Question about Computer Monitors
My monitor back light is off after a few minutes of use. However if I turn it back on, I will come back for a few minutes again. I notice one thing the picture still there without the back light..........Please
SOURCE: Monitor does not retain picture
Based upon so many people that have the same problem, it probably is a defect... I may call the manufacturer, chances are they are aware of the problem and are willing to replace it or tell you what to do.
I found the contact info here; http://us.acer.com/public/page11.do;jsessionid=4EA0E8447B0D219E50E60867ADA1D9E5.public_a_14b?sp=page74&UserCtxParam=0&GroupCtxParam=0&dctx1=25&CountryISOCtxParam=US&LanguageISOCtxParam=en&ctx3=-1&ctx4=United+States&crc=790373818
Acer America (USA only)
Acer America Corporation
333 West San Carlos Street
San Jose, CA 95110
(408) 533-7700 – Phone
(408) 533-4555 - Fax
(408) 533-4574 - Sales Fax
I also found this part for monitor repair; http://www.acerpanam.com/synapse/forms/webpage.cfm?siteid=7293&areaid=7&website=AcerPanAm.com/us
Posted on Jan 11, 2008
FIXED: I took the advice to replace C110 and C111 with 1000uF 35V
and a pretty easy time prying open the case with a medium-small flathead screwdriver, disconnecting a few connectors, 4 silver screws (2 on the left & 2 on the right of the LCD), 2 black screws on the back of the metal case, 3 black and one brass screw on the PC board, and
it works like new.
HINT: Be sure to insert your new capacitors correctly (positive and negative sides). The capacitor has + and - sides (the - side was marked on mine). The bottom of the PC board (where you apply solder) has a + marked on the positive side.
For the faint of heart: I am an inexperienced and HORRIBLE solderer and know close to nothing about capacitors, resistors, etc. So, if I can do it you can too!!!
Posted on Mar 03, 2009
This is a classic VP930 problem.
It is caused by bad capacitors in the power supply circuit.
Open the monitor, and look at the power board. There are six capacitors. Replace the 220uF @ 25V and the 1000uF @ 16V capacitors. I would recommend replacing them with 35V and 25V capacitors respectively.
If the serial number on your monitor starts with Q8H you could also have a bad IC on the main board. Q8 on the main board is an FET in an IC package. If this problem persists solder a wire from the right side to the left side. There is one pin that turns the IC on and off. All the other pins (per side) are soldered together. Do not solder the pin on the left side that is by itself. Just leave it. Solder ALL the other pins on the left to ALL the other pins on the right.
Remember, do this ONLY if the problem persists after replacing the capacitors AND if your serial number starts with Q8H.
Posted on Sep 15, 2009
It is the picture picture board on your monitor that is malfunctioning, since the power led or button is on, but the display screen goes blank after few seconds, it means the picture board of your monitor has developed fault.
The best thing for you to do now is to take the monitor to a local repairer within your vicinity or any service center to help with the replacement of the picture board because the fault is not something you can fix yourself, in order not to complicate issues.
Posted on May 07, 2010
Tips for a great answer:
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I think you have TFT monitor? If you are having TFT, the issue was occurring because of two problems.
1. Might be your monitor FL invertor was faulty.
2. Or your monitor FL light having problem.
Check with any local service person. Whether FL invertor or FL light having problem?
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