LG D686 Service Manual page 115

A9
AVDD13_BTAFE
B9
AVSS13_BTAFE_1
B5
AVSS13_BTSXAFE
B8
AVSS13_BTSX_1
A8
AVSS13_BTSX_2
E8
GND3
B11
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
GPIO1_28
C13
AVDD28_OSC
C12
AVDD13_SXIF_GPS
A12
AVDD13_LNA_GPS
C11
AVSS28_OSC
A11
C834 C835
AVSS13_RX_GPS
B12
AVSS13_SXIF_GPS
100n
100n
.
2
LGE Internal Use Only
U801
1
3. Make star connection for AVDD13 (Both E6,E7 and E4,C4,G1)
2
C851
100n
1
4
- 115 - Copyright © 2013 LG Electronics. Inc. All right reserved.
3. TROUBLE SHOOTING
GPIO1_13
L7
GPIO1_12
L5
GPIO1_14
G13
RTCCLK_O
F13
RTCCLK
H13
VRTC
J13
AVSSRTC
L11
FM_AUIN_R
Close to MT6577
L10
FM_AUIN_L
N9
C829 1u
FM_AUOUT_R
N10
C830 1u
FM_AUOUT_L
N13
FM_TX_OUT
C831
M13
FM_RX_IN_N
L13
FM_RX_IN_P
J12
I2S_DATA_IN
J11
I2S_DATA_OUT
H8
I2C_SDA
D8
I2C_SCL
H12
I2S_CLK
H11
I2S_WS
M10
NC2
N11
FB802
FM_VDD28
M11
FB803
FM_VDD13
N12
FM_VSS2
L12
C836
C837
FM_VSS1
0.1u 0.1u
3
Only for training and service purposes
TP810
1
100p
120
120
C839
1u