4. TROUBLE SHOOTING
- 43 -
(4) Checking RX IQ
Redownload software and calibration again
Similar?
No
Replace U501
Yes
No
Check C523,C526.
Check if there is any
Major difference
Refer to graph 4-3
C523
C526
U501
39p
C523
8
XOUT
BQN
5
BQP
6
BIN
7
BIP
39p
C526
R514
NA
26M_DBB
IN
IP
QN
QP
TEST POINT
Checking Flow
Waveform
CIRCUIT
Graph 3
Figure 5
Summary of Contents for KG225
Page 1: ...Date April 2006 Issue 1 0 Service Manual Model KG225 Service Manual KG225 M O B ILE CAM E R A ...
Page 3: ... 4 ...
Page 19: ...3 TECHNICAL BRIEF 20 Figure 3 4 SYSTEM INTERCONECTION OF AD6720 EXTERNAL INTERFACE ...
Page 66: ...4 TROUBLE SHOOTING 67 4 12 KEY backlight Trouble Q300 R359 TEST POINT Figure 21 ...
Page 79: ... 80 5 DOWNLOAD B Multi Download Procedure 1 Run GSM Multi Download program and select Setting ...
Page 84: ... 85 6 BLOCK DIAGRAM 6 BLOCK DIAGRAM ...
Page 85: ... 86 ...
Page 92: ... 93 KG225 8 PCB LAYOUT ...
Page 93: ... 94 KG225 8 PCB LAYOUT ...
Page 101: ... 102 10 STAND ALONE TEST Figure 10 2 HW test setting Figure 10 3 Ramping profile ...
Page 109: ... 110 ...
Page 125: ...Note ...
Page 126: ...Note ...