Service Manuals, User Guides, Schematic Diagrams or docs for : LG Audio FJ-X4AX fx4ic

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INTERNAL BLOCK DIAGRAM OF ICs
IC201 LA1837
                                                               FM SD                                                                                                                                AM-STEREO
               OSC                  VT                         BAND-W
                                                                                                                                                                                                    LR-INPUT
               BUFF




                                                                                            AM AGC
                                                                                                                                                                                                  L      R L-OUT R-OUT




                                                OSC
                                                                                                                                                            L.P.F.                     L.P.F.
                      AM SD
                                                          +                      +                     +                                       +




                                                                                RF
                      ADT

                                                                                                                                                                                                  -             +


                               30           29                 28          27          26                     25             24       23           22            21               20            19          18             17        16
                                                                                                                                                                  3     5
                                                              REG
                                                                                                                                                                 DECODER
                              ALC                             AM        AM                                                                                      ANT 1-BIRDIE
                                          AM                          RF AMP
                                          OSC                 MIX
                              RUFF                                                                                                                                                                    MUTE
                                                                                                                                                        P-DET
                                                                                                                                                          O                STEREC
                                                                                                                                                                             SW
                                                                                AGC

                                                                    AMIF               DET
                                                                                                                                                           VCO                    FF          FF                  FF            PILOT
                                                  SD                                                                                                      304KHz                 38K        38K 

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