Service Manuals, User Guides, Schematic Diagrams or docs for : LG Car Audio TCH-600 GENERAL

<< 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 GENERAL documenatation <<

Text preview - extract from the document

 SECTION 1. SUMMARY
 SERVICING PRECAUTIONS
 Always disconnect the power source before:
  1) Removing or reinstalling any component, circuit board, module or any other instrument assembly.
  2) Disconnecting or reconnecting any instrument electrical plug or other electrical connection.
  3) Connecting a test substitute in parallel with an electrolytic capacitor in the instrument.

  CAUTION: A wrong part substitution or incorrect polarity installation of electrolytic capacitors may result in
           an explosion hazard.

 Do not defeat any plug/socket B+ voltage interlocks with which instruments covered by this service
   manual might be equipped.

 Do not apply power to this instrument and or any of its electrical assemblies unless all solid-state
   device heat sinks are correctly installed.

 Always connect a test instrument's ground lead to the instrument chassis ground before
   connecting the test instrument positive lead. Always remove the test instrument ground lead last.
  1) The service precautions are indicated or printed on the cabinet, chassis or components. When servicing,
     follow the printed or indicated service precautions and service materials.

  2) The Components used in the unit have a specified conflammability and dielectric strength. When
     replacing any components, use components which have the same ratings. Components marked                   in
     the circuit diagram are important for safety or for the characteristics of the unit. Always replace with the
     exact components.

  3) An insulation tube or tape is sometimes used and some components are raised above the printed writing
     board for safety. The internal wiring is sometimes clamped to prevent contact with heating components.
     Install them as they were.

  4) After servicing always check that the removed screws, components and wiring have been installed
     correctly and that the portion around the service part has not been damaged. Further check the insulation
     between the blades of attachment plug and accessible conductive parts.




                                                      - 1-2 -
 ESD PRECAUTIONS
[Electrostatically Sensitive Devices (ESD)]
 Some semiconductor (solid state) devices can be damaged easily by static electricity. Such omponents
 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 material).
 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 be installed.
   CAUTION: Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.
 8) Minimize bodily motions when handling 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.




                                                     - 1-3 -

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