MACBOOK A1466 PPBUS 8.2V NO MAGSAFE

[Instafixx]

For my reference: RSBB

PPBUS is at 8.2V. No Magsafe Light .
3v42 / smc_reset_l present.
U1950 all 0V except 3v42.
PM_SLP_S4_L also missing.

BAD SMC?

 

[2informaticos]

What about diode mode readings at SCL/SDA lines of battery bus?

Check power rails and signals of SMC (2 OF 2) from page 37.

 

[Instafixx]

SCL/SDA is .550 .

You want voltages or diode or both from Page 37

 

[2informaticos]

Voltage level is OK; only right side page.

 

[Instafixx]

All rails diode mode readings are ok.

 

[2informaticos]

I expected voltages...