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    V1.0
    Local Service Organization Service Manual
    C3 5 S e r ii e s
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    V1.0 i
    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
    V1.0 1
    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.
    Chapter
    1
    T
    V1.0 2
    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.
    V1.0 3
    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.
    1
    V1.0 4
    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
    B
    MENU
    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.
    V1.0 5
    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.
    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.
    V1.0 6
    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 .
    V1.0 7
    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
    2
    
    V1.0 8
    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 time1 50 to 180 hours (standard battery)
    Talk time1 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, l/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.
    1 Actual time dependent on the network.
    V1.0 9
    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 Browser1 Version 1.1
    Other Features Clock / Alarm
    Alarm List2
    Built-in modem3
    Calculator4
    Currency Converter
    4 Games
    7 User Profiles
    1 Only for Model C35i.
    2 Not available in C35 International version.
    3 Not available in C35 International version.
    4 Not available in C35 International version.
    V1.0 10
    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 Portable1 L36880-N3015-A117
    10. Car Kit Comfort L36880-N4001-A111
    11. Car Handset2 L36880-N3015-A123
    12. Designer Cases L36880-N4001-A119
    13. Soft Data Link 3.0 L36880-N4001-A122 (Not for 3508i)
    14. Data Cable3 L36880-N3101-A102
    15. Car Kit Professional Voice L36880-N4001-A124
    16. Data Cable Professional4 L36880-N3101-A112
    1 Same as C25(88)
    2 Same as C25(88)
    3 Same as C25(88)
    4 Same as C25(88)
    V1.0 11
    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).
    V1.0 12
    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.
    V1.0 13
    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.
    Always r e fer to the SERVICE PART PRICE L IST
    f o r your s p a re p a rt o rder.
    1
    V1.0 14
    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).
    1
    V1.0 15
    Hardware Concept – Block Diagram
    FIGURE 2.2 C35 BLOCK DIAGRAM.
    V1.0 16
    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.
    V1.0 17
    4) Power Supply ASIC – D0767BA
    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
    1
    V1.0 18
    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.
    1
    1
    V1.0 19
    Be careful with NON-original SIEMENS accessories or chargers. Make sure that
    the charging current is limited to value below 1A.
    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.
    Avo i d s hort i ng t he b a t t e ry t e rminal 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
    V1.0 20
    1. Rapid charger
    2. Travel charger
    3. Car charger
    4. Desktop charger
    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).
    V1.0 21
    The charging symbol will come up as an indication that the normal charging process has
    been started by the mobile.
    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
    V1.0 22
    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
    1
    V1.0 23
    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
    V1.0 24
    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.
    V1.0 25
    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
    V1.0 26
    STEP 3:
    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.
    V1.0 27
    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.
    1
    V1.0 28
    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.
    New Upper and Lowe r Casing must be used. A l l
    c onta c t p ins must n o t b e d i r t y , d amaged o r b e n t !
    I f a n y par t i s not O . K p lease repl a c e i t w i th a new
    par 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
    1
    V1.0 29
    STEP 3:
    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
    1
    V1.0 30
    RS232 Port
    Adaptor-Cable -Bootadptor
    Bootadptor
    AC Adaptor
    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
    V1.0 31
    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.
    V1.0 32
    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
    1 English, German, French, Italian, Dutch, Swedish,
    Finnish, Norwegian, Danish.
    2 English, German, French, Italian, Dutch, Swedish,
    Finnish, Norwegian, Danish.
    3 English, German, French, Italian, Spanish, Catalan,
    Portugese, Dutch.
    4 English, German, Hungarian, Polish, Russian, Bulgrian,
    Czech, Slovakian.
    5 English, French, Italian, Arabic, Greek, Turkish, Hebrew,
    Bahasan Malaysia, Bahasan Indonesia.
    8 English2, Chinese Simplified, Chinese Traditional.
    Note: Tegic- T9 Input method support in for the languages BOLD.
    TABLE 2.2 SOFTWARE LANGUAGE GROUPS.
    T h is inf o rmat i o n is s u b je c t 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 Î Version = 05; Language Group = 1
    C3i_0506 Î Version = 05; Language Group = 6.
    1
    1
    C35_(Version)(LG).EXE
    V1.0 33
    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
    No
    Yes
    Yes
    No
    No
    Yes
    Yes
    No
    Yes
    No
    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
    V1.0 34
    Customer Specific Initialization
    Refer to the Customization Guide
    LSO has to make sure t h a t a f t e r rep a i r t h e
    custome r g e t s t h e mo b i l e w i t h c o rre c t v a ri a n t
    spe c i f i c i n i t i a l i z a t i on.
    For more inf o rmat io n a b o u t t h e c o n f igura t ion
    t o o l , ref e r t o Servi c e Inf o rmat i o n d a t e d 3 0t h
    Apr i l 1 9 9 9 , o r c o n t a c t y o u r Service Manager.
    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
    
    V1.0 35
    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.
    V1.0 36
    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.
    1
    V1.0 37
    Siemens Service Equipment
    USER MANUAL
    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 me 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 FULLY AUTOMATIC TEST PROCEDURE IS ONLY
    POSSIBLE IF THE COMPLETE SYSTEM IS
    INSTALLED.
    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
    3
    1
    1
    V1.0 38
    R&S CMD55 Test Station
    R&S CTS55 Test Station
    V1.0 39
    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
    V1.0 40
    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.
    V1.0 41
    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.
    V1.0 42
    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.
    1
    V1.0 43
    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.
    V1.0 44
    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.
    V1.0 45
    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.
    V1.0 46
    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
    V1.0 47
    Computer:
    Sub-D 9 pins
    CMD / CTS:
    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
    V1.0 48
    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
    1
    V1.0 49
    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.
    Order?
    :)=Yes)
    Pos.
    No.
    Name Siemens
    Partnumber
    Special testequipment for use with CMD 53
    1 GSM Tester CMD 53 incl. Options B1, B4, B30 F30032-P1-A1 ˆ
    11 RF-Switch F30032-P27-A1 ˆ
    12 Powersupply for RF-Switch V24851-Z2607-A1 ˆ
    13 RF-cable SMA(m) « FME(f) F30032-P30-A1 ˆ
    14 RF-cable SMA(m) « SMA(m) F30032-P31-A1 ˆ
    15 RF-cable SMA(m) « SMA(f) F30032-P32-A1 ˆ
    Special testequipment for use with CTS 55
    10 GSM-Tester CTS 55 incl. Options B1,B7,K6,K9,K18 F30032-P24-A1 ˆ
    11 RF-Switch F30032-P27-A1 ˆ
    12 Powersupply for RF-Switch V24851-Z2607-A1 ˆ
    13 RF-cable SMA(m) « FME(f) F30032-P30-A1 ˆ
    14 RF-cable SMA(m) « SMA(m) F30032-P31-A1 ˆ
    15 RF-cable SMA(m) « SMA(f) F30032-P32-A1 ˆ
    Testequipment for use with CTS 55 or CMD 53
    16 Test-SIM-Card (plug-in type) F30032-P2-A1 ˆ
    17 RS 232 cable PC « CMD / CTS (9pins.) F30032-P3-A1 ˆ
    21 Printer incl. parallel cable F30032-P7-A1 ˆ
    22 Test jig incl. aerial coupler “new” F30032-P8-A1 ˆ
    23 Connector N « FME(m) F30032-P11-A1 ˆ
    24 User manual test software CMD / CTS F30032-P13-A1 ˆ
    25 Disk with test software CMD / CTS F30032-P19-A1 ˆ
    Antenna Cradle C35/S35/M35 L36880-N4001-A110 ˆ
    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 ˆ
    43 Adapter-Cable-Bootadapter C25/C35 V30146-A5004-D ˆ
    Opening -Tools for use with C25/C35
    44 Case opener C35 F30032-P46-A1 ˆ
    Battery Analyser
    45 CADEX Tester C7000 F30032-P49-A1 ˆ
    46 Universal Adapter F30032-P59-A1 ˆ
    TABLE B.1 SERVICE EQUIPMENT ORDER FORM
    For detail information, contact your Service Manager 
    V1.0 50
    /HYHO  5HSDLU 'RFXPHQW
    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
    Chapter
    4
    1
    V1.0 51
    Fault code listed must be used for LSO reporting purpose.
    Fault Description Fault Code Part Number
    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.
    V1.0 52
    $QWHQQD &RQQHFWRU
    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/
    T
    To / From
    Internal
    Antenna
    V1.0 53
    3ULRULW\
    ‡ ........ Mandatory
    _ ........ Repair
    ‡ ........ Optional
    ‡ ........ Not Yet Defined
    Repair Documentation
    Description of procedure:
    DIAGNOSIS
    Check the output power of the handset with the LSO testprogram.
    Especially watch the external antenna power!
    REPAIR BY COMPONENT CHANGE
    Use hot air blower to remove defective connector
    Avoid excessive heat!
    Watch surrounding components!
    Resolder new connector afterwards.
    REPAIR BY SW-BOOTING
    Not possible!
    TEST
    Retest handset after repair as described above.
    List of needed material
    COMPONENTS
    X35 antenna connector
    Attention: This is not the same connector as C25/S25 !!!
    Part-Number: L36334-Z93-C272
    V1.0 54
    JIGS AND TOOLS
    Hot Air Blower
    Soldering Iron
    SPECIAL TOOLS
    None
    WORKING MATERIALS
    Desolder Wick / Braid
    Solder
    'UDZLQJV
    Figure 1: X35 Board Antenna Connector Side (Top View)
    V1.0 55
    5LQJHU
    Affected Units
    Type: C/M/S35
    Affected IMEIs / Date Codes: All / All
    Affected SW-Versions: All
    Fault Code for LSO reporting: 3RIN
    Fault Description
    Fault Symptoms for customers:
    Problems with the handset ringer. No ringer tone audible.
    Fault Symptom on GSM-Tester:
    Handset fails ringer test.
    Priority:
    ‡ ........ Mandatory
    _ ........ Repair
    ‡ ........ Optional
    ‡ ........ Not Yet Defined
    V1.0 56
    Repair Documentation
    Description of procedure:
    DIAGNOSIS
    Visually check the ringer. Watch for physical damage or dry joints.
    REPAIR BY COMPONENT CHANGE
    Resolder dry soldering joints.
    If the ringer is physically damaged use hot air blower or wick to remove defective
    connector.
    Avoid excessive heat!
    Watch surrounding components!
    Resolder new ringer afterwards.
    REPAIR BY SW-BOOTING
    Not possible!
    TEST
    Retest handset after repair.
    List of needed material
    COMPONENTS
    Ringer P35:
    Part-Number: L36178-Z2-C26
    JIGS AND TOOLS
    Hot Air Blower
    Soldering Iron
    V1.0 57
    SPECIAL TOOLS
    None
    WORKING MATERIALS
    Desolder Wick / Braid
    Solder
    Flux
    Drawings
    Figure 1: X35 Board Ringer Side
    Figure 2: X35 Ringer (B800) Placement (Top View)
    V1.0 58
    %RWWRP &RQQHFWRU /XPEHUJ
    Affected Units
    Type: C/M/S35
    Affected IMEIs / Date Codes: All / All
    Affected SW-Versions: All
    Fault Code for LSO reporting: 3LUC
    Fault Description
    Fault Symptoms for customers:
    Charging problems.
    Problems with external loudspeaker or microphone when
    using a car kit.
    Problems with accessories connected at the bottom
    connector.
    Problems with SW booting.
    Fault Symptom on GSM-Tester:
    This problem cannot be detected with a GSM-Tester.
    Priority:
    ‡ ........ Mandatory
    _ ........ Repair
    ‡ ........ Optional
    ‡ ........ Not Yet Defined
    V1.0 59
    Repair Documentation
    Description of procedure
    DIAGNOSIS
    Visually check the bottom connector. Watch for dry joints!
    REPAIR BY COMPONENT CHANGE
    Use hot air blower remove defective bottom connector.
    Avoid excessive heat!
    Watch surrounding components!
    Resolder new bottom connector afterwards.
    REPAIR BY SW-BOOTING
    Not possible!
    TEST
    Retest handset after repair.
    List of needed material:
    COMPONENTS
    Bottom Connector X35
    Part-Number: L36334-Z93-C262
    JIGS AND TOOLS
    Hot Air Blower
    Soldering Iron
    SPECIAL TOOLS
    None
    V1.0 60
    WORKING MATERIALS
    Desolder Wick / Braid
    Solder
    Drawings
    Figure 1: X35 Board Bottom Connector Side
    Figure 2: X35 Bottom Connector Placement (Top View)
    Table 1: X35 Bottom Connector Pin Description
    Pin 12
    Pin 1
    V1.0 61
    Pin
    Name IN/OUT Notes
    1 GND
    2 SB I/O Charger coding and
    charger control.
    3 POWER I Charging Current
    4 FBatt+ O Power supply for the
    accessories.
    5 TX O Serial interface
    6 RX I Serial interface
    7 ZUB_CLK I/O Clock line for
    accessory bus
    Use as DTC In data
    operation
    8 ZUB_DATA I/O Data line for
    accessory bus.
    Use as CTS in data
    operation
    9 GND_MIC For external
    microphone
    10 HF_MIC I External microphone
    11 AUDO O Trigger for external
    loudspeaker
    12 GNDA For external
    loudspeaker
    V1.0 62
    'LVSOD\ &RQQHFWRU
    Affected Units
    Type: C/M/S 35
    Affected IMEIs / Date Codes: All / All
    Affected SW-Versions: All
    Fault Code for LSO reporting: 3DIC
    Fault Description
    Fault Symptoms for customers:
    Display problems, like missing lines or columns on the
    LCD or display contrast problems.
    Fault Symptom on GSM-Tester:
    Display test fails.
    3ULRULW\
    ‡ ........ Mandatory
    _ ........ Repair
    ‡ ........ Optional
    ‡ ........ Not Yet Defined
    V1.0 63
    Repair Documentation
    Description of procedure:
    DIAGNOSIS
    Visually check the status of the display connector. Watch for oxidation
    and dry solder joints.
    Mechanically check the opening / closing mechanism.
    REPAIR BY COMPONENT CHANGE
    Use hot air to remove defective connector
    Avoid excessive heat!
    Watch surrounding components!!
    Resolder new connector afterwards
    REPAIR BY SW-BOOTING
    Not possible!
    TEST
    Retest handset after repair.
    V1.0 64
    List of needed material
    COMPONENTS DISPLAY CONNECTOR
    Part-Number: L36195-Z26-C629
    JIGS AND TOOLS
    Soldering Iron
    Hot Air Blower
    SPECIAL TOOLS
    None
    WORKING MATERIALS
    Desolder Wick / Braid
    Solder
    V1.0 65
    Drawings
    Figure 1: X35 board display connector side
    Figure 2: X35 display connector placement (Top View)
    V1.0 66
    .H\ERDUG /('V
    Affected Units
    Type: C/M/S 35
    Affected IMEIs / Date Codes: All / All
    Affected SW-Versions: All
    Fault Code for LSO reporting: 3LED
    Fault Description
    Fault Symptoms for customers:
    Keyboard Illumination not working.
    Fault Symptom on GSM-Tester:
    This fault cannot be detected with a GSM-Tester
    Priority:
    ‡ ........ Mandatory
    _ ........ Repair
    ‡ ........ Optional
    ‡ ........ Not Yet Defined
    V1.0 67
    Repair Documentation
    Description of procedure:
    DIAGNOSIS
    Use the diode test function of a multimeter to check the status of the
    diode.
    The typical voltage drop on the diode is 1.7V when testing the diode
    function with the multimeter.
    REPAIR BY COMPONENT CHANGE
    Use soldering iron to remove defective diode
    Avoid excessive heat!
    Watch surrounding components!
    Resolder new diode afterwards.
    REPAIR BY SW-BOOTING
    Not possible!
    TEST
    Retest handset after repair.
    List of needed material
    COMPONENTS
    LED keyboard X35
    Part-Number: L36840-L2031-D670
    JIGS AND TOOLS
    Hot Air Blower
    Soldering Iron
    V1.0 68
    SPECIAL TOOLS
    None
    WORKING MATERIALS
    Desolder Wick / Braid
    Solder
    Drawings
    Figure 1: X35 board keyboard LED Side
    Figure 2: X35 keyboard LED placement and polarity (top view)
    V1.0 69
    'LVSOD\ /('V
    Affected Units
    Type: C/M/S 35
    Affected IMEIs / Date Codes: All / All
    Affected SW-Versions: All
    Fault Code for LSO reporting: 3LED
    Fault Description
    Fault Symptoms for customers:
    Display Illumination not working.
    Fault Symptom on GSM-Tester:
    This fault cannot be detected with a GSM-Tester
    Priority:
    ‡ ........ Mandatory
    _ ........ Repair
    ‡ ........ Optional
    ‡ ........ Not Yet Defined
    V1.0 70
    Repair Documentation
    Description of procedure:
    DIAGNOSIS
    Use the diode test function of a multimeter to check the status of the
    diode.
    The typical voltage drop on the diode is 1.7V when testing the diode
    function with the multimeter.
    Attention: There are two different types of display LEDs, one for
    C/M35 and one for S35! Also they use different placement location,
    see drawings 1 and 3.
    REPAIR BY COMPONENT CHANGE
    Use soldering iron to remove defective diode
    Avoid excessive heat!
    Watch surrounding components!
    Resolder new diode afterwards.
    REPAIR BY SW-BOOTING
    Not possible!
    TEST
    Retest handset after repair.
    List of needed material
    COMPONENTS
    Display LED S35
    Part-Number: L36840-L2048-D670
    Display LED C/M35
    Part-Number: L36840-L2047-D670
    J IGS AND TOOLS
    Hot Air Blower
    Soldering Iron
    V1.0 71
    SPECIAL TOOLS
    None
    WORKING MATERIALS
    Desolder Wick / Braid
    Solder
    Drawings
    Figure 1: C/M35 board display LED Side
    Figure 2: C/M35 board display LED placement and polarity
    V1.0 72
    Figure 3: S35 board display LED side
    Figure 4: S35 board display LED placement and polarity
    V1.0 73
    ,QIUDUHG 'LRGHV
    Affected Units
    Type: S 35
    Affected IMEIs / Date Codes: All / All
    Affected SW-Versions: All
    Fault Code for LSO reporting: 3INF
    Fault Description
    Fault Symptoms for customers:
    No infrared connection possible.
    Fault Symptom on GSM-Tester:
    This fault cannot be detected with a GSM-Tester.
    Priority:
    ‡ ........ Mandatory
    _ ........ Repair
    ‡ ........ Optional
    ‡ ........ Not Yet Defined
    V1.0 74
    Repair Documentation
    Description of procedure:
    DIAGNOSIS
    Visually check the status of the IrDa module. Watch for dry solder joints.
    Use a reference infrared port (eg. from a notebook) to check the IrDa
    function. If the notebook recognizes the S35, the infrared function is ok.
    REPAIR BY COMPONENT CHANGE
    Use hot air to remove defective infrared module.
    Avoid excessive heat!
    Watch surrounding components!!
    Resolder new module afterwards
    REPAIR BY SW-BOOTING
    Not possible!
    TEST
    Retest handset after repair.
    75
    List of needed material
    COMPONENTS INFRARED MODULE S35
    Part-Number: L36810-U6030-D670
    JIGS AND TOOLS
    Soldering Iron
    Hot Air Blower
    SPECIAL TOOLS
    None
    WORKING MATERIALS
    Desolder Wick / Braid
    Solder
    76
    ANNEX C
    PC Adaptor Cable & Accessories C35
    Belt Clip
    L36880-N4001-A113
    Car Kit Portable Handsfree Set
    L36880-N3015-A117
    Car Charger Cable 10,8-24V
    L36880-N4001-A108
    Adapter Cable E-Box-PC
    L36880-N3101-A112 Adapter Cable PC-Mobilephone
    L36880-N3101-A102
    Headset
    L36880-N4001-A123
    Microphone Accessories Kit
    L36158-A98-C6
    Car Holder
    L36158-A24-C25
    Car Kit Portable Handsfree Microphone
    L36254-Z6-C75
    VDA Adaptercable
    L36880-N4001-A121
    12 V
    77
    78
    Power Plug for C35, M35 , S35
    Desktop Charger
    L36880-N4001-A102
    Travel Charger 90-240 V Travel Charger 90-240V
    L36880-N4001-A103 L36880-N4001-A104
    Eur UK
    Power Plug
    L36280-Z4-C325
    L36280-Z4-C321
    L36280-Z4-C323
    L36280-Z4-C324
    L36280-Z4-
    C322
    79
    Car installation kit Ratio unit C35, M35 & S35
    Handsfree Microphone
    L36880-N4001-A116
    1RW LQFOXGHG LQ RXU 6WDQGDUG 'HOOLYU\
    O
    Handset
    L36880-N3015-A123
    Cradle Comfort
    L36158-A37-B1
    Connection Box
    Ratio
    Con. Cable Battery
    Comfort
    L36146-A2053-D
    Phone In Adapter
    L36880-N3015-A137
    80
    Car installation kit hands free unit C35, M35, S35
    Radio Mute black
    Battery red
    Battery Ground brown
    Ignition violet
    Handsfree Microphone
    L36254-Z6-C76
    Connection Box
    L36880-S2001-A100
    3m
    Handset
    L36880-N3015-A123
    Handsfree Loudspeaker
    L36104-F3090-X902
    Phone In Adaptor
    L36880-N3015-A137
    1RW LQFOXGHG LQ RXU 6WDQGDUG 'HOOLYU\ 3URJUDP
    Fuses 3A
    1,8m
    Con. Cable Battery Comfort
    L36146-A4013-D
    OR
    Cradle Comfort
    L36158-A37-B1
    81
    Carkit installation kit hand free unit Professional C35, M35, S35
    Handsfree Loudspaker
    L36104-F3090-X901
    Fuses 3A
    1,9m
    Handset
    L36880-N3015-
    A123
    3m
    Radio Mute black
    Lights Dimmer yellow
    Automatic Antenna
    white
    Battery red
    Battery ground brown
    Ignition violet
    Adapter Cable E-Box-PC
    L36880-N3101-A112
    Con. Cable Battery
    L36146-A1030-D
    Push to talk
    cable
    L36146 A4012 D
    Handfree Microphone
    L36254-Z6-C63
    Connection Box engl.
    L36880-N3101-A110
    Cradle Comfort
    L36158-A37-B1 Not included in our Standard
    82
    Carkit installation Comfort GPS C35, M35, S35
    Handsfree Microphone
    L36880-N4001-A116
    Antenna
    Crash Sensor
    L36880-N4001-A115
    1RW LQFOXGHG LQ RXU 6WDQGDUG
    Handset
    L36880-N3015-
    A123
    O
    Con. Cable Battery
    L36146-A2053-D
    Connection Pox GPS
    L36880-S4001-A4
    Car Cradle Telematic
    L36158-A37-B6
    Con. Pox
    Combi Antenna GPS
    L36851-Z1901-A46
    Handsfree Loudspeaker
    L36104-F3090-X902
    Phone In Adapter
    L36880-N3015-A137
    83
    PC Adaptar Cable & Accessory C35, M35, S35
    Belt Clip
    L36880-N4001-A113
    Car Kit Portable Handsfree Set
    L36880-N3015-A117
    Car Charger cable 10, 8 – 24V
    L36880-N4001-A108
    Adaptor Cable E-Box -PC
    L36880-N3101-A112 Adapter Cable PC-Mobilephone
    L36880-N3101-A102
    Headset
    L36880-N4001-A123
    Microphone Accessories Kit
    L36158-A98-C6
    Car Holder
    L36158-A24-C25
    Car Kit Portable Handsfree Microphone
    L36254-Z6-C75
    VDA Adaptercable
    L36880-N4001-A121
    12 V
    84
    References:
    1. Mouly M. & Pautet M-B. (1992) The GSM System for Mobile Communications, A
    comprehensive overview of the European Digital Cellular Systems France:
    Published by authors.
    2. Scourias, J Overview of the Global System for Mobile Communications University
    of Waterloo: Published by author.
    3. - (1998) GSM Introduction Published by Wavetek Wireless Communication
    Division.
    4. Barnes, N SIM Application Toolkit, Article by author on ETSI Website.
    5. Mehrotra A, (1994), Cellular Radio Analog and Digital System, Artech House Inc,
    USA.
    6. IrDA(Infrared Data Association), Serial Infrared Physical Layer Link Specification,
    Version 1.1, October 15, 1995.
    Disclaimer: This content is subjected to change without notice.
    Copyright ã 2000 Siemens Advanced Engineering Pte Ltd
    ICP CD Asia Service Center,
    164, Kallang Way, #04-22, Kolam Ayer Industrial Estate, Singapore 349248
    Author: Tan Guan San.
    Phone +65-8454822 • Fax +65-8426641
    First Print: April, 00
    Revised Print:
    The reproduction and transmission of this document to unauthorized parties is not permitted
    without written authority. Offender will be liable for damages.
     

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