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Benq 09u3, Power light on front panel and screen

Benq 09u3, Power light on front panel and screen not working. White plug around the back,and DCI2V are plugged in as was 1year ago. Now use mac book pro but need to retrieve a document from old desktop computer but can't see screen. Any suggestions ? Anton.

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Posted on Oct 18, 2013

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Saeco Philips coffee machine display screen doesn't light up? I can still use it and I can see the options but with no colours.

Saeco Philips coffee machine display screen doesn't light up?

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Hello, I have a 28" BenQ

Good day!
The problem of your TV is in the back light.
Follow this procedure of troubleshooting to your problem.
  1. Open the back cover,remove all screws at the back.
  2. Plug-in the power cord then power it ON.
  3. Check the input supply of the inverter board.It should have 24vdc.
  4. Then if you have input voltage of the inverter board.Check the output of the inverter board it should have 500vdc so be careful its high voltage.
  5. When your inverter had a output of 500vdc.It could be the cold cathode lamp is busted replace it.
  6. If the inverter board have no output of 500vdc but it have a input of 24vdc.Replace the inverter board.
Try to order here:

Thank you and good luck.

Apr 21, 2011 | BenQ DV3070 30 in. LCD HDTV

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Benq g900w will not power OFF

the benq's im sorry to say but are problematic to say the least

try this...

1. unplug the monitor and flip it forward so its screen side down on a towel.
2. remove the screws from the back of the monitor and then take a flat head screwdriver and gently pry the back/front bezels apart.
3. after the back part and the front part are apart, look at front half of the bezel, there will be a Circuit board that is attached to it. follow the wire that is coming off the circuit board back to where it plugs in to the metal part.
4. firmly press the connector that at the end of that wire down into the connector.
5. put the monitor back together, and test the buttons.

if that does not work then you might have a serioulsy problem such as burnt component.

Feb 19, 2010 | BenQ G900W Monitor

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Monitor goes white.

if the monitor turn white but the power light is stay on with green, then probably the back light tube was defective, and it will happen randomly in beginning and getting worse after while.

Jan 14, 2010 | BenQ FP71E 17" LCD Monitor

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I need to find out where the 3 little plugs go that are connected to the power button theres a blue/white black/white red/white plugs comming from it going to the motherboard

Sometime these connectors from the desktop case front panel have labels indentifing what each connector/plug is for. From your description they could be a reset switch or LED indicators for hard disk or power light etc.
If the plugs are not labeled then trace the wires back to the front panel to identify what they are attached to.
When you connect the LED indicators to the motherboard and it does not light up when they suppose to, then turn the plug around 180 degrees.
The LED are polarity sensitive ie they only light up if the + and - leads are connected to the motherboard correctly.

Nov 08, 2009 | Computers & Internet

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White screen

dreaded capacitor issue. benq's were famous for it. if you are handy with disassembly and careful you can take it apart and do it yourself. look for any capacitors with rounded tops. i fixed one ... the part is only two dollars or so but it's a good feeling to know you fixed it instead of tossing it.


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BenQ FP7IB LCD monitor, turn black aftr BenQ logo

Try to plug into another computer and wait to see.
If it turn up to be same it somewhere defect from the main board of the lcd.
If if not the same turn up to be, you should reinstall the OS because the software is corrupted or your display card problem.

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Benq lcd Displays only white

Most often the all white screen is the result of a missing voltage to the LCD panel. We usually find an open fuse on the panel circuit board. Unfortunately replacing the fuse does not usually fix the problem.

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BENQ FP731s Monitor Problem white blank screen

You have a serious problem. ie. only the back light is working in your monitor. You might need to replace the TFT associate components.

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The screen is white

This is the internal video card of the monitor.
It has either failed, or the cable that connects it to the LCD panel has come out of either the video card or the panel.

Hope that helps =)

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