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4. TROUBLE SHOOTING
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Copyright © 2012 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
1. TP1 :
VREG_MSMP_2.6V
2. TP2 :
VREG_MSME_1.8V
3. TP3 :
SLEEP_CLK
4. TP4 :
BT_CLK
5. TP5 :
BT_ANT_OUT
FL700
2450MHz
IN
OUT
GND1
GND2
ANT703
ALA321C3
2
1
FEEDING
NC
C708
1.2p
R702
15K
12p
C713
C712
12p
0
R704
0
R701
1n
C711
L702
1.2n
VREG_MSMP_2.6V
C703
10n
R703
15K
2.2u
C707
VREG_MSME_1.8V
0
R705
U700
F4
D5
A1
B6
D7
E6
F3
F6
A2
A3
B3
E3
C3
F2
D2
E5
C2
F5
A4
B4
C4
E4
E2
D4
C1
C6
D1
B2
E1
B5
C5
C7
D6
A6
B7
B1
E7
F7
A7
F1
D3
A5
VBAT
VDDO
VDDC2
VREG
VDDP
X
VDDRF
VDD_US
B
VDDT
F
VREGHV
RES
RFP
RST_N
REG_EN
SCL
HUSB_DN
SDA
TM2
SPIM_CLK
PCM_IN
SPIM_CS_N
PCM_OUT
PCM_CLK
LPO_IN
PCM_SYNC
XIN
UART_TXD
XOUT
UART_RXD
UART_RTS_N
GPIO_0
UART_CTS_N
GPIO_1
VDDC1
HUSB_DP
VSS6 VSS5 VSS4 VSS3 VSS2 VSS1
GPIO_6
GPIO_5
10p
C706
FB700
600
0
R706
X700
NX2520SD
26MHz
2
1
3
4 GND
XTAL
TER1
TER2
C704
2.2u
10n
C702
C709
10p
DNI
C710
10n
C705
C701
10p
L701
DNI
VREG_MSME_1.8V
GND
BT_RESET_N
SLEEP_CLK
BT_PCM_CLK
BT_PCM_SYNC
HOST_WAKES_BT
BT_WAKES_HOST
UART1_CTS_N
UART1_RFR_N
BT_PCM_DIN
BT_PCM_DOUT
UART_TXD
UART_RXD
Class 2 mode: VDDTF(B7) should be tied to VREG(A7)
TP2
TP1
TP5
TP3
TP4
TP2
TP1
TP3
TP4
TP5