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Siemens A55 Repair Documentation

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Repair Documentation
Version
V 1.00
09.052003
V 1.10
11.08.2003
V 1.10
A52/A55/C55 IFX
A52, A55 & C55 IFX
Level 2.5e
Date
Department
ICM MP CCQ GRM
ICM MP CCQ GRM
Page 1of 45
Company Confidential © Copyright Siemens AG
V 1.10
Document modified (A52)
Notes to change
New document
ICM MP CCQ GRM
08/03

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Table of Contents

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   Summary of Contents for Siemens A55

  • Page 1 A52, A55 & C55 IFX Level 2.5e Repair Documentation V 1.10 Version Date Department Notes to change V 1.00 09.052003 ICM MP CCQ GRM New document V 1.10 11.08.2003 ICM MP CCQ GRM Document modified (A52) V 1.10 Page 1of 45...
  • Page 2: Table Of Contents

    POWER SUPPLY....................23 Power Supply ASIC ..................23 6.1.1 Power Supply Operating modes: ..................25 6.1.2 Power Supply Functions:....................26 Battery ......................33 Charging Concept..................34 V 1.10 Page 2of 45 ICM MP CCQ GRM A52/A55/C55 IFX 08/03 Company Confidential © Copyright Siemens AG...
  • Page 3 Electrical ..........................42 Earpiece/Loudspeaker ................. 43 8.2.1 Mechanical .........................43 8.2.2 Electrical ..........................43 DISPLAY AND ILLUMINATION................ 44 Display......................44 Illumination ....................44 KEYBOARD ....................45 V 1.10 Page 3of 45 ICM MP CCQ GRM A52/A55/C55 IFX 08/03 Company Confidential © Copyright Siemens AG...
  • Page 4: List Of Available Level 2,5e Parts C55 Ifx

    Z211 Filter HIT/IFX Logic/IO_Interface L36197-F5000-F116 Z850 1LO_VCO L36145-G100-Y96 Z851 Filter Filter_BALUN L36145-K260-Y41 Z880 Ant_Switch_Diplexer L36145-K280-Y257 Z900 Power_Amplifier L36851-Z2002-A59 Z950 Quartz Oszillator_26MHz L36145-F260-Y17 V 1.10 Page 4of 45 ICM MP CCQ GRM A52/A55/C55 IFX 08/03 Company Confidential © Copyright Siemens AG...
  • Page 5: Required Equipment For Level 2,5e

    Software for GSM-Tester ( Cats(Acterna/Wiltek) or CMU-GO(Rohde&Schwarz) ) Software for reference oscillator adjustment Internet unblocking solution Dongle driver for USB-Dongle if used with WIN NT4 V 1.10 Page 5of 45 ICM MP CCQ GRM A52/A55/C55 IFX 08/03 Company Confidential © Copyright Siemens AG...
  • Page 6: Radio Part Description

    Direct conversion receiver with channel filtering • Direct Modulator • Active part of the reference oscillator including buffer • Control circuit for band switch V 1.10 Page 6of 45 ICM MP CCQ GRM A52/A55/C55 IFX 08/03 Company Confidential © Copyright Siemens AG...
  • Page 7: Power Supply Rf-part

    4 to be further used from the EGOLD+ (D171 (functional T3)) The required voltage VCC_SYN is provided by the ASCI D361 V 1.10 Page 7of 45 ICM MP CCQ GRM A52/A55/C55 IFX 08/03 Company Confidential © Copyright Siemens AG...
  • Page 8: Synthesizer: Lo1

    ). The LO frequency is 4 times the RX/TX frequency for EGSM 900 and 2 pin3 times for GSM1800. This LO1 frequency range The required voltage VCC_SYN is provided by the ASIC D361 V 1.10 Page 8of 45 ICM MP CCQ GRM A52/A55/C55 IFX Company Confidential © Copyright Siemens AG 08/03...
  • Page 9 Block diagram External loopfilter Circuit diagram External loopfilter V 1.10 Page 9of 45 ICM MP CCQ GRM A52/A55/C55 IFX 08/03 Company Confidential © Copyright Siemens AG...
  • Page 10: Antenna Switch / External Antenna Connector (electrical/mechanical Only C55)

    Two balanced SAW filters are integrated to have good stop-band attenuation in the GSM and the PCN RX paths. Top View Block diagram V 1.10 Page 10of 45 ICM MP CCQ GRM A52/A55/C55 IFX 08/03 Company Confidential © Copyright Siemens AG...
  • Page 11: Receiver

    The control is realised through the EGOLD+ signals (RFDATA; RFCLK; RFSTR. (RF Control J15, J16, J17 V 1.10 Page 11of 45 ICM MP CCQ GRM A52/A55/C55 IFX 08/03 Company Confidential © Copyright Siemens AG...
  • Page 12 The required voltage VCCSYN is provided by the ASIC D361 Circuit diagram progr. signals from antenna to EGOLD+ Top view PMB6256 V 1.10 Page 12of 45 ICM MP CCQ GRM A52/A55/C55 IFX 08/03 Company Confidential © Copyright Siemens AG...
  • Page 13: Ic Overview

    4.6.2 IC Overview IC Overview Smarti RX Path TX Path RX/TX Path V 1.10 Page 13of 45 ICM MP CCQ GRM A52/A55/C55 IFX 08/03 Company Confidential © Copyright Siemens AG...
  • Page 14 Block diagram The functional block diagram shows the IFX RF solution of the A55/C55 RF-Part of L55 Tuna / Infineon (2dB steps) (2dB steps) BB filter BB filter internal antenna 925-960 MHz +/- 45° 942.5 MHz GSM LNA Divider DC autocalibration...
  • Page 15: Transmitter

    The next stage in the low band line-up is a TX saw filter. In the high band no SAW filter is required. V 1.10 Page 15of 45 ICM MP CCQ GRM A52/A55/C55 IFX 08/03 Company Confidential © Copyright Siemens AG...
  • Page 16: Transmitter: And Power Amplifier

    ASIC D361. to Ant. from limitter connector amplfier Blockdiagram of R 340 (PA) V 1.10 Page 16of 45 ICM MP CCQ GRM A52/A55/C55 IFX 08/03 Company Confidential © Copyright Siemens AG...
  • Page 17: Logic / Control

    5 Logic / Control 5.1 Overview of Hardware Structure 5.1.1 Logic Block Diagram Part RF Control 5.1.2 Block Diagram C55 IFX Control Part V 1.10 Page 17of 45 ICM MP CCQ GRM A52/A55/C55 IFX 08/03 Company Confidential © Copyright Siemens AG...
  • Page 18: Egold

    • Control of base band processing (EGAIM) • Central operating system functions (general functions, chip select logic, HW driver, control of mobile phones and accessories...). V 1.10 Page 18of 45 ICM MP CCQ GRM A52/A55/C55 IFX 08/03 Company Confidential © Copyright Siemens AG...
  • Page 19 • 1 D/A converter for the Power Ramping Signal, • 1 Sigma Delta A/D and D/A converter for the linguistic signal. Blockdiagram EGAIM inside the EGOLD V 1.10 Page 19of 45 ICM MP CCQ GRM A52/A55/C55 IFX 08/03 Company Confidential © Copyright Siemens AG...
  • Page 20 EGOLD+ . An analogue multiplexer (Analog Interface P1) does the switching between the baseband signal processing and the voltage measurement. V 1.10 Page 20of 45 ICM MP CCQ GRM A52/A55/C55 IFX 08/03 Company Confidential © Copyright Siemens AG...
  • Page 21 After loading into an 10 bit latch the control value will be converted into the corresponding analogue voltage with a maximum of ~2V Key-Value V 1.10 Page 21of 45 ICM MP CCQ GRM A52/A55/C55 IFX 08/03 Company Confidential © Copyright Siemens AG...
  • Page 22: Sram

    64Mbit (8 Mbyte) Data Bus: 16 Bit 16 Bit 5.1.6 SIM SIM cards with supply voltages of 1.8V and 3V are supported. V 1.10 Page 22of 45 ICM MP CCQ GRM A52/A55/C55 IFX 08/03 Company Confidential © Copyright Siemens AG...
  • Page 23: Vibration Motor

    The bandgap- voltage is used as reference for the voltage regulators. V 1.10 Page 23of 45 ICM MP CCQ GRM A52/A55/C55 IFX 08/03 Company Confidential © Copyright Siemens AG...
  • Page 24 Power Supply Diagram V 1.10 Page 24of 45 ICM MP CCQ GRM A52/A55/C55 IFX 08/03 Company Confidential © Copyright Siemens AG...
  • Page 25: Power Supply Operating Modes

    (PinC3) with the internal LDO is switched off. Only the battery can be used for supply. This mode is called “phone stand-by”. V 1.10 Page 25of 45 ICM MP CCQ GRM A52/A55/C55 IFX 08/03 Company Confidential © Copyright Siemens AG...
  • Page 26: Power Supply Functions

    Therefore this signal is sensed as level sensitive at the end of POR and edge sensitive after POR signal. V 1.10 Page 26of 45 ICM MP CCQ GRM A52/A55/C55 IFX 08/03 Company Confidential © Copyright Siemens AG...
  • Page 27 REG2, which will force the regulator to a lower input voltage and therefore lower power dissipation. V 1.10 Page 27of 45 ICM MP CCQ GRM A52/A55/C55 IFX 08/03 Company Confidential © Copyright Siemens AG...
  • Page 28 TWI bit. In external mode, RF2LDO can only be enabled by VCXO_EN (PinH1). RF2LDO is released with rising edge of POWER_ON signal. V 1.10 Page 28of 45 ICM MP CCQ GRM A52/A55/C55 IFX 08/03 Company Confidential © Copyright Siemens AG...
  • Page 29 Temperature switchoff becomes effective at approx. T>60°C. Voltage The levels of regulator REG1 and REG2 and supervision also the supply voltage BATT+ are supervised with comparators. V 1.10 Page 29of 45 ICM MP CCQ GRM A52/A55/C55 IFX 08/03 Company Confidential © Copyright Siemens AG...
  • Page 30 TWI register. The high level can be derived of VREG2 or VREG3. Additional a pull down transistor is connected to this node. V 1.10 Page 30of 45 ICM MP CCQ GRM A52/A55/C55 IFX 08/03 Company Confidential © Copyright Siemens AG...
  • Page 31 –54dB to –75dB. The signals for the amplifier are connected via an audio multiplexer with 3 pairs of input signals. V 1.10 Page 31of 45 ICM MP CCQ GRM A52/A55/C55 IFX 08/03 Company Confidential © Copyright Siemens AG...
  • Page 32 (DAO) and the word select line (WAO). The master I2S also generates the appropriate clock frequency for CLO set to 32 times the sampling rate (FS) V 1.10 Page 32of 45 ICM MP CCQ GRM A52/A55/C55 IFX 08/03 Company Confidential © Copyright Siemens AG...
  • Page 33: Battery

    –54dB to –75dB 6.2 Battery As a standard battery a LiIon battery with a nominal capacity of 3,7 Volt/700mAh is used. V 1.10 Page 33of 45 ICM MP CCQ GRM A52/A55/C55 IFX 08/03 Company Confidential © Copyright Siemens AG...
  • Page 34: Charging Concept

    DSP circuit so that the measured voltage (for battery and ambient temperature) will be available at the end as a 10-bit data word. V 1.10 Page 34of 45 ICM MP CCQ GRM A52/A55/C55 IFX 08/03 Company Confidential © Copyright Siemens AG...
  • Page 35 (note the restrictions on this item as stated below). V 1.10 Page 35of 45 ICM MP CCQ GRM A52/A55/C55 IFX 08/03 Company Confidential © Copyright Siemens AG...
  • Page 36 (e.g. direct connection of the charge contact to the electricity supply in a motor car) is not provided. Customer safety will not be affected by this restriction. V 1.10 Page 36of 45 ICM MP CCQ GRM A52/A55/C55 IFX 08/03 Company Confidential © Copyright Siemens AG...
  • Page 37: Interfaces

    “earpiece” (earpiece, ringer, handsfree function). EPN1 2nd connection to the internal earpiece. Earpiece can be switched off in the case of accessory operation. V 1.10 Page 37of 45 ICM MP CCQ GRM A52/A55/C55 IFX 08/03 Company Confidential © Copyright Siemens AG...
  • Page 38: Microphone

    GND_MIC 7.4 Battery XG181 Name Level Remarks Ground AKKU_TYP 0V...2.65V Recognition of battery/supplier BATT+ 3 V... 4.5V Positive battery pole V 1.10 Page 38of 45 ICM MP CCQ GRM A52/A55/C55 IFX 08/03 Company Confidential © Copyright Siemens AG...
  • Page 39: Io Connector With Esd Protection

    AUDIO_R Analog driving ext. right speaker With mono-headset Audio_L and Audio_R differential Signal GND_MIC Analog for ext. microphone MICP2 Analog External microphone V 1.10 Page 39of 45 ICM MP CCQ GRM A52/A55/C55 IFX 08/03 Company Confidential © Copyright Siemens AG...
  • Page 40: Esd Protection With Emi Filter

    Electrostatic Discharge (ESD) voltages up to 8 kV. Pin configuration of the Z211 Z211 Circuit Configuration V 1.10 Page 40of 45 ICM MP CCQ GRM A52/A55/C55 IFX 08/03 Company Confidential © Copyright Siemens AG...
  • Page 41: Sim

    2.9V Power supply display controller LCD_CLK Clock LCD_DAT Data line LCD_RS Register select LCD_CS Chip select VLCD Power supply display LCD_RESET Reset V 1.10 Page 41of 45 ICM MP CCQ GRM A52/A55/C55 IFX 08/03 Company Confidential © Copyright Siemens AG...
  • Page 42: Acoustic

    Analog Interface G2, F1-G3, H2 MICN1, MICP1 (Internal Microphone )and MICN2, MICP2 (External Microphone/Headset). Power supply for the Microphone is VMIC (EGOLD+.( Analog Interface G1) V 1.10 Page 42of 45 ICM MP CCQ GRM A52/A55/C55 IFX 08/03 Company Confidential © Copyright Siemens AG...
  • Page 43: Earpiece/loudspeaker

    To activate the ringer, the signal RINGIN from the EGOLD+ ( ) is used Miscellaneous,D16 to ASIC from Bright EGOLD+ V 1.10 Page 43of 45 ICM MP CCQ GRM A52/A55/C55 IFX 08/03 Company Confidential © Copyright Siemens AG...
  • Page 44: Display And Illumination

    GSM TDMA-Timer G15 can be switched “on” and “off”. During the TX timeslot the light is deactivated via the signal BL_OFF GSM TDAM-Timer G14 V 1.10 Page 44of 45 ICM MP CCQ GRM A52/A55/C55 IFX 08/03 Company Confidential © Copyright Siemens AG...
  • Page 45: Keyboard

    KB 7 is used for the ON/OFF switch. The lines KB0 – KB5 are used as output signals. In the matrix KB6, KB8 and KB9 are used as input signals for the EGOLD+. V 1.10 Page 45of 45 ICM MP CCQ GRM A52/A55/C55 IFX 08/03 Company Confidential © Copyright Siemens AG...

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A52C55 ifx

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