Schematic for LA-M788P

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  • munichrepair
    Member
    • Nov 2014
    • 11
    • Germany

    #1

    Schematic for LA-M788P

    Hello,

    does someone have the Schematic for LA-M788P?

    thx in advance
  • Naeem4rush
    Member
    • Dec 2021
    • 38
    • Pakistan

    #2
    if you find let me know i need as well .

    Comment

    • ferah831208
      Senior Member
      • Aug 2019
      • 60
      • Cuba

      #3
      Anyone found it?? I have a problem with this model, 3v line shorted, chip was damaged, I replaced sy8371b and kb9542q, flashed KBC and laptop works but it turns off backlight randomly and enters suspension, I have keyboard unplugged. I cannot locate lid switch circuit or any circuit without schematics or KBC pinout, I suspect maybe this controller I ordered in AliExpress is faulty but it costed around 20 USD πŸ˜”. I need to be sure

      Comment

      • Ardentis
        New Member
        • Jan 2023
        • 4
        • Ukraine

        #4
        Originally posted by ferah831208
        Anyone found it?? I have a problem with this model, 3v line shorted, chip was damaged, I replaced sy8371b and kb9542q, flashed KBC and laptop works but it turns off backlight randomly and enters suspension, I have keyboard unplugged. I cannot locate lid switch circuit or any circuit without schematics or KBC pinout, I suspect maybe this controller I ordered in AliExpress is faulty but it costed around 20 USD πŸ˜”. I need to be sure
        Hi, ferah831208.
        Check FU6 if it's not blown.
        Attached Files

        Comment

        • ferah831208
          Senior Member
          • Aug 2019
          • 60
          • Cuba

          #5
          Originally posted by Ardentis

          Hi, ferah831208.
          Check FU6 if it's not blown.
          I was going to update what I found, now I see your post and evidently there is something weird about that fuse or little inductance, I traced line from little PCB where magnetic lid switch component is located, and it lead me to this component that had weird resistance readings, I changed it for a 0 ohm resistor because it feeded the 3v line for the lid switch, also the lid switch was behaving erratically so I also replaced it, laptop is working perfect now, it's been a hed ache fixing this without any similar schematics, thanks to all in this great community that helped me identifying some components.

          Comment

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