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Magical way of testing T-Con boards??!!?? - what kind of sorcery is this???

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    #1

    Magical way of testing T-Con boards??!!?? - what kind of sorcery is this???

    Please give me your opinion on this test method.
    i have never seen anything like it but want to give it a shot ASAP!
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    #2
    In the comment section the guy says "Removed a coil from the Power Supply and solder an LED bid on to both legs of coil"

    nothing by way of specs unfortunately

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      #3
      the test coil captures a portion of oscillating current from the board coils, maybe the used led has an integrated resistor, it's a short way to test if the converter is ON or OFF, without searching the test points, the rest is a common issue of bad cap, when a coil is OFF other ones are too, size of coil does not much matter , the important is the limiting resistor for the led, you can use visually a similar coil of the video, try different ones..

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        #4
        he wrote to save time,,, but if we check if there 12V on Fuse of t-CON we go straight to disconnect one half then U ribbon to have 3/4 display.
        magnetic coil with LED here work same as wireless charging.. LED < 1.5V like the one RGB one or standby LED , so why this circus needed !!

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          #5
          I am hoping that this can tell me if a T-Con is actually working and active. Testing for power at the fuse or on the rails is one thing but i think he placed tbe coils over the Chips/BGAs to show that they were actively processing signal (ie current flowing through them) even though nothing was showing on the display.

          Many T-Cons do not have status LEDs on them so there is no way to know if they are functioning or not unless the TV throws a blinking code.

          i have a Sony TV which i have been trying to fix for months. I have sound and everything but no display. Its either the TV or the display and there is no way to know for sure except by process of elimination. I had to order a replacement T-Con bcos there was no other way to know if the original is good or bad.

          i would love it if this little trick could help verify this one way or another!

          Do you think this would be a good tool for this?? Given that removing FCC cables on sonys dont really work in troubleshooting like they do in other brands.

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            #6
            not on Chips or BGA.. this used only on Filter coil, because these coil will produce magnetic Field Strength, at the end its useless

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              #7
              Originally posted by Diah View Post
              not on Chips or BGA.. this used only on Filter coil, because these coil will produce magnetic Field Strength, at the end its useless
              Oh i see. I assumed chips produced a field strong enough for this little tool.
              still an interesting tool/trick and i'll try to make one to see if incannfind any real world use for it.

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