Repairing LCD Monitor Samsung 940NW

Today we have repaired a LCD Monitor Samsung  with model no: 940NW, came with symptoms that will not to turn on and the led is blinking.

I opened it and saw that the electrolytes in the position C109 (1000uF/25V) ,C110 (1000uF/25V) and C113 (820uF/25V) are cracked and  then I replaced  them with the new capacitors and I solved the problem.



P1060529 P1060530 P1060532 P1060533 P1060534   P1060536


  1. Ilev55sz January 17, 2012 10:23 pm 


  2. Chicotecni March 14, 2012 5:56 am 

    Did you have the eeprom file of this monitor with PCB LS19HAN and chip  MX25L1005 for download?

  3. Beautystavros April 4, 2012 12:54 pm 

    Thank you for your help…..

  4. Dudu September 23, 2013 6:57 pm 

    Same monitor, same problem, but in my case, the C113 capacitor is not damage. What do you recomand? Change it or not?

  5. TehnikService September 24, 2013 8:58 pm 

    First you must check power supply 5V 12V is they ok , and tell me what you have measured or which component you have replaced?? Also replace all caps..

  6. David October 27, 2013 1:57 pm 

    Hi, i just got a problem with this monitor, the blinking led does, “blink-pause-blink-blink” on every cycle for at least 5 min and the monitor goes back online (this feature it happens when im not using the computer but the pc in on). I have open the circuit that have seen the electrolytes in the position C109 (1000uF/25V) was some like powder on it, what do u suggest?

  7. Gatewaypc112 May 10, 2015 12:41 pm 

    what is capacitors (C113) uF and V?

  8. TehnikService May 10, 2015 6:45 pm 


    C113 (820uF/25V)

  9. Gatewaypc112 May 24, 2015 11:37 am 

    i change capacitor and screen not work. my board emit sound, i short-circuiting the biggest capacitor and it make spark, now the board is silent. What do now with board?

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.