Question about BenQ T701 TFT 17" LCD Monitor

5 Answers

Benq T701 LCD monitor

Suddenly my monitor is gone black but the power indicator is on. What could be the problem?

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  • cdninchina Dec 03, 2007

    Same issues as others..except during BIT I see the bios options and when windows loads I get a second of seeing windows THEN it goes black. Have tried changing resolution, uninstalling, changing power (110-220) nothing.

    Help?

  • Anonymous Apr 02, 2008

    I have the same problem with the BenQ FP91G+. Last night everything was fine. I come home from work today and BAM... the screen is black with nothing but extremely faint ghost-like images that I couldn't even see at first until I looked at the right angle to catch it.

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I had a similar problem: the backlight on my Benq T701 only functioned for a couple of seconds every time a turned the monitor on and then the backlight switched off (sometimes in two stages). An electronics guru at work said with those symptoms the transistors rarely were the problem and I just needed to resolder the connections of the high voltage coils onto the PCB. On visual inspection those solder connections seemed ok, but when I tried to reflow the existing solder at one connection I spotted the problem: just a thin surface layer of solder was present and I had to add solder to fix the problem. The 4 coils each have 6 leads on one side and 2 on the other. I only soldered the connections on the side with 2 leads. In just 30 minutes and without buying parts the monitor is now up and running again.

Posted on Jan 22, 2009

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The LCD backlight inverter board needs to be replaced. For this brand monitor, it's pretty hard to find. Good Luck to you.

Posted on Jun 24, 2007

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Swaped 2 shorted 2SC5707 and resolderd some dry joints
Now working perfectley

Posted on Jan 17, 2009

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Http://www.lcdinverter.co.uk/env056.htm

this one i guess, going to buy at local electronics store tomorrow..

have same problem, and i have 2 of them...

Posted on Dec 12, 2007

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2SC5707 x4 (lamp driver transistor)....

Posted on Oct 26, 2007

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1 Answer

After start monitors works 15-30 sec, and write Nonpreset Mode! and torn off. Green led lamps light normal.
Replace bad electrolytic caps on power supply module,or just replace power supply, that should fix your problem.

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if you have the receipt or warranty, don't waste your time, go where you buy it and retun it, and they give you a new one for free. 100%

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I brought my benq t701 to a repair shop to due blackout screen. But due to lack of parts, it was not repaired but all 6 transistors were removed from the PCB. Please show me where these transistors were...
go to esservice.com and get the manual from there will be easier as the transistors are directional i believe they are 2sc5707s from memory but you will need to check the transformers and the 2 filter caps on either side of them as if they are faulty will blow transistors.

Dec 30, 2009 | BenQ T701 TFT 17" LCD Monitor

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I have a benq t701 with power problems
faulty power board... possibly caused by blown capacitors..

Jul 03, 2009 | BenQ T701 TFT 17" LCD Monitor

1 Answer

Tech problem
If you can, check the display settings.
Some graphics cards have an option for dual monitors.
Sounds like the card is seeing only 'monitor 2'.
If you have more than one monitor port, try plugging both monitors in.
If no luck, you may have to boot into BIOS at power-up and configure from the menu.
But be careful not to fiddle with unknown settings in BIOS - this is the 'nerve center' of the computer and could cause total digital catastrophe.
If not sure, don't.
Or get expert to help re-configure.

Aug 05, 2017 | BenQ T701 TFT 17" LCD Monitor

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Hi, I have a quick question about my monitor. I have a Benq T701 LCD monitor, I think, and it is not using the bottom inch of the screen or the top 1/2 inch of the screen. How can I reset it to factory...
Should have reset to factory settings in the display menu under settings.

Oct 29, 2017 | BenQ T701 TFT 17" LCD Monitor

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BenQ FP91G+ 19" LCD Monitor black screen
Possibly either the backlight lamp or its associated power supply has failed. Power buttons (mostly LEDs) have constant availability of low voltage (for some other circuits too) otherwise they wouldn't 'wake up' on command from a computer as some do.
The blackout could also be due to a failed main power supply so the incoming video is no longer being processed. 

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check the logic board.

Apr 19, 2008 | BenQ T701 TFT 17" LCD Monitor

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No display
if your monitor is not connected to a pc, then it cannot find a vga signal input and therefore go into power saving mode, which is indicated by the orange light, but as soon as you connect to the pc and power on the light will go green and the monitor will power up.

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see this post
http://www.fixya.com/support/t155971-benq_t701_lcd_monitor

Apr 15, 2007 | BenQ T701 TFT 17" LCD Monitor

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T701 TFT 17" LCD Monitor

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After start monitors works 15-30 sec, and write Nonpreset Mode! and torn off. Green led lamps light normal.

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monitor will not display power light goes on but monitor stays black

Jul 28, 2012 | BenQ T701 TFT 17" LCD Monitor

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this happens when I turn on the t701 after about 3... This happens when I turn on the t701 after about 30 minuters it does'nt matter if I am on line or off working

May 21, 2010 | BenQ T701 TFT 17" LCD Monitor

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BenQ T701 problem Hi! I have BenQ T701 when I switch monitor on it display like tru red glass and after 3 seconds monitor goes off but the power indicator stays on.

May 16, 2009 | BenQ T701 TFT 17" LCD Monitor

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