UE46D6200 failing mosfet Q9110

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  • Wheel.ghost
    New Member
    • Jul 2017
    • 4
    • Netherlands
    #1

    UE46D6200 failing mosfet Q9110

    Hi there!
    I got this TV initially not turning on and flashing standby LED. Mosfet q9101 was found defective and have been replaced. After that TV normally switched on and was fully functional for about two hours, then switched off with the same flashing LED. The power supply board BN44-00458A was checked again, but no damaged elements were found. TV switched on again normally, worked again for two hours. The temperature of q9101 was not more than 40C all the time. Then it switched off again, the measured temperature of q9101 was 86C, and capacitor C9110 was 74C. Q9101 was damaged as well as Q9102. The type of q9102 can't be read due to the damaged surface, the schematics for this MPS is not available....
    Any suggestions?
    Thanks in advance!
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    Last edited by Wheel.ghost; 10-17-2018, 12:33 PM.
    Tags: None
    • budm
      Badcaps Legend
      • Feb 2010
      • 40746
      • USA
      #2
      Re: UE46D6200 failing mosfet Q9110

      Can we see good clear straight shot pictures of the whole top and bottom side of the board?
      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

        Comment

        • Wheel.ghost
          New Member
          • Jul 2017
          • 4
          • Netherlands
          #3
          Re: UE46D6200 failing mosfet Q9110

          Please, find the pictures of MPS from both sides. Not sure that quality is enough, can take better one in the evening.
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