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SIEMENS PTE LTD A55 Level 2 Service Manual Table of Contents 1 CELLULAR COMMUNICATION…………………………………………………….2 1.1 Subscriber Identity Module (SIM)…….………………………………………………………..4 2 WIRELESS APPLICATION PROTOCOL (WAP)………………………………….6 3 KEY FEATURES………………………………………………………………………8 4 COMPARISON WITH PERVIOUS PRODUCT……………………………………10 5 ACCESSORIES………………………………………………………………………11 6 5.1 Interface A55 with Accessories……………………………………………………………….11 5.
SIEMENS PTE LTD A55 Level 2 Service Manual 1 Cellular Communication The cellular systems are made up of numerous transmitting and receiving sites, whose individual coverage areas partially overlap. The concept of frequency reuse, same frequency is used by several sites, allows a high traffic density in a wide area.
SIEMENS PTE LTD A55 Level 2 Service Manual FIGURE 1.2 GSM ARCHITECTURE Each mobile station is given a unique identity. As soon as the mobile phone is turned on, it registers with the network and is authenticated; as such the network could always find the mobile phone.
SIEMENS PTE LTD A55 Level 2 Service Manual 1.1 Subscriber Identity Module (SIM) SIM is a smart card, which has a computer, and memory chip that is permanently installed in the mobile equipment. It comes in either the size of a credit card or smaller version known as the plug-in SIM. The subscriber information, which includes a unique number called the International Mobile Subscriber Identity (IMSI), is stored in the SIM card. SIM card identifies the subscriber to the network.
SIEMENS PTE LTD A55 Level 2 Service Manual GSM functionality on the SIM are separated logically. The Toolkit can interact directly with the mobile itself and adding itself to the mobile menu. Currently, Toolkit application on the SIM and its “other half” communicate by using the Short Message Service (SMS). “Proactive SIM” is a mechanism whereby the SIM can initiate actions to be taken by the mobile.
SIEMENS PTE LTD A55 Level 2 Service Manual A55 is a GSM Phase 2 / Phase 2+ Dual band E-GSM / GSM 1800 mobile phone. 2 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 mark-up language (WML), for information or service. The request is passed to a WAP Gateway, which then retrieves the information from an Internet server, in HTML format, and translates it into WML.
SIEMENS PTE LTD A55 Level 2 Service Manual 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.
SIEMENS PTE LTD A55 Level 2 Service Manual 3 Key Features General: · EMS · WAP 1.2.1 · Exchangeable Housing · Hands free · Amber Backlight for Display Battery · Li Ion Battery Pack from L55 Platform (C55/2128 and S55/57) · Nominal Capacity: 750mAh · GSM Capacity : 700mAh · Power Input : 1.8A (0.6ms) / 0.2A (4ms) · Cut-off Threshold : 3.2V Stand-by Time Talk Time · Approx. 250 h / Li Ion (measured at BSPAMFRMS = 9; number of neighbouring cells = 0) · Best case approx.
SIEMENS PTE LTD A55 Level 2 Service Manual Display · Type: Full Graphic · Resolution: 101 x 64 Pixel · Technology: FSTN · Pixel size / mm: 0.277 x 0.297 · Pixel distance / mm: 0.015 · Active area / mm: 29.5 x 20.0 · Visible area / mm: 33.0 x 23.
SIEMENS PTE LTD A55 Level 2 Service Manual 4 Comparison with Previous Product Feature Supported Systems A50 A55 Dual Band Dual Band E-GSM 900 / GSM 1800 E-GSM 900 / GSM 1800 Stand-by Time Up to 200 h Up to 250 h Talk Time Up to 5 h Up to 5 h Battery Technology Battery Capacity Ni-MH Battery Pack Li-Ion Battery Pack Nominal Cap.: 550 mAh Nominal Cap.: 750 mAh Weight approx. 106 g approx. 84 g 3 Volume approx. 82 cm approx. 75 cm3 Length 108,9 mm 103,1 mm Width 42.0 ... 46.
SIEMENS PTE LTD A55 Level 2 Service Manual 5 Accessories Note: Due to the changes on the connector from “Lumberg” to “Slim Lumberg”, accessories using the previous “Lumberg” connector are unable to be used on the “Slim Lumberg” platform. For the A55 Piranha the following accessories will be available. 5.1 Interface A55 to accessories The phone has got a fully compatible interface to accessories.
SIEMENS PTE LTD A55 Level 2 Service Manual 5.
SIEMENS PTE LTD A55 Level 2 Service Manual 6 Unit Description A55/56/52 A55 Piranha is designed as single-PCB phone with exchangeable covers and exchangeable keypad. Upper and lower covers are designed as bi-coloured parts - realized in 2-shot-moulding technology. Assembly concept for the customer Chassis exchangeable Rear-Cover exchangeable Front-Cover battery SIM-Card Copyright © Siemens Pte Ltd.
SIEMENS PTE LTD A55 Level 2 Service Manual 6.1 Exploded View of A55/56/52 display lens protection foil display lens upper case display cushion keypad screws earpiece gasket SAR frame LCD light guide earpiece metal dome foil PCB integrated antenna SIM slider vibration motor mounting frame microphone accumulator (battery) lower case Copyright © Siemens Pte Ltd.
SIEMENS PTE LTD A55 Level 2 Service Manual 7 Disassembly of A55/56/52 Note: ESD concept; the internal circuits will be more susceptible to ESD because of the use of exchangeable housing. The construction of the internal block must be/is designed, in the best possible way, to protect the circuit against sparks. The keypad must be completely closed to prevent any occurrence of an ESD disruptive discharge. The SIM contacts may be open, thus reachable for ESD contact discharge.
SIEMENS PTE LTD A55 Level 2 Service Manual Step 7 Step 8 The keypad can be separated from the CLIPit cover. To remove the MMI Board with Display from the phone, unscrew the 6 screws (as indicated) on the front with a Torque Plus screw driver. Step 9 Step 10 The RF board (PCB) can be seen after removing the MMI Board with Display. Separate the PCB from the Lower Mounting Frame of the phone. The antenna is built-in on the Lower Mounting Frame.
SIEMENS PTE LTD A55 Level 2 Service Manual 8 Reassembly of A55/56/52 For the reassembly of the A5x, simply reverse the disassembly procedures from Step 13 to Step 1. However there are some areas to be taken note during reassembling of the phone. During the installation of the SIM card, make sure that the SIM card is inserted properly and that the golden contact area is facing backwards. Push the metallic catch downwards to lock the SIM card into position.
SIEMENS PTE LTD A55 Level 2 Service Manual 9 Mobile Software Programming The common mobile software available 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 common to have some menu item(s) differ in different variants or are not visible at all.
SIEMENS PTE LTD A55 Level 2 Service Manual 9.1 Mobile Software Updating The software of the mobile phone is loaded directly from a PC. Hardware interconnection between the mobile and the PC is shown in Figure 2. Because of the new type of external connector used in L55 series (Slim-Lumberg type) an additional adaptor cable between mobile and boot adaptor is required. Table 2.1 listed all the hardware requirements If the battery dummy is used, ensure that the power supply voltage is correctly adjusted.
SIEMENS PTE LTD A55 Level 2 Service Manual 9.2 Flow Chart for Software Upgrading Plug in the Boot Adaptor to the PC and Mobile Start the SWUP program S/W upgrading in progress Connec t the A C adaptor to the Boot Adaptor Select & Execute the "Mobile S/W" ERROR? YES NO P o we r u p B o o t Adaptor & check LED. ERROR? NO TEST Mobile YES Check H/W setup = S/W Take note of error and repeat process Check AC Adaptor OK? Feedback Error to Tech. Supp.
SIEMENS PTE LTD A55 Level 2 Service Manual 10 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: Siemens Mobile Service Equipment Using this system vastly simplifies the repair of the phones and will make sure that: 1. All possible faults are detected 2.
SIEMENS PTE LTD A55 Level 2 Service Manual 11 PICS Internet Overview The following functions are available for the LSO · Generate PINCODE · Generate SIMLOCK-UNLOCK-Code · Print IMEI labels The access to the server which is located in Kamp-Lintfort is protected and will only be granted to authorize users being supplied with a special coded chipcard. Chipcards and the administration services of the PICS database are provided by PICSTRUST- Center at department ICP MP OI Kamp-Lintfort.
SIEMENS PTE LTD A55 Level 2 Service Manual Installation for Windows 95 / 98 / NT / 2000 Requirements In order to use the PICS-Internet websites you need a fully configured internet access with a 32bit NETSCAPE-Browser. Remark: Microsoft Internet Explorer and Netscape versions above 4.7x cannot be used! There is a 90-day-trial-version of Netscapes Navigator 4.6 in English or German available on the PICS installation CD provided by Siemens.
SIEMENS PTE LTD A55 Level 2 Service Manual Master - Phonecodes The Master – Phonecode is used to unlock blocked mobiles. Master – Phonecodes can only be supplied for mobiles which have been delivered in a regular manner. Copyright © Siemens Pte Ltd.
SIEMENS PTE LTD A55 Level 2 Service Manual Simlock Unlock - Code The Simlock-Unlock-Codes can only be generated if the following conditions are given: - Mobile must have an active Simlock inside. - The user must be given the authorization to obtain Simlock Unlock- Codes for the variant of the operator to which the mobile was delivered last time. Hint: If there's no such authorization you'll get the following screen: In this case please contact your responsible Siemens Customer Care Manager.
SIEMENS PTE LTD A55 Level 2 Service Manual Printing IMEI label The module “Print IMEI label” offers the possibility to print IMEI labels for mobiles again. You are able to print up to six labels in just one step. To prevent that misaligned labels are being printed, the setting "test printer = Yes" is activated as default. After having printed a well-aligned test label you can switch setting to "No" and print the correct label.
SIEMENS PTE LTD A55 Level 2 Service Manual 12 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.
SIEMENS PTE LTD A55 Level 2 Service Manual 13 General Testing Information General Information The technical instruction for testing GSM mobile phones is to ensure the best repair quality. Validity This procedure is to apply for all from Siemens AG authorized level 2 up to 2.5e workshops. Procedure All following checks and measurements have to be carried out in an ESD protected environment and with ESD protected equipment/tools. For all activities the international ESD regulations have to be considered.
SIEMENS PTE LTD A55 Level 2 Service Manual Check the storage capability: Ø Check internal resistance and capacity of the battery. Ø Check battery charging capability of the mobile phone. Ø Check charging capability of the power supply. Ø Check current consumption of the mobile phone in different mode. Visual inspection: Ø Check the entire board for liquid damages. Ø Check the entire board for electrical damages. Ø Check the housing of the mobile phone for damages.
SIEMENS PTE LTD A55 Level 2 Service Manual GSM Test: Ø Connect the mobile/board via internal antenna (antenna coupler) and external antenna (car cradle) to a GSM tester. Ø Use a Test SIM. Ø Skip GSM 900/GSM1800 or GSM1900 test cases if not performed by the mobile phone. Copyright © Siemens Pte Ltd.
SIEMENS PTE LTD A55 Level 2 Service Manual Copyright © Siemens Pte Ltd.
SIEMENS PTE LTD A55 Level 2 Service Manual Final Inspection: The final inspection contains: 1) A 100% network test (location update, and set up call). 2) Refer to point 3.3 3) A random sample check of: - data reset (if required) - optical appearance - complete function 4) Check if PIN-Code is activated (delete the PIN-Code if necessary). Basis is the international standard of DIN ISO 2859. Use Normal Sample Plan Level II and the Quality Border 0,4 for LSO. Remark: All sample checks must be documented.
SIEMENS PTE LTD A55 Level 2 Service Manual Annex 1 Test SIM Card There are 2 different “Test-SIM-Cards” in use a) Test SIM from the company “ORGA” Pin 1 No: PUK 1: 0000 12345678 Pin 2 No: PUK 2: 0000 23456789 b) Test SIM from the company “T-D1” Pin 1 No: PUK 1: 1234 76543210 Pin 2 No: PUK 2: 5678 98765432 Copyright © Siemens Pte Ltd.
