Question about Acer Aspire Z3771-UR30P
I have a acer z3771 all in one computer. Every now and them I get a bunch of flickering pixels in a verticle pattern on my screen. They usually start off just a few and then spread all over in about 5 minutes. Once the whole screen is covered the screen goes black and then its back to normal. I just got this computer 9 days ago and I have up to 15 days to return it I need some advice please! What is wrong with my computer?
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Posted on Jan 02, 2017
SOURCE: monitor goes black
Sorry to have to tell you this, but this is common in LCD monitors. The reason that it is going black when it boots is for one of two reasons. You either have a bad power supply that powers your LCD or your LCD's backlight is blown. These can be repaired or you can purchase a new one. But if it goes black 9 times out of 10 is because the backlight is bad. These can be repaired!
Posted on Nov 26, 2007
The problem with this monitor is a leaking capacitor on the power supply board. It is the middle one at the top in a row of three. The value is 10V 1000uf. Common problem for these.
Remove 4 screws from back of display. The case can be popped apart with a small flat putty knife at different points along the two seams. Three latches on each side and two at top and bottom. Push and twist at the latch points. There is a metal cover over the two boards. Power supply board to left. Screws and plugs can be romved. Unsolder Capacitor and replace. Radio Shack probably has them. Maybe a couple bucks. Be sure the power has been off for a while. These also have problems with the button board and corrosion at ribbon cable.
Posted on Feb 28, 2008
SOURCE: Blank screen on AL 2223W
When you switch on the computer and monitor does the monitor power light illuminated?
If not check the power cable, if the power light is on try connecting it to another computer, if it works on another computer then the fault is in your computer or a faulty video cable (try another video cable).
If the monitor does not work then it is faulty, if it is OK then your computy is faulty.
If the fault is in your computer, you didn't exactly pinpoint the nature of your fault.
Does the power light on your computer illuminated when you power up?
Does your computer actually boot up, does it give and beep code (count the number of beeps - 7 beeps usually means video problems, depends upon the type of BIOS)?
When your computer first boots up and you see POST information on the screen then nothing, it is most likely :-
1. The refresh rate of the video card has been set too high beyond the monitor's specification.
2. Video card configured with incompatible monitor.
If you computer fires up and the monitor is OK the you have a faulty graphics card, you need to replace it.
Posted on Nov 13, 2008
I have the same problem on my Acer AL1711. The monitor was out of warranty so I opened it up and found one of the 1000 mf capacitor almost ready to pop. A 50 cents replacement from allelectronics.com fixed the problem.
Not recommended for anyone without experience soldering electronic components to PCB's.
Posted on Dec 29, 2008
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