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Page 2 of 37

Service Repair Documentation

Level 2.5e – C75

Release 1.0

Table of Contents:

1 List of available level 2,5e parts C75 4

2 Required Equipment for Level 2,5e 5

3 Required Software for Level 2,5e 5

4 Radio Part 6

4.1 BLOCK DIAGRAM RF PART 7

4.2 POWER SUPPLY RF-PART 7

4.3 FREQUENCY GENERATION 8

4.4 RECEIVER 11

4.5 TRANSMITTER 12

4.6 BRIGHT IC OVERVIEW 13

4.7 ANTENNA SWITCH (ELECTRICAL/MECHANICAL) 15

4.8 TRANSMITTER: POWER AMPLIFIER 17

5 Logic / Control 18

5.1 OVERVIEW HARDWARE STRUCTURE C75 18

5.2 SGOLDLITE 18

5.2.1 Digital Baseband 18

5.2.2 SDRAM 22

5.2.3 FLASH 23

5.2.4 SIM 23

5.2.5 Vibration Motor 23

5.2.6 Camera 23

5.2.7 Display 23

5.2.8 Camera, Display ASIC 24

6 IRDA 24

7 Power Supply 25

7.1 ASIC MOZART / TWIGO4 25

7.1.1 Battery 25

7.1.2 Charging Concept 25

8 Illumination 28

9 Interfaces 29

9.1 MICROPHONE (XG1901) 29

9.2 LOUDSPEAKER (XG1702-XG1703) 30

9.3 BATTERY (X1400) 30

Siemens C75 Service Repair Documentation

Other manuals for Siemens C75