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Question about BenQ T701 TFT 17" LCD Monitor

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Benq T701 LCD monitor

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

Posted by Victor zambezi on

  • 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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Anonymous

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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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LCDfoob

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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

Anonymous

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

Posted on Oct 26, 2007

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see this post
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