Hanns-G HU196D no voltage on the signal board connector

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  • javalinex
    New Member
    • Apr 2014
    • 5
    • Spain

    #1

    Hanns-G HU196D no voltage on the signal board connector

    Hello, first of all sorry for my bad English :/

    I have the same problem as this user wrote in 2011: https://www.badcaps.net/forum/showthread.php?t=16978

    I will try to describe my problem with images.

    Yesterday, first test. the green led light up




    Today, I tested again and... totally dead






    What happens here? I'm going crazy
    Thank you for your help, Greetings
  • budm
    Badcaps Legend
    • Feb 2010
    • 40746
    • USA

    #2
    Re: Hanns-G HU196D no voltage on the signal board connector

    See those two red cylinder fuses? Are they OK?
    12V/5V are generated by the same transformer so I would expect the 5V not to be stable if the 12V varies that much. You can also test the DCV on the connector without having the logic/main board connected since the power supply is an always on power supply.
    Never stop learning
    Basic LCD TV and Monitor troubleshooting guides.
    http://www.badcaps.net/forum/showthr...956#post305956

    Voltage Regulator (LDO) testing:
    http://www.badcaps.net/forum/showthr...999#post300999

    Inverter testing using old CFL:
    http://www.badcaps.net/forum/showthr...er+testing+cfl

    Tear down pictures : Hit the ">" Show Albums and stories" on the left side
    http://s807.photobucket.com/user/budm/library/

    TV Factory reset codes listing:
    http://www.badcaps.net/forum/showthread.php?t=24809

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