LG -P715 Service Manual page 82

Module part
BT/WI-FI FRONT-END
C9055
100p
for contacting to GND
VREG_MSME_1.8V
NFC_WCN_HWI2C_SDA
NFC_WCN_HWI2C_SCL
L9002
FM_ANT
68n
BT_PCM_OUT
L9004
C9005
82n
47p
BT_UART_TX
BT_UART_RX
BT_UART_RTS
BT_UART_CTS
LGE Internal Use Only
C9025
100p
L9011
L9012
1.8n
DNI
WLAN_SW_[0]
WLAN_SW_[1]
WLAN_SW_[2]
WLAN_PWR_DET_IN
ANTENNA SWITCH MODULE LOGIC
WiFi Rx-ANT
WiFi Tx-ANT
BT-ANT
C9001
22p
6
GND1
33
BT_RST_N SYS_RST_N
28
I2C_SDA
29
I2C_SCL
43
FM_HRX_IN
49
L9003 82n
FM_PRXTX_IO
46 U9001
FM_I2S_SD
56
BT_PCM_SYNC FM_I2S_WS
51
BT_PCM_CLK FM_I2S_SCK
58
BT_PCM_OUT BT_PCM_IN
42
BT_PCM_CLK BT_PCM_CLK
53
SLEEP_CLK
SLEEP_CLK
36
BT_UART_RXD
47
BT_UART_TXD
40
BT_UART_CTS
57
BT_UART_RTS
R9006 1M
FL9003
3
WLAN_RX
1
WLAN_TX
5
4
BT_TRX
TR_SW0
2
TR_SW1
6
12
GND1
TR_SW2
8
GND2
9
7
GND3
ANT
10
11
GND4
CPL
13
PGND
C9031 C9032 C9033
2400MHz,2500MHz
DNI DNI DNI
SW0 SW1
HIGH LOW
LOW HIGH
LOW LOW
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
C9016 C9017
C9012 C9013 C9014 C9015
10n 10p 10n 10p
4.7u 4.7u
- 82 - Copyright © 2013 LG Electronics. Inc. All right reserved.
4. TROUBLE SHOOTING
L9010
3.9n
C9026
C9027
DNI
DNI
L9013
2.4n
C9028 C9029
DNI DNI
C9034
22p
C9057
0.5p
SW2
LOW
LOW
HIGH
R9004
0
C9018 C9019 C9020 C9011 C9021
10n 10n 0.1u 1u 10n
Only for training and service purposes
WLAN_RF_RX
WLAN_RF_TX
BT_RF_QCT
VREG_MSME_1.8V
+3V_WLAN_WCN