LG LG-E410 - Page 44

4. TROUBLE SHOOTING
- 44 -
Copyright © 2013 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
RF Tx Level is OK
Yes
Check PAM Block
Refer to 1.5.4
Check TX Module
Yes
No
Check Duplexer
Yes
No
Check RTR6285A
Yes
No
No
Check TP1 Over 21dBm?
Check TP2 Over 21dBm?
Check TP3 Over 21dBm?
Check TP4 Over 7dBm?
Check ANT_SEL 0,1,2
(High, Low, Low)
RTR6285 Maximum output Power = 7 dBm
RTR6285 minimum output Power = -80 dBm
C1076
1n
L1015
4.7p
L1016
0.5p
c1104
8.2n
L1029
6.8n
L1031
6.8n
C1103
DNI
DNI
C1108
R1020
12
FL1007
75
8
4 9
2
3
16
ANT
RX1
TX
GND1
GND5GND2
RX2
GND3 GND4
FL1004
532
41
IN
OUT
G1 G2 G3
1.5n
c1085
3.9n
L1034
U1002
6 5
7 4
8 3
9 2
10 1
11
PGND
VCC1VCC2
RFINRFOUT
VMODE_1CPL_IN
VMODE_0GND
VENCPL_OUT
DNI
C1117
R1026
430
C1109
100p
C1110
100p
49.9
R1022
C1112
0.5p
R1017
51
C1091
DNI
L1020
1.8n
VBAT
10n
C1089
1.2p
C1116
C1082
330p
100p
C1094
VBAT
C1097
680p
C1093
100p
33
C1131
C1132
1.8n
110
R1019
21
R1018
110
C1095
680p
C1080
330p
1
2
2.2u
C1081
68
C1090
C1096
2.2u
1
2
FL1006
75
84
92
3
16
ANT
RX
TX
GND1 GND6
GND2 GND5
GND3 GND4
C1107
DNI
DNI
R1027
L1033
5.6n
FL1008
532
41
IN
OUT
G1 G2 G3
100p
C1134
C1111
1.8n
100p
C1135
3.3p
L1022
L1021
1.2p
C1133
DNI
U1003
6 5
7 4
8 3
9 2
10 1
11
PGND
VCC1VCC2
RFINRFOUT
VMODE_1CPL_IN
VMODE_0GND
VENCPL_OUT
R1024
430
PA_ON0
PA_R0
PA_R0
PA_ON1
3G_PAM_MODE
3G_PAM_MODE
RX_WCDMA_HB
W850_W900_TX_OUT
PDET_IN
RX_WCDMA_900_P
RX_WCDMA_900_M
W1900_W2100_TX_OUT
W1900_W2100_RTX
W850_W900_RTX
Band I
WCDMA DUAL
Band VIII
Close to pin1
8dB
ATTEN -> DNI
TP2
TP3
TP4