Siemens C35 Service Manual

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Local Service Organization Service Manual

C 3 5 S e r i e s

S I E M E N S C O M M U N I C AT I O N S U N L I M I T E D

V1.0

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Table of Content

C H A P T E R 1

Cellular Communication

Coverage Concept 1

GSM Network Architecture 2

Subscriber Identity Module 3

SIM Application Toolkit 4

Extended GSM 900 - EGSM 5

Built-in Modem 5

Data Application 6

C H A P T E R 2

Level 2 Service Guide

Introduction 7

C35 Series Technical Information 8

Accessories 10

General Information 11

C35 Series Exploded Diagram 13

Mechanical Concept 14

Hardware Concept – Block diagram 15

Hardware Description 16

Power Supply Concept 18

Over voltage Condition 18

Battery 19

Short Circuit Protection 19

Charging 19

Deep Discharge Battery 20

C35 Spare Parts Level 2 21

Disassemble the C35 22

Disassemble/Assemble Lower Housing 24

Disassemble/Assemble Control Board Assy 25

Disassemble/Assemble Upper Housing 27

Assemble the C35 28

Mobile Software Programming 30

Language Groups 32

Customer Specific Initialization 34

International Mobile Equipment Identity 34

Phone Unblocking 35

C H A P T E R 3

Siemens Service Equipment

Introduction 37

Other equipment 39

Software Installation 40

Configuring the test software 41

Running the test sequence 42

ANNEX A 46

ANNEX B 49

C H A P T E R 4

Level 2.5 Repair Document

Introduction 50

Antenna Connector 51

Ringer 55

Bottom Connector (Lumberg) 58

Display Connector 62

Keyboard LED 66

Display LED 69

Infrared Diodes 73

ANNEX C

PC Adapter Cable & Accessories C35 76

Power Plug for C35 77

Car installation Ratio Unit, C35 78

Car Installation kit Handfree kit 79

Car Installation kit Handfree Pro. 80

Car Installation Comfort GPS, C35 81

References 83

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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.

V1.0 iii

Chapter

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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.

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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.

FIGURE 1.3 INSERT SIM CARD

Figure 1.3 illustrates the steps for inserting the SIM card into the C35 series.

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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 card and can be changed by the subscriber. PIN2 is required for additional funtions available with a special SIM card (Consult the operator for more information about the PIN.

A code (PUK) is provided for unlocking the SIM card if the SIM card is blocked

Change PIN Procedures.

CHART 1.1 PIN CONTROL

SIM Application Toolkit

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 clientserver application. C35 series supports SAT Class 3 specification.

°

SETUP

SECURITY

CODES

CHANGE PIN CHANGE PIN2

{ENTER PIN NUMBER}

CHANGE

{ENTER NEW PIN} AND PRESS OK KEY.

{ENTER NEW PIN) AND PRESS OK KEY.

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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 1.6 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

C35 series is a GSM Phase 2 / Phase 2+ Dualband E-GSM / GSM 1800 mobile phone.

Built-in Modem.

C35i has an integrated modem for direct data communication using the data cable as shown in Figure 1.5. C35 do not have the built-in soft modem for Data Service of GSM network.

FIGURE 1.5 DATA CABLE.

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Data Application Support

Modem driver conforms to V.25 command set, and transmission speed conforms ITU-Tstandard of V.22bis. (2400, 4800,and 9600 bits/sec).

Facsimile conforms to Service Class 1, group 3 and operate at 2400, 4800, 7200 and 9600 bit/s.

Data services via GSM network up to 9600 bps, and remote control using cellular AT commands for C35i only.

Internet access via the C35i is possible with the inclusion of Wireless Application Protocol (WAP) browser 1.1 .

Level 2 Service Guide

Introduction

The chapter is intended to help you carry out repair up to Level 2 on the C35 series mobile phone.

The repair for international version and Asian variants are identical unless otherwise noted, therefore the description herein is confined to C35 only.

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

Chapter

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C35 & C35i Technical Information

System GSM Phase 2/Phase2+, Dual Band

EGSM 900, Class 4(2 Watt) GSM 1800, Class 1(1 Watt)

Operating Voltage 3.6V

Size(LxWxH) 118 x 46 x 21 mm(without antenna)

Volume 88cm3 including battery (approx)

Weight 116g including battery (approx)

Battery(Standard) NiMH, 500mAH(Standard)

Li-Ion, 600mAH(Optional)

Standby time

50 to 180 hours (standard battery)

Talk time

90 to 300 minutes (standard battery)

Charging Time Up to 1.5 hours with Rapid Charger

SIM support Plug in card 1.8 V or 3V

Antenna Non - retractable, λ/2, helical fixed.

Speech codec Triple rate Enhance Full Rate

Full Rate Half Rate

Display 101 x 54 pixel graphical display with up to 5 lines

12 x 12 font size for Chinese

Keypad 12 numeric keys(10 numeric, #, *)

4 function keys(Send, End-ON/OFF, Menu, Phonebook) 2 multifunctional softkeys

Key Sound Click/DTMF/None

Key Lock Activation and Deactivation by #-key or

Automatic.

Actual time dependent on the network.

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Dialing 10 redial numbers,

Last 10 incoming with date/time stamp Last 10 outgoing calls Last 10 missed calls with date/time stamp

Ringer On/Beep/Off

Up to 22 melodies and 5 ringing volume settings (Melody Composer, Crescendo Ringing)

Volume Adjustable in 4 levels during call via softkey

Silent Alert Built-in vibrator

Phone Book Storage depends on the SIM card capacity

Storage of up to 100 list in the phone (VIP)

SMS Support MT, MO, CB

Predictive Text Input, Tegic T9.

Supplementary Call Forwarding, Call Hold, Call Wait, Services Multiparty Conference, CLIP, CLIR, AoCC

AoCI, FDN, LND USSD and SAT.

Ciphering A5/1 and A5/2 supported

PIN control PIN 1 & 2 Code Control

Phone code 4 to 8 digit code

Network function Automatic and manual network selection

Chipset Siemens E – GOLD

WAP Browser

Version 1.1

Other Features Clock / Alarm

Alarm List

Built-in modem

Calculator

Currency Converter 4 Games 7 User Profiles

Only for Model C35i.

Not available in C35 International version.

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Accessories:

1. Standard Battery L36880-N4001-A100

2. Optional Battery L36880-N4001-A101

3. Standard Charger L36280-Z4-CXXX (Country Variant)

4. Travel Charger L36880-N4001-A103 (EU) / A104 (UK) Similar to standard charger with an universal input voltage from 90 ~ 240V

4. Desk Top Charger L36880-N4001-A102

5. Belt Clip L36880-N4001-A113

6. Headset L36880-N4001-A123

7. Antenna Cradle L36880-N4001-A110

8. Car Charger Cable L36880-N4001-A108

9. Car Kit Portable

L36880-N3015-A117

10. Car Kit Comfort L36880-N4001-A111

11.Car Handset

L36880-N3015-A123

12. Designer Cases L36880-N4001-A119

13. Soft Data Link 3.0 L36880-N4001-A122 (Not for 3508i)

14.Data Cable

L36880-N3101-A102

15. Car Kit Professional Voice L36880-N4001-A124

16.Data Cable Professional

L36880-N3101-A112

Same as C25(88)

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General Information

Due to different requirements of the markets, the C35 series has different variants, which broadly classified under International version and Asian version. Marketing name for international version is C35 or C35i, whereas Asian version is named 3508 or 3508i.

The 3508 series is equipped with a graphic display which enable the telephone to display CHINESE characters, either in Traditional font or Simplified font, beside the standard English.

Difference between C35(08) and C35(08)i

C35(08)i mobile software has WAP Browser 1.1 incorporated thus enabling user to surf the Internet and it have built-in soft modem for GSM Data Service.

The differences between the C35 and C35i are the hardware and software. The memory size of C35 is 16MB and that of C35I is 32MB.

There are also two variants for 3508, one without the WAP browser is 3508 and that with WAP browser version 1.1 is 3508i. The different for ASIAN version is only mobile software.

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).

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2. Wirelss 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.

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C35 Series Mechanical Diagram

FIGURE 2.1 C35 MECHANICAL DIAGRAM.

Please take note that the number(s) used here IS NOT the part

number, DO NOT used it in your spare parts purchase order.

A l w a y s r e f e r t o th e S E R V I C E P A R T P R IC E L I S T

f o r y ou r s pa r e p a r t o r d e r .

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Mechanical Concept

Note: All numbers refer to mechanical drawing in Figure 2.1.

The mechanical concept of the C35 differs in various points from the one of the other Siemens mobile telephones.

The first thing you will experience is how the housing is locked. In C35 no screws are used to keep the housing closed. Also inside the telephone no screws are used anymore. To open the housing, which is kept closed by catches only, a special opening tool has been defined. For details on disassembly tool please refer to Photo 2.3 in this chapter.

Inside, the C35 consists of just one board (1010) which carries display module(1170), control part and RF section of the mobile.

The display module (1170) is connected to the board by a flexible cable which is inserted into a plug. In case the display is defective electrically or mechanically it can be exchanged very easily.

C35 does have an external connector of a new type. Since S6 a so called “Molex”-connector was used, which also offered the possibility to connect an external antenna to it. The new “Lumberg”-connector which is used in C35 does not feature such a connection, because the connector for external antenna is located at the back side of the upper end of the mobile, close to the internal antenna (1130). As a consequence of this there is no need anymore for a RF cable mounted to the board nor for a RF plug on it to connect this cable. This improves RFproperties of the mobile and lowers production costs.

To be able to do measurements on and software update of the telephone, an adapter cable between Molex and Lumberg connector will be available. See photos in Additional Tools of Chapter 3.

C35 series antenna is of a snap-in type which inserted into the lower case shell (1030). The antenna can only be changed by opening up the C35 phone.

The C35 is a dual-band mobile operating on GSM900 and

GSM1800, the antenna is an integral part of the lower housing.

The keypad (1150), the microphone (1110) and the loudspeaker (1120) are mounted into the upper case shell (1020). Make sure that the microphone and the earphone contact springs are not dirty or damaged during repair process.

The dust protection frame and the display window are included in the display module(1170).

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Hardware Concept – Block Diagram

FIGURE 2.2 C35 BLOCK DIAGRAM.

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Hardware Description

The handset consists of the following major integrated circuits:

1) E-GOLD – PMB2851E

This IC is a combination of microprocessor, signal processor and real-time clock.

The microprocessor part of this component is responsible for controlling the keyboard, SIMCard, Flash and RAM. Furthermore it controls the power saving, power up/power down of the RF module and sets the amplification of the PA.

The signal processor part of PMB 2851E is responsible for processing the Rx I/Q signals (filtering, equalizing, speech and channel decoding). Furthermore it does the speech and channel encoding and the GSMK modulation of the Tx I/Q signals. The Voice CODEC part is used to realize advanced features regarding coding of the speech signal. These are:

• Halfrate-Encoding

• Halfrate-Decoding

• Enhanced Fullrate Encoding

• Enhanced Fullrate Decoding

• Voice Activity Detection

• Comfort Noise

2) GAIM – PMB2906

The GAIM (GAIM = GSM Analog Interfacing Module) provides the interface between the analogue and its digital representation signals (Base-band I/Q, Voice-band, PA-control, Voltage & Temperature Measurement - Charging control).

3) 13Mhz Ref Oscillator Circuit -

This circuit provides the following main functions:

• Generate 13Mhz clock signal for Logic Circuits – SIN13M.

• Generate 13Mhz reference signal for the PLL circuits for the Tx & Rx of GSM RF signal.

• Received the frequency steering control AFC_PNM from the HiGOLD IC for fine tuning

of the Tx & Rx frequency.

• Temperature dependent resistor sited near the 13MHz oscillator measure the

environment temperature.

4) Power Supply ASIC – D0767BA

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This circuit provides the following main functions:

• Control of switch on of the Mobile phone by ON/OFF button, Ext Power (Charger) or real

time clock.

• Watchdog monitor – switch off the mobile phone if no proper Watchdog signal send from

HiGOLD IC.

• Voltage supply to the logic circuits – 2.90V, 2.65V & 1.92V, Simcard & real time clock in

HiGOLD IC.

• Switch on the linear regulator to supply the 2.8V for the13Mhz Oscillator circuit.

• RESET signal for the logic circuit.

• Charge control signal for switching the charge FET.

• Low battery detector.

• Over voltage protection.

5) Receiver Circuit – Bright II HD155124F

This circuit provides the following main functions:

• Low Noise Amplifier (LNA) with a fixed amplification of +20dB to amplify the input RF

signal.

• Mixer to mix down the RF signal to the Intermediate Frequency (IF)

• Programmable IF amplifier with a dynamic range of 60dB ( -10dB ~+50dB in steps of

2dB).

• Mixer to mix down the IF signal to the baseband, generating and inphase (I) and a

quadrature (Q) signal and feed the GAIM IC base-band signal, RX I/Q for the decoding of the digital signal for the HiGOLD IC.

6) Transmitter Circuit – Bright II HD155124F

The GAIM IC generate the MOD I/Q base-band signal under the control of the HiGOLD IC and feed the IQ modulator of the Bright II IC. The Bright II IC provides the IF synthesizer, the I/Q modulator, prescaler to regulate the dual-band TX-VCO and feed the modulated GSM signal to the PA.

The telephone support only 1.8V and 3V SIM card

For user with 5V SIM card, he need to upgrade the SIM card

through his service provider/network operator

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Power Supply Concept

The C35 has two main power inputs:

1. Battery voltage(3.6V) connected at the battery contact

2. Charging voltage(6.5V) delivered by the different charger type(see Accessory List) via the Lumberg connector at the bottom of the telephone.

Since the battery voltage is supplying the power supply ASIC, it is always needed to operate the phone. You cannot switch on the handset if the battery voltage is not present.

From the battery voltage, all other supply voltages are derived and controlled by the power supply ASIC.

The RF power amplifier is directly connect to the battery, a bad battery with high internal resistance can cause malfunction of the C35 phone.

The Logic module uses 1.92V, 2.65V & 2.9V generated by voltage regulators inside the ASIC.

Furthermore, the ASIC generates the supply voltage for the SIM card and the RESET signal for the logic devices.

The ASIC also checks the presence of the watchdog signal from the microprocessor and provides the switching on functionality (ON_OFF button or Ignition signal).

Wrong polarity or battery voltage setting that exceed the +6.5V

could damage the phone.

Over-voltage Condition

• Battery voltage

If the supply voltage rises above 6.2V, the phone will switch off and it cannot be switched on again before the voltage is lower than 6.2V.

If the supply voltage rises above 7V, the phone can be damaged

• Charging Current

The charging current must not rise above 1A or a track fuse in the phone will blow. As a result charging the battery will no longer by possible.

Be careful with NON-original SIEMENS accessories or chargers.

Make sure that the charging current is limited to value below 1A.

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Battery

C35 series uses a Nickel Metal Hyride (NiMH) 500mAH battery pack as standard battery. It also support the Lithium Ion 600mAH battery pack (For S35i phone) as optional battery for customer want longer talk time.

PHOTO 2.32 C35 SERIES INSERTING BATTERY.

For C35, BATT+ has a voltage level from +3.0V to 5.5V, and a BATT_TEMP contact is used for detecting abnormal increase in temperature of the battery.

If the temperature is too high or too low, there is a high probability

that the battery is not charged. To enable the charging process

again, battery and phone needs to cools down or warm up. Battery

replacement is not required.

A v o i d s h o r t i n g t h e b a t t e r y t e r m i n a l s .

Short Circuit Protection

For the Nickel Metal Hydride battery, a polyswitch in the battery pack protecting the battery from short circuit and it should reset by itself after some time removing the short circuit.

For the Lithium Ion battery, it is short-circuit protected by an electronics fuse. The fuse will be activated in case a too high current is drawn. This fuse will not reset automatically.

The resetting of the L-ion battery fuse can be done with either of the following procedures:

1. Insert the battery into the C35 and then connect the rapid charger to the phone. Wait for approximately 10 second, then the mobile can be turned on again.

2. Plug the battery separately into the desktop charger. The fuse is reset immediately.

3. Insert the battery into the C35 and put the phone into the desktop charger. Wait for approximately 10 second, then the mobile can be switched on.

Charging

The battery can be charged when it is inserted into the phone. The charging process is completely controlled by the mobile. Charging can be done with any of the following accessory:

1. Rapid charger

2. Travel charger

3. Car charger

4. Desktop charger

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PHOTO 2.33 INSERT CHARGER

Photo 2.33 shows the correct way of inserting and removing the charger plug.

Deep Discharge Battery

In case of a deeply discharged battery, the voltage of the battery is too low to operate the charging circuit and the display controller, the phone can not be turned on and the normal charging process can not be started. No charging symbol is visible in the display.

In this case, charging the battery is divided into two different steps, which have to be run subsequently:

a) Trickle charge for C35 Phone

Trickle charge mode is automatically started if the battery voltage is below 3.0V when the charger is connected to the mobile. The charging current in Trickle mode is appr. 10mA.

Trickle charge mode has to last minimum until the battery voltage has exceeded 3.2V, then the phone will switch on and the charging icon appear. During trickle charge the charging symbol will not be visible and the telephone can not be turned on. This is because the battery voltage is too low to operate the telephone.

Action:

Insert battery into handset and connect travel charger to the telephone. If within 4 hours the battery voltage is high enough again, the charging symbol will come up.

If the battery is discharged very deeply, the symbol may not come up and the trickle charge time possibly has to be extended up to 24 hours.

b) Normal charge

When the battery voltage is above the a.m. value (e.g. by trickle charge) the mobile will start the normal charging mode and show a charging symbol in the display. * Always normal charge a new battery or a deep discharged battery for more then 12 hours before first use.

Action:

Connect charger to the telephone (see section on Charging).

The charging symbol will come up as an indication that the normal charging process has been started by the mobile.

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Mobile Phone C35 Spare Parts Level 2

SIM Card Reader with

Card Holder L36334-Z97-C111

SIM Card Holder L36334-Z97-C112

Display module L36851-Z1508-A51

Keypad L36158-A33-B75

Microphone L36254-Z6-C82

Upper Case Shell

L36158-A33-B....

Antenna L36158-A33-B161

Vibra-Alert Unit L36453-Z5-C77

Battery Contact Spring L36334-Z97-C113

RF Control Board L36880-Q4050-B201

Buzzer Sealing L36158-A33-C260

Display Cover L36851-A33-C101

Display Sealing L36158-A33-C103

Earphone L36212-Z3-C34

Battery Cover

L36158-A33-B....

Battery NI-MH L36145-K1310-X125

Lower Case Shell

L36880-A33-B....

L36158-A33-B....see Spare Part

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Disassemble the C35

A case opener is needed to disengage the latch of the C35 casing.

PHOTO 2.3 C35 CASE OPENER

The part number for this mandatory tool is F30032-P46-A1

Refer to ANNEX B of Chapter 3 for Service Equipment List.

STEP 1:

Remove the battery cover then the battery as shown in PHOTO 2.4

PHOTO 2.4 DISASSEMBLE C35 – STEP 1

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STEP 2:

Open the housing with the opening tool and carefully pull the lower housing section off as illustrated in PHOTO 2.5

PHOTO 2.5 DISASSEMBLE C35 – STEP 4

STEP 3:

Use the Case Opener carefully disengaged the catches of the Lower housing and Upper housing to separate the housing and the Control Board Assembly as in PHOTO 2.6

PHOTO 2.6 DISASSEMBLE C35 – STEP 3

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Disassemble/Assemble of the Lower Housing Assembly

STEP 1:

Open the housing with the opening tool and carefully pull the lower housing section off as illustrated in PHOTO 2.7

PHOTO 2.7 Lower Housing Assy – STEP 1

STEP 2:

Remove in sequence by hand the SIM Card Holder, SIM Card Reader, Battery Contact Spring, Vibra-Alert Unit and the Antenna as illustrated in PHOTO 2.8

PHOTO 2.8 Disassembly Lower Housing – STEP 2

For Remove/Install the Antenna, watch out for the two catches on the Lower Housing. For install of the other parts, watch out for the guide notches. For the assembly of the Lower Housing just reverse the sequence for the disassembly.

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Disassemble/Assemble the Control Board Assembly

STEP 1:

Open the housing with the opening tool and carefully pull the lower housing section off as illustrated in PHOTO 2.9

PHOTO 2.9 Control Board Assy – STEP 1

STEP 2:

Unlock the catches of the Display Module from the Control Board and move the display module to the lower part of the PCB. Lift up carefully the retaining clip of the display connector on the Control Board as illustrated in PHOTO 2.10

PHOTO 2.10 Disassemble Control Board Assy – STEP 2

STEP 3:

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Remove the Display Module and the Buzzer Sealing from the Control Board as illustrated in PHOTO 2.11

PHOTO 2.11 Disassemble Control Board Assy – STEP 2

For Remove/Install the display module, watch out for the catches on the display module and the guide hole of the PCB. For the assembly of the Control Board assembly just reverse the sequence for the disassembly.

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Disassemble/Assemble of the Upper Housing Assembly

STEP 1:

Open the housing with the opening tool and carefully pull the lower housing section off as illustrated in PHOTO 2.12

PHOTO 2.12 Upper Housing Assy – STEP 1

STEP 2:

Remove the Keypad by hand and use a fine point metal tweezers to remove the microphone as illustrated in PHOTO 2.13

PHOTO 2.13 Disassemble Upper Housing – STEP 2

The loudspeaker is glued to the upper housing section by a foam covered with glue on both sides. When you remove it, the foam will be damaged. Please use new loudspeaker for assembling Upper Housing Assembly.

For assembly of a new Upper Housing install a new earphone first, watch out for the orientation. For install of the other parts just reverse the sequence for the disassembly.

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Assemble the C35

STEP 1:

Check that the Lower Housing Assembly, Control Board Assembly and Upper Housing Assembly are in good order. Check if the Buzzer sealing was installed on the Control Board.

N e w U p p e r a n d L o w e r C a s i n g m u s t b e u s e d . A l l c o n t a c t p i n s m u s t n o t b e d i r t y , d a m a g e d o r b e n t !

I f a n y p a r t i s n o t O . K p l e a s e r e p l a c e i t w i t h a

n e w p a r t .

STEP 2:

Place the Control Board Assembly in the Lower Housing Assembly and then place the keypad on top of the Control Board as illustrated in PHOTO 2.15. You may insert a battery in this step to test that the phone can be switch on.

PHOTO 2.15 ASSEMBLE C35 – STEP 2

STEP 3:

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Close the device by putting on the Upper casing section as illustrated in PHOTO 2.16. Hold the phone and use both hands to close the casing starting from the catches at the top part near the antenna, watch out for leaving any finger marking on the display screen.

D o n o t p l a c e t h e p h o n e o n t h e

t a b l e t o c l o s e u p t h e h o u s i n g a s

t h e A n t e n n a m a y b e d a m a g e .

A L L C A T C H E S M U S T E N G A G E

C O M P L E T E L Y !

PHOTO 2.16 ASSEMBLE C35 – STEP 3

STEP 4:

Remove old IMEI label from the old housing using a hair-dryer for re-use of the IMEI label or paste the new IMEI label supplied for control board replacement. Insert the battery and put back the battery cover. Ready for testing.

PHOTO 2.17 ASSEMBLE C35 – STEP 4



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Mobile Software Programming

Model before C25 and C35, software used for the mobile are similar except for their differences in the language group. Customer specific values (e.g. ringing tones etc) are seldom, but there were some, were included in the common mobile software.

C25 and C35 has changed. There is still a common mobile software available which is divided into language groups. However, this software does not contain the specific settings, such as ringing tones, greeting text, short dial list etc., required by the operator(s) or service provider(s). Therefore, it is not uncommon to have some menu item(s) differ in different variants or are not visible at all. These settings are stored in different memory area of the mobile and will be activated depending on the customer specific model or variant of the phone by a separate test step during the production process.

Due to this separation of common mobile software and customer specific initialization, it is possible to fulfill the demands of the market requiring customization and flexibility.

As a consequence the software programming process in the LSO is divided into two different steps as followed:

1. Software update to actual version and appropriate language group

2. Programming of CUSTOMER SPECIFIC INITIALIZATION

Mobile Software Updating

The software of the mobile, C35 series, is loaded from a PC directly. Hardware interconnection between the mobile and the PC is shown in Figure 2.6

FIGURE 2.6 C35 SERIES SOFTWARE PROGRAMMING SETUP

Because of the new type of external connector used in C35 (Lumberg type) an additional adaptor cable between mobile and boot adaptor is required. Table 2.1 listed all the hardware requirements

Page 32

If you use the C35 battery dummy, then make sure that the power supply voltage is correctly adjusted 4.0V & 3A current rating.

Description Part No.

Adaptor-Cable-Bootadaptor, C35/C35 V30146-A5004-D Boot Adaptor L24857-F1006-A30 IBM Compatible PC – Pentium -

TABLE 2.1 EQUIPMENT LIST FOR SOFTWARE PROGRAMMING.

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SOFTWARE IS A DOS-BASED PROGRAM, IT IS ADVISABLE TO DO THE SOFTWARE UPGRADE IN DOS ENVIRONMENT.

Languague Groups

There are over 20 languages for the C35i series in total. These languages are divided into groups as follows

C35i / 3508i

Group

Languages

English, German, French, Italian, Dutch, Swedish, Finnish, Norwegian, Danish.

English, German, French, Italian, Spanish, Catalan, Portugese, Dutch.

English, German, Hungarian, Polish, Russian, Bulgrian, Czech, Slovakian.

English, French, Italian, Arabic, Greek, Turkish, Hebrew, Bahasan Malaysia, Bahasan Indonesia.

English2, Chinese Simplified, Chinese Traditional.

Note: Tegic- T9 Input method support in for the languages BOLD.

TABLE 2.2 SOFTWARE LANGUAGE GROUPS.

T h i s i n f o r m a t i o n i s s u b j e ct t o c h a n g e !

Contact your Service Manager for the order number of the right version of mobile software for your market.

The mobile software file is named using this convention:

e.g. C3i_0501  Version = 05; Language Group = 1

C3i_0506  Version = 05; Language Group = 6.



C35_(Version)(LG).EXE



Page 34

This executable file needs a definition or init file, named SWUP.INI, to define the message language preferences and the hardware communication port set up. The content of this file consists of the following text:

Where x is the number that corresponds to the serial port that is used, either 1, 2 or 3.

Flow chart 2.1 illustrates the software programming process.

FLOWCHART 2.1 SOFTWARE PROGRAMMING. PROCESS

Yes

YesNoNo

Yes

YesNoYes

Plug in the Boot Adaptor to the PC and Mobile

Connect the AC adaptor to the Boot Adaptor

Power up Boot Adaptor & Check LED

OK ?

Check AC Adaptor

OK ?

Faulty AC Adaptor

Faulty Boot Adaptor

Power up the PC in DOS environment

Execute the “Mobile S/W”

Error ?

Check H/W setup = S/W settings.

OK ?

Software upgrading in progress

Correct settings.

Error ?

Test Mobile

Take note of error and repeat process again

Feedback Error to ICP CD ASC

END

Language=English COM=x

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Customer Specific Initialization

Refer to the Customization Guide

L S O h a s t o m a k e s u r e t h a t a f t e r r e p a i r th e

c u s t o m e r g e t s t h e m o b i l e w i t h c o r r e c t v a r i a n t

s p e c i f i c i n i t i a l i z a t i o n .

F o r m o r e i n f o r ma t i o n a b o u t t he c o n f i g ur a t i o n

t o o l , r e f e r t o S e r v i c e In f o r m a t i o n d a t e d 3 0

t h

A p r i l 1 9 9 9 , o r c on t a c t y o u r S e r v i c e M a na ge r .

International Mobile Equipment Identity, IMEI

The mobile equipment is uniquely identified by the International Mobile Equipment Identity, IMEI, which consists of 15 digits. Type approval granted to a type of mobile is allocated 6 digits. The final assembly code is used to identify the final assembly plant and is assigned with 2 digits. 6 digits have been allocated for the equipment serial number for manufacturer and the last digit is spare.

C35 series IMEI label is accessible by removing the battery. It is illustrated in Photo 2.18.

PHOTO 2.18 C35 SERIES IIMEI LABEL

Re-use of IMEI label is possible by using a hair-dryer to remove the IMEI label.

On this IMEI label, Siemens has also includes the date code for production or service, which conforms to the industrial standard DIN EN 60062. The date code comprises of 2 characters: first character denotes the Year and the second character denotes the Month. Fr example, the IMEI above show date code M1.

Year Date Code Month Date Code

1999 L December D

2000 M January 1 2001 N February 2

TABLE 2.3 DIN EN 60062 DATE CODE

p

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Phone Unblocking

When the phone is disable due to wrong entry of PHONECODE, it can be re-activated by entering the right unblocking code. This unblocking code is derived from the IMEI number of the mobile.

The unblocked code, also known as Master Phone Code, has to be entered in the following format:

* # 0 0 0 3 * - - - - - - - - #

The Master Phone Code can be obtained by:

1. Fax to Siemens Hotline in Germany

Siemens AG

ICP CD SH

World Service Center, Bocholt, Germany

+49-2871-91-3007

2. Fax to Siemens Hotline in Singapore

Siemens Advanced Engineering Pte Ltd ICP CD ASC

Ms Ginny Siew

+65-842-6641

3. Internet Solution

A password protected homepage where LSO can enter IMEI number of a disable phone. The generated Master Code will then be presented for unblocking purpose. This service is offered to all LSOs.

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PHOTO 2.19 INTERNET PAGE

PHOTO 2.20 INTERNET PAGE: MASTER PHONE CODE

Contact your Service Manager for more information regarding

setting up of the INTERNET SOLUTION & its installation

procedure, ASC/T002/98.



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Siemens Service Equipment

U S E R M A N U A L

Introduction

Every LSO repairing Siemens handset must ensure that the quality standards are observed. Siemens has developed an automatic testing system that will perform all necessary measurements. This testing system is known as

S i e m e n s M o b i l e S e r v i c e E q u i p m e n t

Using this system vastly simplifies the repair of the phones and will make sure that:

1. All possible faults are detected

2. Set which pass the test will be good enough to return to customer.

Starting from the P35 Series, Siemens will introduce a simpler and faster testing platform for testing a repaired Siemens mobile phone. The testing platform are either base on R&S CMD 53/55 or CTS55 GSM test set.

There is also test software under development for testing with the Wavetek 4201S and the 4107 GSM test set.

A Level 2.5 service software is also under development for more elaborate testing for the repair for the P35 series mobile phone.

THE LSO WILL HAVE TO PURCHASE THE SYSTEM, CHOOSING BETWEEN

THE COMPLETE PACKAGE OR SUB-SET OF IT.

A F U L L Y A U T O M A T IC T E S T P R O C E D U R E I S O N L Y

P O S S I B L E I F T H E C O M P L E T E S Y S T E M I S

I N S T A L L E D .

Make sure that your CTS firmware is Version 3.01 or higher. For CMD 55 it must be Version 4.03 and higher. Please check with the Service Info SB_0500 for the CTS/CMD Hardware Options.

Chapter



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R&S CMD55 Test Station

R&S CTS55 Test Station

Page 40

Wavetek 4201S Test Station

Other equipment

One Pentium MMX Window 95/98 PC with a serial port to connect to the GSM test set through the PC serial cable provided for the GSM test set.

One Test SIM card and a fully charged battery for used with the mobile phone model.

Additional RF connector will be needed for setup using Wavetek 4107 test set and Wavetek Antenna Coupler.

For LSO Test Station setup base on the Wavetek 4107 test set, you need a TNC(male) to SMA(female) connector. For the Wavetek Antenna Coupler, you need a TNC(female) to SMA(female) connector. The part number for the connectors will be announced soon.

For Wavetek GSM test set For Wavetek Antenna Coupler

Page 41

Software Installation

Before executing the test software, it is important to ensure that the software configuration matches that of the hardware set up. Each GSM Tester will have a specific test software. The

test software are name CMD_GO, CTS_GO and for Wavetek test set, CAT4200 respectively.

First, copy the installation software for the specific GSM tester to a temporary directory on the harddisk of the Window PC and then Run the Setup from the first sub directory – Disk1 for CMD_GO test software.

After the installation for the test software, RUN the Test software and check the configuration setting for the Serial port.

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Configuring the test software

For each model of the P35 series mobile phone, Siemens will distribute the testing configuration file for the specific test station. For testing the phone, just go to the File menu and select Load Configuration.

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Running the test sequence

Make sure that your CTS firmware is Version 3.01 or higher. For

CMD 55 it must be Version 4.03 and higher. Please check with the

Service Info SB_0500 for the CTS/CMD Hardware Options.

Insert a Test SIM card and a fully charged battery into the Siemens mobile phone and place it onto the phone holder on the Antenna Coupler. Switch the RF switch to INT ANT position and select the Start button to run the test sequence in the configuration file.

Follow the instruction on the screen and switch on the phone. The mobile phone will start Network Search and doing Location Update to the GSM test set through the off-air signal from Antenna Coupler.



Page 44

Next, the GSM test set will initial a call to the mobile phone through the Antenna Coupler. Press the Call key when the mobile phone ring, and the GSM test set will start Tx Power measurements on the GSM and GSM1800 channel specified by the configuration setting.

Next, the GSM test set will end the call to the mobile phone and the screen will prompt for Dialing from the mobile phone. At this test step, please move the mobile phone to the Antenna Cradle and switch the RF switch to EXT ANT position. Once the mobile phone log to the GSM test set, dial 1234 and the Send key.

Page 45

The GSM test set will make Tx Power measurements, Rx BER measurement, Echo Loop test on the GSM and GSM1800 channel specified by the configuration setting. There will be 2 Echo Loop Back test for checking the speech quality – one for GSM and one for GSM1800. Speak into the mobile phone when prompted and listen the voice after appr. 1 second and check the speech quality. If not O.K, it may be microphone or the earphone defective.

The last test is Disconnect Call from the mobile phone. Press the End Call key and the test sequence will end.

Page 46

A measurement report screen will show up and a hardcopy can be printed if a printer is connected to the PC. To close the measurement report screen, click the third button from the left.

Once the mobile phone pass all the test steps, please make a check for all the key and the display. After this we can confirm on the proper functioning of the mobile phone after repair and return the phone back to the customer.

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ANNEX A

Cable Specifications

1. PC to NGSM(Power Supply) Depending on the type of serial connector that is used by the PC. The cable layout for both 9pins and 25pin are listed below:

Computer:

Sub-D 25 pins

NGSM:

Sub-D 25 pins

TxD Pin 2 RxD Pin 3 RxD Pin 3 TxD Pin 2 RTS Pin 4 DCD Pin 8 DCD Pin 8 RTS Pin 4 CTS Pin 5 DTR Pin 20

DSR Pin 6 DTR Pin 20 DTR Pin 20 CTS Pin 5 DTR Pin 20 DSR Pin 6

GND Pin 7 GND Pin 7

TABLE A.1 D25 TO D25 CONNECTION

Computer:

Sub-D 9 pins

NGSM:

Sub-D 25 pins

TxD Pin 2 RxD Pin 3

RxD Pin 3 TxD Pin 2

RTS Pin 7 DCD Pin 8

DCD Pin 1 RTS Pin 4

CTS Pin 8 DTR Pin 20

DSR Pin 6 DTR Pin 20

DTR Pin 4 CTS Pin 5

DTR Pin 4 DSR Pin 6

GND Pin 5 GND Pin 7

TABLE A.2 D9 TO D25 CONNECTION

2. PC to CMD 53 or CTS 55

Depending on the type of connector used for the PC serial interface, two different type of cables can be used:

Computer:

Sub-D 25 pins

CMD / CTS:

Sub-D 9 pins

TxD Pin 2 RxD Pin 2 RxD Pin 3 TxD Pin 3 DSR Pin 6 DTR Pin 4 GND Pin 7 GND Pin 5

DTR Pin 20 DSR Pin 6

CTS Pin 5 RTS Pin 7 RTS Pin 4 CTS Pin 8

TABLE A.3 D25 TO D9 CONNECTION

Computer: CMD / CTS:

Page 48

Sub-D 9 pins Sub-D 9 pins

RxD Pin 3 TxD Pin 2 TxD Pin 2 RxD Pin 3 DSR Pin 6 DTR Pin 4 GND Pin 5 GND Pin 5 DTR Pin 4 DSR Pin 6 CTS Pin 8 RTS Pin 7 RTS Pin 7 CTS Pin 8

TABLE A.4 D9 TO D9 CONNECTION

3. PC to Adaptor Box

Computer:

Sub-D 9 pins

Adaptorbox:

Sub-D 9 pins

TxD Pin 2 RxD Pin 3 RxD Pin 3 TxD Pin 2 DTR Pin 4 DSR Pin 6 GND Pin 5 GND Pin 5 DSR Pin 6 DTR Pin 4 RTS Pin 7 CTS Pin 8 CTS Pin 8 RTS Pin 7

TABLE A.5 D9 TO D9 CONNECTION

Page 49

Jumper Settings of NGSM(Power Supply

Internal dip switches of the power supply, NGSM 32/10, must be set correctly to ensure proper communication between PC and the NGSM. These switches are set up by Siemens and tested before delivery, hence it is not necessary to change it normally.

These switches are located under the left side of the cover of the NGSM.

Position OFF ON OFF OFF ON OFF OFF ON

Switch No. 1 2 3 4 5 6 7 8

TABLE A.6 SWITCH SETTINGS

Test SIM card Information

For testing purposes, in combination with the Rohde & Schwarz GSM tester, CMD or CTS, it is mandatory to use the enclosed test SIM card.

If you do not use this test SIM card, you will encounter difficulties in getting correct measurement for the Bit Error Rate.

When the SIM card simulation is set to ‘1’ in the INI file, then this

test SIM card is not needed at all

There are two different PIN numbers stored in the SIM card. The PINs and

their respective Master-PIN are:

PIN 1 12 34 Master-PIN 1 76 54 32 10

PIN 2 56 78 Master-PIN 2 98 76 54 32

TABLE A.7 D25 TO D25 CONNECTION



Page 50

ANNEX B

Service Equipment List

All purchases of jigs, tools and test equipment must be order directly from Siemens Germany. Attach the standard form with your purchase order and send it to ICP CD SL and ICP CD ST.

Pos.

No.

Name Siemens

Partnumber

Order?

(ý =Yes)

Special testequipment for use with CMD 53

1 GSM Tester CMD 53 incl. Options B1, B4, B30 F30032-P1-A1 r 11 RF-Switch F30032-P27-A1 r 12 Powersupply for RF-Switch V24851-Z2607-A1 r 13

RF-cable SMA(m) ↔ FME(f)

F30032-P30-A1 r

RF-cable SMA(m) ↔ SMA(m)

F30032-P31-A1 r

RF-cable SMA(m) ↔ SMA(f)

F30032-P32-A1 r

Special testequipment for use with CTS 55

10 GSM-Tester CTS 55 incl. Options B1,B7,K6,K9,K18 F30032-P24-A1 r 11 RF-Switch F30032-P27-A1 r 12 Powersupply for RF-Switch V24851-Z2607-A1 r 13

RF-cable SMA(m) ↔ FME(f)

F30032-P30-A1 r

RF-cable SMA(m) ↔ SMA(m)

F30032-P31-A1 r

RF-cable SMA(m) ↔ SMA(f)

F30032-P32-A1 r

Testequipment for use with CTS 55 or CMD 53

16 Test-SIM-Card (plug-in type) F30032-P2-A1 r 17

RS 232 cable PC ↔ CMD / CTS (9pins.)

F30032-P3-A1 r

21 Printer incl. parallel cable F30032-P7-A1 r 22 Test jig incl. aerial coupler “new” F30032-P8-A1 r 23

Connector N ↔ FME(m)

F30032-P11-A1 r

24 User manual test software CMD / CTS F30032-P13-A1 r 25 Disk with test software CMD / CTS F30032-P19-A1 r

Antenna Cradle C35/S35/M35 L36880-N4001-A110 r

For use with C25/ C35 SW Upgrade Station

26 Boot Adapter incl. AC-Adapter, serial cable & Mobile

connection cable. Need nos 41 for C35.

L24857-F1006-A30 r

43 Adapter-Cable-Bootadapter C25/C35 V30146-A5004-D r

Opening -Tools for use with C25/C35

44 Case opener C35 F30032-P46-A1 r

Battery Analyser

45 CADEX Tester C7000 F30032-P49-A1 r 46 Universal Adapter F30032-P59-A1 r

TABLE B.1 SERVICE EQUIPMENT ORDER FORM

For detail information, contact your Service Manager

°

Page 51

Level 2.5 Repair Document

Introduction

The C/M/S35 product family consists of 5 different dualband handsets (GSM-900 and GSM-1800), which can easily be distinguished from the second block of the part number printed on the IMEI label. There also exist Asian variants of C/M/S35 named 3508 / 3518 / 3568 respectively. All information below also applies to the Asian variants unless otherwise noted.

Partnumber on IMEI label:

1) C35 / 3508: S30880-S4000-Xxxx

2) C35i / 3508i: S30880-S4050-Xxxx Same as C35 / 3508 but with additional WAP and fax/data capabilities

3) M35 / 3518: S30880-S4200-Xxxx

4) M35i / 3518i: S30880-S4250-Xxxx Same as M35 / 3518 but with additional WAP and fax/data capabilities

5) S35i / 3568i: S30880-S4100-Xxxx

This manual is intended to help you carry out repairs on level 2.5, meaning limited component repairs. Failure highlights are documented and should be repaired in the local workshops.

It must be noted that all repairs have to be carried out in an environment set up according to the ESD (Electrostatic Discharge Sensitive Devices) regulations defined in international standards.

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

Fault code listed must be used for LSO reporting purpose.

Fault Description Fault Code Part Number

Chapter



Page 52

If you have any questions regarding the repair procedures or spare parts do not hesitate to contact our technical support team in Kamp-Lintfort, Germany:

Tel.: +49 2842 95 4666 Fax: +49 2842 95 4302 e-mail: dominik.schnoor@klf.siemens.de

This manual is intended to help you carry out repair on Level 2.5, i.e. limited component repair. Failure highlighted in this document should be repaired in the local workshop.

Page 53

Antenna Connector

Affected Units

Type: C/M/S35

Affected IMEIs / Date Codes: All / All

Affected SW-Versions: All

Fault Code for LSO reporting: 3ANC

Fault Description

Fault Symptoms for customers:

Network Search when using the external antenna (carkit)

No location update possible on external antenna (carkit)

Fault Symptom on GSM-Tester:

Output power problems on the external antenna No location update possible

Component Information

The Antenna Connector is a mechanical switch operated by the RF plug of a carkit or, for testing purposes, of an RF clip. Normally the RF signal goes to and comes from the internal antenna. Whenever an RF plug is plugged into the antenna connector the connection to the internal antenna is opened and the connection to the external antenna socket is made. See drawing below.

From Power Amplifier/

To / From Internal Antenna

Page 54

Priority:

 ........ Mandatory

 ........ Repair

 ........ Optional

 ........ Not Yet Defined

Repair Documentation

Description of procedure:

D I A G N O S I S

Check the output power of the handset with the LSO testprogram. Especially watch the external antenna power!

R E P A I R B Y C O M P O N E N T C H A N G E

Use hot air blower to remove defective connector Avoid excessive heat! Watch surrounding components!

Resolder new connector afterwards.

R E P A I R B Y S W - B O O T I N G

Not possible!

T E S T

Retest handset after repair as described above.

List of needed material

C O M P O N E N T S

X35 antenna connector

Attention: This is not the same connector as C25/S25 !!!

Part-Number: L36334-Z93-C272

J I G S A N D T O O L S

Hot Air Blower

Soldering Iron

Page 55

S P E C I A L T O O L S

None

W O R K I N G M A T E R I A L S

Desolder Wick / Braid Solder

Drawings

Figure 1: X35 Board Antenna Connector Side (Top View)

Page 56