Service Manuals, User Guides, Schematic Diagrams or docs for : LG Mobile Phone LG G7020 LG G7020 6

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                                                                                 1. INTRODUCTION



1. INTRODUCTION

 1.1 Purpose
    This manual provides the information necessary to repair, calibration, description and download the
    features of the phones.


 1.2 Regulatory Information

  A. Security
    Toll fraud, the unauthorized use of telecommunications system by an unauthorized part (for
    example, persons other than your company's employees, agents, subcontractors, or person
    working on your company's behalf) can result in substantial additional charges for your
    telecommunications services. System users are responsible for the security of own system.
    There are may be risks of toll fraud associated with your telecommunications system. System users
    are responsible for programming and configuring the equipment to prevent unauthorized use. LGE
    does not warrant that this product is immune from the above case but will prevent unauthorized use
    of common-carrier telecommunication service of facilities accessed through or connected to it. LGE
    will not be responsible for any charges that result from such unauthorized use.

  B. Incidence of Harm
    If a telephone company determines that the equipment provided to customer is faulty and possibly
    causing harm or interruption in service to the telephone network, it should disconnect telephone
    service until repair can be done. A telephone company may temporarily disconnect service as long
    as repair is not done.

  C. Changes in Service
    A local telephone company may make changes in its communications facilities or procedure. If
    these changes could reasonably be expected to affect the use of the phones or compatibility with
    the network, the telephone company is required to give advanced written notice to the user,
    allowing the user to take appropriate steps to maintain telephone service.

  D. Maintenance Limitations
    Maintenance limitations on the phones must be performed only by the LGE or its authorized agent.
    The user may not make any changes and/or repairs expect as specifically noted in this manual.
    Theref ore, note that unauthorized alternations or repair may affect the regulatory status of the
    system and may void any remaining warranty.

  E. Notice of Radiated Emissions
    The phones complies with rules regarding radiation and radio frequency emission as defined by
    local regulatory agencies. In accordance with these agencies, you may be required to provide
    information such as the following to the end user.




                                               -3-
1. INTRODUCTION



   F. Pictures
      The pictures in this manual are for illustrative purposes only; your actual hardware may look slightly
      different.

   G. Interference and Attenuation
      An the phones may interfere with sensitive laboratory equipment, medical equipment, etc.
      Interference from unsuppressed engines or electric motors may cause problems.

   H. Electrostatic Sensitive Devices

                                              ATTENTION
      Boards, which contain Electrostatic Sensitive Device (ESD), are indicated by the       sign. Following
      information is ESD handling:


        Service personnel should ground themselves by using a wrist strap when exchange system
        boards.
        When repairs are made to a system board, they should spread the floor with anti-static mat
        which is also grounded.
        Use a suitable, grounded soldering iron.
        Keep sensitive parts in these protective packages until these are used.
        When returning system boards or parts like EEPROM to the factory, use the protective
        package as described.




                                                   -4-
                                                                          1. INTRODUCTION



1.3 Abbreviations
   For the purposes of this manual, following abbreviations apply:

       APC                  Automatic Power Control
       BB                   Baseband
       BER                  Bit Error Ratio
       CC-CV                Constant Current 

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