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Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
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LGE Property
4.13.4 Checking Transceiver Output Signals
Figure 20. Transceiver Output Circuit
Checking Points
Figure 21. Transceiver Output
Table 3. Transceiver Output Operation
Ramp Burst Control
8PSK
Fixed
GMSK
Transceiver Output
MODE
TP1(LBNAD_PAM_IN)
G
TP2(HBNAD_PAM_IN)
G
TP1(LBNAD_PAM_IN
TP2(HBNAD_PAM_IN
X601
26MHZ
TSX-3225
2
1
3
4
GND2
HOT2
HOT1
GND1
U601
PMB6272
20
19
18
17
16
15
14
13
1
2
2
1
2
2
1
1
3
2
0
1
4
2
9
5
2
8
6
2
7
7
2
6
8
2
5
9
2
4
0
3
3
1
3
2
2
3
1
33
34
35
36
37
38
39
40
41
GND4
GND3
VDDMIX2V8
VDDTX2V8
TX2
TX1
VDDTX1V5
VBIAS
FE2
A
1
EF
X
A
8
V2
S
AI
B
D
D
V
B
X1
X
R
X
B
1
X
R
8
V2
GI
D
D
D
V
X2
X
R
A
D
2
X
R
KL
C
2
D
N
G
5
V1
GI
D
D
D
V
X3
X
R
3
S
Y
SF
3
X
R
2
S
Y
SF
X4
X
R
O
X
4
X
R
X
O
X
5
V1
A
NL
D
D
V
GND1
FSYS1
VDDXO2V8
EN
VDDVCO2V8
VCO_RC
VDDRX1V5
VDDRX2V8
0.22uF
C613
0.047uF
C617
C618
0.1uF
90
6
R
01
10
R610
C622
0.22uF
R612
820
RF_CLK
2V85_VRF
VC2
LBAND_PAM_IN
HBAND_PAM_IN
1V53_VRF
26MHZ_BT
TP1(LBNAD_PAM_IN)
TP2(HBNAD_PAM_IN)
Содержание GT350
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