5-6
Troubleshooting
5.6 Charge Trouble
START
Charging is
not working.
Case 1
Case 2
Reassemble
battery pack.
The battery
pack is well contacted to
the phone?
YES
NO
Replace the
battery pack.
NO
Replace the
defective TA.
NO
The battery
voltage is between
3.4V~4.2V?
YES
TA voltage is
equal to 5.2V/
600mA?
YES
CN300 is
well connected
to PCB?
Re-mount CN300.
NO
Q401(Pin1~Pin7)
voltage is higher
than 4.0V?
Replace Q401.
NO
R411
voltage is lower
than 3.4V?
Replace R411.
NO
YES
YES
YES
Re-download S/W.
END
Summary of Contents for V310
Page 1: ...GPRS PHONE SERVICE MANUAL MODEL V310 ...
Page 2: ...Rev 1 00 ...
Page 6: ...1 2 Introduction Memo ...
Page 16: ...3 5 Disassembly Instruction 3 4 Exploded View and Parts List 3 4 1 Exploded View Main ...
Page 17: ...3 6 Disassembly Instruction 3 4 2 Exploded View Folder ...
Page 43: ...5 20 Troubleshooting Memo ...
Page 44: ...6 1 6 Block Diagram 6 1 BB Block Diagram ...
Page 45: ...6 2 Block Diagram 6 2 RF Block Diagram ...
Page 46: ...6 3 7 Schematic Diagram 7 1 Key Pad ...
Page 47: ...7 2 Schematic Diagram 7 2 Main Board 7 2 1 Chipset Calypso IOTA ...
Page 48: ...7 3 Schematic Diagram 7 2 2 Memory Melody Charger ...
Page 49: ...7 4 Schematic Diagram 7 2 3 Audio ...
Page 50: ...7 5 Schematic Diagram 7 2 4 I O B d to LCD Connector SIM Interface ...
Page 51: ...7 6 Schematic Diagram 7 2 5 Camera ...
Page 52: ...7 7 Schematic Diagram 7 3 RF Schematic 7 3 1 RF PAM ...
Page 53: ...7 8 Schematic Diagram 7 3 2 RF Main IC ...
Page 54: ...7 9 Schematic Diagram Memo ...
Page 55: ...8 1 8 PCB Diagram 8 1 Main PCB Top View ...
Page 56: ...8 2 PCB Diagram Bottom View ...
