Question about BenQ FP557S (Silver/White) Monitor

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I have problem with BENQ Fp557c monitor(Q5C3) model.No display.When power on monitor light remains yellow.then PC swich on it turns blue(Same as Green.VGA data OK)I check Monitor mother board for burns.No any mark.Fuse also ok. Any suggestion for solve this problem

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: Benq FP71G LCD Monitor - Can't keep POWER ON / Button Problem?

I had the same problem and found that Q808, Q809 and Q805 had failed and which if left long enough can also cause PF801 to fail. I also replaced all of the electrolytic capacitors during the rebuild as it was only a few dollars to do so.

Although in my case Q815, Q816 and Q812 were fine I suspect that they may also fail in time.

Here are the parts which should be available at most electronic stores or online.

Q808 & Q809 - 2SC5707
Q805 - IRFU9024N

Posted on Jan 22, 2009

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SOURCE: Benq FP92G Display couple of seconds then blank. LED still green.

budged electrolytic capacitor nearby high voltage transformer. 220microcarad/25Volts. apply fresh solder and re-connect lamps.

Posted on Jun 01, 2009

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SOURCE: Monitor displays desktop for a short while

this kind of trouble is very common to all LCD monitors. your inverter is shutting down. please check all capacitors at the power supply some are badged or blown on top due to hot pressure inside.

Posted on Aug 17, 2009

  • 1 Answer

SOURCE: benq 937s monitor stopped working. Green light on but blank scree

I have the same problem and have gotten it fixed twice. Going to be my third time now. Every time, they replace a costly part. I've submitted multiple emails during it's warranty through the tech support form at BenQ's official website and never once gotten a reply.

To solve this problem, pay to have it repaired and auction it in a yard sale to cover the cost. Then never buy a BenQ again.

~ Northkin

Posted on Feb 12, 2010

  • 1 Answer

SOURCE: Where can I buy a logic PCB for FP71G Benq

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Posted on Aug 31, 2011

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1. Verify the monitor's power cord is plugged firmly into the wall outlet and the back of the monitor.
2. Verify the monitor cable is firmly connected to the computer and the monitor.
3. Verify that you have turned the monitor power switch on.
4. If the power light on the monitor is not on, test the wall outlet (plug in a light or something you know works).
5. If the power light on the monitor is not on, try a different power cord.
6. If the power light is on and yellow or flashing, but nothing displays, or the display is incorrect, borrow a monitor from a friend. If that works, your monitor probably needs replaced.
7. Also, you could try your display on a friend's computer. If it doesn't work, your monitor probably needs replaced. If it works properly on your friends computer, the problem may be with your computers video output port, motherboard video chip (or video card, if you have one), or drivers.

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My monitor screen is ok for awhile but suddenly turns a dull yellow color. I just bought it a few months ago.

you must adjust the display settings in the software program that was being used to change the display setting.
  • If you have a flat panel LCD monitor, unplug the monitor power cable, wait about 30 seconds, reconnect the cable and then turn on the monitor. This resets the electronics on the monitor.
  • Make sure the monitor has power - the light on the monitor is on. If the light on the monitor is off, the monitor does not have power. Connect it to a different power outlet.
  • If the monitor has a detachable video cable, obtain a second monitor cable for testing purposes in case the cable is bad.
  • follw the another steps-
  • Replace the monitor power cable.
    1. Turn on the monitor. If the monitor displays an image, you are done. If the monitor remains blank, continue using these steps.
    2. Replace the video cable. Turn on the monitor. If the monitor displays an image, you are done. If the monitor remains blank, continue using these steps.
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    Let me know how you go =)

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