A 1708 820-0840

[ipetro]

NO LOADING!
20V/0.000-0.040 not stable
PPBUS_G3H=13v
PPDCIN_G3H=20v
PP5V_S5=5v
PP3V3_G3H=3.4v
DEAD CPU ?

 

[2informaticos]

Do you get 3V3_S5?

Any pulse at 5V_S4?
Check triggering SMC_ONOFF_L.

 

[ipetro]

PP3V3_G3H= 80ohm
PP3V3_G3H=0.040 diod
I don't think this is normal! I removed 3215 and 7000 but the indicators did not change

 

[2informaticos]

Remove R6999 and check where the low reading remains.

 

[ipetro]

Remove R6999 ! without changes

 

[2informaticos]

???

Which side of R6999 do you get 0.040 to ground?

 

[ipetro]

after replacing U5000 PP3V3_G3H=0.331 in diode mode and in resistance mode PP3V3_G3H=2.922 kOhm. but it still won't turn on!

 

[2informaticos]

Do you get correct 3V3_G3H voltage now?
What about 3V3_S5/G?

 

[ipetro]

3V3_G3H =3,34v
3V3_S5=3.3v
3V3_S5G=3.3V

 

[2informaticos]

Monitor CPU core voltage 10-20s.

 

[ipetro]

I'm sorry, I was measuring the test board just now! This one still doesn't have a download!
3V3_G3H =3.34v
3V3_S5=3.3v
3V3_S5G=0V
20V/0.000-0.040 not stable

 

[ipetro]

PP5V_S4=0
PP5V_S5=5v
PM_RSMRST_L=0
PM_SLP_S5_L=0

 

[2informaticos]

So the board doesn't turn on.

Check SMC_RESET_L, PM_BATLOW_L, SMC_PM_G2_EN, PM_DSW_PWRGD and SMC_ADAPTER_EN.