Table of Contents
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RM-839; RM-840; RM-841
System Module
Introduction...........................................................................................................................................................
management.............................................................................................................................................
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SD.................................................................................................................................................
interface......................................................................................................................................................
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audio................................................................................................................................................
audio................................................................................................................................................
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List of Tables
Table 6 Maximum frequency for main system
List of Figures
Figure 40 Battery
connector.................................................................................................................................
Figure 41 Power on key
Figure 42 Power on
sequence..............................................................................................................................
Figure 43 Clock concept overview
Figure 44 Clock distribution
Figure 45 Dual SIM controller
Figure 46 SIM
connectors...................................................................................................................................
Figure 47 SD
interface........................................................................................................................................
Figure 48 LCD interface
Figure 49 keypad
interface................................................................................................................................
Figure 50 LED interface
Figure 51 Camera interface
Figure 52 vibrator interface
Figure 53 Audio
concept....................................................................................................................................
Figure 54 Internal earpiece
Issue 1
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Table of Contents
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display.................................................................................
keypad.................................................................................
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component............................................................................
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6-5
6-5
6-6
6-6
6-7
6-8
6-10
6-10
6-12
6-16
6-16
6-19
6-19
6-19
6-20
6-21
6-22
6-23
6-24
6-24
6-25
6-27
6-31
6-31
6-32
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6-33
6-34
6-11
6-7
6-8
6-9
6-10
6-12
6-17
6-18
6-19
6-20
6-21
6-21
6-23
6-24
6-25
6-26
Page 6 - 3
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