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4. TROUBLESHOOTING
(4) Checking TX IQ
TEST POINT
CIRCUIT
1
VCC3
2
I+_TX_I+
3
I-_TX_I-
4
Q-_TX_Q-
5
Q+_TX_Q+
6
VCC1
Checking Flow
C512
Check if there is
Any Major Difference
Refer to Graph 4-9
Re-download the Software
And calibrate
Waveform
Graph 4-9
C510
39p
VBAT
C511
39p
C513
No
Replace U500
Similar?
Yes
- 64 -
IP
IN
QN
QP
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