to replace all the capacitors on my inverter, was 11 capacitors, cost me $11 (uk ebay) and already had the iron and solder. So only cost me me $11 to try and see but no luck , still fun and I still can see the screen for 2 sec' at a time plus I have a spare set of caps now in the event that the new one do go burst! you have to laugh really, what next , a new on/off button, as you work though the whole inverter mmmMMMMmmmMMMMmmmMMMMTim Berners-leeMMMMMmmmmMMMMMmmmmcome back all is not wellMMMMMMMMMMnnnnnnweek later land sight mmmmmMMMMMMMMMmmmmgggggggg(from
another a.n other)Generally, if the screen went out quickly, it was the inverter. If it went out over a slow period of time (flickering etc..) I would bet it is the lamp.replaceing the lamp should be pretty challenging. as that requires complete breakdown of your LCD, extraction of your dead lamp, and soldering in your new lamp... but I would like to say that I it did this after realizing it's 2 x kitchen strips inside [========] with wires that can connect back to the inverter with out any desoldering(ie kit assembly/dis) with the outter case remove (glass plate safe away) I could reconnect and see that 3/4 were working (i!i hardcard ) cause the inverter to switch off after a secound ! order bult and replace and going
to cheap and see if I can get away with fitting a 15" in my 19' as it a 1/3 of the price ! the market as drop out there, hope the inverter does not miss the length, or the screen out put.http://www.lcdparts.net/howto/troubleshooting/LaptopCCFL1.aspx OR MONITOR

Posted on Feb 08, 2010

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