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(5) Checking TX IQ
Test Points
U505
U101
Figure 4-13
Waveform
Checking Flow
Check if there is
Any Major Difference or not
Refer to Graph 4-8
C521
RXQN
RXIP
RXIN
C518
TXIP
TXIN
TXQP
TXQN
Graph 4-8
Similar?
Similar?
Similar?
Yes
Yes
Yes
Re-download the Software
And calibrate
- 67 -
4. TROUBLE SHOOTING
Circuit Diagram
1
2
3
4
5
6
7
No
No
No
Replace U102
QP
C518
39p
QN
IP
C521
39p
IN
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