LG -600 Series Repair Manual page 23

6. TROUBLE SHOOTING
Failure :
Solution :
- If Pin 2 < 2 v,
Replace Backup Battery.
- If Pin 5 < 3.32 v,
Check Placement U903.
- If Pin 1 < 3.32 v,
Replace U903.
GSM Handsets Lab.
Power-ON button is not working.
23
Back battery, Switch
U903 5
1
2