LG D405 Service Manual page 115

TP3
L5100 100n
FM_ANT
VREG_L24_1V3
C5224
DNI
LGE Internal Use Only
C5104 82p
XO_G_TCXO
TP3
L5101 68n
FM_SSBI
FM_DATA
BT_CTL
BT_SSBI
BT_DATA
VREG_L6_1V8
VREG_L10_1V8
TP2
10V
10V
10V
10V
FB5100
240
C5114
100p
VREG_L16_3V3
30
TCXO_IN WL_PDET_IN
50
FM_HS_RX WL_BB_IP
WL_BB_IN
41
FM_SSBI WL_BB_QN
46
FM_DATA WL_BB_QP
U5100
18
BT_CTL
WCN-3620-0-61WLNSP
33
BT_SSBI WL_BT_RFIO
28
BT_DATA
WL_CMD_SET
8
GND WL_CMD_CLK
WL_CMD_DATA2
WL_CMD_DATA1
WL_CMD_DATA0
6.3V 6.3V
C5100 C5101
470n 470n
C5102
4.7u
22
24
29
6.3V C5105
22n
56
57
52
51
3
13
16
7
23
60
37
43
9
58
36
C5112 C5113 11
10u 100p 4
C5116
C5115
100p
10u
R5104
0
If 2.4GHz WLAN spurs are observed around 2.6 to 2.7 GHz,
replace R5102 with upto 20 nH inductor.
R5105 0
- 115 - Copyright © 2014 LG Electronics. Inc. All right reserved.
3. TROUBLE SHOOTING
49
54
WLAN_I_P
59
WLAN_I_N
47
WLAN_Q_N
53
WLAN_Q_P
15
(06/07)
NC1
5
WL_BT_RFIO_2P4G
6
61
55
26
48
38
NC2
40
NC3
31
NC4
POWER/GND
34
VDD_IO_1P8 GND1
VDD_XO_1P8
44
VDD_DIG_1P2 GND2
45
GND3
39
VDD_FM_RXFE_1P3 GND4
VDD_FM_RXBB_1P3
14
VDD_FM_PLL_1P3 GND5
12
VDD_FM_VCO_1P3 GND6
2
GND7
19
VDD_BT_RF_1P3 GND8
10
VDD_BT_BB_1P3 GND9
1
VDD_BT_PLL_1P3 GND10
17
VDD_BT_VCO_1P3 GND11
42
U5100
VDD_BT_FM_DIG_1P3 GND12
WCN-3620-0-61WLNSP
35
VDD_WL_BB_1P3 GND13
25
VDD_WL_2GPA_1P3 GND14
VDD_WL_UPC_1P3
20
GND15
21
VDD_WL_2GLNA_1P3 GND16
32
VDD_WL_PLL_1P3 GND17
27
VDD_WL_LO_1P3 GND18
VDD_WL_2GPA_3P3
VDD_BT_DA_3P3
Only for training and service purposes
WLAN_SET
WLAN_CLK
WLAN_DATA_2
WLAN_DATA_1
WLAN_DATA_0
Isolated GND