Question about BenQ T701 TFT 17" LCD Monitor

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Monitor 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

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Re: Monitor

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Posted on Dec 16, 2007

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Re: Monitor

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.

Posted on Oct 10, 2007

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SOURCE: Power ok but No Display

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Posted on Dec 12, 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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You've got components that have gone bad, probably from age and the normal heat inside a CRT monitor case.

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Is the orange flicker on the screen or on the button?

Does it always stay on or does it go off?

What kind of monitor is it? Flat screen LCD or CRT?

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Hi, The part where you see some color bars and blinking green led is what we call MONITOR SELF TEST. A diagnostic pattern consisting of four colors (red, green, blue and white) appears, and the LED flashes slowly. this happens when signal cable from the monitor is disconnected from the tower and leaving the power chord for the monitor plugged in. If the monitor works properly on a different computer. then its a problem with the computer's video card sending out signal. im 85% sure that its a problem with your video card.

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1 Answer

Power ok but No Display

see this one

Sep 16, 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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Monitor flashes image for split second then goes blank but green LED flashes as well

while the monitor is still powered on, but with the LED flashing, unplug the monitor from the PC. press the power button, and the monitor should go off, now plug the pc back into the monitor. Turn the monitor back on and it should work.

Occasionally this will not work for me, but if I repeat it it normally works

Hope this helps - my problem is intermitant so it may be different to what u guys have

May 02, 2007 | ViewSonic VX924 19" LCD Monitor

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HP f1903 LCD Monitor mild flickering & color variance

I would bet it is the cable or connection. Have you tried connecting the monitor to a different PC?

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6 Answers

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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