CKV Short Killer

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • kevin_allein
    Member
    • Dec 2023
    • 45
    • Germany

    #1

    CKV Short Killer

    Hi, recently I found a lot of videos on YouTube regarding CKV Short Killer. All of those Videos seem to be from Asia (e.g. in Hindi). I could not find a single English Video. Translation on YouTube on those videos does not work well, so it is hard to understand details.
    Basically it seems to address the frequent problems of LCD panels, when CKV and CKVB lines have some short and the only fix is to cut those lines or use tape on the ribbon cable to the secondary scalar board of the panel.
    Does anyone have any experience with that ?
  • Diah
    Badcaps Legend
    • Feb 2013
    • 6355
    • Germany

    #2
    dont trust Hindi Videos at all... they generate fault on TV and then they play that they discover the issue. 99% do this fake.

    CKV come direct from MB via LVDS.. if there short need to inspect MB , as yours other threat.. i would inspect the PWM on MB. spark which u faced before a serious issue kan kill PWM easily.

    Comment

    • kevin_allein
      Member
      • Dec 2023
      • 45
      • Germany

      #3
      Well the disconnect all boards and inject the high current only into the panel to burn through the short. That does not sound so wrong, does it ?

      Comment

      • nomoresonys
        Badcaps Legend
        • Jan 2013
        • 12093
        • U.S.

        #4
        Sounds risky but if someone is sure the problem is inside the panel, guess there's not much to lose, even if it doesn't work.

        Comment

        • Diah
          Badcaps Legend
          • Feb 2013
          • 6355
          • Germany

          #5
          Originally posted by kevin_allein
          Well the disconnect all boards and inject the high current only into the panel to burn through the short. That does not sound so wrong, does it ?
          this is rubbish talking. sorry.. .. same to yours last answer from Italy on other threat... yours T-CON are ingratiated at MB not at panel-... the work and testing should be at T-CON circuit at MB always

          Comment

          • kevin_allein
            Member
            • Dec 2023
            • 45
            • Germany

            #6
            found this explanation, that seems to make a lot of sense to me:

            https://www.ornatepixels.com/2024/02...nd-common.html

            Comment

            • kevin_allein
              Member
              • Dec 2023
              • 45
              • Germany

              #7
              and here a really good video describing what he does:
              https://www.youtube.com/watch?v=8aARF3tzz0M

              Comment

              Related Topics

              Collapse

              • DynaxSC
                Extreme High Current & Low Voltage Short Killer ??
                by DynaxSC
                Hi Folks

                I'm looking for a extreme high current short killer solution for a reasonable cost.

                I have an LGA1700 motherboard (ASUS PRIME Z790-P WiFi) where I exchanged the LGA socket already 3 times, and every time after the socket exchange I get a short of power supply lines VCORE (V variable) and VCCIN_AUX (1.8V).
                After taking off the socket, the shorts dissappear again.
                The soldermask on the socket is already partially demaged from the heat, so I have reconstructed the soldermask by manually painting the missing soldermask parts with a very small top of a...
                10-15-2024, 10:13 AM
              • jordanaudio1
                Samsung TV UN60KU6270F power supply
                by jordanaudio1
                Trying to learn electronics repair as a hobby. I have no formal training in electronics, circuits, etc. Everything I know, which isn't much, has been learned from watching youtube videos, reading books, forums, etc. This means, sometimes I have a hard time understanding and interpreting what's important when I look at datasheets, and such.

                My brother has a TV that I'm working on now. He said he was watching it, he heard a loud pop and it went off. I used my DMM to check the fuse, it was blown. From watching lots of hours of electronics repairs on youtube, I figured that was just a...
                07-07-2025, 07:38 PM
              • Stephen
                MacBook Pro 14" A2442 Short on PPBUS_AON but no short present when injecting voltage!
                by Stephen
                I check PPBUS_AON and there is a short present on the line, the computer shows a short when testing for short to ground, so when I inject voltage into the line, I get 0AMPS so no short is showing up. I have replaced a blown cap on this board that exploded and tested for the short and it is now removed. Any suggestions? I tested voltage at the line when the fuses are connected and I am getting 1.2 Volts at the line.
                02-06-2025, 12:03 PM
              • Victor Moreira Silva
                Acer Nitro 5 LA-L181p power LED turns on by 5 secs (Short on PCH rail?)
                by Victor Moreira Silva
                Hello everyone,

                I'm trying to repair my old Acer Nitro 5 (AN517-54-55T5). I've already bought a new laptop, so this is more of a learning project. For the experience, with no high expectations of success.

                Well, my decice specs are the following:

                Model: Acer Nitro 5 AN517-54-55T5
                CPU: Intel Core i5-11400H
                GPU: NVIDIA GeForce GTX 1650
                Motherboard: GH51G LA-L181P Rev:1c

                The symptom:
                When pressing the power button, the power LED lights up for about 5 seconds and then turns off. Initially, the issue was intermittent: sometimes...
                05-26-2025, 10:49 AM
              • aaronkatrini
                Help me find the short circuit on this WORKING Nvidia GTX1650
                by aaronkatrini
                Hi all,

                Recently picked up this GTX1650 at a local flea market for a low price and wanted to use it on my secondary PC. I first tested the card and saw the fan spin for a split second and then nothing. Immediately I thought of a short circuit. Disassembled and found a shorted SMD capacitor, injected voltage into it (1V/4A) and two Mosfets got hot immediately (QN3103 & QN3107). Desoldered these Mosfets and the card turned back to life.

                Bought replacements from Aliexpress and replaced them afterwards. Tried the card but still the saw the fan spin for a split second...
                04-18-2024, 03:15 PM
              • Loading...
              • No more items.
              Working...