4. TROUBLE SHOOTING
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Copyright © 2013 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
C642
3.3p
C646
100n
U600
B12
A11
C11
A12
C12
C13
G7
G8
G9
F9
F4
A13
B13
E12
H10
E13
D13
B11
E8
A8
B8
B5
B9
A9
B7
B6
K9
F7
G10
J2
L9
J9
E1
C2
A1
G1
C4
E4
E6
E7
K7
F5
E3
C5
E5
D4
E2
G3
B1
B3
C3
H4
K8
M8
N8
H5
M7
J8
G4
L8
G5
A4
A5
A3
C1
D1
RX_5G_IN TX5G_OU
T
TX2G_OU
T
RX2G_I
P
RX2G_I
N
EED
I
EESK EEC
S
CLK_DC SD1_DAT
1
SD1_DAT
2
SD1_DAT
3
SD1_CM
D
SD1_CLK SD1_DAT
0
AVSS33_B
A
AVSS33_PA_
1
AVSS33_PA_
2
AVSS13_WIFISX_
1
AVSS33_WIFISX_
2
AVSS13_B
B
AVSS13_PLL_1 AVSS13_PLL_2 AVSS13_TRX2G5G GND1 GND2 AVDD13_PLL_1 AVDD13_PLL_2 AVDD13_B
B
AVDD13_TRX5G AVDD13_WIFISX_
1
AVDD33_P
A
AVDD33_B
A
AVDD33_WIFISX_
2
DVDDIO_SDIO1 ANTSEL_4 ANTSEL_3
SD2_CMD
SD2_CLK
SD2_DAT0
DVDDIO_SD2
AVDD33_BTTX
AVDD13_BTRX
AVDD13_BTAFE
AVSS13_BTAFE_1
AVSS13_BTSXAFE
AVSS13_BTSX_1
AVSS13_BTSX_2
GND3
NC1
OSC1_GPS
SYNC
ECLOCK
DUTY_LOSS
RF_INN_GPS
RF_INP_GPS
GPIO1_25
GPIO1_24
GPIO1_26
GPIO1_27
GPIO1_28
AVDD28_OSC
AVDD13_SXIF_GPS
AVDD13_LNA_GPS
AVSS28_OSC
AVSS13_RX_GPS
AVSS13_SXIF_GPS
TP610
TP611
TP612
C643
10p
C640
10p
100n
C641
C634
100n
10p
C624
100n
C625
C626
100n
100n
C635
+1V8_VIO_MTK
.
SD1_DAT
3
SD1_DAT
2
SD1_DAT
1
GPS_SYNC
+2V8_VIO_MT
K
WIFI_T
X
BT_AVDD13
WF_PA_VC
C
GPS_AVDD13
BT_AVDD33
+2V8_TCXO_LDO
RF_INP_GPS
WIFI_RX_BT_TRX
OSC1_GPS
WIFI_AVDD13
SD1_DAT
0
SD1_CM
D
SD1_CLK
Close to Pin A9
Close to MT6620
Close to MT6620
1n
C655
C654
1u
7L26002009
X600
26MHz
GND
2
VCC
4
OUTPUT
3
GND_NC
1
+2V8_TCXO_LDO
OSC1_GPS
1. Fillcut TCXO area including Lay 8th,7th,6th
2. GND clearance over 1.5mm surrounding TCXO
TP1