Nokia 6260 RM-25 Service Manual page 239

Mobile terminal

Table of Contents

RM-25

System module

System module block diagram..................................................................................................................................................9-5

Functional description..................................................................................................................................................................9-5

BB description.................................................................................................................................................................................9-6

Modes of operation.......................................................................................................................................................................9-6

Clocking scheme.............................................................................................................................................................................9-7

Power distribution, control and reset.....................................................................................................................................9-9

Back-up battery and real time clock......................................................................................................................................9-10

Baseband measurement A/D converter...............................................................................................................................9-10

ZOCUS...............................................................................................................................................................................................9-11

Bluetooth........................................................................................................................................................................................9-11

USB...................................................................................................................................................................................................9-11

SIM interface..................................................................................................................................................................................9-11

IrDA interface................................................................................................................................................................................9-11

MMC interface................................................................................................................................................................................9-11

Pop-PortTM....................................................................................................................................................................................9-11

Audio concept...............................................................................................................................................................................9-12

Camera interface..........................................................................................................................................................................9-14

FM radio..........................................................................................................................................................................................9-14

Flashing...........................................................................................................................................................................................9-14

Mode sensing................................................................................................................................................................................9-14

Testing interfaces........................................................................................................................................................................9-14

Extreme voltages.........................................................................................................................................................................9-16

RF description...............................................................................................................................................................................9-16

List of Tables

Table 30 Testing and flashing interface electrical specifications..................................................................................9-15

List of Figures

Figure 160 Module block diagram.............................................................................................................................................9-5

Figure 161 RM-25 clocking...........................................................................................................................................................9-8

Figure 162 RM-25 audio blocks................................................................................................................................................9-12

Figure 163 External audio connector.....................................................................................................................................9-13

9235618 (Issue 2)

Table of Contents

Company Confidential

Nokia Customer Care

Page 9-3

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