Service Manuals, User Guides, Schematic Diagrams or docs for : NOKIA Mobile Phone 7250-7250i 07-nhl4jx-sysmod

<< Back | Home

Most service manuals and schematics are PDF files, so You will need Adobre Acrobat Reader to view : Acrobat Download Some of the files are DjVu format. Readers and resources available here : DjVu Resources
For the compressed files, most common are zip and rar. Please, extract files with Your favorite compression software ( WinZip, WinRAR ... ) before viewing. If a document has multiple parts, You should download all, before extracting.
Good luck. Repair on Your own risk. Make sure You know what You are doing.



Image preview - the first page of the document



>> Download 07-nhl4jx-sysmod documenatation <<

Text preview - extract from the document

             Customer Care Solutions
        NHL-4J/NHL-4JX Series Transceivers




           System Module and User
                  Interface




Issue 2 06/03       Company Confidential   Nokia Corporation
NHL-4J/NHL-4JX               Company confidential
System Module and User Interface                                                      CCS Technical Documentation

Table of Contents
                                                                                                                                  Page No
  Glossary of Terms .......................................................................................................... 3
  Introduction.................................................................................................................... 6
    Electrical Modules .......................................................................................................6
    Interconnection Diagram .............................................................................................6
    Temperature Conditions ..............................................................................................7
    Humidity ......................................................................................................................7
  System Module : Baseband............................................................................................ 8
    Baseband Module, technical summary ........................................................................8
    Technical Summary .....................................................................................................9
    Environmental Specifications ......................................................................................9
      Temperature Conditions............................................................................................ 9
      Humidity and Water Resistance .............................................................................. 10
    Baseband Technical Specifications ...........................................................................11
      Absolute Maximum Ratings.................................................................................... 11
      DC Characteristics................................................................................................... 11
      Power Distribution diagram .................................................................................... 13
    Baseband External and Internal Signals and Connections ........................................14
      Integrated HF Speaker............................................................................................. 15
      FM Radio Interface ................................................................................................. 15
      Internal Speaker....................................................................................................... 16
      Integrated HF Speaker............................................................................................. 16
    External Signals and Connections .............................................................................20
      Keyboard (board-to-board) Connector.................................................................... 20
      LCD Connector (Board to Board)........................................................................... 21
      DC Connector.......................................................................................................... 22
      Bottom Connector ................................................................................................... 22
      SIM connector ......................................................................................................... 23
      Internal Signals and Connections............................................................................ 23
  Baseband Functional Description ................................................................................ 25
    Modes of Operation ...................................................................................................25
      No Supply................................................................................................................ 25
      Back-up ................................................................................................................... 25
      Acting Dead............................................................................................................. 25
      Active ...................................................................................................................... 25
      Sleep Mode.............................................................................................................. 26
      Charging .................................................................................................................. 26
      Battery ..................................................................................................................... 26
    Power Up and Reset ...................................................................................................27
      Power Up with PWR key ........................................................................................ 28
      Power Up when Charger is connected .................................................................... 28
      Power Up when Battery is connected ..................................................................... 28
      RTC Alarm Power Up............................................................................................. 29
    A/D Channels .............................................................................................................29
    FM Radio ...................................................................................................................30
      IR Module ............................................................................................................... 30
      SIM Interface........................................................................................................... 30
      ACI .......................................................................................................................... 31


Page 2                                         Nokia Corporation.                                                    Issue 2 06/03
                                                      Company confidential                 NHL-4J/
CCS Technical Documentation                                          System Module and User Interface

     External Accessory Regulator ................................................................................. 32
   External Audio ...........................................................................................................32
     External Microphone Connection ........................................................................... 32
     External Earphone Connections .............................................................................. 33
   Internal Audio ............................................................................................................34
     IHF Speaker & Stereo Audio Amplifier ................................................................. 34
     Internal Microphone................................................................................................ 34
     Internal Speaker....................................................................................................... 34
     IHF Speaker & Stereo Audio Amplifier ................................................................. 35
   Memory Block ...........................................................................................................36
     Security.................................................................................................................... 36
   Clock distribution ......................................................................................................36
     Audio Control.......................................................................................................... 37
     Accessory identification and Power Supply............................................................ 37
     Backup Battery........................................................................................................ 38
  RF Module Introduction............................................................................................... 39
   RF Frequency Plan ....................................................................................................40
   DC characteristics ......................................................................................................41
     Regulators................................................................................................................ 41
     Typical current consumption................................................................................... 42
     Power Distribution .................................................................................................. 43
  RF characteristics ......................................................................................................... 44
     Channel Numbers and Frequencies......................................................................... 44
     Main RF characteristics........................................................................................... 44
     Transmitter characteristics ...................................................................................... 44
     Receiver characteristics........................................................................................... 45
     RF Block Diagram .................................................................................................. 45
     RF Block Diagram NHL-4J/NHL-4JX ................................................................... 46
   Frequency Synthesizers .............................................................................................47
   Receiver .....................................................................................................................47
   Transmitter .................................................................................................................47
     Front End................................................................................................................. 47
     Power Amplifier...................................................................................................... 48
     RF ASIC Helga ....................................................................................................... 49
     AFC function........................................................................................................... 49
      Antenna .................................................................................................................. 49
  User Interface Modules ................................................................................................ 50
   UI Board TK8 ............................................................................................................50
     Keyboard ................................................................................................................. 50
     Display .................................................................................................................... 51
     LCD & Keypad Illumination................................................................................... 52
     Internal Speaker....................................................................................................... 52
     Buzzer...................................................................................................................... 52
     Internal Microphone................................................................................................ 52
   IR Module ..................................................................................................................53
   Vibra ..........................................................................................................................53




Issue 2 06/03                                     Nokia Corporation.                                                             Page 3
NHL-4J/NHL-4JX               Company confidential
System Module and User Interface                                                                      CCS Technical Documentation

Schematics/Layouts, TK8_12 module (A3 size)................................................................................................
   User Interface diagram 1 (ver.0.0 ed.16) ................................................................................................ 1
   Parts Placement diagram ............................................................................................................................ 2

Schematics/Layouts, TB3_18 module (A3 size)................................................................................................
   Block diagram 1 (ver.0.0 ed.4) ....................................................................................................................1
   Block Diagram 2 (ver. 0 ed. 275) ...............................................................................................................2
   System connector/baseband (ver.0.0 ed. 51) ..........................................................................................3
   User Interface (ver. 0.0 ed. 53) ...................................................................................................................4
   SIM reader (ver.0.0 ed. 15) ..........................................................................................................................5
   Power management (ver. 1.3 ed. 106) ...................................................................................................6
   DC/DC converter (ed. 0.0 ver.8) ..................................................................................................................7
   Old power discrete (ver. 0 ed.7) .................................................................................................................8
   Light filtering (ed. 2.0 ver 27)......................................................................................................................9
   Power thermal resistor ...............................................................................................................................10
   UPP_8M (ed. 2.0 ver. 101) ......................................................................................................................... 11
   UPP decoupling capacitors (ed.1.3 ver. 9) ............................................................................................ 12
   Flash (ed. 2.0 ver.28) .................................................................................................................................. 13
   Flash decoupling capacitors (ver. 2.0 ed.4) .......................................................................................... 14
   FM radio IC (ver.1.3 ed 145) .................................................................................................................... 15
   FM radio unit (Ver. 0.0 ed. 117) ............................................................................................................... 16
   RF/BB interface (ver. 1.3 ed. 40) ............................................................................................................ 17
   Audio (ver. 0.0 ed. 41) ................................................................................................................................ 18
   IR (Ver. 0.0 ed. 32) ....................................................................................................................................... 19
   IR thermal resistor (ver. 0.0 ed. 5) .......................................................................................................... 20
   RF Block Diagram (ver. 0.0 ed.5) ..............................................................................................................21
   RF shields (ver. 0.0 ed.6)............................................................................................................................ 22
   RF IC HELGA (ver. 0.0 ed.2) ...................................................................................................................... 23
   RX Front End and Antenna Switch (ver. 0.0 ed.2 ) ............................................................................ 24
   Power amplifier detection (ver. 0.2 ed. 3) ........................................................................................ 25
   Parts Placement TB3_18, bottom .......................................................................................................... 26
   Parts Placement TB3_18, top ................................................................................................................ 27
   Test Points TB3_18, top side ................................................................................................................... 28
   List of Test Points ........................................................................................................................................ 30




Page 4                                                   Nokia Corporation.                                                                Issue 2 06/03
                                   Company confidential                 NHL-4J/
CCS Technical Documentation                       System Module and User Interface


Glossary of Terms
       ACI         Accessory Control Interface

       ADC         Analog-Digital Converter

       AEC         Acoustic Echo Canceller

       AFC         Automatic Frequency Control

       AGC         Automatic Gain Control

       AIF         Application Interface

       ALWE        Background noise suppressor

       AMS         After Market Service

       API         Application Programming Interface

       ARM         Processor architecture

       ASIC        Application Specific Integrated Circuit

       BB          Baseband

       BT          Bluetooth

       CBus        Control Bus connecting UPP_WD2 with UEM

       CCI         Camera Control Interface

       CCP         Compact Camera Port

       CMT         Cellular Mobile Telephone (MCU and DSP)

       CPU         Central Processing Unit

       CTSI        Clocking Timing Sleep Interrupt

       COBBA_GJP   DCT3 RF-interface and audio codec ASIC with serial MAD interface

       COG         Chip On Glass

       CSP         Chip Scale Package

       CSTN        Color Super Twisted Nematic

       DAC         Digital-Analog Converter


Issue 2 06/03                   Nokia Corporation.                                Page 5
NHL-4J/NHL-4JX               Company confidential
System Module and User Interface                         CCS Technical Documentation

         DAI       Digital Audio Interface

         DB        Dual band

         DCS1800   Digital Cellular system at 1800 MHz

         DCT3      Digital Core Technology, 3rd generation

         DCN       Offset Cancellation control signal

         DLL       Dynamic Link Library

         DRC       Dynamic Range Controller

         DSP       Digital Signal Processor

         EGSM      Extended 

◦ Jabse Service Manual Search 2024 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo