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(2) Checking Mobile SW &PAM
TP2
C302 33p
L302
1n
C303
33n
FILKOR
TP3
C311
L310
33p
C312
DNI
TP7
C304
220p
RSVD2
14
GND13
RSVD1
23
13
GND12
24
U300
GND11
BS
25
12
SMRH0007101
SKY77550
ANT
VSW_EN
26
11
GND10
Tx_HB_IN
27
10
GND9
28
PGND
Tx_LB_IN
29
9
VBAT
GND
Figure 4.2.2
LGE Internal Use Only
TP1
L300
L380
12n
33n
FILKOR
L390
C300
2.2p
10n
L381
12n
L391
C306
2.2p
10n
L305
33n
FILKOR
L308
3.3n
L350
C310
1.5p
3.6n
1n
L311
L351
3.3n
3.6n
C317
1.5p
TP6
RF_TX_EN
C350
22p
10K
R392
RF_TX_RAMP
TP5
2
R391
24K
1
RF_2G_BS
R394
DNI
RF_VLOGIC
R370
C301
22
RF_HB_TX
DNI
TP4
C397
RF_LB_TX
33
TP5
(V_Ramp)
TP6
(TX EN)
TP2
Figure 4.3.4
EGSM Rx
RF_LB_RXP
RF_LB_RXN
TP7 BS
L306
5.6n
TP4 VLOGIC
RF_HB_RXP
TP6 Tx_EN
RF_HB_RXN
L312
5.6n
- 49 -
Copyright © 01 LG Electronics. Inc. All right reserved.
4. TROUBLE SHOOTING
TP7(BS)
TP4
(VLOGIC)
TP3
Figure 4.3.6
Only for training and service purposes
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