3. TROUBLE SHOOTING
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Only for training and service purposes
LGE Internal Use Only
LGE Internal Use Only
4.23 Wireless Charging Troubleshooting
When the WLC does not work, the problem comes from WLC antenna, SUB Board or WLC chip itself.
Wireless charging system is not controlled by the main core.
TP1 : Input power from secondary coil : AC 19V(at 100kHz~200kHz)
TP2 : Output power from WLC chip : within 4.8V ~ 5V
TP3 : Antenna itself has about 5.9uH self-inductance and 600mohm self-resistance (w/ RLC Meter)
TP4 : C-clip is cracked or separated from board
TP1
TP2
LGE Internal Use Only
4.23 Wireless Charging Troubleshooting
When the WLC does not work, the problem comes from WLC antenna, SUB Board or WLC chip itself.
Wireless charging system is not controlled by the main core.
TP1 : Input power from secondary coil : AC 19V(at 100kHz~200kHz)
TP2 : Output power from WLC chip : within 4.8V ~ 5V
TP3 : Antenna itself has about 5.9uH self-inductance and 600mohm self-resistance (w/ RLC Meter)
TP4 : C-clip is cracked or separated from board
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