Nokia N72 Service Manual page 240

Nokia Customer Care
Battery connector and interface connections & electrical characteristics...........................................9-38
Internal interfaces...........................................................................................................................................9-38
Internal interfaces......................................................................................................................................9-38
UI connections............................................................................................................................................9-39
Keyboard interface electrical characteristics..........................................................................................9-39
Display connector and interface connections.........................................................................................9-40
Camera interface connections and electrical characteristics.................................................................9-41
Flash LED interface and electrical characteristics...................................................................................9-43
Slider switch electrical characteristics.....................................................................................................9-44
Back-up battery interface connections and electrical characteristics..................................................9-44
RF description.......................................................................................................................................................9-44
Receiver............................................................................................................................................................9-44
Introduction to receiver functionality.....................................................................................................9-44
GSM receiver................................................................................................................................................9-44
Transmitter......................................................................................................................................................9-45
Introduction to transmitter functionality...............................................................................................9-45
GSM transmitter functionality...................................................................................................................9-45
Frequency synthesizers..................................................................................................................................9-45
Regulators........................................................................................................................................................9-46
Frequency mappings............................................................................................................................................9-47
EGSM900 frequencies......................................................................................................................................9-47
GSM1800 frequencies......................................................................................................................................9-48
GSM1900 frequencies......................................................................................................................................9-49
List of Tables
Table 16 Camera specifications..........................................................................................................................9-18
Table 17 Keymatrix..............................................................................................................................................9-23
Table 18 LED driver control signals....................................................................................................................9-25
Table 19 ALS resistor values................................................................................................................................9-26
Table 20 Supply voltages for combo memory interfaces.................................................................................9-27
Table 21 Audio connector pin assignments......................................................................................................9-32
Table 22 Charging interface connections..........................................................................................................9-37
Table 23 Charging IF electrical characteristics..................................................................................................9-37
Table 24 Battery interface connections.............................................................................................................9-38
Table 25 Battery IF electrical characteristics.....................................................................................................9-38
Table 26 User interface connections..................................................................................................................9-39
Table 27 Display interface connections.............................................................................................................9-40
Table 28 Camera interface connections.............................................................................................................9-41
Table 29 Camera CCP IF electrical characteristics..............................................................................................9-42
Table 30 Camera supply voltage characteristics...............................................................................................9-43
Table 31 Camera control IF electrical characteristics.......................................................................................9-43
Table 32 Flash LED interface connections..........................................................................................................9-43
Table 33 Flash LED interface electrical characteristics ....................................................................................9-44
Table 34 Back-up battery connections...............................................................................................................9-44
Table 35 Back-up battery electrical characteristics..........................................................................................9-44
List of Figures
Figure 86 System level block diagram..................................................................................................................9-7
Figure 87 Functional block diagram.....................................................................................................................9-8
Figure 88 Application processor high level block diagram................................................................................9-9
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System Module
Issue 1