Nokia RH-99 Service Manual page 111

RH-99; RH-100; RH-105; RH-106
System module
Block diagram.........................................................................................................................................................6-5
System module block diagram ........................................................................................................................6-5
Functional description ......................................................................................................................................6-5
Baseband description ............................................................................................................................................6-5
UPPCosto ...........................................................................................................................................................6-5
LITTI ....................................................................................................................................................................6-6
Modes of operation ...........................................................................................................................................6-6
Audio function description...............................................................................................................................6-6
External audio connector .................................................................................................................................6-7
External signals and connections ....................................................................................................................6-8
Interfaces ................................................................................................................................................................6-9
RF/BB Interface ..................................................................................................................................................6-9
LCD interface ......................................................................................................................................................6-9
Keyboard .........................................................................................................................................................
SIM interface ...................................................................................................................................................
Battery connector...........................................................................................................................................
Battery BL-5CA ................................................................................................................................................
PWB outline ....................................................................................................................................................
RF description ......................................................................................................................................................
Frequency band, power and multi-slot
Transmitter Architecture Description
Digitally Controlled X-tal Oscillator
List of Tables
Table 6 Connector for External Audio Accessories ..............................................................................................6-8
Table 7 System connector .....................................................................................................................................6-8
Table 8 SIM interface...........................................................................................................................................
Table 9 Battery IF ................................................................................................................................................
Table 10 Frequency bands and TX power class
List of Figures
Figure 77 Module block diagram ..........................................................................................................................6-5
Figure 78 Audio block diagram.............................................................................................................................6-7
Figure 79 4-pole jack plug for audio accessory...................................................................................................6-8
Figure 80 RF/BB Interface ......................................................................................................................................6-9
Figure 81 Keyboard schematics
Figure 82 SIM interface block
Figure 83 BL-5CA battery block
Figure 84 PWB top side component placement
Issue 2
Table of Contents
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COMPANY CONFIDENTIAL
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