Been looking at an A1932 board and I am a bit stuck.
No short on PPBUS_G3H
one usb c port shows 0.14A 5.2V
other 0.15A 5.2V
pulled the ISL off, no shorts found on the pads underneath
placed a new ISL, exact same issue so I guess the old one was fine
PP20V_USBC_XA/B_VBUS reads 5.13V
PP1V8_SLPS2R reads 0.06V
PPDCIN_G3H reads
0.02V for 0.14A port
0.00V for 0.15A port
Could this be as simple as a charging flex that is defective? 140/150mA gets past the meter so there is a connection, is the fault all the way upstream? No shorts found. CD3215 fault feels unlikely since the behaviour is so identical. Trying to learn this stuff but don't know where to go from here. Thanks
No short on PPBUS_G3H
one usb c port shows 0.14A 5.2V
other 0.15A 5.2V
pulled the ISL off, no shorts found on the pads underneath
placed a new ISL, exact same issue so I guess the old one was fine
PP20V_USBC_XA/B_VBUS reads 5.13V
PP1V8_SLPS2R reads 0.06V
PPDCIN_G3H reads
0.02V for 0.14A port
0.00V for 0.15A port
Could this be as simple as a charging flex that is defective? 140/150mA gets past the meter so there is a connection, is the fault all the way upstream? No shorts found. CD3215 fault feels unlikely since the behaviour is so identical. Trying to learn this stuff but don't know where to go from here. Thanks
