Service Manuals, User Guides, Schematic Diagrams or docs for : LG Mobile Phone LG G5300 LG G5300 8

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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 this model.

 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. The manufacturer 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. The
     manufacturer will not be responsible for any charges that result from such unauthorized use.

   B. Incidence of Harm
     IIf 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 this phone 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 this model must be performed only by the manufacturer or its authorized
     agent. The user may not make any changes and/or repairs expect as specifically noted in this
     manual. Therefore, note that unauthorized alternations or repair may affect the regulatory status of
     the system and may void any remaining warranty.




                                                -4-
                                                                                1. INTRODUCTION



E. Notice of Radiated Emissions
  This model 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.

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

G. Interference and Attenuation
  An phone 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.




                                               -5-
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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