BenQ T701 TFT 17" LCD Monitor Logo
jojo stewart Posted on Mar 02, 2007
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Moniter when switched on my monitor flashes on very briefly then the screen stays black but the green power light stays on have you any idea what the problem is and can it be fixed or is it easier and cheaper to just buy another monitor

  • Anonymous Feb 15, 2008

    same problem but with a en 7220 envision im looking for the cheapest answer wes in florida

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3 Answers

A

Anonymous

Back light generator problem...common.
2SC 5707 transistors died.

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  • Posted on Dec 16, 2007
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See this post
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  • Posted on Mar 02, 2007
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Does it display a picture for a few seconds before it goes blank. or do you not get any picture?. i think i might know what it is but if you could let me know :-) All the best John

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WHY IS THE GREEEN POWER BUTTON FLASHING ON MY MONITER AND THE SCREEN THEN GOWS BLACK

When the power light is flashing the monitor is not getting a stable signal. This is hard to answer without direct troubleshooting. Check the cables first, make sure they are connected securely. If you still have problems test another monitor you know works or move monitor to a computer you know works, this will determine if the monitor is the problem or not and tell you if it is your "graphics port or adapter". If another monitor works fine, use the working cables to test the "broken" monitor. If you have an "all-in-one" computer, ignore the above steps and use a start-up repair disk. The reason this is hard to troubleshoot is there are so many things to diagnose. More than likely your "graphics card" is failing. These are some tricks to repair. You can update the driver, buy a graphic card separate from the stock port.
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Power leak causing overload on the O/L sensor.

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Monitor will appear to come on a "no signal" sign flashes up then the screen goes black. If you press the on off swich the green light will come on briefly then go to orange and then disappears completely...

could be a number of possibilities, lcd backlight is going bad, bad capacitors on the power board, lcd cable needs to be reseated, power board needs to be replaced. Best possibility would be to take it to a repair shop and see what the costs would run to fix it.

If its more then the cost of a new monitor then get a new monitor cause you would get the warranty.

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Check to see if the video cable is connected at both ends securely.
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if monitor light is on, check the connecting data cable if it is ok then consult a technician.
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Hey... friend,

It's seems your backlight inverter is burnt out...need to replaced a new inverter. Visit this site @ www.3rd-rocks.com There's a replacement parts for your FP988D LCD. Have a nice day!
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Monitor displays breifly then goes to blank screen

The green power light indicates that the monitor is receiving from the computer correctly. I suspect it is going into high voltage shutdown. There is a safety circuit that monitors the high voltage and shuts the monitor down if it sees anything amiss. So the monitor comes on and then shuts off. High voltage problems are generally not worth trying to repair. Another example of a worthless safety feature. High voltage failures are not dangerous, and adding the safety circuit just kills the unit when it may have some life left or worse, sometimes it is the shutdown circuit itself which fails!
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MONITER LIGHT IS GREEN BUT ONLY SHOWS A NORMAL SCREEN FOR 1/2 SECOND THEN TURNS BLACK

HI. I had the same problem with mine. It would flash the screen on for a split second and then turn black, the whole time the power light remained green. Upon opening up the case, I pulled the combo power supply board/inverter board out for inspection. I noticed one of the capacitors had a bulge on top indicating it was bad. It was the the 680uf 25v capacitor. I desoldered it, and soldered in the new one. After hooking everything back up, bingo!! Monitor now works perfectly. I couldn't find an exact match to the capacitance locally, but I had a 1000uf 35v cap in my utility box. It worked fine as a replacement. You can usually go within 30 percent of tolerance and be alright. Just don't go under on capacitance or voltage. I hope this helps.
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