UN55C8000 clicking on and off

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Plurxtc1
    Senior Member
    • Oct 2014
    • 136
    • USA

    #1

    UN55C8000 clicking on and off

    I have a UN55C8000 with a BN44-00363A Power Supply. Normally it would have a cold solder like in this video https://www.youtube.com/watch?v=GOa6WQpus6E but my LM891 did not have a cold solder. In that same area there was two transistors that was short and a diode.
    STD452S
    https://www.ebay.com/itm/27279583007...4AAOSwWJ5ZiWn0
    084N06L
    I couldn't find a US Seller that had it available.
    https://cdn.badcaps-static.com/pdfs/...5b172b054f.pdf
    https://www.mouser.com/ProductDetail...C565RlaA%3D%3D
    The Diode at the end I couldn't make out what it is.

    Any help would be appreciated in finding the appropriate parts.
    Attached Files
  • R_J
    Badcaps Legend
    • Jun 2012
    • 9535
    • Canada

    #2
    Re: UN55C8000 clicking on and off

    The diode marked BCJ should be a MBRM140T1G

    Comment

    Related Topics

    Collapse

    • asr
      Finding replacement diode iPad Pro 3rd gen A1701
      by asr
      Hello, I am looking for help to replace a damaged diode. The tristar was replaced and a diode was damaged in the process. I have a picture of the diode but dont have an exact donor. I mostly have macbooks for donors and only a few ipad and iphone boards. Diode part number: DSF01S30SCAP
      Im not sure where to find the ipad board number. Anybody have an idea where else this diode is used on other boards? Thanks....
      07-09-2024, 06:24 PM
    • unimatrix93
      TV backlight zener diode
      by unimatrix93
      Hello everyone, I'm repairing an LG TV backlight and I noticed some strange behavior when I touching the backlight strip with a missing Zener diode.

      So I replaced the leds on the strips and they seemingly working fine, but soon as I touch the strip which has a missing Zener diode the whole backlight turns off for a few seconds and then turns back on.

      Is this caused by the missing diode? If so what kind of zener diode should I use to replace it?.
      ​​​​
      The led strips has 9 6V leds.


      ​​​
      02-10-2025, 12:13 PM
    • 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
    • NicRac
      monowheel repair,Is the diode the problem?
      by NicRac
      Hello everybody☺️ I am glad to be here and looking forward to a good discussion.

      First of all, I am new here. Therefore I will shortly introduce myself.
      I am Nico and currently I study Physics.
      In my freetime I like to build and repair stuff. Especially big battery's.

      A few years ago I got myself an electric unicycle, monowheel or however you call that.
      The battery bms was broken so I replaced and resolder that. Nothing big.
      I used this thing for some years and had a lot of fun. Unfortunately I used it last time in heavy rain. Usually everything...
      07-26-2024, 06:13 AM
    • dennis_elx33
      NO BODY MARKING Diode
      by dennis_elx33
      Hello Everyone,
      I have 1 diode on a circuit that I suspected to be faulty because the forward and reverse bias has a voltage drop reading.
      While compared to the reading of another diode from the next channel it won't read at reverse bias.
      Now the problem is; it does not have any body marking.
      So I tried to sketch the diagram and found out that it is connected to the base and collector of the C3632 transistor.
      What do you think is this diode?
      Can you please suggest what part number can i use to replace this faulty diode instead?

      Hoping that you...
      06-14-2024, 12:36 AM
    • Loading...
    • No more items.
    Working...