LG -E410 Service Manual page 67

+1V2_WLAN_WCN
+1V2_MSM_A2_WCN
VREG_MSME_1.8V
+1V8_WLAN_TCXO
R9007
+1V3_MSM_A3_WCN
0
C9033
R9009
+3V_WLAN_WCN
0
Test point Description
Test point
TP1 +3V_WLAN_WCN
TP2 VREG_MSME_1.8V
TP3 VREG_MSME_1.8V
LGE Internal Use Only
WiFi : WCN 1314
C9028 C9027
4.7u
0.1u
C9026
10n
C9029
0.1u
C9036
10n
2.2u
C9041
2.2u
Net name Description
Power for BT/WiFi BB core and WiFi power Amp. (V Batt)
Power for BT power Amp. (1.8V)
Power for host interface (1.8V)
C9034
C9032
C9031 C9048
220n
100p 1n
0.1u
colse to pin77 colse to pin85
FB9000 240
C9038 C9039 C9040
C9037
22u
10n 100p 100p
FB9001
60
C9042
0.1u
- 67 - Copyright © 2013 LG Electronics. Inc. All right reserved.
4. TROUBLE SHOOTING
GND_A21
GND_D1
GND_D2
GND_D3
31
VDD_CORE1 GND_D4
46
VDD_CORE2 GND_A1
48
VDD_CORE3 GND_A22
5
VDD_CORE_AON1 GND_D5
36
VDD_CORE_AON2 GND_D6
38
VDD_CORE_AON3 GND_D7
GND_D8
8
VDD_IO
GND_A2
2
VDD_FEM GND_A23
U9001
GND_A3
4
VDD_SDIO
GND_A4
85
VDD_RFA10 GND_D9
77
VDD_RFA11 GND_A5
GND_A6
78
VDD_PA GND_A7
GND_A8
51
VDD_TCXO GND_A9
35
VDD_RFA1 GND_A10
74
VDD_RFA2 GND_A11
66
VDD_RFA3 GND_A12
81
VDD_RFA4
67
VDD_RFA5 GND_A13
54
VDD_RFA6 GND_A14
76
VDD_RFA7 GND_A15
62
VDD_RFA8
49
VDD_RFA9 GND_A16
GND_A17
GND_A18
GND_A19
GND_A20
C9043
100p
colse to pin78
Only for training and service purposes
79
3
7
1
10
30
58
24
32
37
47
70
64
86
52
34
60
72
73
61
44
65
83
50
59
68
69
57
55
42
40
43