Siemens A55 Manuals
3 pdf manual(s) Siemens A55 for free download (Document Types: Operation & user’s manual, Repair documentation)
Available Documents for A55:
Brand: Siemens
Model: A55
Format: PDF
Key Aspects: Standard Operating Procedures, Hardware Setup Instructions, Troubleshooting Information
Updated: 12.05.2026
Source File: 324421.pdf
Pages: 97
Description: User guidebook for the Siemens A55.
Contents
Document Preview & Text Transcription
s
A55
Issued by
Information and Communication mobile
Haidenauplatz 1
D-81667 Munich
© Siemens AG 2002
All rights reserved. Subject to availability.
Rights of modification reserved.
Siemens Aktiengesellschaft
www.my-siemens.com
Be inspired
Contents
1
See also Index at the end of this User Guide
Safety precautions ..................... 3
Overview of the phone .............. 5
Display symbols (selection) ....... 7
Getting Started .......................... 8
Insert SIM card/battery ............. 9
Charge battery ....................... 10
Switch on, off / PIN entry ......... 11
General Instructions ................. 12
User Guide ............................. 12
Menu Control ......................... 12
Security .................................... 14
My phone ................................. 16
Making a phone call ................. 17
Dialling with number keys ...... 17
End call .................................. 17
Set volume ............................. 17
Redial previous numbers ........ 17
When a number is busy .......... 18
Accept call ............................. 18
Reject call .............................. 19
Handsfree .............................. 19
Held call ................................. 19
Call waiting/Swap ................... 20
Conference ............................ 21
Call menu .............................. 21
Direct call ............................... 22
Phonebook ................................23
..........................23
Call/search for an entry ...........24
Call with record no. ...............24
Edit entry ...............................24
Location: ...............................25
Assign animation ....................26
Groups ...................................27
Call records ...............................31
Duration/ charges .....................32
Voice message/Mailbox ............33
Messages (SMS) ........................34
Read messages .......................34
Inbox/outbox .........................35
Compose a message ...............36
Predefined text .......................37
Text entry with T9 ..................37
SMS to group ..........................39
Picture & sound ......................39
SMS profiles ...........................40
Cell broadcast services .............42
Surf & fun .................................43
Internet (WAP) ........................43
Games ....................................47
Own pictures/
Own animations .....................48
Own sounds ...........................49
Calculator ...............................51
Currency converter .................51
In-
end
er
Contents
2
See also Index at the end of this User Guide
Ring tones ................................ 53
Setup ........................................ 56
Language ............................... 56
Display ................................... 56
Screensaver ........................... 57
Call setup ............................... 57
Divert ..................................... 59
Clock ..................................... 60
Security ................................. 61
Network ................................. 62
Master reset ........................... 64
Profiles ..................................... 65
Change setting ....................... 65
Car Kit ................................... 66
Headset ................................. 66
Aircraft mode ......................... 66
Alarm clock .............................. 67
Fast access key ......................... 68
Left soft key ........................... 68
Speed dialling keys ................. 69
Notes A-Z ..................................70
Questions & Answers ................77
Customer Care ..........................80
Specifications/maintenance .....82
Accessories ...............................83
Basics .....................................83
Car Solutions .........................83
Quality declaration for battery ...84
Guarantee certificate (UK) .......85
Guarantee certificate (IRL) .......87
SAR - European Union (RTTE) ...89
SAR - International (ICNIRP) ......91
Index .........................................92
Brand: Siemens
Model: A55
Format: PDF
Key Aspects: Pre-Installation Safety Requirements, Regulatory Compliance and Standards, Product Performance Metrics
Updated: 29.03.2026
Source File: 842855.pdf
Pages: 45
Description: Usage and setup manual for the Siemens A55.
Contents
Document Preview & Text Transcription
V 1.10
Page 1of 45
ICM MP CCQ GRM
A52/A55/C55 IFX
Company Confidential © Copyright Siemens AG
08/03
A52, A55 & C55 IFX
Level 2.5e
Repair Documentation
V 1.10
Version
Date
Department
Notes to change
V 1.00
09.052003
ICM MP CCQ GRM
New document
V 1.10
11.08.2003
ICM MP CCQ GRM
Document modified (A52)
V 1.10
Page 2of 45
ICM MP CCQ GRM
A52/A55/C55 IFX
Company Confidential © Copyright Siemens AG
08/03
Table of Contents:
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
4.1
Introduction.....................................................................................................6
4.2
Power Supply RF-Part....................................................................................7
4.3
Frequency generation ....................................................................................7
4.3.1
Synthesizer: The discrete VCXO (26MHz)...........................................................................7
4.3.2
Synthesizer: LO1..................................................................................................................8
4.4
Antenna Switch / External Antenna Connector (electrical/mechanical only
C55) 10
4.5
Frontendmodul (Electrical Antenna Switch) ..............................................10
4.6
Receiver.........................................................................................................11
4.6.1
Receiver: EGSM900/GSM1800 – Filter to Demodulator ...................................................11
4.6.2
IC Overview........................................................................................................................13
4.7
Transmitter....................................................................................................15
4.7.1
Transmitter: Modulator and Limited Amplifier ....................................................................15
4.7.2
Transmitter: and Power Amplifier.......................................................................................16
5
LOGIC / CONTROL...........................................................................................17
5.1
Overview of Hardware Structure.................................................................17
5.1.1
Logic Block Diagram ..........................................................................................................17
5.1.2
Block Diagram C55 IFX Control Part .................................................................................17
5.1.3
EGOLD+.............................................................................................................................18
5.1.4
SRAM .................................................................................................................................22
5.1.5
FLASH................................................................................................................................22
5.1.6
SIM .....................................................................................................................................22
5.1.7
Vibration Motor ...................................................................................................................23
6
POWER SUPPLY..............................................................................................23
6.1
Power Supply ASIC ......................................................................................23
6.1.1
Power Supply Operating modes: .......................................................................................25
6.1.2
Power Supply Functions:....................................................................................................26
6.2
Battery ...........................................................................................................33
6.3
Charging Concept.........................................................................................34
V 1.10
Page 3of 45
ICM MP CCQ GRM
A52/A55/C55 IFX
Company Confidential © Copyright Siemens AG
08/03
7
INTERFACES....................................................................................................37
7.1
Vibra...............................................................................................................37
7.2
Earpiece.........................................................................................................37
7.3
Microphone ...................................................................................................38
7.4
Battery ...........................................................................................................38
7.5
IO Connector with ESD protection..............................................................39
7.5.1
IO Connector – New Slim Lumberg ...................................................................................39
7.5.2
ESD Protection with EMI filter ............................................................................................40
7.6
SIM .................................................................................................................41
7.7
Display...........................................................................................................41
8
ACOUSTIC........................................................................................................42
8.1
Microphone ...................................................................................................42
8.1.1
Mechanical .........................................................................................................................42
8.1.2
Electrical.............................................................................................................................42
8.2
Earpiece/Loudspeaker .................................................................................43
8.2.1
Mechanical .........................................................................................................................43
8.2.2
Electrical.............................................................................................................................43
9
DISPLAY AND ILLUMINATION........................................................................44
9.1
Display...........................................................................................................44
9.2
Illumination ...................................................................................................44
10
KEYBOARD ...................................................................................................45
V 1.10
Page 4of 45
ICM MP CCQ GRM
A52/A55/C55 IFX
Company Confidential © Copyright Siemens AG
08/03
1 List of available level 2,5e parts C55 IFX
ID-No
Type
Board
Name, Location
Part-No.
D150
VCO
HIT
Transmitter_VCO
L36820-L6097-D670
D1600
VCO
IFX
Transmitter_VCO
L36820-L6109-D670
D171
IC
HIT/IFX
Egold+
L36810-G6149-D670
D1740
Filter
IFX
Ant_Switch_Diplexer
L36197-F5006-F936
D1785
IC
IFX
Transceiver IC
L36197-F5011-F334
D361
IC
HIT/IFX
ASIC
L36145-J4682-Y43
D800
IC
HIT
Transceiver IC
L36820-L6105-D670
D920
IC
HIT
PA_Comperator
L36820-L6133-D670
R1507
Resistor
IFX
Temp_Resistor
L36120-F4223-H
R959
Resistor
HIT
Temp_Resistor
L36120-F4223-H
V1500
Diode
IFX
Capa_Diode
L36840-D61-D670
V151
Diode
HIT/IFX
Diode_KB7
L36840-D5062-D670
V181
Diode
HIT/IFX
Diode_Battery_Interface
L36702-A1051
V211
Transistor
HIT/IFX
Tran._Vibra
L36830-C1097-D670
V220
Diode
HIT/IFX
Diode_Vibra
L36851-Z9105-Z981
V222
Transistor
HIT/IFX
Trans_Light_
L36830-C1112-D670
V223
Transistor
HIT
Trans_Light_
L36840-C4004-D670
V361
Transistor
HIT/IFX
Tran._Charge
L36830-C1110-D670
V850
Transistor
HIT
Tran._VCO_Switch
L36820-C6047-D670
V920
Diode
HIT
Feedback_Diode
L36840-D5049-D670
V921
Transistor
HIT
Tran._PA_Switch
L36820-C6047-D670
V950
Transistor
HIT
Tran._26MHz_Ampl.
L36840-C4049-D670
V951
Diode
HIT
Capa_Diode
L36840-D61-D670
Z1500
Quartz
IFX
Oszillator_26MHz
L36145-F260-Y17
Z1600
Filter
IFX
Transmitter_Filter
L36145-K280-Y242
Z1700
IC
IFX
Power_Amplifier
L36197-F5005-F487
Z171
Quartz
HIT/IFX
Quarz/Egold
L36145-F102-Y8
Z211
Filter
HIT/IFX
Logic/IO_Interface
L36197-F5000-F116
Z850
VCO
HIT
1LO_VCO
L36145-G100-Y96
Z851
Filter
HIT
Filter_BALUN
L36145-K260-Y41
Z880
IC
HIT
Ant_Switch_Diplexer
L36145-K280-Y257
Z900
IC
HIT
Power_Amplifier
L36851-Z2002-A59
Z950
Quartz
HIT
Oszillator_26MHz
L36145-F260-Y17
Brand: Siemens
Model: A55
Format: PDF
Key Aspects: Error Code Explanations, Troubleshooting Information, Cleaning and Sanitization Methods
Updated: 28.04.2026
Source File: 1999749.pdf
Pages: 48
Description: Device setup manual for the Siemens A55.
Contents
Document Preview & Text Transcription
V1.20
Page 1 of 48
ICM MP CCQ GRM
A55/C55_Hitachi
Company Confidential © Copyright Siemens AG
04/03
A55/C55 Hitachi
Level 2.5e
Repair Documentation
V 1.20
Version
Date
Department
Notes to change
V 0.95
28.08.2002
ICM MP CCQ S T
New document
V 1.00
24.10.2002
ICM MP CCQ GRM
Modified document
V 1.10
17.02.2003
ICM MP CCQ GRM
Modified document
V 1.20
30.04.2003
ICM MP CCQ GRM
Modified document
V1.20
Page 2 of 48
ICM MP CCQ GRM
A55/C55_Hitachi
Company Confidential © Copyright Siemens AG
04/03
Table of Contents:
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/C55........................................5
4
RADIO PART ......................................................................................................6
4.1
Power Supply RF-Part....................................................................................6
4.2
Frequency generation ....................................................................................7
4.2.1
Synthesizer: The discrete VCXO (26MHz)...........................................................................7
4.2.2
Synthesizer: LO1..................................................................................................................9
4.2.3
Synthesizer: LO2................................................................................................................11
4.2.4
Synthesizer: PLL ................................................................................................................12
4.3
Antenna switch (electrical/mechanical only C55)......................................13
4.4
Receiver.........................................................................................................15
4.4.1
Receiver: EGSM900/1800 –Filter to Demodulator.............................................................15
4.4.2
IC Overview........................................................................................................................17
4.5
Transmitter....................................................................................................18
4.5.1
Transmitter: Modulator and Up-conversion Loop...............................................................18
4.5.2
Transmitter: Power Amplifier..............................................................................................19
5
LOGIC / CONTROL...........................................................................................20
5.1
Overview of Hardware Structure.................................................................20
5.1.1
Logic Block Diagram ..........................................................................................................20
5.1.2
Block Diagram A55/C55 Control Part.................................................................................20
5.1.3
EGOLD+.............................................................................................................................21
5.1.4
SRAM .................................................................................................................................25
5.1.5
FLASH................................................................................................................................25
5.1.6
SIM .....................................................................................................................................25
5.1.7
Vibration Motor ...................................................................................................................26
6
POWER SUPPLY..............................................................................................26
6.1
Power Supply ASIC ......................................................................................26
6.1.1
Power Supply Diagram.......................................................................................................27
6.1.2
Power Supply Operating modes: .......................................................................................28
6.1.3
Power Supply Functions:....................................................................................................29
6.2
Battery ...........................................................................................................36
6.3
Charging Concept.........................................................................................36
7
INTERFACES....................................................................................................40
V1.20
Page 3 of 48
ICM MP CCQ GRM
A55/C55_Hitachi
Company Confidential © Copyright Siemens AG
04/03
7.1
Vibra...............................................................................................................40
7.2
Earpiece.........................................................................................................40
7.3
Microphone ...................................................................................................41
7.4
Battery ...........................................................................................................41
7.5
IO Connector with ESD protection..............................................................42
7.5.1
IO Connector – New Slim Lumberg ...................................................................................42
7.5.2
ESD Protection with EMI filter ............................................................................................43
7.6
SIM .................................................................................................................44
7.7
Display...........................................................................................................44
8
ACOUSTIC........................................................................................................45
8.1
Microphone ...................................................................................................45
8.1.1
Mechanical .........................................................................................................................45
8.1.2
Electrical.............................................................................................................................45
8.2
Earpiece/Loudspeaker .................................................................................46
8.2.1
Mechanical .........................................................................................................................46
8.2.2
Electrical.............................................................................................................................46
9
DISPLAY AND ILLUMINATION........................................................................47
9.1
Display...........................................................................................................47
9.2
Illumination ...................................................................................................47
10
KEYBOARD ...................................................................................................48
V1.20
Page 4 of 48
ICM MP CCQ GRM
A55/C55_Hitachi
Company Confidential © Copyright Siemens AG
04/03
1 List of available level 2,5e parts
A55/C55
ID-No
Type
Board
Name, Location
Part-No.
D150
VCO
HIT
Transmitter_VCO
L36820-L6097-D670
D1600
VCO
IFX
Transmitter_VCO
L36820-L6109-D670
D171
IC
HIT/IFX
Egold+
L36810-G6149-D670
D1740
Filter
IFX
Ant_Switch_Diplexer
L36197-F5006-F936
D1785
IC
IFX
Transceiver IC
L36197-F5011-F334
D361
IC
HIT/IFX
ASIC
L36145-J4682-Y43
D800
IC
HIT
Transceiver IC
L36820-L6105-D670
D920
IC
HIT
PA_Comperator
L36820-L6133-D670
R1507
Resistor
IFX
Temp_Resistor
L36120-F4223-H
R959
Resistor
HIT
Temp_Resistor
L36120-F4223-H
V1500
Diode
IFX
Capa_Diode
L36840-D61-D670
V151
Diode
HIT/IFX
Diode_KB7
L36840-D5062-D670
V181
Diode
HIT/IFX
Diode_Battery_Interface
L36702-A1051
V211
Transistor
HIT/IFX
Tran._Vibra
L36830-C1097-D670
V220
Diode
HIT/IFX
Diode_Vibra
L36851-Z9105-Z981
V222
Transistor
HIT/IFX
Trans_Light_
L36830-C1112-D670
V223
Transistor
HIT
Trans_Light_
L36840-C4004-D670
V361
Transistor
HIT/IFX
Tran._Charge
L36830-C1110-D670
V850
Transistor
HIT
Tran._VCO_Switch
L36820-C6047-D670
V920
Diode
HIT
Feedback_Diode
L36840-D5049-D670
V921
Transistor
HIT
Tran._PA_Switch
L36820-C6047-D670
V950
Transistor
HIT
Tran._26MHz_Ampl.
L36840-C4049-D670
V951
Diode
HIT
Capa_Diode
L36840-D61-D670
Z1500
Quartz
IFX
Oszillator_26MHz
L36145-F260-Y17
Z1600
Filter
IFX
Transmitter_Filter
L36145-K280-Y242
Z1700
IC
IFX
Power_Amplifier
L36197-F5005-F487
Z171
Quartz
HIT/IFX
Quarz/Egold
L36145-F102-Y8
Z211
Filter
HIT/IFX
Logic/IO_Interface
L36197-F5000-F116
Z850
VCO
HIT
1LO_VCO
L36145-G100-Y96
Z851
Filter
HIT
Filter_BALUN
L36145-K260-Y41
Z880
IC
HIT
Ant_Switch_Diplexer
L36145-K280-Y257
Z900
IC
HIT
Power_Amplifier
L36851-Z2002-A59
Z950
Quartz
HIT
Oszillator_26MHz
L36145-F260-Y17
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