Siemens CL50 Service Manual

Local Service Organization Service Manual

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Table of Content

CHAPTER 1

Cellular Communication

Coverage Concept 1

GSM Network Architecture 2

Subscriber Identity Module 3

SIM Application Toolkit 4

Extended GSM 900 - EGSM 4

WAP 5

CHAPTER 2

Level 2 Service Guide 6

Introduction 6

General Information 6

CL50 Series Technical Information 7

Accessories 10

CL50 Mechanical Diagram 11

Mechanical Concept 12

Hardware Concept – Block diagram 13

Hardware Description 13

Power Supply Concept 15

Battery Charging 16

CL50 Spare Parts Level 1 & Level 2 19

Disassemble the CL50 20

Assemble the CL50 24

Mobile Software Programming 30

Language Groups 34

Customer Specific Initialization 34

International Mobile Equipment Identity 34

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Cellular Communication

Coverage Concept.

he cellular systems is 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 Center(MSC) which performs the switching of calls between the mobile users, and between mobile and fixed network users.

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 Center, 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.

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

SIM Application Toolkit

This is a new GSM feature that has been integrated into the GSM standards in Release 96, with further enhancements added as part of the Release 97 feature set. This feature came about because of a desire by Network Operators to offer differentiated services, without the need for the Mobile Manufacturers having to build different variant for different customers. The unique service offered by the Operator is placed as an application on the SIM and that could work on any mobile that supports the Toolkit feature.

There is a distinct set of commands between the mobile and the SIM specifically for the Toolkit that allows the SIM Toolkit and the mobile to communicate independently of the GSM communication between the SIM and the mobile. Henceforth, the SIM Application Toolkit and GSM functionality on the SIM are separated logically. The Toolkit can interact directly with the mobile itself and adding itself to the mobile menu.

Currently, Toolkit application on the SIM and its “other half” communicate by using the Short Message Service(SMS). “Proactive SIM” is a mechanism whereby the SIM can initiate actions to be taken by the mobile. These actions include:

· Display text from the SIM on the Mobile display

· Send short message

· Set up a voice call to a number held by the SIM

· Set up a data call to a number and bearer capabilities held by the SIM

· Send a Supplementary Service (SS) control or Unstructured Supplementary Services Data

(USSD) string

· Play a tone in the mobile’s ear piece or ringer

· Initiate a dialogue with the user

· Provide local information from the mobile to the SIM.

· Data download to the SIM from network

· Call control by the SIM.

SIM Applications Toolkit (SAT) allows the flexibility to update the SIM, to change the services and download new services over the air. In the SAT specification, the short message service is a key mechanism for personalizing the SIM in each user’s GSM phone. It is designed as a client-server application. CL50 supports SAT Class 3 specification.

When active, the name of the service may appear in the menu, and there will be sub-menu if more than one application is active. Figure 1.4 is the SAT icon.

FIGURE 1.4 SAT ICON

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 – 915 MHz

· Mobile Receive: 925 – 960 MHz

CL50/8008 series is a GSM Phase 2 / Phase 2+ Dualband E-GSM / GSM 1800 mobile phone.

Wireless Application Protocol, WAP.

Wireless Application Protocol takes a client-server approach that uses the in-built micro-browser to make a request, in wireless markup language (WML), for information or service. The request is passed to a WAP Gateway, which then retrieves the information from a Internet server, in HTML format, and translate it into WML. The requested information is then sent to from the WAP Gateway to WAP client (mobile) using the available and most appropriate mobile network bearer services.

Wireless Protocol Stack.

Wireless Application Environment (WAE) Wireless Session Protocol (WSP) Wireless Transaction Protocol (WTP) Wireless Transport Layer Security (WTLS) Wireless Datagram Protocol (WDP) Bearers e.g. Data, SMS, USSD

TABLE 1..1 WAP PROTOCOL STACK

1. Wireless Application Environment

Defines the user interface on the phone. WAE contains the WML,WML script and the wireless telephony application (WTA).

2. Wireless Session Protocol

Link the WAE to two session services – one connection oriented operating above the WTP and a connectionless service operating above WDP.

3. Wireless Transaction Protocol

Runs on top of the datagram service and part of the standard suite of TCP/IP protocols, to provide a simplified protocol suitable for low bandwidth mobile station.

4. Wireless Transport Layer Security

WTLS incorporates security features that are based upon the established Transport layer Security (TLS) protocol standard, that include data integrity checks, privacy on the WAP Gateway to client leg and authentication.

5. Wireless Datagram Protocol

Allows WAP to be bearer independent by adapting the transport layer of the under-laying bearer. WDP presents a consistent data format to the higher layer on the WAP stack.

WAP Internet access via the CL50 is possible with the inclusion of Wireless Application Protocol (WAP) browser 1.2.1.

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Level 2 Service Guide

Introduction

The chapter is intended to help you carry out repair up to Level 2 on the CL50 series mobile phone.

General Information

CL50 is a dual band (GSM 900 and GSM 1800) Siemens GSM clam shell.

Due to different requirements of the markets, the CL50 has different variants, which broadly classified under International version and Asian version. Marketing name for international version is CL50, whereas Asia version is 8008. The CL50 and 8008 share the same phone accessories.

All repairs have to be carried out in an environment set up

according to ESD regulations defined in international standards.

ESD procedure is available from your Service Manager. Ask for

ASC/T001/98

CL50 Technical Information

Spec. Desc.

· EGSM-900 (880MHz – 960MHz).

Frequency

Power

Antenna

WAP

Message

SIM Support

Display

Backlight

LED

· GSM-1800 (1710MHz – 1880MHz) also called DCS-

1800.

· EGSM-900: Power class 4

· GSM-1800: Power class 1

External Type

Version 5.0

SMS, EMS Support

· Plug in card 3V

· STK (SIM Application Tool Kit)

Class II & Class III Send USSD command

(Chinese supported)

· Internal & extermal LCD：Blue

· Keyset：Orange

· Red color is reserved for no network

service. It shall blink every 3 seconds

Internal LCD

External LCD

Status LED

· Green color is for:

· Network service available at idle mode.

It shall blink every 3 seconds

· Any call. It shall blink every 1 second

1. LED does not blink when call in progress

· High Resolution Graphic

· 3 lines, 112 x 64 pixel

· 4 level Gray Scale

· High Resolution Graphic

· 1 lines, 96 x16 pixel

· 4 level Gray Scale

5mm x 1mm status LED light will be placed on the top of the housing, near the antenna

Physical Details

Dimension 73mm(L) x 39mm(W) x 22mm(D)

Volume 53 cc (approx)

Weight 80g (approx)

· 2 side keys

· 2 function keys (Send, Power / End)

Keypad

Decorate Hook

Temperature Range

Power

Battery

Consumption

· 2 multifunctional softkeys

· 4-Way Navigation keys

· 12 numeric keys (10 numeric,*, #)

There must be a hook hole in the housing so that consumer can tie a string to it for hanging the phone around the neck.

· -10 oC to +55 oC for normal operating

· -40 oC to +85 oC for storage

600 mAh Li-ion Battery

· Min stand-by time 220 hrs(*)

· Min talk time Best Case (DTX off, GSM900, PL19) = 3.8

hrs(*)

· Min talk time Best Case (DTX on 40%, GSM900, PL19) = 4.5 hrs(*)

· Based on Siemens measurement method and procedures

(*): Actual time depends on the network

Charging

Maximum charge time for empty battery (0-5% capacity) is 2 hours for standard charger and via battery charging station

Audio

Ringer On/Off/Beep

Melody 20 embedded + 10 download + 3 compose

Melody Type YAMAHA SMAF MA1

Key tones Click/Tone/Silent

Info tones On/Off/Extended

Speaker Volume Adjustable in 4 levels during call via volume keys

Silent Alert Built-in vibrator

Setting

User profiles Normal/Quiet/Noisy/Headset/Aeroplane mode/2 Empty

Group Friends/Colleague/Family/Biz Partner/VIP

Wallpaper 3 default + 2 customized + OFF

Answer Mode Any key/Key Tones/Flap

Security Codes/Only >FDN> (Operator support)/This SIM only

Other Feature:

ü Up to 50 coming/sending messages can backup from SIM card to CL50. ü Up to 100 records can be saved on CL50. ü Calling melody by group or person (2 ü Own greeting text ü Intelligent Typing (T9)+Libraries ü Two city clock ü Alarm/Date ü Diary ü Mobile Internet Access ü SMS to group

priority, only apply to address book)

Accessories:

Accessories

1BC9ZZZFX01 Standard Charger 1BC9ZZZFX19 Battery only Charger 1BTCZZZFX05 Battery, Li (3.7V, 600mAh)

Note: Item highlighted in italic is Quanta Part number for Siemens.

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