LG -E435 Service Manual page 65

VREG_MSME_1.8V
BT_RST_N
I2C_COMMON_SDA_WCN
I2C_COMMON_SCL_WCN
L9003 68n
L9004
82n
FM_ANT
BT_PCM_OUT
BT_PCM_IN
C9008 L9006
BT_PCM_SYNC
82n
47p
BT_PCM_CLK
BT_PCM_OUT
BT_PCM_CLK
SLEEP_CLK
BT_UART_TX
BT_UART_RX
BT_UART_RTS
BT_UART_CTS
+1V2_WLAN_WCN
+1V2_MSM_A2_WCN
VREG_MSME_1.8V
+1V8_WLAN_TCXO
R9007
+1V3_MSM_A3_WCN
0
+3V_WLAN_WCN
LGE Internal Use Only
C9002
22p
R9001 R9002
2.2K
2.2K
6
GND1
33
SYS_RST_N
28
I2C_SDA
29
I2C_SCL
43
FM_HRX_IN
49
FM_PRXTX_IO
R9003 DNI 46 U9000
FM_I2S_SD
56
FM_I2S_WS
51
FM_I2S_SCK
58
BT_PCM_IN
42
BT_PCM_CLK
53
SLEEP_CLK
36
BT_UART_RXD
47
BT_UART_TXD
40
BT_UART_CTS
57
BT_UART_RTS
R9004
1M
WiFi : WCN 1314
C9027
C9028
4.7u
0.1u
C9026
10n
C9029
0.1u
C9034
220n
FB9000
C9036
470n
C9033
2.2u
C9041
2.2u
[Figure] Schematic of WiFi/BT module
BT/FM Module : WCN2243
31
VDD_IO
24
VDD_XO_BIAS
14
VREG_DIG
4
VREG_ANA
10
VDD_LDO_IN
54
VDD_FM_1P3_1
37
VDD_FM_1P3_2
50
VDD_FM_1P3_3
55
VDD_FM_1P3_4
21
VDD_DIG_1P3
32
VDD_FM_DAC
19
VDD_BT_PA
13
VDD_BT_1P3_1
12
VDD_BT_1P3_2
15
VDD_BT_1P3_3
5
VDD_BT_1P3_4
C9015 C9016 C9017 C9018 C9019
4.7u
10n 10n 10n 10p
31
46
48
5
36
38
8
2
4
85
77
C9032 C9031
78
0.1u 100p
colse to pin85
colse to pin77
51
35
240
74
66
81
67
54
76
62
49
C9038 C9039 C9040
C9037
22u
10n 100p 100p
FB9001
60
C9042 C9043
0.1u 100p
- 65 - Copyright © 2013 LG Electronics. Inc. All right reserved.
4. TROUBLE SHOOTING
VREG_MSME_1.8V
+3V_WLAN_WCN
C9020 C9021 C9022 C9023 C9024 C9025
4.7u 10n
10n 1u
0.1u 10p
79
GND_A21
3
GND_D1
7
GND_D2
1
GND_D3
10
VDD_CORE1 GND_D4
30
GND_A1
VDD_CORE2
58
GND_A22
VDD_CORE3
24
VDD_CORE_AON1 GND_D5
32
VDD_CORE_AON2 GND_D6
37
GND_D7
VDD_CORE_AON3
47
GND_D8
VDD_IO
70
GND_A2
64
GND_A23
VDD_FEM
U9001
86
GND_A3
VDD_SDIO
52
GND_A4
34
GND_D9
VDD_RFA10
60
GND_A5
VDD_RFA11
72
GND_A6
73
GND_A7
VDD_PA
61
GND_A8
44
GND_A9
VDD_TCXO
65
VDD_RFA1 GND_A10
83
VDD_RFA2 GND_A11
50
GND_A12
VDD_RFA3
VDD_RFA4
59
GND_A13
VDD_RFA5
68
VDD_RFA6 GND_A14
69
GND_A15
VDD_RFA7
VDD_RFA8
57
GND_A16
VDD_RFA9
55
GND_A17
42
GND_A18
40
GND_A19
43
GND_A20
colse to pin78
Only for training and service purposes