Sony xbr65x750d 4 red flashes

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  • Plurxtc1
    Senior Member
    • Oct 2014
    • 136
    • USA
    #1

    Sony xbr65x750d 4 red flashes

    I have a Sony XBR65X750D does anyone have an idea what the 4 flashes mean or a service manual? The TV LED strips are good. I had the panel open to check the strips with a tester. The TV comes up I can see the SONY Logo for 2 seconds then it shuts down.
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    • bstewara
      Member
      • Jun 2019
      • 40
      • USA
      #2
      Re: Sony xbr65x750d 4 red flashes

      I believe the 4 blink error is backlight issues.
      Unfortunately pretty common with the kdl 65 and 75 series.

        Comment

        • budm
          Badcaps Legend
          • Feb 2010
          • 40746
          • USA
          #3
          Re: Sony xbr65x750d 4 red flashes

          https://www.shopjimmy.com/sony-1-474...pply-board.htm

          1) All connectors in place and TV is off, put the meter black probe on the chassis, red probe on the +OUT1 of the LED connector then turn on the TV while watching the meter to see how high the Voltage jumps up to then turn off the TV.
          2) Repeat the same test on -OUT1 of the LED connector.
          3) What Voltage does it show on the LED tester when you test the LED string by removing the LED connector from the power supply board and then put the LED tester probes on the +OUT1 and -OUT1 on the LED connector that goes to the panel?
          Last edited by budm; 01-29-2020, 06:28 PM.
          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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