LG -P715 Service Manual page 74

GSM_HB_TX
DCS(1710-1785 MHz)
PCS(1850-1910 MHz)
Set the Phone Rx is ON
Check TP1 Signal exist ?
Check TP2 Signal exist ?
LGE Internal Use Only
SW1001
G1
G2 ANT
L1002
L1003
DNI
DNI
0603
R1002
GSM_PA_RAMP
2.2K
C1015
39p
R1003
68
R1004 R1005
10dB Atten
100 100
R1007
Yes
Yes
Change the board
SW1002 C1001 2.2n
2
ANT COMMON
1
G3 G4
3 4
L1004
0.5p
TP1
1
HB_IN
2
GND1
3
LB_IN
4
VAPC
5
U1002
VBATT
BS2
BS1
FEM
TXEN_
PGND1
No
Check RF Switch (M/S)
No
Check FEM Block Refer to 4.4
- 74 - Copyright © 2013 LG Electronics. Inc. All right reserved.
4. TROUBLE SHOOTING
L1005
100n
44
PGND16
43
PGND15
42
PGND14
41
PGND13
22
GND5
21
GND4
20
GND3
19
GND2
18
ANT
WCDMA3
WCDMA2
Only for training and service purposes