820-3536 no PPBUS_g3h

[iClub]

oo friend, I have this mac that is in contact with liquid, where the SMC was short I replaced it with a one removed from the donor plate, the tests are missing PPBUS_G3h and PP3V42_g3h. I tested 17/18 27/28 of the u7100 is ok.

 

[2informaticos]

Do you get voltage at F7005?
If not, try fake charger, or lab PSU.
If works, check D7010 and Q7180.

 

[iClub]

F7005 20.4V;

mac did not connect with fake magSafe.

No power, Green/orange light . I changed the SMC, because it was short, I used a 3476 board

Voltage:
PPbus_g3h 12.6V; PP3V42 3.42V; PPVRTC 3.34V; PM_BATLOW_L 3.34v; ALL_SYS 0V; PP3V3_SUS 0v; SMC_RESET_L 3.34v; PM_BATLOW_L 3.34V; Vcore 0v; PP5V_S5 5.03V.

- U6100 All pins with 0V.
- Does not accept SMC deviation.
- Reverse diode mode SMBUS_SMC_5_G3_SDA, SMBUS_SMC_5_G3_SCL respectively 0.557 and 0.560.
without USB activity

 

[2informaticos]

Post 3V3_S5/SUS, S5_PWRGD, PM_DSW_PWRGD, PCH_DSWVRMEN, SMC_ONOFF_L, PM_RSMRST_L, PM_PWRBTN_L.

 

[iClub]

3V3_S5/SUS = 3.34v / 0V
S5_PWRGD = 3.31V
PM_DSW_PWRGD = 3.41V
PCH_DSWVRMEN = 3.07V
SMC_ONOFF_L = 3.41V
PM_RSMRST_L = 0V
PM_PWRBTN_L = 3.41V

 

[2informaticos]

So missing PM_SLP_SUS_L.
Check all PCH's RTC signals.

 

[iClub]

PPVRTC_G3H 3.34v
PPVOUT_S0_PCH_DCPRTC 1.36V
PCH_CLK32K_RTCX1 0.45V
RTC_RESET_L 3.33v
PCH_SRTCRST_L 3.33v
PM_SLP_SUS_L 3.34v

 

[2informaticos]

PCH_INTRUDER_L, PCH_INTVRMEN, are not them connected to PCH's RTC block???

"PM_SLP_SUS_L 3.34v"
Then 3V3_SUS MUST be present too.
Check it on diode mode and post U8020 voltages.

 

[Narek]

@2informaticos , I’m wondering if SMC from 820-3476 will be compatible with 820-3536?

 

[2informaticos]

Yes, it is...