Question about BenQ FP71E 17" LCD Monitor

5 Answers

Monitor goes on/off in 2 seconds

My monitor, when I turn it on (after having a very brief sighting of the BenQ logo) it goes off in 2 seconds. Please help me. Thanks to all in advance.

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  • thukhauser Jun 03, 2008

    I also have problem like this

  • Anonymous Jun 15, 2008

    I had the same problem. Resoldering the transistors solved the problem.

    Thank you.

  • garyhui Oct 15, 2008

    I have the same problem, and I resoldered the transistors (without
    replace to a new one) and the problem is solved. However, the problem
    keep coming back now, I have to resolder it again and again...Does any
    know the long term method to solve this problem?

  • Anonymous Oct 16, 2008

    The same problem, resoldering didn't fix it. (but i resoldered just 2 of them)

    The indicator light just for a 2 seconds, than it goes down...

  • umsumayah Dec 09, 2008

    I had the same problem. I didnt need to solder anything, it was just loose connection on the power board.

    Thank you, you all been very helpful for your advice

  • Anonymous Feb 16, 2009

    I re-soldered the transistors and it didn't help
    Still broken

  • rachid coco Mar 07, 2009

    befor the monitor is not light, because one of transistor c5707 is burn ; i replace with the BU407, then the monitor lihgt 1sec and flashign another time then becom black,
    i dont know ???
    hi is must the exactly transistor for working or there is another problem?
    note : I resoldered and chek all other c5707 transistors but the same problem.
    plz help me

  • dionhewson May 11, 2010

    when you say "resoldered the transistors" --- do you mean you soldered in NEW ones and replaced the old ones...or just redid the solder???




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Problem is related to Invertor .If you are Technically able ,resolder power transistors 2sc5707 on powerboard near invertor transformers.
Please rate the solution and provide feedback.
Samir

Posted on Jun 12, 2008

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THANKS YOUUUUUUUUUUUUUU!!! I JUST PUNCH SOFTLY THE CAPASITOR AND IT WORKS AGAIN! WAITING IF IT LAST OR MAYBE LATER I HAVE TO RESOLDER OR REPLACE THEM....

Posted on Dec 26, 2008

Monitor goes on/off in 2 seconds - 21cf173.jpg

I had the same problem. I found 4 transistors named "c5707", resoldered them all and the monitor works fine now. Thank you very much!

Posted on Aug 01, 2008

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I had exactly the same problem. I resoldered the transistors and the problem was solved too. Thank you!

Posted on Jul 29, 2008

I have the same problem and cant find the specified transistors?

Posted on Jul 01, 2008

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Samir

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