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820-00165 Liquid damaged

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  • 820-00165 Liquid damaged

    Hi, got an 820-00165 with some small corrosion near SMC. I replaced Q5158, R5625, C5625, C5595 and there was a burned trace under pin 1 of R5100 which i wired to pin 2 of R5193. After this the fan spins up, stops, then turns on again and keeps running. The machine doesnt boot though, display stays black, no backlight. I have CPU Vcore and clock cycle. Any ideas?
    Last edited by arnonabuurs; 01-26-2019, 01:01 AM.

  • #2
    In this case should be good to reball SMC.
    Is possible to have corroded, or broken balls, or traces underneath.
    Did you try to start in SMC bypass mode?
    Also inspect U6100 area, check all SPI Bus Series Termination resistors and clean J6100, if needed.
    Be sure to have good solders at U1950; does it have 3v at pins 7 & 3?

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