Contents
1. Specification
1-1. GSM General Specification .......................................................................................1-1
1-2. GSM TX power class ...............................................................................................1-2
2. Exploded View and Parts list
2-1. Cellular phone Exploded View ..................................................................................2-1
2-2. Cellular phone Parts list ............................................................................................2-2
2-3. Disassembly ...............................................................................................................2-9
2-4. Assembly ..................................................................................................................2-11
3. Chart of Troubleshooting
3-1. Baseband ............................................................................................................3-1
3-1-1. Power ON .....................................................................................................3-1
3-1-2. System Initial ................................................................................................3-5
3-1-3. SIM Part .......................................................................................................3-8
3-1-5. Microphone Part .........................................................................................3-12
3-1-6. Receiver part ..............................................................................................3-15
3-1-7. Speaker Part ..............................................................................................3-18
3-2. RF ....................................................................................................................3-13
3-2-1. EGSM Rx ...................................................................................................3-23
3-2-2. DCS Rx ......................................................................................................3-24
3-2-3. EGSM Tx.....................................................................................................3-25
3-2-4. DCS Tx ......................................................................................................3-27
