Tuesday, 5 May 2015

Apple Macbook MBP13 SMC_PM_G2_EN, A1466, water damage, SMC problem?

I/O board is working, voltages goes to the mainboard.

By looking at the power states, SMC_PM_G2_EN must be enabled even when the laptop is turned off (S5 state), but this signal is missing.
What i don't know if this signal is enabled from another pin of the smc, or just turn it on when power is given to the chip.

I think i will only know that when i replace the smc chip..

16 volts12 volts ok even replace ISL charging IC but still same prob ie no
3.3v 
5 votls stanby voltages missing.
1no SMC_PM_G2_EN ie .4voltsv. 2no SMC_RESET_L ie .4 volts. 3no SMC_ADAPTER_EN ie .4volts

BUT after Reflow 
or appling Heat to SMC IC problem resolve. 1no SMC_PM_G2_EN ie 3.4voltsv. 2no SMC_RESET_L ie 3.4 volts. 3no SMC_ADAPTER_EN ie 3.4volts.

and 
ALL my voltages came up.
heheh Enjoy... 

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