4. TROUBLE SHOOTING
- 42 -
Check C540,C541
Check whether Ant SW
Set as RX mode
Refer to Table 4-2
Yes
VC1 :Low
VC2 :Low
Check SW500 Pin ANT,RF
with RF Cable connected.
Open
Yes
Changing SW500
Check SW500 Pin ANT,RF
with No RF Cable Connected
Short
Yes
Changing SW500
For these 2 test case,
No Call connection is needed
No
No
Changing the Board.
Check RF Level of
FL500.10 (for GSM) &
FL500.12(for DCS)
Ant SW & Mobile SW is OK
See next Page to check
Rx IQ Signal
Pin10 : ~ -62dBm
Pin 12 : ~ -63dBm
No
Changing FL500
Yes
No
For this RF Level test case,
RX Stand alone Mode is needed
refer to chapter 11
Checking Flow
Table 4-2
ANT_SW1
ANT_SW2
GSM_TX
HIGH
LOW
DCS_TX
LOW
HIGH
RX
LOW
LOW
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 ...