Service Manuals, User Guides, Schematic Diagrams or docs for : Kenwood Cassette Receiver Car Cassette Receiver Car Kenwood KRC-709 & 779R & 889 KRC-709 & 779R & 889

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KRC-709 & 779R & 889


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  M&T CASSETTE RECEIVER

  KRC-709/779R/RY/889
  SERVICE MANUAL
                                                                                                                                      C 2001-2 PRINTED IN KOREA
                                                                                                                                      B51-7749-00 (K) 3395
The CASSETTE MECHANISM OPERATION DESCRIPTION is the same model D40-1122-05.
Please refer to the service manual for model D40-1122-05(B51-7452-00).

KRC-709
                                     KRC-709
                                                                                                          PROG
                                                                                                                                      PWR OFF       MENU
                                                                                                                                                     CLK
   Front glass                                                                                                                                                   Panel assy
                                 47Wx4
   (B10-3237-01)                                                                                                         AUD
                                                                                                                                                                 (A64-2130-02)
                                     DOLBY B NR                                                                                                     ANG

                                     LOUD         B NR   SCAN    B.S/RDM    REP        MTL/M.RDM   AUTO      DISP
  Escutcheon assy                                                                                   AME      NAME.S             DAB


  (B07-3007-03)




KRC-779R/RY                          KRC-779R
                                                                                                          PROG/PTY
                                                                                                                                      PWR OFF       MENU
                                                                                                                                                     CLK

   Front glass                     K3i                                                                                                                           Panel assy
                                 47Wx4
   (B10-3242-01)                                                                                                         AUD
                                                                                                                                                                 (A64-2134-02)
                                     DOLBY B NR                                                                                                     ANG
                                                                                                             EX
                                     LOUD         B NR   SCAN    B.S/RDM    REP        MTL/M.RDM   TI        DISP
   Escutcheon assy                                                                                 VOL ADJ   NAME.S             DAB

   (B07-3007-03)




KRC-889                              KRC-889
                                                                                                          PROG
                                                                                                                                      PWR OFF       MENU
                                                                                                                                                     CLK

    Front glass                                                                                                                                                  Panel assy
                                 47Wx4
    (B10-3239-01)                                                                                                        AUD
                                                                                                                                                                 (A64-2132-02)
                                     DOLBY B NR                                                                                                     ANG
                                                                                                             EX
                                     LOUD         B NR   SCAN    B.S/RDM    REP        MTL/M.RDM   AUTO      DISP
   Escutcheon assy                                                                                  AME      NAME.S             DAB


   (B07-3007-03)



   KRC-779R/RY           DC cord                                  Remote com. assy                  Antenna adaptor
                         (E30-4942-05)                            (A70-0886-15)                     (T90-0523-05)




                                                                           MASK-key



         Screw set           Plastic cabinet assy                  Lever                            Torsion coil spring                         Mounting hardware assy
         (N99-1704-05)       (A02-1497-03)                         (D10-4562-04)x2                  (G01-2924-04)                               (J21-9716-03)




         DC cord                   Remote com. assy                               Escutcheon assy                     Bracket L                  Stay               Screw set
         KRC-709:(E30-4940-05)     (A70-0883-05)                                  (B07-3010-02)                       (J19-5051-03)              (J54-0606-04)      (N99-1652-05)
                                                                SIZE AAA
         KRC-889:(E30-4939-05)                                  BATTERY
                                                                (Not supplied)



                                            RC-500                                                                             Bracket R
                                                                                                                               (J19-5052-03)
      KRC-709,889                                                                                                                                                             40%
                                                                                                                                                                                                                                                                                                                                                  KRC-709,779R/RY,889
2

    F/E                                                                                                             A 8V          IC5       ONLY FL MODEL
                          SW5V
                                                                                        FM:                                                                                                                                                                                                                           E TYPE
                                                                                                     AM:
                              FM+B                                                      470mV(KTYPE)
                                                                                                     230mV                                                                                                                                                                                                     TAPE   2250mV
                                                                                        251mV(ETYPE)
                                                                                                                                                                                                                                                                                                                FM    1715mV
                              AM+B                                                      IC2                                                                                                                                                             B.U.5V                                +B
                                                                                                                                                                                                                                                                                                                AM    1069mV
                                                                                                                                                                                                                                                                                                                CH    4500mV
                                                                                                                                             SYSTEM
                                                                                                                                               ,                                                                                                 Q1-6             ONLY FL MODEL
                                                                                                                                              ES
                                                                                         FM                                                                                                                                                          MUTE                                 4.5V
              AUDIO                                                                      AM                                                                                                                                                                                                                    4.5V PRE OUT
                              BUFFER SW5V           RDS   IC11                                                                                                                                                                                      DRIVER                               PRE AMP
                                                  DECODER                                                                                                                                                                                                                                     IC7-9
                                                                                                  E-VOL
                                                                  440mV                            N.C.                                                                                                                                                                                  -B
                                                                                         TAPE     MPX                                                                                                                                                                                                          1.8V PRE OUT
                                                                  1200mV
                                                                                         CHANGER




                                                                                                                                            SDA
                                                                                                                                            SCK
                                                                                                                                                                                                                                                                                                                E TYPE   K TYPE
                                                                                         S METER
                                               Q73                                                                                                                                        IC10                                                                                                          TAPE    1800mV   1800mV
                                                                                                                                                                                                                                                                           BACK UP




                                                                                                SDA
                                                                                                SCK
                                                                                                                                                                                                                                                                                                         FM     1372mV   1800mV
                                                NOISE                                    QUAL                   S MUTE
                                                                                                                                                                                           MUTE LOGIC         B.U.5V                                              IC4                                    AM      855mV    600mV
                                               BUFFER
                                                                                                                                                                                                                                                                                                         CH     3600mV   3600mV
                                                                                                                       2                                                                                                                                                   POWER IC
                                                           3
                                                                                                                                                                                                                                                                                                               SP OUT
                                                                  IC1




                                                                                                                                                                                                                                                                                AUX IN
                                                                                                                                                                                                                                                                   MUTE
                                                                           AM+B
                                                                           FM+B




                                                                                                SDA
                                                                                                SCK
                                                                  RCLK                                                                                           PRE MUTE
                                                                                                                                                                                                                                 SW5V
                                                                                                                                                                                                                                                THEMO
                                                                  QUAL                                                                                               MUTE                                                                      PROTECT
                                                                  RDATA
                                                                  NOISE
                                                                                                                                                                      P MUTE
           S-METER                                                S METER
                AFC                                               AFC                                                                                                    BEEP
            IFC OUT                     3                         IFC OUT                                                                                                                                                        Q39
           PLL DATA                                               PLL DATA                                                                                    EXT AMP CONT                                                                EXT AMP CONT                                                         EXT.AMP CONT
            PLL CLK                                               PLL CLK
                                                                                                                                                                                                                                  Q32
                                                                                                                                                                     DIMMER                                                               DIMMER                                                               ILL




                                                                                                                                                                                                                                                                                                                                  BLOCK DIAGRAM
    CASSETTE MECH

          MS OUT                                                                                                                                                       PHONE                                                              TEL MUTE                                                             TEL MUTE
                                                                  MS OUT                                       SYSTEM U-COM
       BOLBY B/C                                                  DOLBY B/C
    DOLBY ON/OFF
                                                                                                                                                                                                                                  Q25
                                                                  DOLBY ON/OFF                                                                                      ACC DET                                                               ACC DET                                                              ACC
            MUTE                                                  MUTE
      MTL ON/OFF                                                  MTL ON/OFF                                                                                                                                                      Q26
              F/R                      13                         F/R                                                                                            ANT CONT                                                                 ANT CON                                                              ANT CON
        MS MODE                                                   MS MODE
           R REEL                                                 R REEL
                                                                                                                                                                                                             Q28
           F REEL                                                 F REEL                                                                                                P CON                                      P CON                                                                                       P CON
          MODE 1                                                  MODE 1
                                                                                                                                                                                                                                       Q45
          MODE 2
                                                                                                                                                                                                   Q24                     PAN5V             PAN5V               SW5V B.U.5V
                                                                  MODE 2                                                                                             B.U DET                             B.U DET
          MODE 3                                                  MODE 3
          PACK IN                                                 PACK IN                                                                                              PAN5V                                                                          Q23                         Q21,22
             SUB+                                                                                                                                                       SW5V                                                                                SW5V                               B.U.5V
             SUB-                                                 CH CLK
                                                                  REQ H
           MOT+B
                                                     8            REQ C                                                                                                                                                                                                                                        BACK UP




                                                                                                                                                   CASS/SRM
                                                                                                                                                   SUB MOT1
                                                                                                                                                   SUB MOT2
                                                                                                                                                   SUB MOT3
                       SW5V                                       DATA C
                                                                                                                      SRM SW1
                                                                                                                      SRM SW2
                                                                                                                      SRM SW3
                                                                                                                      SRM DET                                                                                            Q20                                              Q36
                       A 8V                                       DATA H                                                                                                                                                                                                         SW14V




                                                                                                                                                                    MOTOR
                                                                                                                                                                                                                   A8V             A 8V
                                                                                                      RESET




                                                                                                                                                                    ILL ON
                                                                  CH CON
                                                                  CH RST
    CD-CHANGER                                                    CH MUTE                                                                                                    P ON
    MD-CHANGER                                                                                                                                                                                                                 ONLY FL MODEL
                                                                                                                                                                                                                    +B
             CH CLK                                                                                                                                                                                                                DC/DC
                                                                                                                                                                                                                    -B
              REQ H
              REQ C                                                                                                                                                                                                                             IC6
             DATA C                                                                                                                                                                                                             FOR 4.5V PRE                 Q33,34
             DATA H                                                                                                    4                           4                                                                                                                            ILL AVR
             CH CON                                                                                                                                                                                                            A1 ONLY FL MODEL
             CH RST                                                                                                                SUB+
            CH MUTE                                                                                                                SUB- IC13
                                                                                                                                                                                                                                   DC/DC
                                                                                                                           SRM
                                                                          SUB+                                                                    SUB MOT
                                                                          SUB-
                                                                                                                           MECH         2                                                          SUB MOT    Q37,38                      FOR VFD
          BACK UP                                                                                                                                  DRIVER
                                                                                                                                                              Q42                                    +B
                                                                                  2                                          MOT+B                                  MAIN MOT
                                                                                                                                                                       +B
                                                                                      IC15
                                                                        B.U.5V               RESET




                                 X13-996/999                                           X13-995/998                                                        X13-994/997
                         SYSTEM u-COM                      LCD TYPE                                                         V-ILL TYPE                                 PANEL5V         FL(GRADATED) TYPE
                                                                                                PANEL5V
                                                                                                                                                        ROM
                                                                                  REMO                                                                                                     SPEANA
                                                                                                                                                        REMO                                 BPF
                              REMO PANEL5V                                         KEY                PANEL                                              KEY                   PANEL
                                                                                  MATRIX              U-COM                                             MATRIX                             G/R SW
                                                                                                                                                                               U-COM
                          KEY            LCD                                                                           G/R SW
                         MATRIX         DRIVER           G/R SW
                                             IC1                                                                IC1                                                                 IC1
                      RESET                                                                       IC2
                                                                           RESET                                                                   RESET
                       SW                                                                              LCD                                          SW
                                                                            SW
                                                                                                      DRIVER

                                                                                                                                                                                                                                                                                         KRC-709,779R/RY,889
                                                                                                                                                                                            FL+B




                                                                                                                                                                     VFD(GRADATED)                 FAC
                                            LCD                                                               LCD
                                                              KRC-709,779R/RY,889
                                 COMPONENT DESCRIPTION
(X13-9960-10)
(X13-9992-73)
 Component        Purpose 



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