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[SOLVED]820-3437 fan control fault

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  • [SOLVED]820-3437 fan control fault

    Liquid damaged board, all other faults fixed but this one with the fan.
    ASD reports unable to stabilize between min/max speed.
    Fan is not speeding up on fan test.

    Replaced fan twice.

    3V3 getting through R6010 = 0Ohms
    Fan tach R6065 = 47k
    R6061 = 100k
    R6060 = 47k

    Replaced Q6060 to be sure.

    Is SMC_FAN_0_CTL a PWM control?
    What to look for now?

    Cheers

  • #2
    That pretty much only leaves the SMC. Diode mode on FAN_0_CTL?

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    • #3
      0.473V diode mode on FAN_0_CTL
      I'll just bung on a new SMC on and see what happens
      Last edited by G.Beard; 09-29-2016, 05:27 PM.

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      • #4
        New SMC did the trick.

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