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LCD Monitor Power Supply Modification

By on May 9, 2012

While browsing for LCD Monitor power supply spare parts i saw a website about how to modify ATX power supply into it. Although it was not nice to place behind the LCD Monitor, it works! You can do this modification on your own junk LCD Monitors but not on customer LCD Monitors unless if the customer agrees with your idea. Most of the LCD Monitors are running on 5v and 12 v, what he did was to defeat the original power supply and tapped the supply voltage from the ATX power supply output. Please click on the photo to visit the website.

lcd monitor repair

Some repairers will use universal power supply or power supply from a DVD player to power up the LCD monitors. These power supply modules are smaller thus it can be placed inside the monitor which is more presentable. If you have modified these types of power supplies before we would like to hear your comment-thanks.



  1. beh

    May 9, 2012 at 9:27 am

    thanks very intersting i am sure that it works yes

  2. dicksy

    May 9, 2012 at 12:33 pm

    its a good idea for some times we cant buy spare parts for repair.

  3. Arnel

    May 10, 2012 at 9:18 am

    Sir, I remember I modify the supply of the Dell LCD because the supply is Burn.So I use to replace the supply of the DVD, yes it works but after a month the main board spare parts is burn.This mainboard is smd and the spare parts cannot be read.

    • Jestine Yong

      May 11, 2012 at 12:49 am

      Hi Arnel,

      Could it be the modified power supply output voltages too high?


  4. Manuel

    May 19, 2012 at 8:39 am

    Sir we have 2 units of 19" Acer LCD bought from 2nd hand junk but no power supplies... What we did is to tap  
    a 12 VDC from inside the CPU... We have 600W power supply and until now it is still working... Thanks from

    • Jestine Yong

      May 19, 2012 at 11:20 am

      Hi Manuel,

      Thanks for sharing!


  5. Mhel

    May 19, 2012 at 11:54 am

    I am too done this trick before with my previous ibm lcd monitor, less expensive and you can find anywhere a junk psu, but sometimes it breakdown even with a higher watts psu. I have tried those old psu with only 150watts and it works.
    BTW thanks Jestine Yong, I have learned a lot with your page, very helpful specially for newbie tech like me.
    Dasmarinas Cavite Philippines

    • Jestine Yong

      May 19, 2012 at 11:55 am

      Hi Mhel,

      You are welcome and thanks for contributing your story!


  6. Alex Lee

    August 30, 2012 at 2:30 am

    Old trick for me, but I used this method to troubleshoot LCD monitors instead.

  7. muhammad

    October 7, 2012 at 3:56 pm

    sir, i what buy your book online but idon't know the procedure. becouse i don't have international account,pls assist me to know how can i get it.

    • Jestine Yong

      October 8, 2012 at 7:11 am

      Hi Muhammad,

      I have sent an email to you.


  8. GIRISh

    May 17, 2014 at 3:56 am

    Really interesting and New Trick for me, Thank you so much Sir.

    Sir, Can we use a High/Low (assuming voltages is same as original) Wattage PSU instead of Original?


    • Jestine Yong

      May 17, 2014 at 10:21 am

      Hi Girish,

      Get at least a 80 watt power supply for the Monitor.


  9. Wililiam

    October 23, 2014 at 8:57 am

    Hi Jestine,

    Weve done this trick before with my partner in computer repair.
    We got this problem with two in one PC and LCD in one Hitachi
    brand from Japan. Since he's not that creative with this kind
    of problem coz he's expertise are more on software, we decided
    to replace the dead power supply with a regular/ordinary pc
    power supply. It works. Other than that, I also tried using
    the DVD power supply board in a sub woofer because the 12 VDC
    power supply is missing . I replace and redirect it inside.
    Yes it works again. Jestine keep up the good work.
    as well.
    12 volt and

    • Jestine Yong

      October 23, 2014 at 9:36 am

      Hi William,

      Thanks for sharing.



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