Local Service Organization Service Manual
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Table of Contents
1 CELLULAR COMMUNICATION ..........................................................................................................2
1.1 SUBSCRIBER IDENTITY MODULE (SIM)...........................................................................................4
2 KEY FEATURES ......................................................................................................................................5
3 ACCESSORIES ........................................................................................................................................7
4 EXPLODED VIEW OF X3 ......................................................................................................................8
5 SPARE PARTS LIST...............................................................................................................................9
6 DISASSEMBLY OF X3 ........................................................................................................................ 11
7 REASSEMBLY OF X3 ......................................................................................................................... 13
7.1 INSTALLATION OF THE SIM CARD................................................................................................. 14
8 INTERNATIONAL MOBILE EQUIPMENT IDENTITY, IMEI....................................................... 15
10 BATTERY INFORMATION............................................................................................................. 16
11 GENERAL TESTING INFORMATION......................................................................................... 18
ANNEX 1 .......................................................................................................................................................... 21
ANNEX 2 .......................................................................................................................................................... 21
1
1 Cellular Communication
The cellular systems are made up of numerous transmitting and receiving sites, whose
individual coverage areas partially overlap. The concept of frequency re-use, same
frequency is used by several sites, allows a high traffic density in a wide area. Due to the
limited transmission range of the terminals, cellular systems are based on a large number of
base stations on the infrastructure side, scattered over the area to cover, with each covering
a fairly small geographical zone called cell. Cells are often represented by hexagons (see
figure 1.1.).
FIGURE 1.1
CELLULAR COVERAGE REPRESENTATION.
GSM Network Architecture.
GSM network can be broadly divided into three broad parts, namely:
1. Mobile Station(MS) carried by the subscriber,
2. Base Station Sub-system (BSS) which controls the radio link with the mobile station.
3. Mobile Switching Centre (MSC) which performs the switching of calls between the mobile
users, and between mobile and fixed network users.
2
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Xelibri X3 Level 2 Service Manual
FIGURE 1.2 GSM ARCHITECTURE
Each mobile station is given a unique identity. As soon as the mobile phone is turned on, it
registers with the network and is authenticated; as such the network could always find the mobile
phone.
Larger amount of data is being exchanged to and from the following functional blocks in the MSC:
Visitor Location Register, VLR
Stores information about mobile subscribers that enter it coverage area, which is associated with
the geographical area where the mobile is currently roaming. When there is an incoming call for
the mobile, the HLR is interrogated about the present address of the VLR.
Home Location Register, HLR
A database that contains all data concerning the subscription of the mobile subscriber, i.e. their
access capabilities, subscribed services, and supplementary services. It also contains information
about the VLR that is handling the mobile station currently. When the mobile changes location,
the HLR is updated accordingly. It also provides the MSC with information about the MSC area
where the mobile is actually located to allow incoming calls to be routed immediately to the called
party.
Authentication Centre, AUC
Stored information that is necessary to protect communication through the air interface against
any intrusions. The legitimacy of the subscriber is established through authentication and
ciphering, which protects the user information against unwanted disclosure.
Equipment Identity Register, EIR
An option the network operator can use to enforce security. With this feature the network can
identify defective or stolen mobile that may not be used in the network.
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1.1 Subscriber Identity Module (SIM)
SIM is a smart card, which has a computer, and memory chip that is permanently installed in the
mobile equipment. It comes in either the size of a credit card or smaller version known as the
plug-in SIM.
The subscriber information, which includes a unique number called the International Mobile
Subscriber Identity (IMSI), is stored in the SIM card. SIM card identifies the subscriber to the
network.
To protect the SIM card from improper use, a security feature, a four digits personal identification
number (PIN), is built in. The PIN is stored in the SIM card and can be changed by the
subscriber. PIN2 is required for additional functions available with a special SIM card (Consult the
operator for more information about the PIN 2).
A code (PUK) is provided for unlocking the SIM card if the SIM card is blocked
Extended GSM 900, E-GSM
This is a new standard that allows Network Operators to increase their capacity through an
extended frequency. The frequency range of E-GSM is as follows:
· Mobile Transmit: 880,2 - 914,8 MHz
· Mobile Receive: 925,2 - 959,8 MHz
X3 is a GSM Phase 2 / Phase 2+ Dual band E-GSM900 / GSM 1800 mobile phone.
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2 Key Features
General:
Power
Battery
Charging
· Modern design; Retro-futuristic, Sleek and Pure
· Valuable looking finishing; Navikey, lacquered and plated details
· Pictures and Melodies
· EMS
· Voice and one key controlled
· Screensaver
· Silent Alert
· EGSM 900: Class 4 (2W)
· GSM 1800: Class1 (1W)
· Li Ion Battery Pack (Integrated in the rear part)
· Nominal Capacity: 620mAh
· Cut-off Threshold : 3.7V
· Max. 4 hours for empty battery (0-5% capacity)
Stand-by Time
Talk Time
SIM Card
Speech Coder
Temperature Range
Display
Charging of deeply discharged battery is possible.
· Approx. >300 h / Li Polymer (Network dependent)
· Best case approx. : > 4 hours
· Small (=”Plug In”) 1.8V or 3V SIM card (Phase II)
· Full Rate, Enhanced Full Rate and Half Rate speech coders are
available as standard.
· -10˚C to +55˚C (Normal operation)
· -40˚C to +85˚C (Storage capability)
· Type: BW
· Resolution: 101 x 56 Pixel
· Technology: FSTN
· Graphic, Transflective, neutral, non-inverting paper white
background
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SIM Appl. Tool Kit
Voice Recognition
Keypad
Antenna
SMS
· One Navikey control (4-contact navigation key – 2 soft keys +
up/down)
· Integrated. Folded-inverted-F-Antenna
· Class 0, 1, 2
· GSDM TS 7.05 Short Message MT / MO
· Cell Broadcast
· Concatenated Messages / Picture Messages
· Release 98
· Speaker independent number dialling and speaker dependent name
dialling (up to 50 voice tags).
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