Samsung SGH-S720i Service Manual

Also see for SGH-S720i: User guide

Contents1. Specification1-1. GSM General Specification .......................................................................................1-11-2. GSM TX power class ...............................................................................................1-22. Exploded View and Parts list2-1. Cellular phone Exploded View ..................................................................................2-12-2. Cellular phone Parts list ............................................................................................2-22-3. Disassembly ...............................................................................................................2-92-4. Assembly ..................................................................................................................2-113. Chart of Troubleshooting3-1. Baseband ............................................................................................................3-13-1-1. Power ON .....................................................................................................3-13-1-2. System Initial ................................................................................................3-53-1-3. SIM Part .......................................................................................................3-83-1-4. Charging Part .............................................................................................3-103-1-5. Microphone Part .........................................................................................3-123-1-6. Speaker Part ..............................................................................................3-153-1-7. Camera Part ..............................................................................................3-183-1-8. LCD .............................................................................................................3-213-2. RF ......................................................................................................................3-133-2-1. EGSM Rx ...................................................................................................3-233-2-2. DCS Rx ......................................................................................................3-243-2-3. PCS Rx ......................................................................................................3-253-2-4. EGSM Tx ...................................................................................................3-273-2-4. DCS & PCS Tx .........................................................................................3-283-2-6. BLUETOOTH ..............................................................................................3-30