Service Manuals, User Guides, Schematic Diagrams or docs for : Samsung Audio HW-D450 HWD450XN_ET-SB-EX-SI_1314874651

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                                     Crystal Surround Air
                                     Track
                                      Model Name                     HW-D450
                                      Model Code                     HW-D450/XN




SERVICE                                            MANUAL
Crystal Surround Air Track




           HW-D450




    Refer to the service manual in the GSPN (see the rear cover) for more information.
                                                                                                               1. Precaution



1. Precaution
Follow these safety instructions while servicing the ESD to prevent damage and to protect against potential hazards
such as electrical shock and X-rays.




1.1. Safety Precautions

1) When reinstalling the chassis and its assemblies, be sure to restore all of the protective devices, including the control
   knobs and the compartment covers.

2) Make sure that there are no cabinet openings through which people (particularly children) can make contact with
   dangerous internal components.

3) Design Alteration Warning:
    Never alter or add to the mechanical or electrical design of the unit.
    Example: Do not add auxiliary audio or video connectors. Such alterations might create a safety hazard.
    Also, any design changes or additions will void the manufacturer's warranty.

4) Leakage Current Hot Check Figure 1.1 AC Leakage Test:

           WARNING

     Do not use an isolation transformer during this test. Use a leakage-current tester or a metering system that complies
     with American National Standards Institute (ANSI C101.1, Leakage Current for Appliances), and Underwriters
     Laboratories (UL Publication UL1410, 59.7).

    With the unit completely reassembled, plug the AC cord directly into a 120V AC outlet. With the unit's power switched
    from the ON to the OFF position, measure the current between a known ground and all exposed metal parts.
    Known Grounds - Earth
    Known Metal parts - screwheads, metal cabinets, etc.




                                        LEAKAGE (READING
             DEVICE                     CURRENT SH OULD NOT BE
             UNDER                       TES TER ABOVE 0.5mA)
              TES T
                         TES T ALL
                      EXPO S ED METAL
                        SU RFACES
                 2-WIRE CORD
                ALSO TES T WITH
                PLUG REVER S ED
                   (US ING AC                         EARTH
                 ADAPTER P LUG                       GROUND
                 AS R EQ UIRED)

    Figure 1.1 AC Leakage Test




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