Question about Acer AL1916B 19" LCD Monitor

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No power the monitor use to cut off for a few seconds and come back on sometimes when first powered up then after about say 4 to 5 hours of use it would switch off at first i suspected the timer so I set it to max time till it would go still did the same .so it could be the 4 capacitors close to the heatsink.but now the monitor would not power up, no power lightorange or green. so is it the capacitors that have expired and cause a break in the circuit board or the monitor itself has failed got just over one year use out of it.cant really buy one any time soon say till the new year.

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Re: no power

Well Good news I got my monitor to work once more As I suspected it was one of those surface transistors it had burnt out on the mainboard.well I searched and searched and could not locate that part so I called the company lets say I just blew more money no help but the tech did try.WEll got the part or one simular cause as it is it would cost to high to send it to the company so I had nothing to lose. so the same time I looked on any circuit board I could get my hand on when I came on a agp card mmx4400 128mb that had stop working and bam there it was the part or one that might work so i tried it and it worked its been working now for over a week now and it works better no more shorts or cut off. so hope this might help someone out there. BAT21

Posted on Aug 26, 2007

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Re: no power

Yup replace those stinkin Caps ya B good to go .. Have had this happen heaps in the shop.. damn designers couldn't design a subway sammy ... lol

Posted on Jul 15, 2007

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4 Answers

Monitor cutting out

Follow steps in sequence:

1. Turn Off Monitor by pressing power button on LCD
2. Shut down computer
3. Unplug power cable from LCD, Once power cable is unplugged from LCD, press and hold down the power button on LCD for 15 seconds

4. Unplug the power cable from the back of Desktop Computer and Hold down the power button on desktop computer for 15 seconds

5. Plug the power cables back into the LCD and Desktop Computer

6. Power on computer and then power on LCD, it should work

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Depending on the make and model of TV, there's sometimes a menu option to set the display. This is often only accessible via the remote control - somewhere!!!

Waiting for your reply..

Feb 23, 2008 | Computer Monitors

1 Answer

Screen goes black

More likely to be in the power supply/inverter baord:

Look for bad caps first, but it can also be in the lamp assembly, you will need lamp tester and inverter tester to verify that.

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1 Answer

Picture goes black at random intervals

There are 4 c5707/5706 in the inverter transformer driving circuits, the cause of the problem was due to poor solder connection in the bias circuits of the transistors. Make sure to check that after you install the new transistors otherwise you will blowthem up. Common problem with this model. When the circuit drwas too much power from the power supply, it will shut itself off to ptotect itself.

Dec 16, 2009 | Dell E173FP 17" LCD Monitor

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Monitor loses all power and blackscreens

I've experienced the same problem in a large environment and found that capacitors within the pc itself were swollen...replacing the motherboard solved the issue.

Dec 09, 2008 | Computer Monitors

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Monitor goes off after a few minutes of use. when pressing the on/off button, sometimes will turn back on. if left alone will turn back on after a few minutes. when computer is off, sometimes will turn on...

1.check power supply section any dry points
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Oct 06, 2008 | ViewSonic VX910 19" LCD Monitor

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RE:monitor goes black

Monitor going black after a few seconds can be causd by a faulty power supply or inverter. Some monitors have both as one unit.
Sometimes it is basic failed capacitors, After that then I would look at transistors.
The average monitor from 17 to 20 and sometimes the 22s have usually 4 bulbs in them. One bad bulb will also cause the inverter to not fire up.
Bad bulbs usually show pinkish tint, or flickering or are dark at center top or bottom of the display.
ebays bammbammfran

Sep 21, 2007 | Acer AL2017 20" LCD Monitor

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