Service Manuals, User Guides, Schematic Diagrams or docs for : panasonic Audio SA-AK44 Panasonic SA-AK44 sch12

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sch12


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                                                                                                                                                                                                                                                          AK44E
  SCHEMATIC DIAGRAM -12
                                                                                            : +B SIGNAL LINE                                            : -B SIGNAL LINE




                                AC TRANSFORMER CIRCUIT
                                            D570 R570 R571                    R572                      D571
                                            1T3T 10    10                      15                       1T3T
                                            (5.92V) <5.96V>                                                                                              D575      D572
                                            5.96V ((5.94V))[5.97V]                                                                                       1T3T      1T3T
                                                                          (9.19V) <9.06V>
                                                  Q570                    8.86V ((8.22V))    C571                     R574
                                                                          [9.27V]
                                                                                             0.01                     2.2K
                                                   (6.58V) <6.58V>                                                                                       C572
                                                   6.59V ((6.58V))                                                                                       0.01
                                                   [6.6V]

                                                                                               R573
                                                                                                150 D580                            C574                 D577      D573
                                                                     C570                                                          16V1000P              1T3T      1T3T
                                                                     25V47                    MTZJ6R8BTA



                                                                                                                                      D574
                                                                                                   Q570                            RVD1SS133TA
             CN501                                                                 2SD2137PQTA
                     1
                                                                                            REGULATOR
                                                                                            +6V SYSTEM
                     2                                                                                                             3                4
                     3                                                                       S1
                                                                                                                 P1
                     4                                                                       S2                                    1                2
                     5                                                                       SC
TO                                                                                                             PT1
                                                                                             S2'
POWER                6
                                                                                                                                      RL502
                                                                                             S1'
CIRCUIT              7                                                                                                             RSY0040M-0
                                           D576 KBP152G4R5                     R583
(H500/W500)          8
                                                                               4000
                                                                                             S3
ON SCHEMATIC         9
                                                                                                                                           Q572
                                                                                             S3'
DIAGRAM-11           10
                     11
                                            1   C580 2    3      4
                                                                                             S4                           KTC3199GRTA
                                                0.01                                                           PT1'
                                                                                                                       POWER CONTROL SWITCH
                     12                                                                      S5
                     13                                                                      S5'
                           C579
                          25V2200P

                                                                                                 T501
             CN502                                                                            RTP2N3B013
                                                                                                                                                     (0.08V) <0.08V>
                                                                                                                                                     0.08V ((0.08V))
 TO                  6
                          ECONO
                                                                                                                                                     [0.08V]

 PANEL               5
                          SYS6V                                                                             R578
                                                                                                                             (0.83V) <0.83V>
                                                                                                                             0.83V ((0.83V))
                                                                                                                                                        Q572
 CIRCUIT             4                                                                                      330              [0.83V]
                                                                                                                                                     (0.03V) <0.03V>                                                    F1 125V 4.0A
                                                                                                                                                     0.03V ((0.03V))
                          FL2
 (H601) ON           3                                                                                                                               [0.03V]
                                                                                                                                                                                                                      FC2     FC1
                          FL1
 SCHEMATIC           2                                                               (2.98V) <2.96V>
                          SYNC                                                       2.97V ((2.95V))[2.99V]                                                                                             W1A
 DIAGRAM-8           1                                                                                                                                                             W1B                                                 L500   JK500
                                                                                                               (-0.27V) <-0.25V>
                                                       Q571                      Q571                          -0.26V ((-0.24V))
                                                                                                               [-0.27V]
                                                                                                                                        R576
                                                                                                                                        10K
                                                                                                                                                         C575
                                                                                                                                                         35V4.7                    W2B                  W2A
                                                                                                                                                                                                                     Z501
                                                                                                                                                                                                                     ERZV10V511CS
                                                                                                                                                                                                                                               AC 230V------------E
                                                                                                                                                                                                                                               AC 230V-240V----EB/EG
                                            KRC102MTA                                              (0.03V) <0.03V>
                                                                                                   0.03V ((0.03V))
                                                                                                                                                                                                                                               50Hz
                                                   SWITCH                                          [0.03V]                            C577          R577
                                                SYNCHONISING                                                                          0.01          10K                                  1          1
                                                                                                                                                                                         2          2
                                                                                                                                                                                         3          3
                                                                                                                                                                                             W500                          T502
                                                                                                                                                                                                                        RTP1H3E002


                                                                                                                                                                                                                SUB-TRANSFORMER
                                                                                                                                                                                                                CIRCUIT
                                                                                             CD LOADING CIRCUIT

                                                                                                                                               IC1
                                                                                                                                             TA7291P
                                                                                                                                       VCC




                                                                                                                                             MOTOR DRIVE
                                                                                                                                                                   Vref
                                                                                                                 NC




                                                                                                                                                                          NC
                                                                                                                             VS




                                                                                                       10        9           8         7        6         5        4      3    2         1




                                                                                                                      C2                         C1
                                                                                                                      0.01                     50V5.6P
                                                                                                   M
                                                                                               RM1
                                                                                                                                                    R1 1K

                                                                                                                                                  D2
                                                                                                                                               MTZJ4R7BTA
                          CD DETACT                                                                                                                                                                           CN1
                                                                                                                                   Q1                                                L
                          CIRCUIT                                                                                                                                                            PLUNGER
                                                                                                                                                                                                         1
                                                                                                                                                                                     BOTTOMSW
                                                                                                                                                                                                         2
                                                                                                                                                                                             POSITION
                                  3                                          3                                                                                                                           3
                                                                                                                                                                                               PSLED
                                  2                                          2                                                                                                                           4
                                                                                                                                                                                              D_GND
                                  1                                          1                                                                                                                           5
                                                                                                                                                                                                 SW2
                                                                                                                                                                                                                    TO
                 SW4                  W2                              W2                                                                                                                                 6          MAIN CIRCUIT
                                                                                                                                                        SW2                                    P_GND                (CN309) ON
                                                                                                                                                        SW1                                              7
                                                                                                                                                                                                 SW1                SCHEMATIC
                                                                                                                                                                                                         8          DIAGRAM-5
                                                                                                                                                                                                OPEN
                                                                                                                                                                                                         9
                                                          4                  4                                                                          SW3                                    CLAMP
                                                                                                                                                                                                        10
                                                          3                  3                                                                                                                  CCW
                       D1                                                                                                                                                                               11
                     GP1S94                               2                  2                                                                                                      DRIVEPOWER
                                                                                                                                                                                                        12
                                                          1                  1                                                                                                                  HALF
                                                                                                                                 Q1                                                                     13
                                                                     W1                                       RVTDTC143EST                                                                        CW
                                                                                                                                                                                                        14
                                                                                                                     POWER SUPPLY
                                                                                                                       CONTROL


                               SW5



                          SPINDLE POSITION
                          CIRCUIT



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