4. TROUBLE SHOOTING
- 117 -
4.17 Charger Trouble Shooting
Charging Procedure
- Connecting TA
- Control the charging current by PM6650 IC using USB_CNT_N or CHG_CNT_N signal
- Charging Current flows into the battery by control BATT_FET_N
Check Point
- Connection of TA
- Charging current path
- Battery
Trouble Shooting Setup
- Connect TA Cable and battery to the phone
Trouble Shooting Procedure
- Check the charger connector
- Check the charging current Path
- Check the battery
D1
D2
D3
D4
G
S
SI3493DV-E3
Q402
3
1
2
5
6
4
Q400
QST4
smd_2125h_65_r
0.1
R411
VBATT
BATT_FET_N
+VPWR
ICHARGE
ICHARGEOUT
CHG_CNT_N
+5V_PWR
Charging Current Flow
TA Charging control
TA
(5.4V)
Charging current
sensing
Pass control Tr
(ON)
4.2~4.25V
Battery charging
control
Main
Battery
Z3X-BOX.COM
Summary of Contents for L602i
Page 3: ... 4 Z 3 X B O X C O M ...
Page 46: ...3 TECHNICAL BRIEF 47 Figure PM6650 2 Functional Block Diagram Z 3 X B O X C O M ...
Page 71: ...4 TROUBLE SHOOTING 72 4 2 SIGNAL PATH WCDMA Tx PATH WCDMA Rx PATH Z 3 X B O X C O M ...
Page 83: ...4 TROUBLE SHOOTING 84 4 5 5 Check RF Rx Level TP1 TP3 TP4 Bias1 TP2 Z 3 X B O X C O M ...
Page 101: ...4 TROUBLE SHOOTING 102 LCD Control data flow Z 3 X B O X C O M ...
Page 113: ...4 TROUBLE SHOOTING 114 Z 3 X B O X C O M ...
Page 130: ...5 DOWNLOAD 131 Click on X button to use another function Z 3 X B O X C O M ...
Page 134: ...6 BLOCK DIAGRAM 135 Table 2 1 1 RF Block Component Z 3 X B O X C O M ...
Page 137: ...6 BLOCK DIAGRAM 138 Top Side Z 3 X B O X C O M ...
Page 138: ...6 BLOCK DIAGRAM 139 Bottom Side Z 3 X B O X C O M ...
Page 139: ... 140 Z 3 X B O X C O M ...
Page 149: ... 150 8 PCB LAYOUT Z 3 X B O X C O M ...
Page 150: ... 151 8 PCB LAYOUT Z 3 X B O X C O M ...
Page 151: ... 152 8 PCB LAYOUT Z 3 X B O X C O M ...
Page 152: ... 153 8 PCB LAYOUT Z 3 X B O X C O M ...
Page 153: ... 154 LGMC 8 PCB LAYOUT Z 3 X B O X C O M ...
Page 154: ... 155 LGMC 8 PCB LAYOUT Z 3 X B O X C O M ...
Page 155: ... 156 8 PCB LAYOUT Z 3 X B O X C O M ...
Page 161: ... 162 Z 3 X B O X C O M ...
Page 163: ... 164 Z 3 X B O X C O M ...
Page 191: ...Note Z 3 X B O X C O M ...
Page 192: ...Note Z 3 X B O X C O M ...