Service Manuals, User Guides, Schematic Diagrams or docs for : panasonic Audio SA-DV280 Viewing SGML_VIEW_DATA EU SA-DV280EG SVC msc_a4

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msc_a4


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    SCHEMATIC DIAGRAM-1                                                           NOTE:
                                                                                  The number which noted at the connectors on the schematic diagram as "SCHEMATIC DIAGRAM-1" or "SCHEMATIC DIAGRAM-2"
     A OPERATION CIRCUIT                                                          indicates the schematic diagram serial number located on the left corner in the schematic diagram.




                                 FL901 (A2BB00000084)
       R997




H
        150




                                                                                                                                                                       FL DISPLAY


                                      1 2                   5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50                                                                53 54
                  R996
                   150




                                                                                                                                                                                                                                                  25V22 25V22
                                                            Z Y X W V U T S R Q P O N M L K J                                                              I H G F E D C B A A B C D F G H I                            J K L M N O P Q R S T U




                                                                                                                                                                                                                                                  C927 C919
      MA4030MTA




                                  25V22 25V22
                                  C928 C920
        D973
       1000P




                         35V33




G
       C921




                         C922




                                                                                                                                                                                                                                                                        A
                                                                                                                                                                                                                                                                        B
                                                                                                                                                                                                                                                                        C
                                                                                                                                                                                                                                                                        D
                                                                                                                                                                                                                                                                        E
                                                                                                                                                                                                                                                                        F
                                                                                                                                                                                                                                                                        G
                                                                                                                                                                                                                                                                        H
                                                                                                                                                                                                                                                                         I
F                                                                                                                                                                                                                                                                       J
                                                                                                                                                                                                                                                                        K
                                                                                                                                                                                                                                                                        L
                                                                                                                                                                                                                                                                        M
                                                                                                                                                                                                                                                                        N
                                                                                                                                                                                                                                                                        O
                                                                                                                                                                                                                                                                        P
                                                                                                                                                                                                                                                                        Q
                                                                                      R907                 R906            R905                 R904               R903       R902                  R901                    R925
                                                                                      3.3K                 2.2K            1.8K                 1.5K               1.2K        1K                    820                     1K                                         R
                                                                                                                                                                                                                                                  X                     S
                                                           (INPUT SELECTOR)




                                                                                                                           (FM AUTO/MONO)




                                                                                                                                                        REC)




                                                                                                                                                                                                                               C908
                                                                                                                                                                                                                               470P
                                                                                                                                                                                                                                                                        T
                                                                                                           (TUNING MODE)




                                                                                                                                                                              (CLOCK/ TIMER)




                                                                                                                                                                                                                 R922
                                                                                                                                                                   (-DEMO)




                                                                                                                                                                                                                 10K
                                                                                                                                                                                                     ( / )
                                                                                                                                                                                                                                                                        U
                                                                                      (SET)




E
                                                                                      S907




                                                                                                                S906




                                                                                                                                 S905




                                                                                                                                                                                                      S901
                                                                                                                                                                                  S902
                                                                                                                                                                     S903
                                                                                                                                                   S904
                                                                  S908




                                                                                                                                                PLAY/




                                                                                                                                                                                                                                                                        V
                                                                                                                                                                                                                                                                        W
                                                                                                                                                                                                                                                  E                     X
                                                                                                                                                      (




                                                                                                                                                                                                                                                                        Y
                                                                                                                                                                                                                                                                        Z
                                                                                                                                                                                                                 R921




                                                                                                                                                                                                                                      R944
                                                                                                                                                                                                                 10K




                                                                                                                                                                                                                                      2.2K
                                                       R912                           R911                 R910            R909                 R916               R915       R914                  R913                    R924
                                                       4.7K                           3.3K                 2.2K            1.8K                 1.5K               1.2K        1K                    820                     1K
                                                                                                                                                                                                                                                  W
                                                             (TUNER/ BAND)




                                                                                                                                                                                                                               C907
                                                                                                                                                                                                                               470P
                                  S.WOOFER)




                                                                                      (TUNING, )




                                                                                                           (TUNING, )
                                    (DIGITAL




                                                                                                                                                                              (PTY)
                                      S913




                                                                                                                                                                              S915




                                                                                                                                                                                                     S914
                                                                                                              S910
                                                                                         S911




                                                                                                                                                                                                     (PS)
                                                                 S912




D



                                                                                                                                                                                               (RDS DISP MODE)




                                                                                                                                                                                                    D974
C                                               2                                                                                                                                                  MA165TA
                                                3                                                                                                                                                                                                 V
                                                                                                                                                                                                                              C904



                                                                                                                                                                                                                                      C924




                                                6                                                                                                              S
                                                                                                                                                                                                                              0.01




     JK903
                                                                                                                                                                                                                                       0.1
                                                                                                   0.047
                                                                                                   C395




     PHONES                                     4
     3.5mm STEREO                               5
                                                7
                                                1
                                 W905
                                                                                                                                                               T
                                                                              0.047
                                                                              C396
                                                    C923
                                                     0.1




B




A




                  1                                                           2                                                             3                                                  4                               5                                    6    7
HEMATIC DIAGRAM-2"
                                                        : POSITIVE VOLTAGE LINE                                           : NEGATIVE VOLTAGE LINE                        :AUDIO SIGNAL LINE

                                                                                              A
                                                                                              B
                                                                      -30.1V                  C




                                                                                           A B C D E F G H I                           J K L M N O P Q R S T                                   U V W X

                                                                                                                                                                                                                                           5.1V




                                                                                      -23.4V
                                                                                      -20.5V
                                                                                      -26.3V
                                                                                      -26.3V

                                                                                      -23.4V
                                                                                      -20.5V
                                                                                      -26.2V

                                                                                      -26.2V
                                                                                      -26.2V
                                                                                      -26.1V
                                                                                      -26.3V
                                                                                      -23.5V
                                                                                      -23.5V
                                                                                      -23.5V
                                                                                      -25.5V
                                                                                      -27.5V
                                                                                      -27.5V
                                                                                      -25.6V
                                                                                      -29.2V
                                                                                                                                                                                                                                          Q901




                                                                                      5.1V




                                                                                                                                                                                                                      R949
                                                                                                                                                                                                                      4.7K
                                                                                                                                                                                                                                          UN4212TA




                                                                                                                                                                                                                                                                   50V2.2
                                                                                                                                                                                                                                                                    C914
                                                                                                                                                                                                                                          RESET
                                                                                         50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31




                                                                                            P1
                                                                                           P12
                                                                                           P11
                                                                                           P10



                                                                                            P8
                                                                                            P7
                                                                                            P6
                                                                                            P5
                                                                                            P4
                                                                                            P3
                                                                                            P2

                                                                                            1G
                                                                                            2G
                                                                                            3G
                                                                                            4G
                                                                                            5G
                                                                                            6G
                                                                                            7G
                                                                                            P9
                                                                                          VDD3




                                                                                                                                                                                                                      R950
                                                                                                                                                                                                                       100
                                                                                                                                                                                                                                                            0V
                                                                  -30.1V                                                                                                            -25.6V




                                                                                                                                                                                                                                                                  MA165TA
                                                                           51   -VP                                                          FM / AM                 8G 30
                                                                  -29.3V                                                                               4V                            5.1V                                                5V




                                                                                                                                                                                                                                                                   D904
                     A                                                     52   P13                                                                    0V REMOCON 29                                                                A
                                                                  -29.3V                                                                                                             2.6V
                     B                                                     53   P14                                                                   -30V RDS DATA 28                                                              B
                                                                  -29.3V                                                                T    5.5ms.                                  2.6V
                     C                                                     54   P15                                     IC901                                 RDS CLK 27                                                            C
                                                                  -26.3V                                                                      FM / AM                                0.6V
                     D                                                     55   P16                                     C2BBFD000317                            HP SW 26
                                                                  -20.5V                                                                                                             5.1V
                     E                                                     56   P17                                     SYSTEM CONTROL/                  4.2V MIC DET 25
                                                                 -29.3V                                                 FL DRIVE                         P-P VR JOGA 24              0V
                     F                                                     57   P18                                                                                                                                                 D
                                                                 -29.3V                                    FM / AM              FM / AM                                              0V
                     G                                                     58   P19                                        4V                 F=6MHz          VR JOGB 23                                                            E
                                                                 -29.3V
                     H                                                     59   P20                                        0V             3.3V                NC(GND) 22                                                                                                              U
                                                                 -23.5V                                                                   P-P                                       1.4V
                      I                                                    60   P21                                       -30V                                 SH REQ 21                                                                                                              J
                                                                 -20.5V                                   T 5.5ms.                                                                  5.1V
                     J                                                     61   P22                                             F=6MHz                   KEY KARAOKE 20
                                                                 -23.4V                                                                                                             5.1V
                     K                                                     62   P23                                            FM / AM                         KEY TU 19
                                                                 -23.4V                                                                                                             5.1V
                     L                                                     63   P24                                                                               VDD1 18
                                                                 -23.7V                                                                  5.2V                                       2.3V                       R953           100




                                                                                                                                                                                                                                                      1000P
                     M                                                     64   P25                                                                            XC OUT 17




                                                                                                                                                                                                                                                      C925
                                                                 -20.7V                                                                  P-P                                        2.3V
                     N                                                     65   P26                                                                               XC IN 16
                                                                 -29.6V                                                       F=32.7kHz FM / AM
                     O                                                     66   P27                                                                                 Vss 15
                                                                 -29.6V                                                                                                             2.7V
                     P                                                     67   P28                             FM / AM                                          X OUT 14
                                                                 -29.6V                                                                            5.2V                             1.6V
                     Q                                                     68   P29                                                                P-P             X IN 13
                                                                 -23.7V                                                   2V                                                        5V                                                              R956            R957
                     R                                                     69   P30                                       P-P                                   RESET 12                                                                             1K              1K
                                                                 -26.6V                                                                F=32.7kHz                                    2.2V
                     S                                                     70   P31                                                                               AC IN 11                                                                                                            H
                                                                 -26.5V                                      F=32.7kHz                                                              0V




                                                                                                                                                                                                                                                      C915
                     T                                                     71   P32                                                                        SEL/ TUNER 10




                                                                                                                                                                                                                                                      0.01
                                                                    5.1V




                                                                                                                                                                                        R976
                                                                                                                                                                                        100K
                                                                           72   VDD4                                               5V                       SEL TUNER 9
                                                                 -29.5V
                     U                                                     73   P33                                                                     5V               8
                                                                 -29.5V                                                                                                                                                                                    R940
                     V                                                     74   P34                                              0V                                      7                                                                                  1K
                                                                 -26.5V                                                                                                             5.1V
                     W                                                     75   P35                            2V /2ms.DIV.                              0V ST/ AV.6CH 6                                                                                                              G
                                                                 -17.2V                                                                 2V /2ms.DIV.                                5.1V                                                            R929          1K
                     X                                                     76   P36                                                                           LC72 CK 5                                                                                                               A
                                                                   -5.3V                                                     5V                                                     4.6V                                                            R930          1K
                     Y                                                     77   P37                                                                         LC72 DI/ ST 4                                                                                                             B
                                                                 -10.3V                                                                                                             0V                                                              R932          1K
                     Z                                                     78   P38                                                                           LC72 CE 3                                                                                                               D
                                    MA165TA




                                                                    0.4V                                                    0V                                                      0V                                                              R931          1K
                                                                           79   REGIN0                                                                        LC72 DO 2                                                                                                               C
                                                                      0V                                         T 10ms.                                                            2.5V
                                                                                REGIN1                                                                          CHECK 1
                                                                                          STAND-BY




                                                                           80
                                                                                          CR TIMER




                                                                                                                                                                                                    1SS291TA
                                                                                          CHORUS
                                                                                          LOUNGE
                                                                                          S.W.LED




                                                                                          POWER
                          MA165TA




                                                                                                                                                                                                                                                       X901
                                                                                          MUTE2

                                                                                          MUTE3
                                                                                          TIMER




                                                                                          E DET
                                                                                          SHDO
                                                                                          MUTE




                                                                                          SHCS



                                                                                          SHCK
                           D931




                                                                                                                                                                                                                                                      (6MHz)
                                                                                          SHDI
                                                                                          VDD2
                                                        R990
                                                        100K




                                                                                          Vss2
                                                                                          NC




                                                                                          NC




                                                                                          SD




                                                                                                                                                                                                                                                1
                                    D933




                                                                                         81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100                                                                                                                  2
                                                                                                                                                                                                                                                3
                                                                                                                                                                                                    D905
                                                                                                                        4.8V




                                                                                                                                             1.9V
                                                                                                                                             3.3V
                                                                                                                                             5.1V
                                                                                                                                             1.4V
                                                                                      0V
                                                                                      0V
                                                                                      0V
                                                                                      0V
                                                                                      0V
                                                                                      0V




                                                                                                                                  5.1V
                                                                                                                                  5.1V

                                                                                                                                               0V

                                                                                                                                             1.9V




                                                                                                                                                                  0V
                                R993
                                100K




                                                                                                                                                                                 R926
                                                                                                             100K




                                                                                                                                                                                 2.2K                          R954                     R952
                                                                                                                                                                                                               100K                     10M
                                                               R939




                                                                            R986




                                                                                               R995
                                                               1.5K




                                                                            1.5K




                                                                                                220




                                                                                                                                                                       6.3V100
                                                                                                                               1000P
                                                                                                                               C905




                                                                                                                                                                                                                 C912
                                                                                                                                                                        C901




                                                                                                                                                                                                                  0.1
                                                                                                             R994




                                                                                                                                                                                              1 H




                                                                                                                                                                                                                                               R951
                                                                                                                                                                                                                                               330K
                                                                                                                                                                                             10K
                                                                                                                                                                                             47K
                                                                                     (DIGITAL S.WOOFER)
                                                                              REC)




                                                                                                                                                    100
                                                                                                                                                    100
                                                                                                                                                    1K
                                                                                                                                                   10K
                                                                                                                                                    1K
                                                                                        LNJ301MPUJAD




                                                                                                                                                                                                                                      X902
                                                                      SELS5923C




                                                                                                                                                                                                                                    (32.7kHz)
                                                          SELS5223C



                                                                        D954




                                                                                             D951
                                                            D306




                                                                                                                                                                                             R918
                                                                                                                                                                                             R928
                                                             ( )




                                                                      PLAY/




                                                                                                                                                                                             L902
                                                                                                                                                   R988
                                                                                                                                                   R937
                                                                                                                                                   R987
                                                                                                                                                   R935
                                                                                                                                                   R934




                                                                                                                                                                                                                      C911




                                                                                                                                                                                                                                               C910
                                                                                                                                                                                                                      18P




                                                                                                                                                                                                                                               20P
                                                                                (




                                                                                                                                                                                                                      1000P
                                                                                                                                                                                                                      C926




                                                                                                                                                                                 R919
                                                                                                                    1.5K




                                                                                                                                                                                 15K
                                                                                                                    1K

                                                                                                                    47




                                                                                                                                                                                                                                                                            10 H
                                                                                                                                                 R936
                                                                                                             R999




                                                                                                                                  R969




                                                                                                                                                                                                                                                                            L901
                                                                                                             100K




                                                                                                                                  2.7K




                                                                                                                                                  100




                                                                                                                                                                                 R991
                                                                                                                    R960
                                                                                                                    R958

                                                                                                                    R959




                                                                                                                                                                                 47K
                                                                                                                                                                                                                    D902                                     D901
                                                                                                                                                                                                                  1SS291TA                                 1SS291TA
                                                                             5.1V
                                              6.3V100




                                                                                                                                                                                                                                                                            10V1000
                                                                                                                                                                                             C903
                                               C916




                                                                                                                                                                                             0.01




                                                                                                                                                                                                                                                                             C902




                                                                                                                    L      O             F   M          K   I N    E                                                                       Q




                                                                                                                                                                                                                        SA-DV280(EB,EG) OPERATION CIRCUIT DIAGRAM

                      7                                               8                                                    9                                      10                                              11                                                12
SCHEMATIC DIAGRAM-2                                                   : NEGATIVE VOLTAGE LINE                                 : FM SIGNAL LINE
 A OPERATION CIRCUIT                                                  : POSITIVE VOLTAGE LINE                                 : AM SIGNAL LINE             :AUDIO SIGNAL LINE




                                                                                                                                                                                                                                                                      TUNER Lch/
                                                                                                                                                                                                                                                                       TUNER Rc
                                                                                                                                                                                                                                                                           A.GN
                                                                                                                                                                                                                                                                           Lch I
                                                                                                                                                                                                                                                                           Rch
                                                                                                                                                                                                                                                                          +B(10V
                                                                                                                                                                                                                                                                           SUR
                                                                                                                                                                        R941                                                                                               SUR
     5.1V                                                                                                                                                                1K




                                                                                   6.3V100
                           VR901                                                                                                                                                                                                                         To                   S.




                                                                     C917



                                                                                    C918
                                                                     0.01
                       EVQVBXFK124B
                         (VOLUME)                                                                                        Z901                                                                                                                            SOUND                MI
                                                                                                                         B3RAD0000028                      Q902                                                                                          PROCESSOR       -B(-10V
                                                                                                                        (REMOTE SENSOR)
                                               R962                                                                                                        UN411FTA                                                                                      (SH-DV280)        V.GN


                                                          R961
                                               22K



                                                          22K
                                                                                                                                                           MUTING CONT. R974                                                                                               D.GN
                                                                                                                        3                                  3.3V     3.3V 1K                                                                                              CS/ RE
                           COM B A                                             



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