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Monitor stopped

Discussion in 'Electronic Basics' started by Ryan, Aug 16, 2003.

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  1. Ryan

    Ryan Guest

    One of my monitors, a 14" Sony CPD-1425 (I think was the model) stopped

    Was fine, rebooted the computer, upon restart the LED never switched
    back to green from orange.

    It is now in the same state of dead.

    Based on such little information, is there a range of likely culprits?
  2. Jon Hunter

    Jon Hunter Guest

    (Forgive me if I'm being over informative) The light staying orange means
    it remains in powersaving mode, which says it isn't receiving a signal.
    It is possible the monitor could have died in that instant, but doubtful.
    It is more likely the computer isn't posting. Try this:

    turn machine off.
    unplug power to machine
    unplug mouse and keyboard.
    wait 60 seconds
    plug mouse and keyboard back in
    plug in power
    trying booting again.

  3. numberdude

    numberdude Guest


    Easiest test is to try a different monitor. If you don't have one, check the
    video card. Sometimes they come loose and have to be pushed back in. Also,
    make sure the monitor cable is plugged all the way in and there are no bent
    pins. Could be the monitor OR the video card. Another test is to hook the
    monitor to a different computer if you have one. Finally, check Device
    Manager (I'm assuming you have Windows) to see that the display driver is
    installed and working properly. Monitors do die, but in my experience they
    usually die gradually. But of course, anything can happen.
  4. Ryan

    Ryan Guest

    Easiest test is to try a different monitor. If you don't have one, check the

    Yes, I tried the suspsect monitor on another computer and confirmed that
    it is dead. That original computer has been running fine for 4 months.
    This monitor's symptoms began 4 months ago, I've been too busy to think
    about it since then.

    So, the PC is not the problem, I established that within minutes of the
    ordeal. The monitor never exhibited a response with any other video
    card on any of my other computers.

    The plug looks ok. The pins look ok.

    What I was wondering, is if we then assume that the problem is not any
    external factor and is in fact an electronic fault of some sort within
    the monitor, then what is the order of operations of troubleshooting
    when it comes to monitors. I don't plan to open it up right away,
    instead I'd like to do as much reading as I can on the topic first.
    This is the first monitor that I will have messed with, but not the
    first thing I've repaired or attempted to repair. I don't know much
    about the various sections of monitors, how those sections work, what is
    common and uncommon, what is easy to test first, and so forth. I spent
    weeks trying to dig up literature on amplifliers, for example, but hoped
    I might get there more quickly by asking this time. If this is
    appropriate only for .repair, then I can redirect there.

    At work, we get a fair number of dead monitors coming through. I'd like
    the option of getting some of them up and running again rather than
    pitching them.

    Thank You.

  5. Obviously a number of things could cause the symptoms you describe, but
    perhaps a good place to start reading if you haven't already would be:
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