Service Manuals, User Guides, Schematic Diagrams or docs for : Kenwood FM Stereo Modulator Car FM Stereo Modulator Car Kenwood KCA-R70FM B51-7967-00-SD

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B51-7967-00-SD


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    A                                                         B                                                                                    C                                                                                  D                                                                                                            E




                                                                                 MODULATOR UNIT
1
                                                                                                                                       REMOCON             R24

                                                                                                                                       RESET               4.7K




                                                                                                                                                                                        1000P




                                                                                                                                                                                                                                                                                                                                                           C11
                                                                                                                                                                                         C15




                                                                                                                                                                                                                                                                                                                                                                 22P
                                                                                                                                                                                                                                                                                                                                                                       X302               C12
                                                                                                                                       GND
                                                                   CN101                                                                                                                                                                                                                                                                                                                  22P
                                                                                                                                                                                                                                                                                                                                                                       4.5MHz
                                                                                                                                       DATA IN                                       C14
                                                                                    8               7                     6                                              27         1000P
                                                                                                                                                                                                                                                                                                                      R33




                                                                                                                                                                                                                                                                                                                                                                              80


                                                                                                                                                                                                                                                                                                                                                                                               79
                                                                                                                                                                                                                                                                                                                                                                                                    78
                                                                                                                                       DATA OUT            R23                                                                                                                                                        47K
                                                                                    5               4                     3                                              15




                                                                                                                                                                                                                                                                                                                                                                                                TEST1
                                                                                                                                                           1K




                                                                                                                                                                                                                                                                                                                                                                                   XOUT
                                                                                                                                       +6.6V                                                                                                                                                               Q6
                                                                                           2                    1                                                                                                                                                                                                                                                  1
                                                                                                                                                           R25                                                                                                                                             22K                                                          XIN
                                                                                                                                       LCD                                                                                                                                                                                                                        2
                                                                                                                                       CE                  1K                        C16                                                                                                                                                                                TEST2
                                                                                                                                                                         18         1000P                                                                                                                    22K                                                  3
                                                                                                                                                           R26                                                                                                                                                                                                          PG3
                                                                                                                                       LCD                                                                                                                                                                                                                        4
                                                                                                                                       CLK                 1K                                                                                                                                         R6                                                                PG2
                                                                                                                                                                                     C17
                                                                                                                                                                         16                                                                          Q1                                               22K            5.3V                                         5
2                                                                                                                                      LCD                 R22
                                                                                                                                                                                    1000P
                                                                                                                                                                                                                                                     22K                                                                                                          6
                                                                                                                                                                                                                                                                                                                                                                        PG1
                                                                                                                                       RESET               1K                                                                                                                                                                                                           PG0




                                                                                                                                                                                                                                                                                                             R31
                                                                                                                                                                                     C13




                                                                                                                                                                                                                                                                                                             47K
                                                                                                                                                                         17         1000P                                                                                                                                                                         7
                                                     F2                                                                                                                                                                                                      22K                                                                                                        PF3
                                                                         CN1                                                          R1                                                                                                                                                                                                                          8
                                                     3A                                                                   D2         2.4K         ZD1                                                                                                                                                                  7                              8                 PF2 REQC
                                                                     ACC                                                                                                                                                                                                      Q4                           Q5
                                                                                1                                                                                                                                                                                                                                                                                 9
                                                                                                                                                                                                                                                                                                                                                      9                 PF1 REQH




                                                                                                                                      4.7u50
                                                                                                                                                                                                                                                                                  4.7K                     4.7K                                                  10




                                                                                                                                          +

                                                                                                                                                   2.2K
                                                                                                               D5



                                                                                                                                        C3



                                                                                                                                                    R2
                                                                                                                                                                                                                                                                                                                                                   10                   PF0 CHCON
                                                                                                                                                                                                                                                                                                                                                                 11
                                                                                                                                                                                                                                                                                                                                                    11                  CI2 CH DATA C
                                                                                                                                                                                                                                                                                                                                                                 12
                                                                                                                                                                                                                                                                                                                                                    12                  SO2 CH DATA H
                                                                                                                                                                                                                                                                                                                                                                 13
                                                                                                                                                                                                                                                                                                                                                   13                   SCK2 CH CLK
                                                     F1                                                                                                                             12.4V       IC1                                            6.7V                                                                                                              14
                                                     3A                                                                              L1                                                                                                                                                                                                                                 PE0
                                                                     BATT                14.4V                                                          D15                  R7 10                                                                                 D304                    D305              D306                                                15
                                                                                2                                                                                                                IN OUT                                                                                                                                   15                            PD3 LCD DATA
                                                                                                                                                                                   2W                                                                                                                                                                            16
                                                                                                                                                                                                   GND                                                                                                                                    16                            PD2 LCD CLK




                                                                                                                                             C2 0.022
                                                                                                                                             1000u16


                                                                                                                                             1000u16




                                                                                                                                                                                                                                 C7 1u50
                                                                                                                                                                                                                                                                                                                                                                 17




                                                                                                                                                                                   10u16




                                                                                                                                                                                                                                                     D16
                                                                                                                                                                                                                                                                                                                                          17                            PD1 LCD RESE


                                                                                                                                                  +


                                                                                                                                                  +




                                                                                                                                                                                      +




                                                                                                                                                                                                                                     +
                                                                                                                          D1




                                                                                                                                               C33


                                                                                                                                                C1




                                                                                                                                                                                    C6
                                                                                                                                                                                                            0.6V                                                                                                                                                 18




                                                                                                                                                                                                  D303
                                                                                                                                                                                                                                                                                                                                          18                            PD0 LCD CE
                                                                                                                                                                                                                                                                                                                                                                 19




                                                                                                                                                                                                                                                                                                                                  27
                                                                                                                                                                                                                                                                                                                                                                        PC3
                                                                     GND                                                                                                                                                                                                                                                                                         20
3                                                                               3                                                                                                                                                                                                                                                                                       PC2
                                                                                                                                                                                                                                                                                                                                                                 21
                                                                                                                                                            Q2                                  BU 5V AVR                                                                                                                                                               PC1
                                                                                                                                                                                                                                                                                                                                                                 22
                                                                                                                                                                                                                                                                                                                                                                        PC0
                                                                                                                                                                R8                                                                                                                                                                                               23
                                                                                                                                                                22K                                                                                                                                                                                                     PB3
                                                                                                                                                                                                                                                                                                                                                                 24




                                                                                                                                                                                                                                                                                                                                                                                     PB1
                                                                                                                                                                                                                                                                                                                                                                                              PB0
                                                                                                                                                                                                                                                                                                                                                                                           27 PA3
                                                                                                                                                                                                                                                                                                                                                                        PB2
                                                                                                                                                    2.2K
                                                                                                                                                     R9




                                                                                                                                                                                                                                                                                                                                                                               25
                                                                                                                                                                                                                                                                                                                                                                                          26
                                                                                                                                                            Q3
                                                                                                                                                              22K                               D8                                                                                                                                                                                         R11
                                                                                                                                                                                                                                                                                                                                                                                           1K
                                                                                                                                                           22K




                                                                                                                                                                                                                                                                                                                                                                                           1000P
                                                                                                                                                                                                                                                                                                                                                                              R12
                                                                                                                                                                                                                                                                                                                                                                              10K

                                                                                                                                                                                                                                                                                                                                                                                            C8
4
                                                                                                                                             D9




                                                           D101          12.6V                                      R106                                                                                                                    12.6V



                                                                                                                                                                                                                                                                                                             D14
                                                                                                                     10K
                                                                          IC101                                     6.4V IC101                                                            6.4V               IC302                                                                                                     5V AVR                                           RIPPLE
              R102               C104                                                                                                                                 R27
              1.5K               10u16                               4
                                                                          (4/4) R105                                                                                  10K
                                                                                                                                                                                                             (1/2)                                                                                                                                                      FILTER
                                                              12
                                                                                        10K
                                                                                                                                (3/4)                                                              3                                                                                                                  IC4
        L                                                                  14                                   10                                                                                                           1
                                    +                         13                                                                      8                                                            2                                                                                             13.6V                                                           5.6V     Q9               4.8V
                                                                                                                                                         1u50
                                                                                                                                                            +
                          C103




                                               R104




                                                                                                                                                          C34




                                                                                                                    9
                          0.01




                                                                                                                                                                                                                                                                                                                       IN OUT
                                               10K




                                                                     11
                                                                                                                                                                         R28 10K




                                  C105                                                  R107                                          6.4V
                                                                                                                                                    220u25




                                                                                                                                                                                    100u10




                                                                                                                                                                                                                                                                                                                         GND                                       R34               5.6V
                                                                                                                                                                                                                                             IC302
                                                                                                                                                        +




                                                                                                                                                                                        +
                                                                                                                                                     C20




                                                                                                                                                                                     C19




                                 220u10                                                 10K                                   R108
                   R103
                   6.8K




                                                                                                                                                                                                                                                                                                                                                                   1.8K



                                                                                                                                                                                                                                                                                                                                               C35 0.01
                                                                                                                                                                                                                             R306




                                                                                                                                                                                                  6.4V
                                                                                                                                                                                                                                                                                                           470u16
                                                                                                                                                                                                                             10K




                                     +                                                                                                                                                                                                       (2/2)                                    6.4V
                                                                                                                                                                                                                                                                                                               +
                                                                                                                                                                                                                                                                                                            C24




                                                                                                                              10K                                                                                                                                                                                    0.6V




                                                                                                                                                                                                                                                                                                                                                                        1000u10
                                  C339                                                  6.4V                                                                                                                                                                 5               8
                                                     ISO




                                                                                                                                                                                                                                                                                                                                                                            +
                                                                                                                                                                                                                                                                                                                                                                          C30
                                                                                                                                                                                                                                                                                      7
                                                                                                                                                                                                                                                                                                                        D13

                                   0.1                                                                                                                                                                                                                       6
        G
                                                                                                                    6.4V            6.4V                                                                           6.4V                                                      4
                                  C205                                                                                                                                                                                                 R308
5                                220u10                                          R207 10K                                     R208                                                                                                     150K
                   R203
                   6.8K




                                     +                     6.4V                                                               10K
                                                                                                                                                                                                                                                                                       C312
                                                                                                                                                                                                                                                                                       0.01




                                                                                                                                                                                                                                          C310
                          C203




                                               R204
                          0.01




                                                                                                                    6
                                               10K




                                                                                        R205                                                                               C314
              R202               C204                          2                                                                      7                                   0.22u50                                                           33P
                                                                           1            10K                         5
                                                                                                                                                                                                                                                                                                                                                   R35
                                                                                                                                                                                                                                                                                                                                                   150




              1.5K               10u16                6.4V 3                                                                                                                +                                                                                                                                D302
                                                                                                                                                                                                                             R307
                                                                                                                                                                                                                             4.7K




        R                                                                                                                       IC101                                                                                                                        0V
                                    +                                 IC101             6.4V                                                                               R314
                                                                                                                                (2/4)                                       47K
                                                                      (1/4)                                     R206
                                                              D201                                                  10K
                                                                                                                                                                                                                                                                                                                                                                                                    3
                                                                                                                                                                                                                                                                                                                                   C305 0.01
                                                                                                                                                                                                                                                                                                                        R328




                                                                                                                                                                                                                                                                                                                                                   100u10
                                                                                                                                                                                                                                                                                                                         270




                                                                                                                                                                                                                                                                                                                                                       +
                                                                                                                                                                                                                                                                                                                                                    C32
                                                                                                                                                                                                                             0.033
                                                                                                                                                                                                                             C308




                                                           12.6V                                                                                                                                                                                                                                           3.7V       4.5V
                                         C114                                                                                                                                                                                                                                              R302
                                                                                                                                                                                                                                                                                                                                                                              45




                                                                                                                                                                                                                                                                                           12K                                                                     C335         R317
                                         0.015                                                                                        C108                                                                                                                                                                                         Q303                           4.7u50        2.4K
                                                           IC102                                                                      1000P
                                        6.4V               (2/2)                                                                                                                                                                                                                           C306 R301                                                               +
            R114      R115       R116                                                                                                                                                                                                                                                                                      2.5V
                                                                                                                                                                                                                                                                                                                                                                                     R346


                                                                                                                                                                                                                                                                                                                                                                                                        R318
                                                                                                                                                                                                                                                                                                                                                                                     4.7K




                                                                                                                                                                                                                                                                                           220P 150K
                                                                      C106 R109                                                        R112                                                     C111
6
                                                                                                                                                                                                                                                                                                                                               R316 1.2K




            6.8K      6.8K       6.8K            5        8
                                                                                                                                                                                                                              VR301
                                                                                                                                                                                                                                                                              R348
                                                                                                                                                                                                                                                                              220K




                                                                      10u16 1.8K                                                       75K                                                      1u50
                                                                                                                                                                                                                                                                                                                              2200P




                                                               7
                                                                                                                                                                                                                                                                                                                              C336




                                                 6                                                                                                                                                                             33K
             3300P
             C112




                                  C113
                                  180P




                                                                       +                                                                                                                           +
                                                                                                                                                                  C109


                                                                                                                                                                          C110
                                                                                                                              R339




                                                                                                                                                                                        R113
                                                                                                                                                                                        100K



                                                                                                                                                                                                         18 3.6V
                                                                                                                                                                                                                   17 3.6V



                                                                                                                                                                                                                                           15 3.6V
                                                                                                                                                                                                                                                       14 4.2V
                                                                                                                                                                                                                                                                 13 3.2V
                                                                                                                               390




                                                                                                                                                                   0.1


                                                                                                                                                                           0.1
                                                                                                   C107 270P




                                                                                                                                       R343                                                                                                                                                           FM ST
                                                                                        R110 390




                                               6.4V
                                                                                                                R111 1K




                                                                                                                                       100 Q308                                                                                                                                                       MODULATOR                                                                Q310
                                                                                                                                                                                                                                 16




                                                                                                                                                                                                                                                                             12
                                                                                                                                                                                                                                                                                      11
                                                                                                                                                                                                                                                                                           10
                                                                                                                              R340
                                                                                                                               390




                                                     L.P.F.                                                                                  



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