I have had the monitor a year and out of the blue it stopped displaying a picture. The monitor shows the screen with a beautiful picture for 1 second when turned on or if turned off and then back on but immediately goes blank again. I have tried two different dvi cables and an analog and its always the same. I have also tried it on another system. Other monitors work in its place so its NOT the video card. Any thoughts are welcome. Thank you.
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Disconnect it from computer and power. wait 15 minutes and plug only the power back in, press the power on button. The monitor may display a message that there is no signal or something like that. If that happens the problem is either the cable or the computer. If you get no message then look for the menu button and press it to see if any thing appears. If not find the manual on line and read it. Many times monitors get over-driven by computers to the point that they can't display OR they self destruct.
Another way is to just unplug everything computer and monitor for 15 minutes. Plug in monitor first then plug in computer and press the power button, the display should display the booting information if the cable is good and the monitor is good.
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.
Take it to a repair shop.
this is not a pc problem... this is because the connection loss between pc and monitor... not all pc's have sleep mode in externa vga connection.... it just cuts power off... u can configure monitor of possible to do that..
send me detail on firstname.lastname@example.org
1) if yours LED power on and display of window not giving then problem from cpu.
a. first replace yours RAM and check display.
b. then display cable and check display.
c. Install new Display card and check display, if not giving display it means motherboard have a problem
2) LED not giving power on then problem from monitor
a. replace monitor power cable and check display
b. monitor logic card have aproblem
Same problem - unplug both computer and monitor - hold power button for monitor for 15-30 seconds...then power it back on and then power on the computer. Seems from other sites there is a power issue with the monitor - this worked for me.
firstly stop turning it off and on because you will blow something else like a power board then it will be a big paper weight. next get a torch and when it is powered on and supposed to be showing images, shine the torch at the screen. if you can see everything then you have a broken backlight or problem with your backlight and connections. they cost approx £15 and a little labour, its not a big job. you may be able to do it yourself if you can get hold of a service manual.
A blinking blue light indiactes that your power-inverter board is not
putting out what it should. It needs an overhaul which may be a simple
as changing out the capacitors on the boards.
It could go beyong that to transistors or even a bad bulb.
It will have to be opened up to do that.
A picture may show visual signs of damage. If you can take one and email it to me , I'll take a look.
When you first switch on Does it show Benq?If not the inverter circuit has failed.If you are technically able you can try resoldering transistors on inverter board.If your display is black all of the time transistors could have failed as also related fuse etc.
And yes please check with BenQ Normally these have a 3 year warranty.