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4. TROUBLE SHOOTING
(5) Checking TX IQ
Test Points
U505
C519
Figure 4-12
Circuit Diagram
Checking Flow
C526
1
RXQN
2
U505
RXIP
3
SI4205
RXIN
4
TXIP
5
TXIN
6
TXQP
7
TXQN
Check if there is
Similar?
Any Major Difference
Refer to Graph 4 - 8
Redownload the Software
And calibrate
Waveform
Graph 4-7
C516
1000p
C526
39p
C519
39p
No
Replace U102
Yes
- 62 -
26MHz
QP
QN
IP
IN
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