820-00239 No power, no activity on USB-C

[iClub]

Good afternoon, this mac shows no signs of oxidation.
Ja put another Bios, but not solved.



L7030 = 461
L8410 = 931
L7660 = 408
L7600 = 447
L3500 = 181
ALL_SYS_PWRGD 3,26V
PPDCIN_G3H_CHGR = 20 V
PPVBAT_G3H_REG = 13 V
PPBUS_G3H = 13 V
PP5V_S4 = 5,1 V
PP3V3_S5 = 3,3 PP3V_S4 3,3
P3V3G3h = 3,4 V
3V0_G3H = 3 V
PM_PWRBTN_L 3,3V
PM_RSMRST_L 3,3V
PM_BATLOW_L 3,3V
PM_DSW_PWRGD 3,3V
PCH_INTRUDER_L 2,8V
PP3V3_SUS 3,3V

There is drop pulse at PM_PWRBTN_L when you press SMC_ONOFF_L

 

[2informaticos]

"ALL_SYS_PWRGD 3,26V"
So you have voltage on many big coils; can you list them?

 

[iClub]

L9400 0V, no pulse
LB700 0V, no pulse
L7960 0,96V
L8000 1.001V
L7900 1.21V
L8050 1,02V
L7270 1,14V
L7220 0V, no pulse
L7210 0V, no pulse
L7410 0V, no pulse
L7420/30 0V, no pulse
L7700 1.06V
L7600 5.14V
L7660 3.42V
L7030 13.2V
L3500 5.24V

 

[2informaticos]

No oxidation, no other history?

Check U7100 basic voltages; pins 41, 42, 48.