- 87 -
(FL508
Check TP1
If GSM over 31dBm ?
If DCS/PCS over 28dBm ?
START
GSM/DCS/PCS
Tx is Ok
Check other part
Check ANT. SW
Module (U100)
Refer to chapter 3.4
Change the Board
Check Soldering of
PAM (U102) Block.
If problems stiil exist, replace the
PAM.
YES
YES
NO
NO
NO
NO
Check TP2, TP3
If TP2 over 29dBm ?
If TP3 over 25dBm ?
Check PAM Block (U102)
OK ?
Refer to chapter 3.6.4
Check TXVCO (X100)
Refer to chapter 3.6.1
YES
Problems resolved?
YES
GSM/DCS/PCS
Tx is OK
NO
Check ANT.SW
Module(FL508)
Refer to chapter 3.4
Check TXVCO(U103)
Refer to chapter 3.6.1
Z3X-BOX.COM
Summary of Contents for L601i
Page 1: ...Date October 2006 Issue 1 0 Service Manual Model L601i Service Manual L601i Z 3 X B O X C O M ...
Page 3: ... 4 Z 3 X B O X C O M ...
Page 45: ...3 TECHNICAL BRIEF 46 Figure PM6650 2 Functional Block Diagram Z 3 X B O X C O M ...
Page 105: ...4 TROUBLE SHOOTING 106 Audio AMP 22 and 23 pin of CN501 Z 3 X B O X C O M ...
Page 109: ...4 TROUBLE SHOOTING 110 Ear_sense_n pin R506 R507 R505 Z 3 X B O X C O M ...
Page 112: ...4 TROUBLE SHOOTING 113 Q400 Q401 VBAT T GND Z 3 X B O X C O M ...
Page 125: ...5 DOWNLOAD 126 Click on X button to use another function Z 3 X B O X C O M ...
Page 130: ...6 BLOCK DIAGRAM 131 6 2 Interface Diagram L601i Interface Diagram Z 3 X B O X C O M ...
Page 132: ...6 BLOCK DIAGRAM 133 Top Side Z 3 X B O X C O M ...
Page 133: ... Bottom Side 6 BLOCK DIAGRAM 134 Z 3 X B O X C O M ...
Page 141: ... 142 8 PCB LAYOUT Z 3 X B O X C O M ...
Page 142: ... 143 8 PCB LAYOUT Z 3 X B O X C O M ...
Page 143: ... 144 8 PCB LAYOUT Z 3 X B O X C O M ...
Page 144: ... 145 8 PCB LAYOUT Z 3 X B O X C O M ...
Page 145: ... 146 Z 3 X B O X C O M ...
Page 151: ... 152 Z 3 X B O X C O M ...
Page 153: ... 154 Z 3 X B O X C O M ...
Page 176: ...Note Z 3 X B O X C O M ...
Page 177: ...Note Z 3 X B O X C O M ...