LG 60pn6506 Plasma

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  • An-klamm
    Member
    • Feb 2023
    • 43
    • Deutschland

    #1

    LG 60pn6506 Plasma

    Hello!

    Have received a LG 60pn6506 60 inch from a work colleague.
    RJP30H2A on the X-Board were shorted.
    60R5_YSUS, EAX64789501 and EBR75455701 is written on the board.
    New board for about 130$ is too much for him. So if that's the only option, that's going on the scrap (after the PSU and Y board are sold).
    I checked the area around the RJP Mosfets and found that the diodes on the gate pin are also defective (for Example D564). Imprint is: UF and then 90° offset CD. In Diodetestmodes the good ones show ~0,2V

    A little further to the right on the board, two parts with the SOT23-5 housing are also cracked (IC404 and IC403) on the IC403 I could still read the label (is only cracked on the side) 5K was written on it. I assume its some kind of dcdc converter.

    Does someone have the schematics or a similar board?
    Attached Files

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  • R_J
    Badcaps Legend
    • Jun 2012
    • 9623
    • Canada

    #2
    Re: LG 60pn6506 Plasma

    The sot23-5 (5K) are likely Toshiba HN4B101J

    Comment

    • An-klamm
      Member
      • Feb 2023
      • 43
      • Deutschland

      #3
      Re: LG 60pn6506 Plasma

      Replaced the broken parts.
      Found 15V missing.
      Replayced the parts mentioned in this thread https://www.badcaps.net/forum/showthread.php?t=69738 (post 12)

      Seems like all voltages are present (if I have not overlooked anything) but TV does not start (even just patterntest via "TCON" does not start)
      "TCON" flashes 3x short 1x long

      Voltages measuared:
      printed vs. measuared
      PSU
      17V 17V (to mainboard)
      M5V 5,2V 5,2V
      VA 55V 55V
      VS 202V 202V

      ZSUS
      18V 17,8V
      17V 17,8V
      VS 202V 202V
      5V 5,2V
      VZB unknown 108,4V

      YSUS
      15V 17,8V
      VS 202V 202V
      5V 5,1V
      VSC unknown 150V

      Comment

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