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Mac mini (Mid 2010) Symptom Charts — Startup and Power 20
2010-08-03
6. Disconnect power button
connector from logic board and
short the two power button
connector pins on logic board.
Verify if the unit powers on.
Yes Replace Power Button
assembly
X03
No Go to step 7
7. Disconnect AirPort/Bluetooth
card, Hard Drive, Optical Drive
and LED/IR Sensor cables from
logic board. Connect AC cable
and press the power button to
verify if a startup error tone is
heard.
Yes Reconnect one by one each
device and retest to identify
the shorting one. When
found, replace aected device
cable rst, and retest.
X03
No Go to step 8
8. Disconnect the power supply
cable from logic board ,
connect AC cable and use
a multimeter to verify that
a 12 Volts voltage is present
between the two outer pins
of cable. See KBase article
http://support.apple.com/kb/
HT3250 for details on using a
digital multi-meter
Yes Power supply is present.
Replace logic board and
retest.
M01
No Replace cable between power
supply and logic board and
retest.
If issue persists after cable
was replaced, replace power
supply and retest.
X03
P01