4. TROUBLE SHOOTING
- 62 -
(5) Checking TX IQ
U505
C519
C526
39p
C519
28
5
TXIN
4
TXIP
7
TXQN
6
TXQP
VDD2
32
26
XEN
27
XOUT
GND4
3
RXIN
RXIP
2
RXQN
1
RXQP
U505
SI4205
DIAG2
25
29
GND2
GND3
30
31
1000p
C516
39p
C526
IP
QP
QN
26MHz
IN
Redownload the Software
And calibrate
Check if there is
Any Major Difference
Refer to Graph 4 - 8
Similar?
Yes
No
Replace U102
Test Points
Waveform
Circuit Diagram
Checking Flow
Figure 4-12
Graph 4-7
Summary of Contents for C2100
Page 1: ...Service Manual Model C2100 Service Manual C2100 P N MMBD0048201 Date April 2005 Issue 1 0 ...
Page 76: ...4 TROUBLE SHOOTING 77 4 10 KEY backlight Trouble Test Points Figure 4 21 ...
Page 104: ... 105 8 PCB LAYOUT ...
Page 105: ... 106 8 PCB LAYOUT ...
Page 113: ...10 STAND ALONE TEST 114 Figure 10 2 HW test setting Figure 10 3 Ramping profile ...
Page 117: ...Note 118 ...
Page 119: ......
Page 135: ......