Siemens A70 User manual

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A70 Level 2 Service Manual
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Table of Contents
1 CELLULAR COMMUNICATION………………………………………..……….3
2 KEY FEATURES ……...……………………………………………………………….6
3 COMPARISION WITH PREVIOUS PRODUCT …………………………………….8
4 ACCESSORIES ……………………………………………………………………….9
5 UNIT DESCRIPTION OF A70...…………………………………………………......11
6 DISASSEMBLY OF A70........................................................................................13
7 REASSEMBLY OF A70........………………………………………………………..18
8 MOBILE SOFTWARE PROGRAMMING ……………………………………….....19
9 SIEMENS SERVICE EQUIPMENT USER MANUAL …………………………….22
10 JPICS INTERNET.……………………………………………………………………23
11 INTERNATIONAL MOBILE EQUIPMENT IDENTITY, IMEI…….………………..29
12 GENERAL TESTING INFORMATION……………………………….……………..30
Annex 1……………………………………………………………………………….……….35
Annex 2…………………………………………………………………………….………….36

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1 Cellular Communication
1.1 Coverage Concept
The cellular system 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

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1.2 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
Contain relevant data of all mobiles located in the serving MSC, but not belong to the
area.
Home Location Register, HLR
Stores identity and user data of all the mobile users belonging to the area.
Authentication Center, AUC
Provides the HLR with different sets of parameters to complete the authentication of
the mobile station.
Equipment Identity Register, EIR
An option the network operator can use to enforce security. With this feature the
network can identify defective or stolen mobile that may not be used in the network.

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1.3 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.
SIM card using 5V technology is not supported.
The subscriber information, which includes a unique number called the International
Mobile Subscriber Identity (IMSI) is stored in the SIM card. SIM card identifies the
subscriber to the network.
To protect the SIM card from improper use, a security feature, a four digits personal
identification number (PIN), is built in. The PIN is stored in the card and can be
changed by the subscriber. PIN2 Is required for additional functions available with a
special SIM card (Consult the operator for more Information about the PIN 2).
A code (PUK) is provided for unlocking the SIM card if the SIM card is blocked.

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2 Key Features
Bands • Triple Band E-GSM 900 / GSM 1800 / GSM 1900
• EGSM Phase 2 / phase 2+
Battery • Li-Ion Battery Pack
• Nominal Voltage : 3.7V
• Nominal Capacity : 600 mAh
Stand-by Time • up to 250 h (standard battery)
Talk Time • up to 300 min (standard battery)
SIM Card
• Small (”Plug In”) 1.8 V or 3V SIM card (Phase II)
• To insert the SIM card, the battery pack must be
removed.
GSM Antenna • Integrated triple band antenna for EMEA/APAC.
Dimensions • 101 x 45 x 21 mm (L x W x H)
Weight • 78 g
Charging time • < 2 h for 100%
Receiver Sensitivity • GSM 900: -102dBm (Specification, static & with fading)
• GSM 1800/1900: -102 dBm (Specification, static & with
fading)
Receiver sensitivity must comply with the corresponding GSM
recommendations in all operating conditions (temperature,
battery level, etc)
Transmitter Power • GSM 900: nominal 2W (Specification: Class 4 Mobile
phone)
• GSM 1800/1900: nominal 1W (Specification: Class 1
Mobile phone)
Transmitter output characteristics is according to GSM 11.10
specification implying all specified operating conditions
(Temperature, battery level ...).
Transmitter set points will be specified for GSM and PCN when
typical values and statistical values become available.
Speech Codec
• Half Rate, Full Rate, Enhanced Full Rate and Adaptive
Multi Rate speech coders are available as standard.
Temperature
Range • -100C to +550C (Normal operation)
• -300C to +850C (Storage capability)

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Display • Type: Full Dot Matrix
• Resolution: 101 x 64 Pixel
• Colours: B & W
• Technology: F-STN (Epson)
• Dot size: 0.277mm x 0.297mm
• Active area: 29.477mm x 19.953mm
• Visible area: 33.0mm x 23.2mm
• Illumination: Min 2.0cd/mm
• Operating Temp.: -200C to +550C
12-Block Keypad • 12-digit block (0-9, #, *) small letters
• two function keys (SEND, END)
• ON/OFF key combined with the END key
• 2 way navi key
• 2 softkeys on left & right position
Acoustics
• comfortable earpiece with optimal acoustics
• unidirectional microphone (same as Puma)
• different call melodies (for the amount see SW product
description). All melodies with increasing volume because
of the danger of acoustic shock. Additional measures to
protect from acoustic shock, see SW product description.
• different selectable volume levels for handset and ringer
mode (for the amount see SW product description)
• mount see SW product description)

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3 Comparison with Previous Product
Feature A65 A70
Frequency bands/int’l 900/1800/1900MHz 900/1800/1900MHz
Frequency bands/LAM 850/1800/1900MHz 850/1800/1900MHz
Product Class Class A Class A
Form factor Bar phone Bar phone
PCB thickness 1.106MM 1.106MM
PCB outline Same as Puma Same as Puma
BB chipset EGOLDlite EGOLDlite
RF solutions B6E/SD2 B6E/SD2
PMU ASIC Salzburg 75/Twigo 3+ 75 Salzburg 75/Twigo 3+ 75
Flash 64Mbit 32Mbit
RAM 16Mbit P-SRAM 16Mbit P-SRAM
Display 101X80, 4k, C-STN 101X64, b/w
Battery Same as Puma Same as Puma
Feature set A60 A52
USB/IrDA/Bluetooth None None
MMS None No
Java None No
WAP Yes No
Exchangable housing No No
Speaker Penelope Same as Penelope
Lead free technology Yes No
Clip on camera No No
NO ID CONCEPT Battery Cover Battery Cover
Navi key 4-way 2-way

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4 Accessories
For A70, the following accessories will be available.
Description Part number
Belt Case FCL-600 L36880-N7101-A120
Tour Case FCT-650 L36880-N5601-A149
Headset Purestyle HHS-610 L36880-N7101-A500
Headset HHS-510 L36880-N5601-A108
Headset Basic HHS-500 L36880-N5601-A107
Li-Ion Battery 700mAh EBA-510 L36880-N5601-A100
Travel Charger ETC-500 L36880-N5601-A104
Travel Charger ETC-510 L36880-N5601-A105
Car Charger Plus ECC-600 L36880-N7101-A109
Desk Top Stand EDS-600 TBC
Car Charger ECC-500 TBC
Car Kit Easy HKP-700 TBC
Car Kit Portable HKP-500 L36880-N5601-A109
Car Kit Easy Upgrade HKO-700 TBC
Note: Visit the Communication Market for updated accessories:
https://communication-market.siemens.de/

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4.1 A70 Interface to accessories
The phone has a fully compatible interface to accessories. The connectors (I/O) are
identical to the 75 Family.
Mechanical interfaces are defined on the mobile phone to make sure that the accessories
are compatible across the whole L75 platform.
The design is released by AD regarding compatibility to Accessory Devices.
Slim Lumberg I/O Connector

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5 Unit Description of A70
The Phone is part of the 75 platform with the following specific features:
• Integrated tri-band antenna
• B/W Display
• The concept of the device is optimized regarding design-to-cost and easy-to-
assemble.
The phone consists of equipped upper case, keypad, equipped PCB, equipped lower
case and battery cover.
The PCB is based on the 75 Platform.
All electro mechanic components are overtaken from Lion and Barracuda,
The RF chamber and shielding is new for 75 platform.
Each of the preassemblies, upper and lower cases are designed to be automatically
mounted and checked.
These preassemblies are designed to be easily assembled.
The strategy of use of similar components is completely realised.

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5.1 Exploded View of A70
Upper case shell w/o
Keypad with
Earphon
Display Main
Microphon
Vibramoto
Lower mounting
Screw
Battery
Battery Li-

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6 Disassembly of A70
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. This
could lead to damage or destruction of the E-Goldlite pins.
It is a requirement for the service personnel to observe ESD protection rules while
performing servicing the A70.
Step 1
Front view of the A70
Step 2
Back View of the A70
Step 3
Remove Battery cover.

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Step 4
Remove Battery
Step 5
Remove SIM Card: 1) move latch upwards; 2) SIM Card will eject from holder
Step 6
Remove the 4 screws (as indicated) with T5 Plus screw driver.

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Step7
Remove Lower mounting frame with Vibra and Micro.
Step 9
Remove Virbamotor. Remove Microphone.

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Step 10
Remove PCB
Step 11
Remove Display module. Place foil over display module for protection.
Step 12
Remove Earphone

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Step 13
Remove Keypad.
Step 14
Fully disassembled A70

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7 Reassembly of A70
For the reassembly of the A70, reverse the disassembly procedures from Step 13 to Step1.
However there are some areas to be taken note of 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 downwards. Insert the SIM card and push the latch downwards
to lock the SIM card into position.
Installation of the SIM card
During the installation of the battery, make sure that the hinges are properly in place (See picture
below). Otherwise the battery will not be able to fit into the phone properly.
When placing the screws, set Torque with 17cNm.

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8 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, and
short dial list etc., required by the operator or service provider. Therefore, it is common 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 fulfil 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:
- Software update to actual version and appropriate language group
- Programming of CUSTOMER SPECIFIC INITIALIZATION
Usage of GRT is mandatory!! For more detail check GRT User manual
Figure 1. A70 Software Programming Setup

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8.1 Mobile Software Updating
The software of the mobile, 65 series is loaded from a PC directly. Hardware
interconnection between the mobile and the PC is shown in Figure 1. Because of the new
type of external connector used since 55 series (Slim-Lumberg type) an additional
adaptor cable between mobile and boot adaptor is required. Table 1 listed all the
hardware requirements
If you use the battery dummy, make sure that the power supply voltage is correctly
adjusted.
Description Part No.
Bootadapter 2000 incl. AC-Adapter, serial
cable and mobile connection cable L36880-N9241-A200
IBM Compatible PC – Pentium -
Adapter cable – Slim Lumberg to Old F30032-P226-A1
TABLE 1. EQUIPMENT LIST FOR SOFTWARE PROGRAMMING