Service Manuals, User Guides, Schematic Diagrams or docs for : LG Car Audio tcc-6020 adjustments

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adjustments


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 4. ADJUSTMENTS
1. Test & Adjustment point




  A

  B

                                                                        T101
  C

  D

  E                                                                     VR301




                                              
                                Figure 1. MAIN PCB Board




                             Figure 2. RF PCB Board


                                      -6-
2. FM Adjustment
                                                   Power Supply                                PRE OUT


     Stereo modulator                                    GND
                                                         (Black Lead)
                                                       (Red Lead)
                                                         (Yellow Lead)                                                          VTVM            SCOPE
                              SSG
                               EXT
                                                                              Unit     ANT
                               MODE
                                                                                       Jack.                                   IN OUT
                                    OUT

       AUDIO OSC




                                                                           Figure 3.


(1) The impedance of FM antenna terminal is 75.
    Therefore, connect coaxial cable (3C-2V etc.) between FM SG and antenna terminal when wiring.

                                       FM SSG                     Available                       Antenna
                        Item
                                      Attenuator                   Power                          Terminal
        Type                          Indication                   Ratio                          Voltage
        Open indication                    0dB                     5.2dBf                         6 dB/



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