Question about BenQ T701 TFT 17" LCD Monitor

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Power ok but No Display

I have power going on my monitor. the green led is on but nothing appears on the monitor, no flickers nothng at all even I tried to see wheater there is a problem with the screen light but nmothing at all. The monitor is receiving signal cause when I switch off computer the power LED will chnage its status to orange. Any help will be appreciated Thanks Liam

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Re: Power ok but No Display

See this one

Posted on Dec 12, 2007

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SOURCE: Monitor

see this post

Posted on Dec 16, 2007

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Display not working, power button LED turns on blue for 1 second and won't turn on again

Have you tried checking with another monitor. Meaning that if the second monitor does not come on then the problem is with your computers mother board. But if the monitor other monitor you check it with comes on then of course it is your monitor.

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Please check it monitor color adjust button. If ok then you check it monitor cable if change possible then change it or power cable also proper connect. If not solved contact Good Monitor technician.


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Monitor keeps blank even the power lLED is on green

Try replacin a new display card. If it is fine working.ok
If not try fixing for cold solder in the video section.
I suggest video section according your report the light green LED lighted that shows the power section is doing fine.

Apr 22, 2008 | Proview PL913S 19" Flat Panel LCD Monitor

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Monitor keeps blank even the power lLED is on green

If it's working fine in DOS, it can only be your display drivers for your operating system. What happes when you start in SAFE MODE? When you PC starts, keep pressing the F8 key, go to Safe Mode. If it works, bring the Resolution down to 800 X 600 and load the new display card drivers. Restart, should be fine.

Apr 22, 2008 | Philips Standard 104S 14" cRT Monitor

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Hi Abadir, It really sounds like your back light has bit the dust. I can't always see stuff on the LCDwhen the back light is out. Check in with for parts, and repair of your monitor. I truly hope this helps. Good luck.

Oct 09, 2007 | BenQ T701 TFT 17" LCD Monitor

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Screen not appearing straight away

It could be your LCD backlight giving you problems till it warms up. Turn you computer on and while the monitor is displaying black and the power LED is green shine a flashlight in the lower left hand corner of your screen. Look for the ?Start? button, if your backlight is not working you?ll see a faint ?start? button if you look closely. A 15" LCD monitor is probably not an economically repairable problem unless you have access to really cheap parts and have the skills and tools to do the repair yourself.

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Blinking Light

This is the same problem with my 4 VG800 Monitors, you should be able to find the correct capacitor on your monitors by following the same procedure, I'm sure the boards are similar. Just get the correct value capacitor and try it in parallel with the initial filter capacitors right after the DC power in.

Alright, I had 4 VG800 monitors with the exact same problem. The front led is blinky OR constant reddish/orangish OR picture is white with colored vertical lines OR no picture with whistling from the back of the monitor and backlights illuminated. All problems have the same solution. You need to disassemble the monitor (2 screws on the back, remove lower front button panel, remove 2 screws holding panel in and remove speakers, then remove panel and unplug speakers. Now remove lots of tape and screws from the cover in the center of the monitor). Now that you've exposed the amplifier board and the VGA to LVDS board, you want to look for the pair of 25V 100microfarad capacitors that are nearby the DC power in (they are right next to the black "100" inductor). Desolder the capacitor farthest from the DC jack and replace with an electrolytic with the same specifications. If you want to check that this is the correct solution please put the new capacitor (WATCH THE POLARITY) in parallel with the capacitor there want watch the front panel indicator go green and the monitor work properly.

I'll be posting and Instructable entry in the next few days on the process, watch for the username Waterppk on the website


Dec 11, 2006 | ViewSonic VX910 19" LCD Monitor

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