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LCD Inverter Section Capacitor Blown

By on November 19, 2008

blown capacitor

I got this question from my ERG member:

What would cause the blue cap to burst like this? I have had 2 Optiquest 19″ LCD’s with the exact problem. I replaced the cap and it still does not work. What other component would you suggest would cause this to blow up like this?

My  answer to him was:

“It could be the quality problem. Try replace one with a higher voltage ie; if it use 160v then put in a 250 volt. Check all the surrounding components that lead to the capacitor. ”


By the way, if you have any electronic repair questions with any photos you can send it to me and i will do my best to answer you. Have a good day!



  1. Aji Shah

    April 6, 2009 at 3:59 am

    HI Jes...

    I have question about lcd monitor ACER model AL1521
    ,here I include the link for the picture.

    1.How the replacement part for this marking smd ic 4411(This is Mosfet or what?)

    2.where can I buy in local (malaysia)

    Thank you for the help

  2. admin

    April 11, 2009 at 8:06 am

    Hi Aji,

    The best is to use back the original part number. Yes this is a mosfet built into an ic. Sorry i can't get this part from my country and i normally salvage from junk lcd monitors.


  3. Edu

    April 18, 2009 at 1:05 am


    I don't have any photo of my problem, but it's very simple (I think).

    I've an LG 1730S monitor that have a "blink" problem. When I turn it on, it shows the image but rapidly gets black. If I disconnect it from the VGA and wait about 15 seconds at least, it works after plugging it again. It sound like a capacitor. Do you have any advice of where to look?

    Thanks in advance!

  4. admin

    April 18, 2009 at 5:10 pm

    Hi EDU,

    Yes it can be capacitor or it also can be a bad backlight. If all the output voltages are good then suspect either the inverter board or a bad backlight.


  5. pitigoi

    October 23, 2009 at 4:40 am

    9960gh este un mosfet?cu ce as putea sal inlocuiesc?

  6. admin

    October 23, 2009 at 8:57 pm

    ¿Cuántas patas de este 9960 y su uso en la parte de circuito? ¿Está en TV LCD y monitor LCD?


  7. el_ganso

    February 1, 2012 at 7:10 pm

    Hola. Tengo un monitor HP 15" modelo L1506 con la fuente quemada (PWM IC y mosfet en corto circuito) y una resistencia que no se el valor ¿tu me puedes ayudar?

  8. admin

    February 2, 2012 at 8:36 pm

    HI El,

    Sorry at current moment i do not have the same lcd monitor model in my workshop thus i could not see those component values.



    July 20, 2012 at 2:04 pm

    Mr. Esquire: I have a query simple you can modify the AC MOSFET type of the last normal as it can not provide some of the pieces in the market Do you have examples or cut amended to cut the size of the largest kindly send to any scheme or any amendment summit in your career innovation is creativity please help me with some amendments as some of the reform of the amendment of this TV are the pieces but do not say how to monopolize the repair if you've adjusted anything I hope that you send to

    • Jestine Yong

      July 22, 2012 at 12:00 am

      Hi Esquire,

      Sorry I don't understand your meaning. Could you elaborate?



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