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C55 IFX
Siemens C55 IFX Manuals
Manuals and User Guides for Siemens C55 IFX. We have
1
Siemens C55 IFX manual available for free PDF download: Repair Documentation
Siemens C55 IFX Repair Documentation (45 pages)
Brand:
Siemens
| Category:
Cell Phone
| Size: 1.78 MB
Table of Contents
Table of Contents
2
1 List of Available Level 2,5E Parts C55 Ifx
4
2 Required Equipment for Level 2,5E
5
3 Required Software for Level 2,5E C55 Ifx
5
4 Radio Part Description
6
Introduction
6
Power Supply RF-Part
7
Frequency Generation
7
Synthesizer: the Discrete VCXO (26Mhz)
7
Synthesizer: LO1
8
Antenna Switch / External Antenna Connector (Electrical/Mechanical Only C55)
10
Frontendmodul (Electrical Antenna Switch)
10
Receiver
11
Receiver: EGSM900/GSM1800 - Filter to Demodulator
11
IC Overview
13
Transmitter
15
Transmitter: Modulator and Limited Amplifier
15
Transmitter: and Power Amplifier
16
5 Logic / Control
17
Overview of Hardware Structure
17
Logic Block Diagram
17
Block Diagram C55 IFX Control Part
17
Egold
18
Sram
22
Flash
22
Sim
22
Vibration Motor
23
6 Power Supply
23
Power Supply ASIC
23
Power Supply Operating Modes
25
Power Supply Functions
26
Battery
33
Charging Concept
34
7 Interfaces
37
Vibra
37
Earpiece
37
Microphone
38
Battery
38
IO Connector with ESD Protection
39
IO Connector - New Slim Lumberg
39
ESD Protection with EMI Filter
40
Sim
41
Display
41
8 Acoustic
42
Microphone
42
Mechanical
42
Electrical
42
Earpiece/Loudspeaker
43
Mechanical
43
Electrical
43
9 Display and Illumination
44
Display
44
Illumination
44
10 Keyboard
45
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