Monitor not showing anything

i want data for benq q5t4 moniter eprom 24c04 ic my moniter is not working properly

I have had problems occasionally with connecting a second monitor, too. Hook up both monitors. In the Windows control panel, look up display (or right click on your desktop and select display). Is the second monitor shown? If not, click "detect" and see if it shows up. I have had a couple times where I clicked on the monitor icon in "display" and then clicked "enable this monitor" and it started working. If not, then try switching the cords so your working monitor is the second one. try again and see if it show up. If not, the problem is probably with the video card or video card driver. Try and update the driver for your card.https://www.geforce.com/hardware/desktop-gpus/geforce-8800-gt
If this does not work, the issue is probably the card.

Try connecting the monitor to a different computer, e.g., a laptop.

The power-cord to the monitor seems to be OK.

Check the "data" cable between the monitor and the computer -- try a different cable.

With the monitor turned on, restart your computer, and watch the monitor. The computer should show some start-up messages (white text over black background), followed by the Windows "splash" screen. If it does, the monitor is working correctly.

Hello, sergio, hi, check first your PC, this might be a power supply problem or a memory failure, use another monitor on your PC and see if the symptoms occurs.

check your resolution settings and change to 800><600 and try again.If it does not work at 1024><768 try loading monitor driver In display properties it should show BenQ FP731 instead of plug and play monitor.
Samir

There are many posts that have solved this. Check em out

seems many users face same problem

I've repaired my FP767 just today. It had similar problem.
First of all I thought that I needed to replace CCFL tubes.
Then I noticed inflated capacitors in power supply.
I replaced them all and monitor works as new.

Strange that both should show the same symptoms don't you think? Have you changed anything computer wise? Graphics card or resolution? Screeching noise is a puzzle too. How are they powered - internally or via a separate power supply?

Monitor blanks out due to problems with internal power supply, have a quilified technician take a look at it, BenQ LCD monitors have 3 years warranty