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Siemens C55 Repair Documentation
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ICM MP CCQ GRM
A55/C55_Hitachi
Company Confidential © Copy
right Siemens AG
04/03
Waveform of the A
FC_PNM signal
from EGOLD+ to Oscillator
Circuit diagram
EGO
LD+
V1
.
3
GND
GND
47K
R615
AFC
Si
gna
l
f
or
m
C110
C616
100N
100N
AF
C_
P
NM
GND
C600
10N
R60
0
V
602
B
AS170W
123
12
3
30K
22K
R10
6
from EGOLD
to Bright IC
7
9
Table of Contents
Default Chapter
2
Table of Contents
2
1 List of Available Level 2,5E Parts A55/C55
4
2 Required Equipment for Level 2,5E
5
3 Required Software for Level 2,5E A55/C
5
4 Radio Part
6
Power Supply RF-Part
6
Frequency Generation
7
Synthesizer: the Discrete VCXO (26Mhz)
7
Synthesizer: LO1
9
Synthesizer: LO2
11
Synthesizer: PLL
12
Antenna Switch (Electrical/Mechanical Only C55)
13
Receiver
15
Receiver: EGSM900/1800 -Filter to Demodulator
15
IC Overview
17
Transmitter
18
Transmitter: Modulator and Up-Conversion Loop
18
Transmitter: Power Amplifier
19
5 Logic / Control
20
Overview of Hardware Structure
20
Logic Block Diagram
20
Block Diagram A55/C55 Control Part
20
Egold
21
Sram
25
Flash
25
Sim
25
Vibration Motor
26
6 Power Supply
26
Power Supply ASIC
26
Power Supply Diagram
27
Power Supply Operating Modes
28
Power Supply Functions
29
Battery
36
Charging Concept
36
7 Interfaces
40
Vibra
40
Earpiece
40
Microphone
41
Battery
41
IO Connector with ESD Protection
42
IO Connector - New Slim Lumberg
42
ESD Protection with EMI Filter
43
Sim
44
Display
44
8 Acoustic
45
Microphone
45
Mechanical
45
Electrical
45
Earpiece/Loudspeaker
46
Mechanical
46
Electrical
46
9 Display and Illumination
47
Display
47
Illumination
47
10 Keyboard
48
Other manuals for Siemens C55
Manual
137 pages
User Guide
110 pages
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Siemens C55 Specifications
General
Brand
Siemens
Model
C55
Category
Cell Phone
Language
English
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