Service Manuals, User Guides, Schematic Diagrams or docs for : LG Audio FA-3000AWE FA-3000AWE Service Manual

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SERVICE MANUAL
MODEL: FA-3000AWE
                    DIGITAL HOME
                    CINEMA SYSTEM
                    SERVICE MANUAL
                               POWER
                                            VOLUME   INPUT SEL




                              ON/STANDBYY




                       MODEL: FA-3000AWE
                                                              CONTENTS


ESD PRECAUTIONS ........................................................................................................................................ 2

SPECIFICATIONS ............................................................................................................................................ 3

TROUBLESHOOTING ...................................................................................................................................... 4

IC VOLTAGE SHEET ....................................................................................................................................... 6

BLOCK DIAGRAM ...............................................................................................................................................9

SCHEMATIC DIAGRAMS ............................................................................................................................... 10

WIRING DIAGRAM .......................................................................................................................................... 14

PRINTED CIRCUIT DIAGRAMS ...................................................................................................................... 15

SPEAKER ......................................................................................................................................................... 20

REPLACEMENT PARTS LIST ......................................................................................................................... 21




                                                                                -1-
                                  ESD PRECAUTIONS
Electrostatically Sensitive Devices (ESD)
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components
commonly are called Electrostatically Sensitive Devices (ESD). Examples of typical ESD devices are integrated
circuits and some field-effect transistors and semiconductor chip components. The following techniques should
be used to help reduce the incidence of component damage caused by static electricity.
1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off
    any electrostatic charge on your body by touching a known earth ground. Alternatively, obtain and wear a
    commercially available discharging wrist strap device, which should be removed for potential shock reasons
    prior to applying power to the unit under test.
2. After removing an electrical assembly equipped with ESD devices, place the assembly on a conductive
   surface such as aluminum foil, to prevent electrostatic charge buildup or exposure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ESD devices.
4. Use only an anti-static solder removal device. Some solder removal devices not classified as "anti-static" can
   generate electrical charges sufficient to damage ESD devices.
5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ESD
   devices.
6. Do not remove a replacement ESD device from its protective package until immediately before you are ready
   to install it. (Most replacement ESD devices are packaged with leads electrically shorted together by
   conductive foam, aluminum foil or comparable conductive materials).
7. Immediately before removing the protective material from the leads of a replacement ESD device, touch the
   protective material to the chassis or circuit assembly into which the device will by installed.

  CAUTION : BE SURE NO POWER IS APPLIED TO THE CHASSIS OR CIRCUIT, AND OBSERVE ALL OTHER
            SAFETY PRECAUTIONS.


8. Minimize bodily motions when handing unpackaged replacement ESD devices. (Otherwise harmless motion
   such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can
   generate static electricity sufficient to damage an ESD device).




 CAUTION. GRAPHIC SYMBOLS

               THE LIGHTNING FLASH WITH APROWHEAD SYMBOL. WITHIN AN EQUILATERAL
               TRIANGLE, IS INTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE
               OF UNINSULATED "DANGEROUS VOLTAGE" THAT MAY BE OF SUFFICIENT MAGNITUDE
               TO CONSTITUTE A RISK OF ELECTRIC SHOCK.

               THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS INTENDED TO ALERT
               THE SERVICE PERSONNEL TO THE PRESENCE OF IMPORTANT SAFETY INFORMATION
               IN SERVICE LITERATURE.




                                                      -2-
                                    SPECIFICATIONS
  Power supply                      AC230V, 50/60Hz
  Power consumption                 150W
  Mass                              12.4kg
  External dimensions (W X H X D)   23.5 X 430 X 483mm
  Operating conditions              Temperature : 5

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