Question about BenQ FP71G 17" LCD Monitor

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Benq fp71g+ screen is flickering colours (green and magenta) everytime i change the contrast. it is also causing the screen to flicker almost like static

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Check the refresh rate of the monitor.

Posted on May 01, 2010

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If your LCD TV or monitor has stopped working, or is displaying one of the following symptoms, then it's a candidate for some new capacitors
- Flickering screen
- Screen image disappears after several seconds
- Dim screen
- Slow start
- Power LED on, but no picture
- Unusual colors and/or lines
The primary cause of LCD TV and monitor failure is caused by faulty capacitors. You can examine the capacitors in your LCD TV or monitor and actually see if they are bad.
If they appear bulged on top, then they need to be replaced.
New capacitors will solve a host of problems in LCD monitors and TV's and will extend the life of your monitor or TV by several years.
Check the cables, connectors and connections.
Take it to a repair shop.

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the problem you are having is the colour wheel. it spins to correct the colour on the screen when it fails you get wrong colours and flicker... the motor on it fails after time. and will need replacing.

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I have a new BenQ G2220HD monitor connected to my MacBook as an external display. Since I've had it, it's had problems such as flickering pixels, lines that flicker, screen goes gray and flickers and is...


Your onboard video card is going bad on you computer. Some shops may sale an external video device which can be installed in place of your onboard video and it will fix your problem. Average costs aer about $50. Before you try YET ANOTHEr monitor, please try to hook the computer up to a tv to see if the problem pesists, if so, it is time for the above video adapter

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Oct 12, 2010 | BenQ FP71G 17" LCD Monitor

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Sounds like you maybe having problems with puffy caps on the either the power board or the main board. If you can open up the monitor its easy to see, normal caps have a flat silver surface where puffy ones the surface isn't flat and it looks puffy like its pregnant.

All you would have to do is replace the capacitors with ones of the same value.


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Contrast decreases to Zero


Had the same problem recently with a Benq FP71G+. It was still under warranty so I called customer care and they sent someone who replaced the board inside that contained all the buttons. I saw that the board was very easy to remove. He just unplugged it, and plugged in the new one. And its a very small board so probably doesn't cost much in case your monitor's warranty period has expired.

Jan 19, 2009 | BenQ FP71G 17" LCD Monitor

1 Answer

Sony Trinitron Colour TV Stopped showing and switch light flicker


The vertical output IC has failed/Power to the vertical IC is out/ or there is bad solder on the pins of the vertical output IC.

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Hi there

This is normally only one of two things : Cable or Mainboard

The W5000 is quite a new Projector and should still be under warranty.

But try changing the cabling first and if the problem still persists , let BenQ replace the Mainboard.

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If you have some electrical equipments like CVT, UPS near to your monitor, please put them away. If the flickering is due to the maganetic interfearence then it will solve your flickering of screen. and even after this if you are not able to use your monitor buttun then please call your technical expert b.coz your monitor may got some physical problem.


Thanks
Iqbal

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Sorry to say, it sounds like a bad picture tube, But could be also the capacitor that filters the screen voltage on the crt drivers. In all my years though, your complaint has been the picture tube. Good Luck.

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