![background image](http://html.mh-extra.com/html/samsung/sgh-e390/sgh-e390_service-manual_1190563003.webp)
C O N T E N T S
9. Flow Chart of Troubleshooting
9-1. Pown on.....................................................................................................................9-1
9-2. Initial...........................................................................................................................9-3
9-3. Charging Part.............................................................................................................9-5
9-4. SIM Part.....................................................................................................................9-6
9-5. Microphone Part.........................................................................................................9-8
9-6. Speaker Part............................................................................................................9-10
9-7. Key Data Input........................................................................................................9-12
9-8. Reciever Part...........................................................................................................9-14
9-9. Back Light(for LCD).................................................................................................9-16
9-10. Key Back Light......................................................................................................9-18
9-11. Camera Part...........................................................................................................9-20
9-12. GSM900 Receiver..................................................................................................9-23
9-13. GSM900 Transmitter..............................................................................................9-24
9-14. DCS Receiver........................................................................................................9-25
9-15. DCS Transmitter....................................................................................................9-26
9-16. PCS Receiver.........................................................................................................9-27
9-17. PCS Transmitter.....................................................................................................9-28
9-18. GSM850 Reciever..................................................................................................9-29
9-19. GSM850 Transmitter..............................................................................................9-30
10. Reference data