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Checking Tx IQ signals
U607
TXIN
TXIP TXQP TXQN
R
X
R
X
R
X
R
X
R
6
2
0
0
R
6
0
7
C
6
2
7
8
2
0
p
R
6
2
1
0
R
6
0
8
R
6
1
8
0
R
6
0
9
C
6
3
6
8
2
0
p
R
6
1
9
0
6
1
R
0
Signals are Normal?
Base Band signal is OK.
See next page to check
Transceiver Output Signal.
N I
P I
Q
P
Q
N
6
8
0
T
X
N I
T
X
P I
6
8
0
6
8
0
T
X
Q
P
T
X
Q
N
6
0
8
- 87 -
4. TROUBLE SHOOTING
No
Yes
RX
RX
TX
TX
CALL STATE
CALL STATE
Check ABB
[U101]
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