3. TROUBLE SHOOTING
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3.20 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
WLC_5V_OUT
VBUS_USB_IN_PM
U15001
EN2
AC1_2
OUT4
BOOT1
/CHG
COM1
CLMP1
FOD
PGND1
AC2_1
RECT2
AC2_2
OUT3
PGND2
ILIM
AD
CLMP2
TS_CTRL
OUT1
RECT1
PGND3
EN1/TERM
/AD_EN
AC1_1
BOOT2
PGND4
COM2
OUT2
10u
C15001
10n
C15020
10n
C15010
C15022
33n
33n
C15004
C15013
68n
25V
0.1u
C15017
C15002
10u
DNI
R15012
C15011
68n
10K
R15014
C15000
0.1u
ANT15003
MBV62562001
FEED
DNI
R15017
R15019
13
0.01
R1501
8
20
0
R15016
180
R15013
0
C15016
47n
C15019
10u
C15018
10u
C15021
0.47u
C15009
0.47u
R15011
12K
C15015
330p
C15014
2.2n
ANT15002
MBV62562001
FEED
C15052
1u
WLC_FULL_CHG
Max 1.2A
WLC Matching Point
Rev11_BOM updated
Rev11_BOM updated
Rev11_BOM updated
Rev11_BOM updated
Rev11_BOM updated
Rev11_BOM updated
Rev11_BOM updated
Rev10 (0717)
Rev10 (0717)
Rev10 (0717)
TP1
TP4
TP2