hgoncalves
Active member
Hi.
I have an A2141 820-01700, that seams to try to boot but then powers off. It puls 20V from ampmeter, reaches 0.400A, but then drops to 0.100A.
DFU goes until the end, and a lock appear on the host mac, but nothing appends on the dead mac.
No big coils have voltages, but none seams to be shorted on diode readings.
PP3V3_S5 = 3.3V
PP1V8_S5 = 1.8V
PMU_CLK32K_PCH = 0.869V
PMU_ACTIVE_READY = 1.8V
PMU_ONOF_L = 3.3V
PP1V8_SLPS2R = 1.8V
PP1V1_SLPS2R = 1.1V
PP0V8_SLPS2R = 0.8V
PP1V8_AWAKE = 1.8V
PP3V3_AWAKE = 3.3V
PPVDDCPUSRAM_AWAKE = 0.8V
PP1V2_AWAKE = 1.2V
Can you help?
I have an A2141 820-01700, that seams to try to boot but then powers off. It puls 20V from ampmeter, reaches 0.400A, but then drops to 0.100A.
DFU goes until the end, and a lock appear on the host mac, but nothing appends on the dead mac.
No big coils have voltages, but none seams to be shorted on diode readings.
PP3V3_S5 = 3.3V
PP1V8_S5 = 1.8V
PMU_CLK32K_PCH = 0.869V
PMU_ACTIVE_READY = 1.8V
PMU_ONOF_L = 3.3V
PP1V8_SLPS2R = 1.8V
PP1V1_SLPS2R = 1.1V
PP0V8_SLPS2R = 0.8V
PP1V8_AWAKE = 1.8V
PP3V3_AWAKE = 3.3V
PPVDDCPUSRAM_AWAKE = 0.8V
PP1V2_AWAKE = 1.2V
Can you help?