LG -E445 Service Manual page 149

TP5
ANT702
C754 2n
C745 100p
L709
L710 L711 L712
DNI DNI
100p
3.9n
TP6
BT&WIFI Notch filter
SD2_CLK
F7
SD2_DAT0
K9
DVDDIO_SD2
B6
AVDD33_BTTX
B7
AVDD13_BTRX
A9
AVDD13_BTAFE
B9
AVSS13_BTAFE_1
B5
C725
C723 C724
AVSS13_BTSXAFE
B8
AVSS13_BTSX_1
10p
100n 100n
A8
AVSS13_BTSX_2
E8
GND3
B11
Close to Pin A9
NC1
D13
OSC1_GPS
E13
SYNC
H10
ECLOCK
E12
DUTY_LOSS
B13
RF_INN_GPS
A13
RF_INP_GPS
F4
GPIO1_25
F9
GPIO1_24
G9
GPIO1_26
G8
GPIO1_27
G7
(5/23)
GPIO1_28
C13
1 R712
AVDD28_OSC
C12
AVDD13_SXIF_GPS
A12
AVDD13_LNA_GPS
C11
AVSS28_OSC
A11
C732 C733
AVSS13_RX_GPS
B12
AVSS13_SXIF_GPS
100n
100n
LGE Internal Use Only
FL703
2.7n
C746
OUT IN
3 1
L713
1.2n
C748
0.5p
U701
U701
MT6620
SPDT for BT&Wi-Fi
C743
8.2p
VCTL2
4
IN GND
5 2
VCTL1
6
C747
8.2p
TP4
FM_AUOUT_R
FM_AUOUT_L
FM_TX_OUT
FM_RX_IN_N
FM_RX_IN_P
I2S_DATA_IN
I2S_DATA_OUT
3. Make star connection for AVDD13 (Both E6,E7 and E4,C4,G1)
C744
R713
100n
10K
R714
10K
- 149 - Copyright © 2013 LG Electronics. Inc. All right reserved.
4. TROUBLE SHOOTING
Close to Pin A5
C737 100p
L708
DNI
TP3
TP1
ANTSEL_0
ANTSEL_1
TP2
Close to Pin A3
C749 22p
C750
C751
DNI
DNI
FSOURCE
M3
XTEST
H6
GPIO1_10
J6
GPIO1_11
J7
GPIO1_9
H3
GPIO1_13
L7
GPIO1_12
L5
GPIO1_14
G13
RTCCLK_O
F13
RTCCLK
H13
VRTC
J13
AVSSRTC
L11
FM_AUIN_R
L10
FM_AUIN_L
N9
C727 1u
N10
C728 1u
N13
M13
R708 0
L13
J12
R709 330
J11
H8
I2C_SDA
D8
Added BB Side Another 330R! Needed checking
I2C_SCL
H12
R710 330
I2S_CLK
H11
R711 330
I2S_WS
M10
NC2
N11
FB702
120
FM_VDD28
M11
FB703
120
FM_VDD13
N12
FM_VSS2
L12
C734
C735
C736
FM_VSS1
1u
0.1u 0.1u
Only for training and service purposes
WIFI_RX_BT_TRX
WIFI_TX
FM_RX_IN_N
I2S_DATA_IN
I2S_CLK
I2S_WS
FM_AVDD28
FM_AVDD13