Nokia 7370, Service Manual

Page: 185 / 226

Table of Contents
Phone description .................................................................................................................................................. 8–5
Engine ...................................................................................................................................................................... 8–8
Engine modules ................................................................................................................................................. 8–8
RF engine ............................................................................................................................................................ 8–8
Main processor ................................................................................................................................................... 8–9
Energy management ......................................................................................................................................... 8–9
Battery and charging ........................................................................................................................................... 8–10
Test pattern .......................................................................................................................................................... 8–11
Interfaces .............................................................................................................................................................. 8–12
PopPort system connector ............................................................................................................................. 8–12
FM radio ............................................................................................................................................................ 8–12
Camera ............................................................................................................................................................. 8–13
SIM .................................................................................................................................................................... 8–13
User interface ........................................................................................................................................................ 8–15
User interface .................................................................................................................................................. 8–15
Swivel switch ................................................................................................................................................... 8–16
Audio concept ....................................................................................................................................................... 8–17
Audio hardware architecture ......................................................................................................................... 8–17
Internal microphone ....................................................................................................................................... 8–18
External microphone ....................................................................................................................................... 8–18
Internal earpiece ............................................................................................................................................. 8–18
Internal speakers ............................................................................................................................................. 8–18
External earpiece ............................................................................................................................................. 8–19
Vibra circuitry .................................................................................................................................................. 8–19
Connections ........................................................................................................................................................... 8–20
USB interface .................................................................................................................................................... 8–20
Bluetooth ......................................................................................................................................................... 8–20
Technical specifications ....................................................................................................................................... 8–21
General specifications ..................................................................................................................................... 8–21
Battery endurance ........................................................................................................................................... 8–21
Environmental conditions .............................................................................................................................. 8–21
Electrical characteristics ................................................................................................................................. 8–22
Main RF characteristics ................................................................................................................................... 8–22
List of Tables
Table 14 PopPort connector pins and signals ................................................................................................... 8–12
Table 15 Key signal matrix .................................................................................................................................. 8–16
Table 16 Normal and extreme voltages ............................................................................................................. 8–22
Table 17 Channel numbers and frequencies ..................................................................................................... 8–22
Table 18 Main RF characteristics ......................................................................................................................... 8–23
Table 19 Transmitter characteristics .................................................................................................................. 8–23
Table 20 Receiver characteristics ........................................................................................................................ 8–24
List of Figures
Figure 47 PWB overview ........................................................................................................................................ 8–6
Figure 48 System block diagram ........................................................................................................................... 8–7
Figure 49 Board and module connections ........................................................................................................... 8–8
Figure 50 BL-4B battery and battery connector ................................................................................................ 8–10
RM-70
System module Nokia Customer Care
Issue 1 COMPANY CONFIDENTIAL Page 8 –3
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