C O N T E N T S
9. Flow Chart of Troubleshooting
9-1. Power On..................................................................................................................9-1
9-2. Initial ..........................................................................................................................9-3
9-3. Charging Part ...........................................................................................................9-4
9-4. Sim Part....................................................................................................................9-6
9-5. Microphone Part-Phone MIC ...................................................................................9-8
9-6. Microphone Part-Earphone MIC.............................................................................9-10
9-7. Earphone Part.........................................................................................................9-12
9-8. Speak Part..............................................................................................................9-14
9-9. Key Data Input.......................................................................................................9-16
9-10. LCD Part...............................................................................................................9-17
9-11. Camera Part..........................................................................................................9-19
9-12. LCD Back Light.....................................................................................................9-21
9-13. Key Back Light.....................................................................................................9-23
9-14. GSM Receiver.......................................................................................................9-25
9-15. GSm Transmitter...................................................................................................9-27
9-16. DCS Receiver.......................................................................................................9-29
9-17. DCS Transmitter...................................................................................................9-31
9-18. PCS Receiver ......................................................................................................9-33
9-19. PCS Transmitter...................................................................................................9-35
9-20. WCDMA Receiver.................................................................................................9-37
9-21. WCDMA Transmitter.............................................................................................9-39
10. Reference data
Summary of Contents for SGH-Z720M
Page 44: ...8 PCB Diagrams 8 1 Top ...
Page 45: ...PCB Diagrams 8 2 Bottom ...
