Macbook Pro Retina A1398 late 2013 (820-3662-A)

Discussion in 'MacBook Pro' started by macsoluter, Apr 14, 2019.

  1. macsoluter macrumors newbie

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    #1
    Hi everyone,

    I have the following problem, see photo how i test the motherboard.
    Adapter start with green light and goes to orange and the fans are running directly and goes to high speed.
    I have measure a lot of points but , i don't know where the problem is. No chime and no display. Backlight is well on the screen .
    I think it is an heating problem but which components and where to look?
    I bought this macbook pro and it was with a cracked screen. I replaced the lcd but no screen only backlight.

    Can somebody help me or give some hints to look further
     

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  2. Audit13 macrumors 601

    Audit13

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  3. macsoluter thread starter macrumors newbie

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    #3
    Yes,

    The fans runs and the screen displays verticale color lines
    Cracked screen. Also no chime
     
  4. Audit13 macrumors 601

    Audit13

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    #4
    Have you tried an external monitor?

    If it didn't chime before buying, is it possible the speakers or speaker connection on the logic board is defective?

    Was the MacBook ever exposed to liquid? Fans running at full speed may be an indication of liquid exposure. I've had this happen with MacBook Airs I purchased for parts.

    Is it possible to perform an SMC reset?
     
  5. macsoluter thread starter macrumors newbie

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    #5
    When i buyed , also no external screen.
    Some history ; it was delivered without harddisk and power supply
    In the mean time , i bought a harddisk, an adapter and now i'am waiting for a new keyboard, trackpad and battery.
    At this moment i'am not able todo a smc reset of other choses.
    Is it normal that the power adapter starts with green light and goes to orange whitout a connection of a battery ?
    --- Post Merged, Apr 14, 2019 ---
    The motherboard is very clean, like new
     
  6. Audit13 macrumors 601

    Audit13

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    #6
    You bought the MacBook as a whole computer with a bad keyboard, screen trackpad, and battery?
     
  7. macsoluter thread starter macrumors newbie

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    #7
    The battery was difficult to leave out and also the keyboard and i would be certain . The lcd of the screen i replaced with succes , not broken but still it does't work. I want to fix this pc and hold it for me
     
  8. Audit13 macrumors 601

    Audit13

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    #8
    Without seeing the boot screen, it's possible that there is an efi password too.

    Yes, connecting the charger without a battery could have the magsafe LED change from green when first connected to orange when it does not detect a battery.

    Does the MacBook turn on by itself after connecting the charger?
     
  9. macsoluter thread starter macrumors newbie

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    #9
    --- Post Merged, Apr 14, 2019 ---
    Yes
     
  10. Audit13 macrumors 601

    Audit13

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    #10
    That's good.

    Can you connect an external monitor, usb keyboard, and usb mouse to test?
     
  11. _Kiki_ macrumors 6502a

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    #11
    Can you see the faint picture on the screen using the torch ?
     
  12. macsoluter thread starter macrumors newbie

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    #12
    I try this evening to connect an USB keyboard and mouse after work
     
  13. macsoluter thread starter macrumors newbie

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    #13
    I tried but the USB keyboard is not a mac keyboard and with an usb mouse.
    I think it is better to wait on the new spare parts and than we can go further.
     
  14. Audit13 macrumors 601

    Audit13

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    #14
    You can't use a usb keyboard (Mac or Windows) to reset the smc or nvram; however, you can use it to select a boot drive using an external monitor.
     
  15. macsoluter thread starter macrumors newbie

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    #15
    The new keyboard and trackpad are installed, but only the backlight goes on and black screen
    Test with HDMI to tv screen negatief, test with external screen by VGA adapter negatief ??
    Start in diagnose mode negatief
    Start with options key negatief
    What van i do more ?
     
  16. Audit13 macrumors 601

    Audit13

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    #16
    The keyboard backlight or display backlight comes on?

    You are sure the display is working properly?

    Did you try connecting a display port cable to the logic board?

    Are you able to reset the SMC and NVRAM?
     
  17. macsoluter thread starter macrumors newbie

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  18. Audit13 macrumors 601

    Audit13

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    #18
    Did you try my other suggestions?

    You are sure the speakers and keyboard are functional and correctly connected?
     
  19. macsoluter thread starter macrumors newbie

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    #19
    i don't know ? but no light on the keyboard, only the power button on the keyboard works , because i can power on and off
     
  20. Audit13 macrumors 601

    Audit13

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    #20
    Sounds to me like you'll have to have the board examine by a repair technician that is able to perform board-level repairs if you are sure that everything you attached is working.
     

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19 April 14, 2019