Motorola Moto Z Play Troubleshooting Manual page 36

White SOL LED
In the event of SOL LED issue:
• Check voltage at LED Anode (pin 2) and Cathode (pin 1) of D5401
• LED Vf @If,10mA = V_anode - V_cathode = 2.7V(typ.), 3.2V(max)
• If LED is working, Vf should be in the available range, about 2.8V.
FTM power, w/o battery
FTM power, w/ battery(3.8V)
MOTOROLA CONFIDENTIAL
LED On
V_Anode: 3.15V~3.2V
V_Cathode: 0.3V
Vf = 2.8V
V_Anode: VBatt+ 0.1V, 3.9V
V_Cathode: 1.05V
Vf = 2.85V
LED Off
V_Anode: 3.15V~3.2V
V_Cathode: 0.95V
Vf = 2.2V
V_Anode: VBatt+ 0.1V, 3.9V
V_Cathode: 1.66V
Vf = 1.95V
BASEBAND TROUBLESHOOTING GUIDE
Moto Z Play (Droid)/Moto Z Play