User Guide

L
Antenna S/W Control Circuit
VC1 : GSM TX VC2 : DCS TX
L
VC1 VC2
Tx(GSM)
Tx(DCS)
RX
H
H
R704
LL
120
33PF C710
22K,1%
R703
R705
10K
C705
100PF
R701
10K,1%
10K
10K
R711
270PF
C708
R712
68
27PF
R709
C709
1
C.OUT
GND
2
4
IN
OUT
3
3PF
C711
OUT
U700
DCS214E-0897
CRS5001-1702
CON700
3
G1
4
G2
5
G3
6
G4
IN
12
GG
12
10
GSM_RX
5
GSM_TX
2
VC1 VC2
11
ANT
8
DCS_RX
1
DCS_TX
3
G
46
G
7
G
9
R714 20K
ES-A5010B
U704
R713 20K
C707 27PF
10K,1%
R700
L701
4
2
VAPC
VCTL
7
3
VDD1
VDD2
6
10nH
12
13
G5
G6
14
15
G7
G8
16
17
G9
1
GSM
5
POUTDCS
POUTGSM
PF08122B-10-TB
U701
DCS
8
9
G1
18
G10
G2
10
11
G3
G4
C713
1NF
B1
2
B2
5
C1
6
C2
3
E1
1
E2
4
C2
3
E1
1
E2
4
RN4985-TE85L
Q700
1
E2
4
RN4985-TE85L
Q701
B1
2
B2
5
C1
6
Q702
RN4985-TE85L
B1
2
B2
5
C1
6
C2
3
E1
150 R708
68 R710
U703
DCS214E-1747
1
C.OUT
GND
2 4
IN
OUT
3
ANT700
GH61-00026A
1
1 2
2
3
3
C716 22PF
C717
27PF
C700
220UF
9
VCC2
4.7nH
L700
U702
7
AMP0 AMPIB
6 5
DACin
14
GND1
11
GND2
3
IN+
2
IN-
15
IN2-
8
ModeSW
10
PS
12
RFin1
13
RFin2
1
VAPC1
16
VAPC2
4 VCC1
HD155173ANP
82
R706
82
R707
390PF
C704
120PF
C706 47PF
C703
2.7K
R702
33PF
C715 C714 33PF
C702
1NF
1PF
C712
BANDSEL _BANDSEL
100PF
C701
3VRF
3VTXEN2 VC2 VC1
3VRF
TXEN2
+VBATT
GSMTX
DCSRX GSMRX
VC1 VC2
DCSTX
VC2
TXPOWER
Flow chart of Troubleshooting and Circuit Diagram 5-26