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.
ChartofTroubleshooting
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