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identifying sot23 on backlight cirucuit of 17" razer rz09-0423

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  • kjchatman
    Badcaps Veteran
    • Dec 2012
    • 240
    • united states

    #1

    identifying sot23 on backlight cirucuit of 17" razer rz09-0423

    this laptop was damaged by a roof leak at the repair shop that it was at while waiting for a replacement cpu fan. It was given to me to try to save the motherboard which wouldn't power up anymore. The only issue now is that an sot23 marked R1 is missing one of it's three legs. I cannot find schematics for this model but I found a mosfet that has the same label but i'm not sure if it's an actual match. CJ3401 is the one that I found but I have no clue about the true identity of the damaged one.
  • mon2
    Badcaps Legend
    • Dec 2019
    • 16029
    • Canada

    #2
    Post a pic of the SOT23 in question. Highlight the top markings with IPA and then take a good pic.

    Comment

    • kjchatman
      Badcaps Veteran
      • Dec 2012
      • 240
      • united states

      #3
      can't get the camera to focus on tiny objects but it's an sot23 with R1 as the top marking. CJ3401 is an sot23 also with R1 as the top marking but not sure if it's a match

      Comment

      • mon2
        Badcaps Legend
        • Dec 2019
        • 16029
        • Canada

        #4
        Maybe you can still probe the broken leg tip on the SOT-23 body? Consider to measure it in resistance mode and compare it to the CJ3401 measurements to confirm. For this, you must source the CJ3401.

        Comment

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