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KS-LX200R


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                                                                                  KS-LX200R
                                                                                    KS-LX200R




SERVICE MANUAL
CASSETTE RECEIVER

          KS-LX200R
                                                                              Area Suffix
                                                                        E    Continental Europe
                                                                        EX      Central Europe




               E
              S L   7   8   9               10   11   12   O F
                                                            F




                                KS-LX200R




 Contents

        Safety precaution                                        1-2
        Disassembly method                                       1-3
        Adjustment method                                        1-13
        Description of major ICs                                 1-17




      This service manual is printed on 100% recycled paper.
                                                                                            No.49573
                                                                                                   1-1
     COPYRIGHT 2000 VICTOR COMPANY OF JAPAN, LTD.
                                                                                            Oct. 2000
KS-LX200R



      Safety precaution

       !      Burrs formed during molding may be left over on some parts of the chassis. Therefore,
              pay attention to such burrs in the case of preforming repair of this system.




1-2
                                                                                                  KS-LX200R

Disassembly method                                                                 Bottom cover


  Removing the top chassis
                                    (See Fig.1 to 5)
1. Remove the two screws A attaching the bottom
   cover to the top chassis on the bottom of the body.                                            A
2. Remove the two screws B attaching the top chassis           A
   on both sides of the body.

3. Remove the screw C and the three screws D
   attaching the heat sink on the left side of the body.

4. Remove the two screws E and the screw F on the                          Fig.1
   back of the body.

5. Remove the two screws G on the upper side of the
   body.                                                                           Top chassis

6. Move the top chassis upward and disconnect the
   cassette mechanism connector from the main board
   connector by pulling it. Remove the top chassis from
   the body.

                                                                                           B
                                                                           Fig.2




                                                                   C           Top chassis




                                                           Heat sink
                                                                           D                B
                                                                           Fig.3

                                             Top chassis



                                                                       E                   F

        G
                                             G

                         Fig.5                                             Fig.4




                                                                                                         1-3
KS-LX200R

      Removing the main board assembly                            Main board assembly

                              (See Fig.6 to 8)                                                                      CN504
      Prior to performing the following procedure, remove
      the top chassis.
                                                               CN503                                              Bracket (L)
 1. Remove the screw S attaching the bracket (L).
                                                                                                                    CN701
 2. Disconnect the flexible harness from connector
    CN701, the card wire from CN702 on the main board
                                                                  H                                                        H
    and the harness from CN503 and CN504                                                                            S
    respectively.
                                                                                                                    H
 3. Remove the three screws H attaching the main                                                                 Joint a
    board assembly to the bottom cover on the upper           Joint a
    side of the body.                                                       CN702
                                                                                            Front panel assembly
 4. Remove the screw I attaching the rear panel and the                                     Fig.6
    bottom cover on the back of the body. Move the
    main board in the direction of the arrow and release
    the two joints a. (At this point, the main board can be
    removed with the rear panel and the rear heat sink.)

 5. Remove the screw J and the two screws K attaching
    the rear heat sink on the back of the body.

 6. Remove the two screws L and the screw M attaching
    the rear panel. Now, the main board assembly will be                                                                    e
    removed.

 ATTENTION: When reassembling, correctly engage the
            switch S561 and S562 on the main board
            with the part e of the operation assembly
            (Refer to Fig.7, 18 and 19).

                                                               Main board                    S652            S651

                                                                                            Fig.7




                                                                            M               Rear heat sink
                                                                                        L                    J

                                                              L



                                                              Rear panel
                                                                                K             I
                                                                                            Fig.8




1-4
                                                                                                            KS-LX200R

  Removing the front panel assembly                          Main board assembly
                          (See Fig.9 to 11)
  Prior to performing the following procedure, remove
  the top chassis assembly.

1. Disconnect the flexible harness from connector                                                          CN701
   CN701 on the main board assembly.

2. Remove the four screws N attaching the front panel
   assembly on both sides of the body. Remove the
   front panel toward the front.




                                                                                       Front panel assembly
                                                                                   Fig.9




                         Front panel assembly                     Front panel assembly




                                                N            N

                                                                                            CN701
                        Fig.11                                                     Fig.10




                                                                                                Joints b
  Removing the Front Board (See Fig.12)
  Prior to performing the following procedure, remove
  the top chassis assembly and the front panel           O                                                         O
  assembly.

1. Remove the four screws O attaching the front board
   on the back of the front panel assembly and release                                          Joints b
   the eight joints b.
                                                                                   Fig.12




                                                                                                                       1-5
KS-LX200R

      Removing the lifter unit (See Fig.13)
      Prior to performing the following procedure, remove
      the top chassis assembly and the front panel
      assembly.

 1. Disconnect the harness from connector CN503 and          CN503
                                                                                                              CN504
    CN504 on the main board.

 2. Remove the four screws P and detach the lifter unit      P
    from the bottom cover.                                                                                       P

      Removing the feed motor (L) (See Fig.14)
      Prior to performing the following procedure, remove
      the lifter unit.                                                                           Lifter unit assembly
                                                                                    Fig.13
 1. Remove the washer attaching the clutch assembly
    and detach the clutch assembly from the shaft of the
    lifter unit.
                                                                                                Lifter unit assembly
 2. Remove the two screws Q attaching the feed motor
    (L).
                                                            Clutch assembly




      Removing the feed motor (R) (See Fig.15)
      Prior to performing the following procedure, remove
      the lifter unit.

 1. Remove the washer attaching the clutch assembly                                          Feed motor (L) assembly
    and detach the clutch assembly from the shaft of the
                                                                   Washer
    lifter unit.                                                                Q
 2. Remove the two screws R attaching the feed motor                                Fig.14
    (R).

                                                                                                    Lifter unit assembly
                                                            Clutch assembly




                                                                                              Feed motor (R) assembly

                                                                                    R
                                                                       Washer
                                                                                    Fig.15




1-6
                                                                                                          KS-LX200R

  Removing the operation assembly
                        (See Fig.16 to 19)
  Prior to performing the following procedure, remove
  the top chassis assembly, the front panel assembly
  and the lifer unit.                                 Bracket (R)
                                                                                                          Bracket (L)
1. Remove the three screws S attaching the right and
   left brackets which fix gears on both sides of the
   operation assembly.                                    S
                                                                                                            S
2. Remove the springs 5 and 6 from the operation
   assembly.

3. Disconnect the card wire from connector CN702 on
   the main board and remove the operation assembly.      Spring 5                       CN702     Spring 6
                                                                    Operation assembly
ATTENTION: When reassembling, correctly engage the
           switch S561 and S562 on the main board                                 Fig.16
           and the right gear with the part c of the
           operation assembly.




                                                                                                          S652




                                                                                    S651
                                                                                           Operation assembly c

                                                                                  Fig.17




                Bracket (R)

                                                                                     Operation assembly
                                  Operation assembly c

                                                               c




              S652                S651
                         Fig.19                                                   Fig.18

                                                                                                                        1-7
KS-LX200R

      Removing the operation switch board
                           (See Fig.20 and 21)
      Prior to performing the following procedure, remove
      the operation assembly.
                                                                                TT
 1. Remove the six screws T attaching the button panel
    on the operation assembly.

 2. Pull out the operation switch board from inside of the
    button panel.                                                                        Button panel
                                                                                Fig.20




                                                                                 Operation switch board




                                                             Button panel
                                                                                Fig.21




      Removing the cassette               mechanism                         U                 U
      assembly (See Fig.22)
      Prior to performing the following procedure, remove
      the top chassis.

 1. Remove the four screws U and the cassette
    mechanism assembly from the top chassis.


                                                             U                                            U

                                                                                     CD mechanism assembly
                                                                                Fig.22




1-8
                                                                                                          KS-LX200R

                                                                                 Head amplifier board
Disassembly method                                       Connector board


 Removing the head amplifier board
                              (See Fig.1)
1. Disconnect the wire from connector CP401 on the
   head amplifier board.

2. Remove the screw A.                                                A
                                                                                   Joints a
3. Remove the head amplifier board in the direction of                               Fig.1
   the arrow to unhook two joints a.

4. Disconnect connector CP402 on the head amplifier                                B
   board from the connector board.



 Removing the mechanism bracket
                            (See Fig.2)                                                                       B
  Prior to performing the following procedure, remove
  the head amplifier board.

1. Remove the four screws B on the underside of the
   cassette mechanism assembly.




                                                                       B                      Mechanism bracket
                                                                                     Fig.2



  Prior to performing the following procedure, remove
  the head amplifier board and the mechanism                                   Soldering b
  bracket.                                                            C                        Joint d
                                                                                       C
 Removing the connector board
                             (See Fig.3)
1. Unsolder soldering b and c on the connector board.

2. Remove the three screws C.

3. Remove the connector board in the direction of the                                           Connector board
   arrow to unhook joint d.                                                C
                                                                               Soldering c
                                                                                     Fig.3




                                                                                                                  1-9
KS-LX200R

  Removing the load arm assembly
                             (See Fig.4)
  Prior to performing the following procedure, remove
  the connector board.

1. Remove the slit washer e retaining the load arm
   assembly.

2. Remove the spring g in the load arm assembly
   marked joint f.
                                                                    Load arm assembly
                                                                                              D
3. Draw out the load arm assembly from the shaft and                                                   Load arm assembly
   rotate in the direction of the arrow to remove it from   Holder arm            Joint h
   the cach.                                                                                              Slit washer e


  ATTENTION: The spring g comes off as the load                                                                 Joint f
             arm assembly is drawn out from the                                                                 Load arm
             shaft.                                                                                             assembly
                                                             Cach



                                                                                                                Spring g
                                                                                                        Worm gear
  Removing the sub chassis (See Fig.4)                                     Cassette holder
                                                            Main chassis                     D    Sub chassis
  Prior to performing the following procedure, remove
  the connector board and the load arm assembly.                                        Fig.4

1. Remove the two screws D           attaching the sub
   chassis.

2. Draw out the sub chassis from the holder arm shaft
   in the direction of the arrow (marked joint h).
   Remove the sub chassis from the main chassis
   upwards.



                                                                Holder arm    E              Joint h


  Removing the cassette holder / holder
  arm (See Fig.5)
  Prior to performing the following procedure, remove
  the connector board and the load arm assembly.

1. Remove the screw E attaching the cassette holder /
   holder arm.
                                                             Joints i
2. Draw out the holder arm shaft from the sub chassis
   in the direction of the arrow (marked joint h).

3. Disengage two joints i and remove the cassette              Main chassis    Cassette holder           Sub chassis
   holder / holder arm.
                                                                                        Fig.5




1-10
                                                                                                                   KS-LX200R

  Removing the sub motor
                        (See Fig.4 and 6)                                                          Slit washer j
  Prior to performing the following procedure, remove
  the connector board and the load arm assembly.

1. Remove the slit washer j and the worm gear.

2. Remove the two screws F.                                                                            Worm gear
                                                             Sub motor




                                                                       F




                                                                                       Fig.6



  Removing the play head / pinch roller                              Pinch roller assembly      Pinch roller assembly
  assembly (twin set) (See Fig.7)                           Slit washer l           Play head               Slit washer l
  Prior to performing the following procedure, remove
  the connector board, the load arm assembly and the
  sub chassis.

1. Remove the spring K retaining the play head
   assembly and pull out the play head assembly.

2. Remove the two screws G.                                                             G
                                                                      Spring k

3. Remove the two slit washers l attaching the pinch
   roller assembly (twin set). Pull out each pinch roller                        
   assembly.


                                                                                    Spring k

                                                                                       Fig.7




                                                                                                                            1-11
KS-LX200R
                                                                                         Reel disc assembly
  Removing the reel disc assembly (twin                             Motor
                                                                               Reel driver
  set) (See Fig.8 to 10)
   Prior to performing the following procedure, remove
   the connector board, the load arm assembly, the sub
   chassis and the cassette holder / holder arm.

1. Remove the two slit washers m while pushing down
   the reel driver on the two reel disc assemblies.                                                                  Slit
                                                                                                                     washers n
                                                            Soldering q
2. Pull out the two screws I from the shaft with the reel
                                                            Slit
   driver and the spring respectively.                      washers m




  Removing the flywheel assembly (F) and                                Reel driver
                                                                                          Reel disc assembly
  (R) (See Fig.8 and 11)                                                                   Fig.8
   Prior to performing the following procedure, remove
   the connector board, the load arm assembly, the sub                      Reel driver        Slit washer m
   chassis and the cassette holder / holder arm.

1. Remove the belt from the underside of the
   mechanism assembly.

2. Remove the two slit washers on the upper side of the
                                                                                           Fig.9
   mechanism assembly.

3. Pull out the flywheel assembly (F) and (R) from                                                 Reel driver
   underside of the mechanism assembly.



                                                                      Spring

  Removing the reel disc board                                                                           Reel disc
                              (See Fig.11)
1. From the underside of the mechanism assembly,
   unsolder soldering o on the reel disc board.

2. Unbend the joint hook p retaining the reel disc board.
                                                                                          Fig.10
3. Remove the screw H.
                                                                            Flywheel (F)           H I       Motor
                                                             Belt


  Removing the motor (See Fig.8and 11)
                                                                                                                      I
1. Unsolder soldering q on the motor.                                                                            Soldering o
                                                                                                            Reel disc board
2. Remove the belt from the underside of the
   mechanism assembly.                                                                                      Joint hook p


3. Remove the two screws I from the underside of the
   mechanism assembly.


                                                                    Flywheel (R)                             Tab
                                                                                          Fig.11              Reel disc board

1-12
                                                                                                          KS-LX200R

Adjustment method
  Test Instruments reqired for adjustment                  Tuner section
1.Digital osclloscope(100MHz)                             BAND STEP
2.Frequency Counter meter                                  FM : 100kHz (Seek), 50kHz (Manual)
3.Electric voltmeter                                       AM : 9kHz step
4.Wow & flutter meter
5.Test Tapes
                                                           Preset Memory Initialization
VT724                     for DOLBY level measurement
                                                                                Preset Memory
VT739            For playback frequency measurement        Band
                                                                      M1      M2    M3     M4     M5       M6
VT712      For wow flutter & tape speed measurement
                                                          FM(MHz)     87.5   89.9   97.9 105.9 108.0       87.5
VT703                    For head azimuth measurement
                                                          AM(kHz)     153     216   603   999    1404     1620
6.Torque gauge                  Cassette type for CTG-N
                                (mechanism adjustment)
                                                          DUMMY LOAD
 Measuring conditions(Amplifier section)                  Exclusive dummy load should be used for AM
Power supply voltage                DC14.4V(10.5~16V)     and FM dummy load,there is a loss of 6dB
Load impedance              4   (2Speakers connection)    between SSG output and antenna input. The
Line out                                          20k     loss of 6dB need not be considered since
                                                          direct reading of figures are applied in this
 Standard volume position                                 working standard.
Balance and Bass,Treble volume .Fader
:Center(Indication"0")                                     Arrangement of Adjusting
Loudness,Dolby NR,Sound,Cruise:Off                        Cassette Mechanism Section
Volume position is about 2V at speaker output with                                    Tape speed adjust
                                                                  Capstan motor
following conditions.Playback the test tape VT721.
                                                          Cassette mechanism
                                                          (Surface)
AM mode            999kHz/62dB,INT/400Hz,30%
                  modulation signal on receiving.
FM mono mode       97.9MHz/66dB,INT/400Hz,22.5kHz
                  deviation pilot off mono.
FM stereo mode 1kHz,67.5kHz dev. pilot7.5kHz dev.
Output level       0dB(1 V,50      /open terminal).




                                                                  Azimuth screw      Playback head
                                                                  (Forward side)


                                                              Azimuth screw
                                                              (Reverse side)




                                                                                                                  1-13
KS-LX200R
   Arrangment of adjusting
   Head amplifier board section (Reverse side)
                                                                             VR402:Rch                                                                                                          VR401:Rch
                                                                             (Dolby NR level adj)                                                                                               (Dolby NR Frequency response adj)

                                                                                B402                                                                                                                         C409




                                                                                                                                                                                  B415
                                                                                                                                                                                            R411                                      VR401
                                                                                                                             VR402    C412                 C411       C410




                                                                                                               C417




                                                                                                                                                                                                   R412
                                                                             R423
                                                                                                                                                                                                                        B416




                                                                                                D403
                                                                                                                                                           R413




                                                                                                                                                                                                      R410
                                    E                                                                                                                                                                                                                                                    C404                          TPP
                                                                                                                      C418                                                     C413
                                    Q401                                                                                                                                                    1



                           D401
                                                                                                R424




                                                                                                                                                                                                                                                                                         R402
                                                                                                                                                                                                                                                                                                C401
                                                                                                                                                                                                                 C405                                                                                      CP402
                                                       R421                                                                                                                                                                                                                                                        1
                                                       R422                                                                                                                                                                           R408                                                             2




                                                                                                                                                                                                                                                                   R404
                                                                                                                                                                                                                                                                           R405
                                                                                                                                                                                                                                                            B406
                                                                                                                                                                                                                           31




                                                                                                                                                                                                                                                                                  C403
                                                                                                          IC402                              1




                                                       Q402
                                                                                                                                                                                11
                                                                      B409                       R425
                                               B401                                    C419                           C414




                                                                                                                                                                                                                                                     B414
                                                                                                                                                                                                                          C407




                                                              Q403




                                                                                                                                                                        B411




                                                                                                                                                                                                                                                                                                                   R401
                                                                                                                                                                                                      21
                            CP401




                                                                                                                                                    C415




                                                                                                                                                                                                                                              R409
                                                                                                                                                                                 IC401
                                                                                                                                                                                                                               C408




                                                                                                                                                                                                                                                     C406
                                                                                                                                                                                                          R417
                                                                                                                                                                                B412
                                        R420


                                                               D402




                                                                                                        B403
                              1                                                                                                                                                                                                  R414




                                                                                                                               R416
                                                                                                                        B410
                                                                                                                                                                                                                                                R407




                                                                                                                B404




                                                                                                                                      R415
                                                                                                                                             C416


                                                                                                                                                             R418
                                                                                                                                                                                                                                                                          R406




                                                                                                                                                      R419
                                                B408


                                                                                                                                                                                                                                                                                          R403
                                                                                                                                                                    CP403                                                                                                                       C402
                       1                                                            FSMW1101A




                                                                                                                                                                                                                                                                           B407
                                                                                                                                                                                       17                                              1             B405
                                                                                                                                                                                                                 B413




   Information for using a Car Stereo service jig (for adjustment and checking)
   We are advancing efforts to make our extension cords comman for all Car Stereo products.
   Please use this type of extension cord as follows.
   As a U -shape type top cover is employed,this type of extension cord needed to check operation of
   the mechanism assembly after disassembly.
   Extension cords

                                                                                                                                                                                         EXT-KSRT002-18P(18 pin extension cord)


                                                                                                                                                                    For connection between mechanism assembly
                                                                                                                                                                    and main board assembly.
                                                                                                                                                                    Check for mechanism-driving section such as moter ,etc.

    Disassembly method. (Refer to mthod to remove main parts)
  1.Remove the bottom cover.
  2.Remove the front panel assembly.
  3.Remove the top cover. (Remove the screws at each side of heat sink and rear panel)
  4.Install the front panel (whose assembly was removed in step 2) to the main unit.
  5.Confirm that current is being is carried by connecting an extension cord jig.

  Connection diagram




                                                                                                                                                                                                                                                                                                                                     EXTLX002-SWPWB
                                                                                                                                      EXTLX001-16PF
                                                                                                                                                                                                EXTLX002-4P
                                                                                                                                                                                                  EXTLX002-16PC
                                                                                                                                                                                                     EXTLX001-2P

           EXT-KSRT002-18P




                                                                                                                                                                                                                                                                     EXTLX001-6PC


                                                                                                                                                                                                                                                                                                                             EXTLX001-2P

                                                                                                                                                                                                                                           EXTLX001-6PF




1-14
                                                                                                  KS-LX200R

Extension cord list


          EXTLX002-JIG : Kit including the following 8 extension parts.

     No.     Parts number           Quantity                    Description
      1    EXTLX001-2P                2         2Pin, 30cm extension cord
      2    EXTLX001-6PF               1         6Pin, 30cm flat wire
      3    EXTLX001-6PC               1         6Pin x 2, interlocking connector
      4    EXTLX002-16PF              1         16Pin flat wire
      5    EXTLX002-16PC              1         16Pin, interlocking connector
      6    EXTLX002-SWPWB             1         3 switch PWB
      7    EXTLX002-4P                1         4Pin, 30cm extension cord


              Besides the above kit, we offer the conventional extension cord for CASSETTE
              mechanism which are not essential to operation check or service.
              The mechanism should be directly connected to the board using the extension wire.
              EXT-KSRT002-18P




                                                                               EXTLX002-SWPWB

EXTGS004-26P                          EXTLX002-4P
                                        EXTLX002-16PC
                                           EXTLX001-2P




EXTLX001-16PF

                                                      EXTLX001-6PC


                                                                  EXTLX001-2P

                                               EXTLX001-6PF




                                                                                                        1-15
KS-LX200R

       Item        Conditions          Adjustment and Confirmation methods S.Values                         Adjust
 1. Head         Test tape:              Head height adjustment
    azimuth      SCC-1659                Adjust the azimuth directly. When you
    adjustment   VT703(10kHz)            adjust the height using a mirror tape,
                                         remove the cassette housing from the
                                         mechanism chassis. After installing the
                                         cassette housing, perform the azimuth
                                         adjustment.                                                            A line

                                      1. Load the SCC-1659 mirror tape. Adjust with
                                         height adjustment screw A and azimuth Head shield
                                         adjustment screw B so that line A of the
                                         mirror tape runs in the center between Lch The head is at low position
                                         and Rch in the reverse play mode.          during.

                                      2. After switching from REV to FWD then to
                                         REV, check that the head position set in                               B line
                                         procedure 1 is not changed. (If the position
                                         has shifted, adjust again and check.)
                                                                                          Head shield
                                      3. Adjust with azimuth adjustment screw B so          The head is at High position
                                         that line B of the mirror tape runs in the         during REV.
                                         center between Lch and Rch in the forward
                                         play mode.
                                                                                          Output
                                         Head azimuth adjustment                          level:
                                                                                          Maximum
                                      1. Load VTT724 (VT724) (1kHz) and play it
                                         back in the reverse play mode. Set the Rch             PBHead
                                         output level to max.
                                                                                          FWD Adj B
                                      2. Load VTT703 (VT703) (10kHz) and play it
                                         back in the forward play mode. Adjust the
                                         Rch and Lch output levels to max, with
                                         azimuth adjustment screw B. In this case,
                                         the phase difference should be within 45 .
                                                                                          REV Adj C      HEIGHT Adj A
                                      3. Engage the reverse mode and adjust the
                                         output level to max, with azimuth
                                         adjustment screw C.
                                         (The phase difference should be 45 or
                                         more.)                                                       phase
                                                                                              (0 )             (45 )
                                      4. When switching between forward and
                                         reverse modes, the difference between
                                         channels should be within 3dB. (Between
                                         FWD L and R, REV L and R.)

                                      5. When VTT721 (VT721) (315Hz) is played
                                         back, the level difference between channels
                                         should be within 1.5dB.
 2. Tape speed Test tape: VTT712      1. Check to see if the reading of the F, counter / Tape speed: Built-in volume
    and wow               (3kHz)         wow flutter meter is within 3015 3045(FWD 3015              resistor
    flutter                              / REV), and less than 0.35% (JIS RMS).            3045Hz
    confirmation                                                                         Wow
                                      2. In case of out of specification, adjust the flutter: less
                                         motor with a built-in volume resistor.          than 0.35%

 3. Play back     Test tape: VTT724     1. Play test tape VTT724, and set the volume Speaker out
    frequency                (1kHz)        position at 2V.                           1kHz / 63Hz
    response                 VTT739                                                  :0    3db
    confiramation (63Hz / 1kHz / 10kHz) 2. Play test tape VTT739 and confirm.        1kHz / 10kHz
                                           1kHz / 10kHz: -1   3dB,                   : -1   3db
                                           1kHz / 63Hz: 0    3dB,

                                      3. When 10kHz is out of specification, it will be
                                         necessary to read adjust the azimuth.
                  The tuner section is of an adjustment-freedesign. In case the tuner is in trouble, replace the tuner pack.

1-16
                                                                                                                                                  KS-LX200R

Description of major ICs
   BA4905-V3 (IC961) : Regulator
  1.Pin layout




                      1        2   3       4    5     6        7    8       9   10   11   12

  2.Block diagram


                                                                                                                           REGULATOR




                          EXT




                                                                                                      protection circuit
                                                                                                                                      37K

                                                                                                      Overvoltage                     5K
                   RESET




                           1           2        3          4            5        6        7    8            9                10        11   12
                      RESET                    COMP                VDD 5.7V       CD 8V               VCC                              AJ
                                   EXT                    ACC            AUDIO 9V              CTRL                         ILM 10V         GND
  3.Pin function
     Pin no.          Symbol                                                    Function
        1             RESET                         If VDD voltage becomes 4V or less.RESET output becomes low level.
        2            EXT output                     This output voltage is approximately 0.5V lower than VCC. and max
                                                     output current is 300mA.
        3           COMP output                     A voltage supply for ACC block. This output voltage is approximately
                                                    0.7V lower than VDD'S. The max output current is 100mA.
        4              ACC                          Control of the COMP output by inputting voltage.
        5            VDD output                     This output voltage is 5.7V, and max output current is 100mA.
                                                    This voltage supply is for microcomputer. Whenever back up voltage
                                                    supply is connected, the output keeps on running.
        6           AUDIO output                    This output voltage is 9.0v, and max output current is 500mA.
                                                    This voltage supply for AUDIO.
        7            CD output                      This output voltage is 8.0V, and max output current is 1A.
                                                    This voltage supply for CD.
         8             CTRL                         Output selector of CD. AUDIO, ILM and EXT.
         9              VCC                         To be connected with the BACK UP of car.
        10           ILM output                     This output voltage is 10V, and max output current is 500mA.
                                                    Output voltage is adjustable.
        11                 AJ                       Putting a resistance between ILM and AJ or between AJ and GND
                                                    makes ILM output voltage adjustable.
        12                 GND                      Ground.

                                                                                                                                                        1-17
KS-LX200R

   CXA2510AQ (IC401) : Head AMP / Dolby

  1. Pin layout & Block diagram




                                                                                                              24 LINEOUT2
                                     29 PBOUT2




                                                             27 TAPEIN2

                                                                               26 AUXIN2
                         30 PBEQ2




                                                                                                                                                       21 MSSW
                                                                                             25 DIREF




                                                                                                                             23 TCH2

                                                                                                                                            22 TCL2
                                                    28 GND
                                                                                                                             NR
          PBFB2 31                               120 /70                                                                                                          20 MSMODE
                                                                                                                            OFF/




                                                                                                          +
                                                                                                                            B/C




                                                                                                          -
             PBRIN 32                                                                                                                                             19 DRSW
                                    -
                                    +



                                                                              T2
                                                                                                                                        MS MODE
                                                             X1                                  NR BIAS
         PBREF2 33                                                                                                                                                18 TAPESW
                                    F2
                                                                                             TAPE / AUX
          PBFIN2 34                                                                                                                                               17 INSW
                                                                                                 TAPE EQ
              VCT 35                                                                                                                    NR MODE                   16 NRSW
                        VCT                                                                   FWD / RVS
          PBGND 36                                                                                                                                                15 MRMODE
                                                                                                        Vcc                                           MS ON/
                                                                                                                                                       OFF
                                                                                           LPF            +                             DET                       14 MSOUT
          PBFIN1 37
                                                                                                          -
                                    F1
         PBREF1 38                                                                                        F3                                                      13 DGND
                                                             X1
                                                                              T1
                                    -
                                    +




          PBRIN1 39                                                                                                                                               12 MSTC
                                                                                                          +
                                                                                                          -




          PBFB1 40                               120 /70                                                                               NR                         11 G1FB
                          PBEQ1 1

                                      PBOUT1 2

                                                    Vcc 3

                                                              TAPEIN1 4

                                                                                AUXIN 5

                                                                                              MSLPF 6

                                                                                                               LINEOUT1 7

                                                                                                                              TCH1 8

                                                                                                                                             TCL1 9

                                                                                                                                                        G2FB 10




  2. Pin functions

       Pin No.          Symbol                                       I/O                                                                                           Functions
         1              PBEQ1                                             O                 Resistance for selecting the equalizer amplifier time constant.
         2              PBOUT1                                            O                 Playback equalizer amplifier out put.
         3              Vcc                                               -                 Power supply
         4              TAPEIN1                                           I                 TAPE input.
         5              AUXIN1                                            I                 External input.
         6              MSLPF                                             -                 Cut-off frequency adjustment of the music sensor LPF.
         7              LINEOUT1                                          O                 Line out.
         8              TCH1                                              -                 Time constant for the HLS.
         9              NC                                                -                 Non connection.
        10              G2FB                                              -                 Music signal interval detection level setting.
        11              G1FB
        12              MSTC                                                                Time constant for detecting the music signal interval.
        13              DGND                                              -                 Logic ground (Connect to GND)
        14              MSUOT                                             O                 Music sensor output.
        15              NC                                                I                 Non connection.




1-18
                                                                                                    KS-LX200R

    Pin            Symbol     I/O                                   Functions
     16            NRSW       I         Dolby NR control L:NR OFF H:NR ON
     17            INSW       I         Line amplifier input select control L:TAPE IN H:AUX IN
     18            METAL      I         Playback equalizer amplifier control L:120us H:70us
     19            DRSW       I         Head select control L:FORWARD H:REVERSE
     20            FF/REW     I         Music sensor mode control Low(open):G1        High:G2
     21            MSSW       I         Music sensor control Low(open):MS on High:MS OFF
     22            NC         -         Non connection
     23            TCH2       -         Time constant for the HLS
     24            LINEOUT2   O         Line output
     25            DIREF      -         Resistance for setting the reference current (Connects 20(18)K
                                        between DIREF pin and GND for the standard setting.)
     26            NC         -         Non connection.
     27            TAPEIN2    I         TAPE input.
     28            GND        -         To ground.
     29            PBOUT2     O         Playback equalizer amplifier output.
     30            PBEQ2      O         Resistance for 



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