LG D686 - Page 115

3. TROUBLE SHOOTING
- 115 -
Copyright © 2013 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
1uC849
C851
100n
1
2
C830 1u
C839
1u
C835
100n
C829 1u
100n
C834
C846
100n
10pC845
10p
C847
10p
C848
0.1u
C836
0.1u
C837
120FB802
TP813 TP812 TP811
TP810
1
U801
L12
N12
M11
N11
M10
H11
H12
D8
H8
J11
J12
L13
M13
N13
N10
N9
L10
L11
J13
H13
F13
G13
L5
L7
B12
A11
C11
A12
C12
C13
G7
G8
G9
F9
F4
A13
B13
E12
H10
E13
D13
B11
E8
A8
B8
B5
B9
A9
G2 D7 D6 C7 C6 D9 M9 J3 H2 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_OUT
TX2G_OUT
RX2G_IP RX2G_IN
EEDI EESK EECS CLK_DC SD1_DAT1
SD1_DAT2 SD1_DAT3 SD1_CMD
SD1_CLK SD1_DAT0 AVSS33_BA AVSS33_PA_1
AVSS33_PA_2
AVSS13_WIFISX_1
AVSS33_WIFISX_2 AVSS13_BB
AVSS13_PLL_1 AVSS13_PLL_2 AVSS13_TRX2G5G GND1 GND2
AVDD13_PLL_1 AVDD13_PLL_2 AVDD13_BB AVDD13_TRX5G
AVDD13_WIFISX_1 AVDD33_PA AVDD33_BA AVDD33_WIFISX_2 DVDDIO_SDIO1
ANTSEL_4 ANTSEL_3 ANTSEL_2
ANTSEL_1 ANTSEL_0 WLAN_ACT AVSS13_BTSXAFE_1
AVSS13_BTSXAFE_2
AVSS13_BTSXAFE_3
AVSS13_BTSXAFE_4 NC3
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
GPIO1_13
GPIO1_12
GPIO1_14
RTCCLK_O
RTCCLK
VRTC
AVSSRTC
FM_AUIN_R
FM_AUIN_L
FM_AUOUT_R
FM_AUOUT_L
FM_TX_OUT
FM_RX_IN_N
FM_RX_IN_P
I2S_DATA_IN
I2S_DATA_OUT
I2C_SDA
I2C_SCL
I2S_CLK
I2S_WS
NC2
FM_VDD28
FM_VDD13
FM_VSS2
FM_VSS1
FB803 120
C831 100p
.
+2V8_VIO_MTK
SD1_DAT1 SD1_DAT2 SD1_DAT3
WIFI_TX
ANTSEL_1 ANTSEL_0
SD1_CLK
SD1_CMD
SD1_DAT0
WIFI_AVDD13
WIFI_RX_BT_TRX
WF_PA_VCC
Close to MT6577
3. Make star connection for AVDD13 (Both E6,E7 and E4,C4,G1)
Close to MT6620
Close to MT6620
1
2
4
3