Symptoms Of an LCD Power Supply Problems

Posted in: FYI, Gadgets, samsung, Tech Tips

Samsung LCD and other brands of LCD tv sets had been having problems with their power supply.  Normally it is cause by a blown low quality capacitors on your power supply board.  On my previous post, about on how to fix a Samsung power supply, knowing the symptoms will help you see if it’s an easy fix or not.  Below are what the other Samsung LCD owners are experiencing with their LCD TV sets.

  • Several Clicking Sound on power up.
  • Delay power up, from 1 min to 10 mins +
  • After power up vertical lines appears (reboots normally fix it)
  • Blurry images after power up. (reboots normally fix it)
  • (Worst Symptom) It starts right after your warranty expires!

From the comments on my previous post, it seems like Samsung finally “kinda” acknowledge the power supply problem.  Their are some LCD TV owners that got their warranty extended by Samsung.  This might require a lot of time on the phone but if your not up to the task of fixing your own LCD you can go this route.

If you didn’t see the symptom that you have experienced with your Samsung LCD set and want to share, please leave us a comment!

35 Responses to Symptoms Of an LCD Power Supply Problems

  • andrew

    Replied on: September 10, 2011, 7:03 am

    i got problem with my samsung pl58a55osifxzx power board bn4400183a i replace two times for this board but my tv goes out again and i tried to fix my self but after i opened and check it no show any bad capacitor at sight so please somebody could help me plz thank’s

  • james wright

    Replied on: September 11, 2011, 11:53 pm

    I have a sanyo dp 50747 which is a samsung p50hb004a with a 850hw-yb03 power board. The tv clicks once, then the screen lights up (video 1) for 1 sec, then the rainbow screen, for .half a second, then clicks off. I checked all 6 fuses all are fine. Non of my caps are bulged. How else can i check if the caps are bad. thanks.

  • giorgio pasetto

    Replied on: September 24, 2011, 10:32 pm

    dalla mia di lunga esperienza ho notato che 30 anni fà il componente duravo in eterno oggi dura un giorno , non mi sembra ragionevole , e tuttavia una questione di mercato con tutta la sua disonestà di mercato , e inutile capire perchè e non perchè fuziona e non funziona tanto il danno il guasto ritorna sempre per via del componete che fa mercato cia o …ciao..

  • steven chiverton

    Replied on: November 8, 2011, 10:37 am

    i had 2 blown 2200uf 10 caps on the power board of my samsung tv model la40r81bdx tv so i replced the 2 caps with new 2200uf low esr caps and 35 volts rateing and that dident work the tv still clicks away and wont turn on the tv has some kind of service input at rear but i dont know much about that the last thing i find by googleing is the eeprom and would shorting the pins 5 and 6 really help kick strat this tv so it will turn on

    • Chriss

      Replied on: November 9, 2011, 7:59 pm

      Steven, the only thing I can think is maybe you have the caps the wrong ways. Double check on that and also search for more blown caps. It could be a leaking cap or its bulging from the bottom part of the capacitor.

  • abdullah

    Replied on: November 29, 2011, 9:36 pm

    Hi,steven chiverton Ihave the same tv and the same problem.I changed all caps ,and the diots but the problem is continuesing I couljdn’t find yet.
    If anybody knows please help…

  • vince

    Replied on: December 20, 2011, 8:18 pm

    I changed two blown capacitors and three others just in case, and the flashing and clicking were still there so as suggested on youtube I shorted pins 5 and 6 on the eeprom with a very small screwdriver and the led stopped flashing and the tv clicked only when I pressed on the remote as it should, but there was no picture so don’t know if something else has gone but shorting the eeprom did stop the led flashing and the repeated clicking. It was also suggested replacing the eeprom but this requires soldering 8 tiny contacts which looks very difficult for a novice solderer.

  • Marco Givanni

    Replied on: May 14, 2012, 10:12 pm

    IF YOUR LCD TV GIVING YOU ANY KIND OF PROBLEMZ SPECILY ( POWER PROBLEMS ) PLEASE DO THE FOLWOING
    1- TURN OF YOUR TV AND UN-PLUG IT
    2- TAKE YOUR TV OUT SIDE YOUR HOME
    3- PLEASE THROW YOUR TV IN THE BLUE TRASH CAN AND GO BUY A NEW ONE…THANKS AND HAVE A NICE AND STRESS FREE DAY.

    • Chriss

      Replied on: May 16, 2012, 7:26 am

      This steps should relieve you from your stress! Good Humor. :)

      • Petey Green

        Replied on: December 3, 2012, 7:13 pm

        I am planning on repairing mine,but I love your answer. I will never buy another Samsung.Period…..

  • James Smith

    Replied on: January 6, 2013, 4:48 pm

    I have the same problems as everyone else. My caps look fine, I check the board fro any cracks or breaks bewteen the print, and have found no visible problem with the board. My worse case symptom was a restart that took almost six hours. I went ahead and bought a new TV. Don’t know if I want to spend the money on trying to fix or have someone else fix it. It is a SAMSUNG and my third Samsung (all different model numbers and sizes over a five year period that I have either had problems with lines, clicking, HDMI Ports dropping off. There will not be a fourth. My 1st generation Panasonic 32″ LCD, Sony LCD, and Panasonic Plasma still run like champs. I am now test running a new LG to see where it will take me. People, do your self a favor, stay away from the Samsung products.

  • abdel

    Replied on: April 25, 2013, 1:36 am

    i have problems with power supply PSLF121401 the fuse(5A) blow when i put 220v.Please help me.

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