LG -E455 Service Manual page 164

SD2_CMD
G10
SD2_CLK
F7
SD2_DAT0
K9
DVDDIO_SD2
B6
AVDD33_BTTX
B7
AVDD13_BTRX
A9
AVDD13_BTAFE
Close to Pin A9 B9
AVSS13_BTAFE_1
B5
C626
C624 C625
AVSS13_BTSXAFE
B8
AVSS13_BTSX_1
10p
100n 100n
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
C634 C635
AVSS13_RX_GPS
B12
AVSS13_SXIF_GPS
100n
100n
.
2
LGE Internal Use Only
U600
1
- 164 -
4. TROUBLE SHOOTING
FSOURCE
XTEST
GPIO1_10
GPIO1_11
GPIO1_9
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
3. Make star connection for AVDD13 (Both E6,E7 and E4,C4,G1)
C646
100n
4
3
Copyright © 2013 LG Electronics. Inc. All right reserved.
Only for training and service purposes
M3
H6
J6
J7
H3
R719
L7
L5
TP609
G13
F13
H13
J13
L11
Close to MT6575
L10
N9
C628 1u
N10
C629 1u
N13
R720 100p
M13
L13
J12
J11
H8
D8
H12
H11
M10
N11
FB601 120
M11
FB602 120
N12
L12
C636 C637
C638
0.1u 0.1u
1u
R
1
DNI
R718
R722
R721
FM_AUO
FM_AUO
FM_RX_
I2S_DA
I2S_CLK
I2S_WS
FM_AVD
FM_AVD