LCD Light Tube Power Help

Discussion in 'The Projects Forum' started by ManuOfficial, Jan 7, 2016.

  1. ManuOfficial

    Thread Starter New Member

    Jan 7, 2016
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    I took apart an old Samsung computer monitor.
    I managed to salvage the lighting part of it, and unfortunately I broke the driver behind the monitor while taking it apart.
    Now I don't know how to power both the lights on the display. I want to re-use this as a light to do some tracing work.
    I have take some pictures which are below this thread, can someone guide me though, on how to power both the lights on the LCD panel.
    Thanks.
    [​IMG]
    [​IMG] [​IMG]
     
  2. R!f@@

    AAC Fanatic!

    Apr 2, 2009
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    Welcome to AAC

    Show me the Inverter PCB
     
  3. ManuOfficial

    Thread Starter New Member

    Jan 7, 2016
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  4. R!f@@

    AAC Fanatic!

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    This is the Inverter + PSU.

    inveter.jpg

    Post a good picture from both sides. What you want can be done most of the time.
     
  5. ManuOfficial

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    Jan 7, 2016
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  6. R!f@@

    AAC Fanatic!

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    Look at the PDF.
    Show me the area in the circle closely
     
    • 1.1.pdf
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  7. R!f@@

    AAC Fanatic!

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    I can see a crack in the board.
    Check if a PCB track is cracked or not
     
  8. ManuOfficial

    Thread Starter New Member

    Jan 7, 2016
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    The crack on the board did not go all the way through, just the top layer peeled off. The crack appears to be going under the power chord socket, but does not re-appear beyond it. If you were talking about the crack on the other part of the board where there is a screw hole, it's the same story, the board does seem to bend a little near the screw hole, but the crack doesnot go all the way through. Besides, all the tracks appear to be on the back of the board, nothing is broken.
    https://drive.google.com/open?id=0BwMFRcia_rQsZ1EteWVYbWJGWFk
     
  9. R!f@@

    AAC Fanatic!

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    so where is the picture I asked for ?
     
  10. ManuOfficial

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    Jan 7, 2016
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  11. R!f@@

    AAC Fanatic!

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    3.png

    Look at the picture
    Connect a 1K 0.25W resistor from 5.1V ( pin 6 and 7) to ON/OFF (pin9)
    Mount the board . Remember to plug in the tube cables properly and just Plug in AC. It should turn on instantly

    Remember to screw the board as there will be lethal voltage which could do bodily harm
     
    Last edited: Jan 7, 2016
  12. ManuOfficial

    Thread Starter New Member

    Jan 7, 2016
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    [​IMG]
    Like that? Sorry I'm a noob. Should I connect one of the resistor to both the 6&7 pins or just one?
     
  13. R!f@@

    AAC Fanatic!

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    6 and 7 are the same.
    Picture is correct
     
  14. ManuOfficial

    Thread Starter New Member

    Jan 7, 2016
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    So if I connect the resistor from 6 to 9, it should work? or should I connect 6+7 to 9?
     
  15. R!f@@

    AAC Fanatic!

    Apr 2, 2009
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    You making this difficult.
    I said they are the same. 6 or 7. Does not matter you wanna go for 6 or 7.
    It works most of the time, if there is no problem with the PSU or inverter
     
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