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Viewsonic VG2230wm CCFL to LED conversion

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    Viewsonic VG2230wm CCFL to LED conversion

    Hi Badcaps,

    You helped me replace some bad caps a few years ago and I'm hoping you can help me turn the CCFLs in those monitors into LEDs. I've attached pictures of the PS from my monitors and of the LED driver boards.

    I've also included the threads I was looking at to accomplish this on my own but I'm daunted by the task. Unfortunately, those threads peter out before the conversion is replaced. If I can get some help here, I'll be glad to post complete finished conversion pics.

    I'm not really looking to remove as much stuff for a "clean" install as some of the threads attempt. Just, as the say, wanna get it done. Let me know if these pictures are not clear enough. Thank you again, Badcaps members!

    The PS board is: DAC-19009 AF rev. 01A

    The previous forum threads are:
    https://www.badcaps.net/forum/showthread.php?t=76643
    https://www.badcaps.net/forum/showthread.php?t=55502
    https://www.badcaps.net/forum/showthread.php?t=44911
    https://www.badcaps.net/forum/showthread.php?t=44251
    Attached Files
    Last edited by wolrab; 10-15-2021, 12:57 AM.

    #2
    Re: Viewsonic VG2230wm CCFL to LED conversion

    Oh, this is the description from the Ebay listing of the LED driver:
    If your monitor is a high-voltage integrated power supply board, then: the board energized, find 12V (capacitance), and then unplug the power supply,
    use a multimeter to find and 12V (capacitance) Disconnect original connecting
    the negative terminal, the board received three line: 12V, ON, GND, the 12v of the inverter connect with 12v positive
    electrode of hign-voltage intergrated power supply board,GND is connected with the negative electrode, ON connect with the ON / OFF
    In simple terms, tThe original high voltage power supply is disconnected,instead of the inverter,
    In the original high-pressure front to take power
    VIN: voltage
    ENA: on/off
    DIM: ADJ adjust brightness
    GND: connecting Ground

    Comment


      #3
      Re: Viewsonic VG2230wm CCFL to LED conversion

      Did the lamp(s) burn out in VG2230wm, or are you just doing this for fun?

      I'm highly sensitive to LED backlighting, even on the highest quality monitors or ones with various "eye care" features. No matter how optimally they are adjusted or calibrated.

      I'm always on the lookout for new (old stock) ccfl monitors, just so I'll have some spares for whatever the remainder of my lifespan is.

      So, I just can't imagine converting a monitor to LED backlighting.

      If it wasn't lamp failure, what is your inspiration for this project?

      Comment


        #4
        Re: Viewsonic VG2230wm CCFL to LED conversion

        So, these monitors are being used as tertiary monitors to display some DAW software. I was planning on making the switch to LED because one of the CCFLs on one of the monitors is visibly failing - though should still be functional for some time - and I wanted to make the switch myself so I would know the CCFL was disposed of properly and not in the trash if I were to give them to someone with them subsequently breaking.

        However, you do bring up something I was wondering: many of the after photos for the upgrade do show very visible, non-uniform lighting artifacts owing, obviously, to the discrete lighting units. Is it really obnoxious or distracting as you mention?

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