4. TROUBLE SHOOTING
- 68 -
Check SW501.ANT, RF with RF
Cable connected.
Open
Yes
Changing SW501
Check SW501.ANT,RF
with RF Cable disconnected
Short
Yes
Changing SW501
No
No
Check C505,C506,C507
Check whether FEM
Set as TX mode
Rrefer to Graph4-6(a), 4-6(b)
Rrefer to Table 4-3
Yes
Check VC1, VC2, VC3
Check RF Level of
FL601.10 (for GSM) & Pin 8 (for
DCS)
Pin10 : ~32.5dBm
Pin 8 : ~29.5dBm
No
Yes
No
Changing board
Go to 4.3.5 Checking PAM
control signal
END
For the test,
TX Stand alone Mode is needed. (PL=5 for
GSM, PL=0 for DCS)
Checking Flow
Table 4-2
Vc1
Vc2
Vc3
Current
EGSM-Tx
0.0-0.1V
0.0-0.1V
2.3-3.0V
10mA Max
EGSM-Rx
0.0-0.1V
0.0-0.1V
0.0-0.1V
≈ 0mA
DCS/PCS-Tx
0.0-0.1V
2.3-3.0V
0.0-0.1V
10mA Max
DCS-Rx
0.0-0.1V
0.0-0.1V
0.0-0.1V
≈ 0mA
PCS-Rx
2.3-3.0V
0.0-0.1V
0.0-0.1V
10mA Max
Summary of Contents for M6100
Page 1: ...Date February 2006 Issue 1 0 Service Manual Model M6100 Service Manual M6100 ...
Page 3: ... 4 ...
Page 15: ...3 TECHNICAL BRIEF 16 Figure 3 1 SKY74400 FUNCTIONAL BLOCK DIAGRAM ...
Page 40: ...3 TECHNICAL BRIEF 41 3 7 CAMERA IC AIT813 U701 Figure 3 18 AIT813 APPLICATION BLOCKDIAGRAM ...
Page 42: ...3 TECHNICAL BRIEF 43 3 8 MIDI IC YMU787 U708 Figure 3 20 YMU787 BLOCKDIAGRAM ...
Page 63: ...4 2 TX Trouble 4 TROUBLE SHOOTING 64 SKY74400 FEM 13Mhz OSCILLATOR TEST POINT Figure 4 2 ...
Page 98: ...4 TROUBLE SHOOTING 99 4 16 Camera and Flash Trouble Camera Module CN802 U704 U705 Figure 4 17 ...
Page 109: ... 110 ...
Page 119: ... 120 8 PCB LAYOUT ...
Page 120: ... 121 8 PCB LAYOUT ...
Page 121: ... 122 8 PCB LAYOUT ...
Page 122: ... 123 8 PCB LAYOUT ...
Page 123: ... 124 ...
Page 131: ...10 STAND ALONE TEST 132 Figure 10 2 HW test setting Figure 10 3 Ramping profile ...
Page 137: ... 138 ...
Page 159: ...Note ...
Page 160: ...Note ...