Service Manuals, User Guides, Schematic Diagrams or docs for : . Rare and Ancient Equipment Vitek Car Audio Vitek VT-3634 VITEK TF6850USB MAIN SCH

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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 EC807        4U7                           R827
             Q301                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     R814              Q802                       R811 C804                                                                                                                                                                                                                                                    R821         22K                          OPTIONAL
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            22K
             9014C
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           CDC SBY
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          9014C                    47K
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         104                                                         AUX/CDC OPTIONAL
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  R830 100                                                      R822         22K                                    EC802                10UF
                                                                                       CN201 TUNER008                                                                                                                                                                                                                            C209                                                                                                                                                                                                                                                                                1K                                                                                                                   9
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               R812                                                                                             B A B=1 GND                                                                                                                                                                                                                                                                 AUX-L
                                                                                                                                                                                                                                                                                                                                 104                                                                                                                                                                                                                                                                                                                                                                                                     10     A (AUX) VEE                        78                                                                                                                                                         22K
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         EC806                                                  R823




                                             S METER
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               10K




                                                                                                                                                                                                               AM LOC

                                                                                                                                                                                                                         FM LOC




                                                                                                                                                                                                                                                                      FM OSC
                                                                                                                   AMOSC
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      Q317                                                                                                                                                                                               11




                                                           RDS RF
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   6




                                                                                                                                                  AM/LW

                                                                                                                                                            AM VT
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         C310




                                                                                                                                                                                                                                                                                       FM VT
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                X3       INH




                                                                                                        MONO
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           CDC L                                                                                                                                                                                                                                                          47UF                                                                22K




                                                                                   RA-R
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         12                                        5




                                                                            RA-L




                                                                                                                                                                                                                                                              GND
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                X0 A B=0 Y1




                                                                                                                                           AGC




                                                                                                                                                                                                        AM+
                                                                                                                             GND




                                                                                                                                                                                                                                                   GND
                                                                                                                                                                                                                                      FM+
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    R831




                                                                                                                                     RA+
                   R301                                                                                                                                                                                                                                                                                                                                                                                                                             R335                                                                              882                102                                                                                                                                                       R809




                                                                     AF




                                                                                           SD
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         13
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      1                 0                                                                                                                                          4




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            R824
                                                                                                                                                                                                                                                                                                                                                               Q314                                                                                                                                                                                                                                                                                                                                                                             X (CDC) Y3




                                                                                                  IF
                                                                                                                                                                                                                                                                                                                                                                                                                                                     Q315                                                                                                                                                                                                                    R810                                                        14                                        3
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              8        7        6         5                                                                                            AUX G




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                R338 10 1/4W
                                              1             2        3      4      5       6      7     8              9     10      11    12     13       14                                           15         16     17          18              19       20       21                22
                                                                                                                                                                                                                                                                                                                                                                                                                                                 10K 9013G                                                                      EC305                                                                      CDC ONLY R810
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    R805
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       R809
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       R803
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               0                                    0                    15
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                X1        Y
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    IC801 Y2                       2                                                                                          IC802                                                 EC805                                       R820 EC804                47UF
                                                                                                                                                                                                                                                                                                                                                               9012G




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               470 1/6W
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                X2
                     1K       R302                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       16                                                                                                                                                                                         10UF
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           AUX ONLY R809               R810                                                                                                                                                                                                                                 NM4558B
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   1
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                VDD       Y0                                                                                                                                                                                                                     22K




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            22K
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              ZD302               47UF                                                                              R803               R805                   EC801                                                                                                                                                                                                                                                      4
                              1K2                                                                                                                                   R314                                                                                                                                                                                                                                      R334                                                                                                                                                                                                                                                                                          C801                                                                                                      R803                                              EC808
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              1        2        3
                                                                                                                                                                                                                                                                                                                                 C309                                                                                                                                                                           8V2                                                                                                                    R810                    47UF                                                                      R813                CD4052                                                                                                                                                                                                                                                         AUX-R
                                                                                                                                                                             10K                                                                                                                                                 104                                                                           1K                                                                                                                                                                                           CDC+AUX                    R805                                                                    104                       1K
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 R336                                                                                                                                                  R809                  R808                                                                                                                                                        0                                                                                                                   22K
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             R337                                                                                                                                                                                                                                                                                                                                                               R825                                                         EC803              10UF
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  2K2                                                                                                                                                  R803                  10K                                                                                                                                                                                                        4U7
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           CDC R
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       R829
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        C802 R804 R805                                                                                                                 22K
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        R806                                                                                                                                                                                               R828                     R826       22K
D                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    D
                                                                                                                                                                                                                                                                                                                                                      R333                                                                                                                                                              R423                Q401                                                                          C803                            R807                                                                                                10K  0
                                                                                                                                                                     FM BAND                                                                                                                                                                                                                                                                            Q316                                                                                              R421 10K                                                                                                                                                                                                                                                                                                       MUTE                               22K
                                                                                                                                                                     FMOSC                                                                                                                                                                                                                                                                                                                                              470K                9014C
                                                            D301                                                                                                                                                                                                                                                                                          2K2             C311                                                                                                                          C426                                             R422
                                                                                                                                                                                                                                                                                                                                                                                                                                                        9014C                                                                                                                                              R-CD R415
                                                           IN4148                                                                                                                                                                                                                                                                                                           104                                                                                                                                                                          2K2
                                                                                                                                                         A/L
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         104                                                    R420                                              4K7                                                                                                                                                                                                                                                                                                                EC708                                                             R732
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          47K                                                                                                                               EC714
                                                                                                                                                      AMOSC          LOC                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 22uF EC401                                                              R720 22K R724
                    Q302                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    1K




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        1UF
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            R424                                                                           L-CD




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   C406
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   1uF




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   C401 104
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             104
                                                           ZD301                                                                                                                                                                                                                                                                                                                                   33mH                                                                                                                                                                                                                                                                                                                                                                                                                                                                          R721 22K




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                272M
                                                                                                                                                                                                                    C204




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              1uF
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           104
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        4u7
                    9014C                                                                                                  Q306                                      AM+                                                                                                                                                                                     L401                                      R428                                                    8K2                                                                      R434                              EC411                                 R414                 4U7                                                                                                                                                                                                                                                                                             22uF                                                                220                                       R736




                                                                                                

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