LG LG-P715 - Page 74

4. TROUBLE SHOOTING
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Only for training and service purposes
LGE Internal Use Only
Set the Phone Rx is ON
Check TP1 Signal exist ?
Check TP2 Signal exist ?
Check RF Switch (M/S)
Yes
No
Change the board
Check FEM Block Refer to 4.4
Yes
No
2.2nC1001
L1001
2.7n
L1004
0.5p
68
R1003
100
R1004
R1005
100
L1005
100n
SW1002
43
2
1
ANT
COMMON
G3 G4
R1002
2.2K
R1007
SW1001
G1
ANTG2
39p
C1015
U1002
GND1
2
VBATT
5
GND10
27
GND2
19
GND9
26
GND3
20
GND8
25
GND4
21
ANT
18
PGND1
GND5
22
GND6
23
GND7
24
PGND13
41
PGND14
42
PGND15
43
PGND16
44
HB_IN
1
GND11
28
LB_IN
3
VAPC
4
BS2
BS1
TXEN_
WCDMA3
WCDMA2
L1002
DNI
L1003
DNI
GSM_HB_TX
GSM_PA_RAMP
0603
DCS(1710-1785 MHz)
PCS(1850-1910 MHz)
10dB Atten
FEM
TP1