Service Manuals, User Guides, Schematic Diagrams or docs for : Kenwood Cassette Receiver Car Cassette Receiver Car Kenwood KRC-V879R KRC-V879R

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KRC-V879R


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  M&T CASSETTE RECEIVER

  KRC-V879R /RY
  SERVICE MANUAL
                                                                                                     C 2001-2 PRINTED IN KOREA
                                                                                                     B51-7748-00 (K) 1940
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).




                    Escutcheon assy                       Front glass                Panel assy
                    (B07-3007-03)                         (B10-3241-01)              (A64-2135-02)



                   KRC-V879R
                                                                                            PROG                   PWR OFF    MENU
                                                                                            /PTY                               CLK


                    K3i
                                                                                                       AUD
                  47Wx4
                     DOLBY B NR                                                                                               ANG
                                                                                            EX
                     LOUD         B NR   SCAN   B.S/RDM   REP         MTL/M.RDM   TI        DISP
                                                                                  VOL ADJ   NAME.S           DAB




                DC cord                                    Remote com. assy                          Remote com. assy
                (E30-4942-05)                              (A70-2015-15)                             (A70-0886-15)




                                                                CA-R66                                   MASK-key




                Plastic cabinet assy                        Lever                                    Mounting hardware assy
                (A02-1497-03)                               (D10-4562-04)x2                          (J21-9716-03)




                 Torsion coil spring                        Screw set                                Antenna adaptor
                 (G01-2924-04)                              (N99-1704-05)                            (T90-0523-05)



                                                                                                                                     40%
                                                                                                                                                                                                                                                                                                                                                  KRC-V879R/RY
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
                                                                                                                                                                                            FL+B




                                                                                                                                                                     VFD(GRADATED)                 FAC                                                                                             KRC-V879R/RY
                                            LCD                                                               LCD
                                                                    KRC-V879R/RY
                                 COMPONENT DESCRIPTION
(X13-9950-11)
(X13-9982-72)
Component               Purpose 



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