samsung ps50c450 clicking, no pic or sound

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • wills123
    Senior Member
    • Jan 2014
    • 72
    • england
    #1

    samsung ps50c450 clicking, no pic or sound

    got this set in to look at for a mate, when switched on it i have stanby voltage 5v, press power button and it just clicks every few seconds.
    Pson drops to 0v and raises with each click, i think mainboard/av is telling it to do this as its detecting a problem.
    I think the psu is faulty becuase i dont get all the voltages marked on the pins where it goes to main board/av,
    i only have pson and stdby, the other pins marked 15v and 5.3v have no power.
    Just after confirmation really that im right in what im thinking
    also i have no voltage going to the control board in the middle
    thanks
    oh the psu is, bn44-00414a
    Last edited by wills123; 03-30-2014, 02:35 PM.
    Tags: None
    • wills123
      Senior Member
      • Jan 2014
      • 72
      • england
      #2
      Re: samsung ps50c450 clicking, no pic or sound

      grounded pson and dont get those voltages from the psu still,it stops it clicking but i cant do the test using the jumper on lvds as theres no power to it or the y-main
      presumably doing this they would be there,
      also tried with everything disconnected to see if voltages come up but nothing.
      Last edited by wills123; 03-30-2014, 08:02 PM.

        Comment

        • wills123
          Senior Member
          • Jan 2014
          • 72
          • england
          #3
          Re: samsung ps50c450 clicking, no pic or sound

          replaced psu and all is working fine now, got one so cheap wasnt worth looking at might what be wrong with the old psu

            Comment

            Previous template Next

            Related Topics

            Collapse
            • B0r1s
              Samsung UE49KS7000SXXH - fast clicking sound in standby mode
              by B0r1s
              PSU - BN44-00878A

              Symptoms:

              The TV turned itself off, and I haven't been able to turn it back on. The standby voltage was unstable and lower than it should be.
              A weak clicking sound was coming from the transformer.

              Video with clicking sound:https://www.youtube.com/watch?v=lAduhjNtqCA

              Progress:

              After the transformer, I measured four Schottky diodes. DM862C and DM864C diodes readings were 003 in both directions. After detaching them from the circuit and measuring them, DM864C was the shorted one. These Schottky diodes are SB550.I...
              01-17-2023, 04:58 PM
            • Sisko
              Onkyo-593 No power and now clicking sound
              by Sisko
              Hi all!!

              Ok just got a Onkyo SKW-593 sub woofer that has no power person told me that it smoked and that his GF let the volume full when she powered off the amp and when he came to turn it on the sub played but then suddenly smoke was coming out, didn't say from where. So opened it up and saw a resistor made of metal (pic) but can't see any writing on metal par so what ever was written on it was burnt. So I'm kinda stuck here with this. I did ask for a repair or schematics in the other group section and waiting for this but I hope someone here might lend me a hand to try and identify...
              Schem
              4 Photos
              10-03-2025, 02:18 PM
            • Document Archive
              Samsung Galaxy Book 2 Notebook Specification for Upgrade or Repair
              by Document Archive
              This specification for the Samsung Galaxy Book 2 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the Galaxy Book 2 boardview and Galaxy Book 2 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download...
              09-07-2024, 05:50 AM
            • slimmy182
              [SOLVED] M1 MacBook Pro clicking sound logic board 5V no power on A2338 820-02020
              by slimmy182
              Hello, I bought this Mac from a friend, he said that it simply stop working. The MacBook looks very clean but does not power on, stuck on 5v 0.42A, and sometimes display 5V and 0A (then 0.071A and again 0A).

              I opened it looking for some problem, it was not touched before for sure and the board is very clena, no spot of corrosion at all from what I can see. Voltage on multimeter of the board off the case it's the same, 5V 0.42A. But then I noticed this "clicking sound" come from the board ( I attached here the audio file).

              Looking on google I found this:...
              01-14-2023, 11:55 AM
            • Ierwin
              Samsung UE60KU6079 backlight okay mainboard responsive, no picture, no sound
              by Ierwin
              Hello everyone,
              Ive got a UE60KU6079 on the workbench that is giving me some headaches trying to troubleshoot.
              The previous owner stated that there had been white dots on the screen which from the description sounded like some lenses fell of the backlight LEDs.
              He had opened the TV from the back, trying to get to the backlight, supposedly gave up, reassebled everything and gave the TV to me.
              I expected the worst like ripped COF cables or a cracked panel but could not find anything like that yet.
              Anyway I still fully expect that there has been something seriously damaged...
              05-13-2025, 03:31 PM
            • Loading...
            • No more items.
            Working...