820-3482 not turning on/ 1 Blink Led

iClub

Member
Good afternoon, I don't know much about iMac.
Voltage:
SMC_PM_G2_EN oscillating.
PP12V_S0 0V
PP3V3_S0 0V.
PP3V3_S5 oscillating
 

iClub

Member
Voltage and diode mode:
L7610 oscillating /0.130V
L7650 oscillating /0.165V
L7760 0v /.106V
L7110 0v /.021V
L7130 0v /.022V
L7130 0v /.022V
L8100 0v /.169V
 
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