Question about BenQ FP591 (Black, Silver) 15" LCD Monitor

1 Answer

BenQ FP591 15" monitor decides to die

I have two BenQ FP591 15" both of which had the same EXACT problem. The problem is that the LED light on my monitor flashes green and orange when it's powercable is plugged in and my computer is turned on but the monitor wont show anything. I can hear a faint 'screeching' sound everytime I try. As I said before, i have two exactly same BenQ FP591 15"'s and the same problem occured with both. I've had them for about 3-4 years now..not sure if the circuit board inside the screen needs cleaning or repairing... I'm stumped, help appreciated.

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  • 5 more comments 
  • Joele Bayburt
    Joele Bayburt May 31, 2007

    I havent changed my graphics card or my RAM since I bought the damn thing.

    I'm not sure what you mean by it being internally or seperate.

    By seperate do you mean with a power cable?

  • Joele Bayburt
    Joele Bayburt Jun 01, 2007

    So you're saying theres not enough power getting to my screen? I've tried all the wall sockets in my house, and it still doesn't work.

  • Joele Bayburt
    Joele Bayburt Jun 02, 2007

    It connects through the back of my computer to a power point adaptor where all my other plugs are.

  • Joele Bayburt
    Joele Bayburt Jun 02, 2007

    okay, i've done that,but no luck. same thing happens either way. going back to my first post, i said that there was a faint screeching sound..i listened to it closer and it sounds like it was trying to power up everytime the LED light flashes green.

    e.g

    Green LED - power up sound - Green LED - power up sound, continously.

  • Joele Bayburt
    Joele Bayburt Jun 02, 2007

    Also, I found out that my screen has a backlight life of about 30,000 hours..

    say for instance, 30,000 \ 16 (16 being average hours a day) = 1875.

    1875 \ 365 days a year = about 5 years life..

    I've had this screen for 4 years now..maybe its life just cut short a bit :P

  • Joele Bayburt
    Joele Bayburt Jun 02, 2007

    I've tried calling them numerous times, but they never answer me, ha.

    Perhaps I'll keep trying them over the next week.. maybe i'll head up there next weekend and get them to take a look at it.

    Also, my dad has a larger version of my FP591.. i think it's 17" and he's had it longer than i've had mine.. no problems with his.

    Also, if both my 15" screens decided to stop working on MY computer..perhaps there is something wrong internally inside my computer..maybe the dust pileup short circuted something in my screen..who knows..

  • Joele Bayburt
    Joele Bayburt Jun 02, 2007

    I've checked everything you listed there. I plugged my screen to my dads comp, still no luck, i checked the cable for any cuts or stray wires sticking out but found none, and no bent pins on the plug or sockets on my computer.

    looks like my monitor has finally lost hope D:

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  • Master
  • 2,985 Answers

Strange that both should show the same symptoms don't you think? Have you changed anything computer wise? Graphics card or resolution? Screeching noise is a puzzle too. How are they powered - internally or via a separate power supply?

Posted on May 31, 2007

  • 4 more comments 
  • john ash
    john ash May 31, 2007

    Yes Internally powered means the the power cable is full voltage[110/220 v] from wall socket to the device.
    Externally mean the wall socket full voltage goes to a stabilized power supply where the out put voltage is typically 12v d.c. to the device[screen]

  • john ash
    john ash Jun 01, 2007

    you saidS
    So you're saying theres not enough power getting to my screen? I've tried all the wall sockets in my house, and it still doesn't work.
    --------------------o0o-----------------
    Or may be none at all
    Answer my question
    how do the screens connect to the mains power supply- direct or through a 'box'
    One screen down possible- two down and something other than the screens must be a possibility.

  • john ash
    john ash Jun 02, 2007

    now we are getting somewhere.
    Connect the the screen directly to the main and not through the computer.

  • john ash
    john ash Jun 02, 2007

    OK perhaps its time to cal it quits- but 2 screens?
    Almost seems as it they have a built in self destruct button.
    In all this have you tried the Tech Support at BenQ?

  • john ash
    john ash Jun 02, 2007

    Also, if both my 15" screens decided to stop working on MY computer..perhaps there is something wrong internally inside my computer..maybe the dust pileup short circuted something in my screen..who knows..
    Hey have you actually tried them on another computer?
    Also what about the data cable, same one is it?
    Have checked for bent pins yet?
    Have I ready said that?

  • john ash
    john ash Jun 02, 2007

    Well now is it worth taking one to a repair shop for a verdict before doing the ultimate?

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