LG KP500, Руководство по обслуживанию

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5. Trouble shooting
- 103 -
5.15.4 Checking Transceiver Output Signals
6 0 6 R
2
GND1
GND2
4
1 HOT1
HOT2 3
0 1
26MHz
X600 TSX- 3225
G
n 0 2 2
1 4 6 C
VRF_1V5
0 4 6 C
n 7 4
2 4 6 C
u 1 . 0
VRF_2V85
VRF_1V5
0 1
8 0 6 R
0 2 8
7 0 6 R
VRF_2V85
VRF_2V85
4 3 6 C
u 1 . 0
n 0 2 2
9 3 6 C
9 1
5 V 1 X R D D V
0 2
8 V 2 X R D D V 5 V 1 X T D D V
5 3
8 3
8 V 2 X T D D V
7 1
8 V 2 O C V D D V
8 V 2 O X D D V
5 1
X
O
1
1
1
2
X
O
X
3
0
R
X
1
X
2
7
R
X
2
R
X
2
X
2
8
R
X
3
2
4
2
5
R
X
3
X
R
X
4
2
2
2
3
R
X
4
X
6 3
1 X T
7 3
2 X T
4 3
S A I B V
C R _ O C V
8 1
3
1
V
D
D
B
IAS
2
V
8
8
V
D
D
D
IG
1
V
5
V
D
D
D
IG
2
V
8
5
2
1
V
D
D
L
N
A1
V
5
8 V 2 X I M D D V
9 3
AX
2
B
3 4
B
X
C
L
K
7 6
D
A
6 1
N E
F
E
1
3
2
2 E F
3 3
4 1
1 S Y S F
1
0
F
S
Y
S
2
F
S
Y
S
3
9
3 1
1 D N G
G
N
D
2
2
6
0 4
3 D N G
4 D N G
1 4
2
9
R
X
1
PMB6272
U601
EUSY0274801
A
1
LBAND_PAM_IN
HBAND_PAM_IN
TP1(LBNAD_PAM_IN)
TP2(HBNAD_PAM_IN)
MODE Transceiver Output
GSMK Fixed
8PSK Ramp Burst Control
Figure 20. Transceiver Output Circuit
Checking Points
Figure 21. Transceiver Output
Table 3. Transceiver Output Operation
TP1(LBNAD_PAM_IN)
TP2(HBNAD_PAM_IN)