LG -E400f Service Manual page 72

+1V2_MSM_A2_WCN R1 0
R2 0
+1V2_WLAN_WCN
VREG_MSME_1.8V
+1V3_MSM_A3_WCN
+1V8_WLAN_TCXO
+3V_WLAN_WCN
LGE Internal Use Only
WiFi : WCN 1314
C930
4.7u
R3 0
C935 C936
2.2u
220n
FB900
C938
10n
C939 C940
22u 10n
R4 0
C943
2.2u
[Figure] Schematic of WiFi/BT module
C928
10n
31
VDD_CORE1
46
VDD_CORE2
C929
48
VDD_CORE3
0.1u
5
VDD_CORE_AON1
36
VDD_CORE_AON2
38
VDD_CORE_AON3
C931
8
VDD_IO
0.1u
2
VDD_FEM
EAN62416201
C933
C934 4
VDD_SDIO
100p
100n
85
VDD_RFA10
77
VDD_RFA11
78
VDD_PA
51
VDD_TCXO
35
VDD_RFA1
74
VDD_RFA2
66
VDD_RFA3
81
VDD_RFA4
67
VDD_RFA5
54
VDD_RFA6
76
VDD_RFA7
62
VDD_RFA8
49
VDD_RFA9
C941 C942
100p 100p
FB1
60
C944 C945
0.1u 100p
colse to pin78
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4. TROUBLE SHOOTING
79
GND_A21
3
GND_D1
7
GND_D2
1
GND_D3
10
GND_D4
30
GND_A1
58
GND_A22
24
GND_D5
32
GND_D6
37
GND_D7
47
GND_D8
70
GND_A2
64
GND_A23
U901
86
GND_A3
52
GND_A4
34
GND_D9
60
GND_A5
72
GND_A6
73
GND_A7
61
GND_A8
44
GND_A9
65
GND_A10
83
GND_A11
50
GND_A12
59
GND_A13
68
GND_A14
69
GND_A15
57
GND_A16
55
GND_A17
42
GND_A18
40
GND_A19
43
GND_A20
TP1
TP2
TP3
Only for training and service purposes