Service Manuals, User Guides, Schematic Diagrams or docs for : Pioneer Car Audio KEH-P7020R KEH-P7020R_KEH-P7025

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KEH-P7020R_KEH-P7025


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  Service
  Manual
                                                                                         SELECT




                                                                                                                    ORDER NO.
                                                                                                                   CRT2817
                                                        KEH-P7020R/XN/EW
MULTI-CD/DAB CONTROL HIGH POWER CASSETTE PLAYER WITH RDS TUNER

KEH-P7020R
MULTI-CD CONTROL HIGH POWER CASSETTE PLAYER WITH FM/AM TUNER
                                                                                XN/EW

KEH-P7020R
KEH-P7025XN/ES
This service manual should be used together with the following manual(s):
   Model No.        Order No.      Mech.Module                                         Remarks

CX-1011          CRT2406          3L                    Cassette Mech. Module:Mech.Description, Disassembly, Adjustment

NOTE:
Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corpora-
tion.
"Dolby" and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation.
This service manual does not describe the CD test mode.
For the operations in the CD test mode, refer to the CD player's Service manual.
Extension cable of cassette mechanism : Jig No. GGD1121

CONTENTS
1. SAFETY INFORMATION . . . . . . . . . . . . .     .   .   .3     7. GENERAL INFORMATION . . . . . . . . . . . .           .   .   56
2. EXPLODED VIEWS AND PARTS LIST . . . . . .        .   .   .4       7.1 DIAGNOSIS . . . . . . . . . . . . . . . . . .      .   .   56
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM              .   .   14        7.1.1 DISASSEMBRY . . . . . . . . . . . . . .         .   .   56
4. PCB CONNECTION DIAGRAM . . . . . . . . .         .   .   36        7.1.2 CONNECTOR FUNCTION DESCRIPTION                  .   .   58
5. ELECTRICAL PARTS LIST . . . . . . . . . . . .    .   .   44       7.2 IC . . . . . . . . . . . . . . . . . . . . . . .   .   .   60
6. ADJUSTMENT . . . . . . . . . . . . . . . . . .   .   .   54       7.3 OPERATION FLOW CHART. . . . . . . . . .            .   .   66
                                                                     7.4 CLEANING. . . . . . . . . . . . . . . . . . .      .   .   67
                                                                   8. OPERATIONS AND SPECIFICATIONS . . . . . .             .   .   68




           For details, refer to "Important symbols for good services".


PIONEER CORPORATION             4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
PIONEER ELECTRONICS (USA) INC. P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A.
PIONEER EUROPE NV Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936

C PIONEER CORPORATION 2001
                                                                                                  K-ZZA. DEC.2001 Printed in Japan
                                                                                                             2000.printed in Japan
          1                                                             2                                                                                                                         3                                                                               4


    3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
    3.1 BLOCK DIAGRAM(KEH-P7020R/XN/EW)


A
               A       TUNER AMP UNIT




                           FM/AM TUNER UNIT
                                                                                                                                                                                                                                                      Q153                            Q151                              Q155
                                                           FM/AM 1ST IF 10.7MHz                                   MPXREF 41kHz
               CN401                            AMRF           T51 Q51 CF51 CF52 CF53                               AMDET
                   1            AMANT
         ANT               28           ATT                                                                                                                                                                             L ch
                                                                                                                                                                       IC 2 FM MPX                                              6
               2
                                                                                                                                                                                                                         R ch                                                                 Q501
                                                                                                                                                                                                                                5
                                                                                                                                                                                                                                                           RDS                                                          VDD
                                                                                                                                                                                                                                                           DECODER        24
                                                 ANT1 ADJ                         IC1                                                                                                                                   COMP
                                                                                                                                                                                                                                21                    20
                                                                          MIXER, IF AMP, DET.                                                                                                                           LDET                           8       IC 501
                                                                                                                                                                                                                                18
                                                                                                                                                                                                                                                              PM4009A
                              FMANT
                           27                 ATT
                           26
                              RFGND                                                                                                                                                                                                                          11          12
                                                    FMRF
                                                                              CF202                                                                                                                                                                               X501


                                                                                                                              IC 3                                                                                                                           Q402
                                                              RF ADJ        AM 2ND IF X901                                  EEPROM
                                                                             450kHz 10.25MHz




                                                                                                                            FMLOCL
                                                                                    VDD




                                                                                                                                                                                                            STIND
                                                                                                                                                                        SDBW
                                                                                                                                          DGND




                                                                                                                                                                                     FMSD
                                                                                                                DI/DO
                                                                                                         CREQ
                                                                                    VCC
                                                             ANT2 ADJ




                                                                                                                                                                                            NL1
                                                                                                                                                                                                      NL2
                                                                                                                                                 CE2


                                                                                                                                                                 CE1
                                                                                    WC




                                                                                                                                     NC
                                                                                         NC
                                                                                              NC




                                                                                                                                                           CK




                                                                                                                                                                                SL
                                         LOCH                LOCL
                                    23                  25                          7 17 20 22 10 19 14                     24       9        11 12 15 16                   8   13      2     3         4       1
                                                                    VCC
                                                                    VDD


                                                                                                                                                                                                                                                                                                    Q101
                                                                                                                                                                                                                                                                       SWDACC
B                                                                                                                                                                                                                                                                                                                                              BU




                                                                                                                                                                                                                        CN101                                                                       Q102

                                                                                                                                                                                                                                                 5                                    IP-BUS DRIVER
                                                                                                                                                                                                                                                 1                                     5                                    1         TX
                                                                                                                                                                                                                                                                                                   IC 101
                                                                                                                                                                                                                                                 8                                     6 HA12187FP 2                                  RX
                                                                                                                                                                                                                                                 7
                                                                                                                                                                                                                                                                                                            8
                                                                                                                                                                                                                                                 11                                                                    IPPW

                                                                                                                                                                                                                                          CN451                        BUS-
                                                                                                                                                                                                                                     2

                                                                                         D         DECK UNIT                                                           TEL
                                                                                                                                                                                                                                     1
                                                                                                                                                                                                                                           FUSE
                                                                                                                                                                                                                                          200mA
                                                                                                                                                                                                                                                                       BUS+
                                                                                                                                                                                                                                                                       BUS+L                                                                         BUS+L
                                                                                                                                                                                                                                                                                                                                                           TUN L


                                                                                                                                                                                                                                                                       BUS-L                                                                         BUS-L
                                                                                                                                                                                                                                                                                                                                                     TEL
                                                                                     CN252                                                                                                  CN251                                                                                                                                                    TAPE L
                                                                                                                                                                                                                                          CN251
                                                                                1                                                                                                                 Lch                                                                                       BUZZER
                                                       FWD                                                                                                              6                                           3                3
                                                       L-ch
                                                                                                    37                               EQ AMP                                                                                                                                                                                                         MIC751
                                                                                                                                                                                        16 MS                                                                                                                                                                     VST,VC
                                                                                                    36                                                                                        5                                      5
                                                                                5                                                      IC251                                           17 f/R                                          DIRO
                                                       REV                                          39                               HA12228F                                                 6                                      6                                                                                                                     LEVEL IND
                                                       L-ch
                                                                                4                                                                                                                                                                                                54                      24
                                                                                                                                                                20                          MUTE                                          RIMUTE
                                                                                                                                                                                                                    9                9                                         MSIN                    PEE                                          94
                                                                                                                                                                                                                                                                                                                                      LVLINL
                                                                                    CN254                                                                                                                                                                                33
                                                                                                                                                                                                                                                                            RIMUTE                                                                  87
                                                                                                                                                                                              B.U                                                                        55                                                           MUTE
                                                        M2                                                                                                                                                     20                    20          BU                         DIRO
                                                                                2
                                                        SUB         M                                2            5                  18                     19                                                                                                           58 LOADSW
                                                                                                                                                                                                                                                                                                                                                    23
                                                       MOTOR                    1                                                                                      11                                                                                                59 POS                                                   SYSPW
                                                                                                                                                                                              POS                                         POS
                                                                                                                                                                                                               13                    13                                                                                                            13
                                                                                                                MECHANISM                                              13                     NES                                         ES                             61 ES                                                        XOUT
                                                                                                                                                                                                                                                                                                                                                           X601
                                                                                                                  DRIVER                                                                                       15                    15                                  63
                                                                                                                                                                       14                                                                 SC2                               SC2                                                                    15
                                                                                                                                                                                             SC2                                                                         65 SC1
                                                                                                                                                                                                               16                    16                                                                                                    XIN
                                                                                    CN255                                    IC351                                     15                                                                                                66 CM
                                                                                                     1
C                                                                                                                           PA2020A
                                                                                                                                                                                             SC1
                                                                                                                                                                                                               17                    17
                                                                                                                                                                                                                                          SC1
                                                                                                                                                                                                                                                                         68 STBY
                                                         M1                                                                                                            16                         CM                                      CM
                                                                                                                                                                                                               18                    18
                                                        MAIN        M                                                                                                17                     stby                                          STBY
                                                       MOTOR                                                                                                                                                   19                    19                                         SYSTEM CONTROLLER                                                                       PD

                                                                                                                    8                 7          10
                                                                                                                                                                                            LOAD                                     1 LOADSW
                                                                                                                                                                                                                                                                                                  IC 601(2/2)
                                                                                                                                                                                                               11                    11                                                            PD5698B                                         44
                                                                                                                                                                                                                                                                                                                                          EJTIN
                                                                                                   CN253
                                                                                                                        3                 1            5                                          6
                                                                                                                                                                                                                                                                                                                         SWVDD
                                                                                                                                                                                                                                                                                                    DSENS




                                                                                                                                                                                                                                                                                                                                  ILMPW
                                                                                                                                                                                                                                                                                           KYDT



                                                                                                                                                                                                                                                                                                                DPDT




                                                                                                                        3                 1        5                                              6
                                                                                                   CN256                                                                                                                                                                               36         41        35         40        43

                                                                                                     EGN1
                                                                                                      REEL
                                                                                                     SENSE


                                                                                                                                                  S2                                         S1
                                                                                                                                                                                                                                                                                                                                                              BU
                                                                                                                                                 MODE                                       LOAD




                                                                                               E         REEL SENSE PCB
                                                                                                                                                                                                                                                                                                                                                                  BU




                                                                                                                                                                                                                                                                                                                                                    IC 801             DSE

D                                                                                                                                                                                                                                                                                                                                              4              2

                                                                                                                                                                                                                                                                                Q851
                                                                                                                                                                                                                                                                                                                                               TC7SET08FU
                                                                                                                                                                                                                                                                  BU

                                                                                                                                                                                                                                                                                                                                           6     IC 851            1
                                                                                                                                                                                                                                                                                                                                               NJM2360M
                                                                                                                                                                                                                                                                               Q852




    14                                                                                        KEH-P7020R
          1                                                             2                                                                                                                         3                                                                              4
                                                                 5                                                                                              6                                                                                 7                                                                             8




                                                                                                                                                                                                                                                                                                                                                 A
                                                                                                                       RESET
                                                                                                                                                                                                                                                                                                               CN351
                                                                                                            1           IC 961   2                               RL
                                                                                                                                             VDD
                                                                                                                    S-80735ANDZI                                                                                                                                                                                 RL
                                                                                                                                                                                                                                                                                          Q351
5
                                                                                                                                                                                                                                                                                                               CN352-1
                                                                                                  12                                                             PL                                                                                                                                  RL
                                                                      52
                                                                                                                                                                                                                                                                                                           1                    PL
                                                                                               RESET
                                                                                TMUTE                                                                                                                                                                                                     Q352



                                                                      48                                                                                         FL                                                                                                                                  FL
                                                                                FM/AM                                                                                                                                                                                                                      5                    FL
                                                                                                                                                                                                                                                                                          Q353
                                                                                      SYSTEM CONTROLLER
                                                                                                       IC 601(1/2)
                                                                                                        PD5698B                                                                                                                                                                                                 CN352-2
                                                                      19
                                                                                LDET                                                                                                                           VDD REGULATOR
                                                                                                                                                                                                                       Q911
                                                                      51                                                                                                                           VDD
                                                                                NL2DT

                                                                                                                                                                                                                                                                                           CN901
                                                                                                                                                                                                                                        ACC
                                                                      95
                                                                                NL1
                                                                      50
                                                                                SD
                                                                                                                                                                                                                BACKUP SENSE                            BU
                                                                      97                                                                     73                                                                                                                                                           FUSE
                                                                                SL                                                BSENS                                                                                                                                                              2            2
                                                                                                                                                                                                                                                                                                                           BACK UP




                                                                                                                                                                                                                                                                  BU
                                                                      53                                                                                                                                                                                                                                  10A
                                                                                SDBW                                                                                                                            Q931
                                                                      72                                                                     74                                                                                                   ACC
                                                                                TUNPCE                                            ASENS                                                                                                                                                              3            3
                                                                      2                                                                                                                                                                                                                                                         ACC
                                                                                TUNPCK
                                                                      71                                                                                                                                         ACC SENSE
             BU                                                                 TUNPCE2                                                                                                                                                  Q932
                                                                      1
                                                                                TUNPDO                                             ISENS
                                                                                                                                             83                                                                                                 ILL SENSE
                                                                                                                                                                                                                                                                                                     5            5
                                                                                                                                                                                                                                                                                                                                                 B
                                                                      82
                                                                                ASENBO                                                                                                                                                                                                                                           ILL
                                                                                                                                                                                                                       Q951
                                                                                                                                                                                                         VDD
                                                                                                                                                                                                                                                                                                     8            8
                                                                                                            IPPW




                                                                                                                                             10                                                                                                                                                                          TELMUTE
                                                                                                                                   TELIN
                                                                                                       RX
                                                                                           TX




    TX                                                                                                                                                                                                     TELEPHONE MUTE
                                                                                          30 29 81                                                                                                                                                                                                   1            1
    RX                                                                                                                                                                                                                                                                                                                          GND




                                             ELECTRONIC VOLUME/
                                              SOURCE SELECTOR                                                                                                                                                                    POWER AMP
                         TUN L          42 IN3-L
                                                                                          12                                                                                                                                                                 23
                   BUS+L                43 IN4+L                                  PL                                                                                                                                                                  FL-                                        10              10
                                                                                                                                                                                                                                                             21                                                                  FL-
                   BUS-L                44 IN4-L         IC 203                           10                                                                                                                    14                    IC 301          FL+                                        12              12
                                                                                     FL                                                                                                                               FLIN                                   3                                                                   FL+
                                                        PML009A                                                                                                                                                 12
                                                                                                                                                                                                                                     PAL007A          RL-                                            9            9
                   TEL                  40 IN1-L                                          11                                                                                                                                                                                                                                     RL-
                                                                        RL                                                                                                                                            RLIN                                   5
                   TAPE L               41                                                                                                                                                                                                           RL+                                         11              11
                                              IN2-L              SEL_OUT_L                                                                                                                                             MUTE           STBY                                                                                       RL+
                                                                                                                                                                                                                                               B.REMOTE
                                              MIC_IN 13                1                                                                                                                                              22               4         25
                                                                                                                                                                                                                                                                                                     6            6
                                                                                                                                                                                                                                                                                                                               B.REM
                  MIC751        VST,VCK,VDT
                                                                                                                                 MUTE
                                                                                                                                 Q982
                         LEVEL INDICATOR IC 132                                                                 B.U                                                                                                                     SYS+B REGULATOR
                                                                                                                                                                                                                                                         Q921
                                                    7             5
                                                                                                                                                                                                                                     SYS+B                                     BU
                                                                                                                                                  MUTE
                  94                                                                                                                              Q301
    LVLINL
                                                    NJM4558MD
                  87
    MUTE

                  23                                                                                                                                                                                                    SYSPW                         Q922                                                                             RR   RR
SYSPW                                                                                                                                                                                                                                                                                                                                   -    +
                 13
    XOUT                                                                                                                                                                                                                                                                                                          BACK                 FR   FR
                         X601
                                                                                                                                                                                                                                                                                                                   UP                   -    +
                 15                                                                                                                                                                                                                                                                                                       B.
         XIN
                                                                                                                                                                                                                                                                                                                  ILL REM              FL   FL
                                                                                                                                                                                                                                                                                                                                        -    +
                                                                                                                                                                                                                                                                                                                  GND ACC              RL
                                                                                                                                                                                                                                                                                                                                        -
                                                                                                                                                                                                                                                                                                                                            RL
                                                                                                                                                                                                                                                                                                                                             +
                                                                                                                                                                                                                                                                                                                                                 C
                                        IC 631
LLER                                  PDH0046A


                 44
        EJTIN
ILMPW




3
                                                        CN801
                                                                                          S1850                      B PANEL UNIT                                                                                                                                 C KEYBOARD UNIT
                                                                 8         8
                                             Q803                                EJECT                                     CN1901
                            BU                             ILB                                                             ILB
                                                                 7         7                                    4      9
                                                                                                                                                                                                                                                  Q1961                       Q1963
                                                                                                                                                                                                                                                                                               GREEN


                                             Q804                                                                                                                                                                                        Q1962
                                                                                                                                                                                                                                                                                      Q1964
                                             Q802                                                                                                       3.3V REGULATOR
                                                    SWDVDD       2                                                    11
                                                                                                                           SWVDD                    5        IC 1904    1                           FONT ROM                                                                           Q1965
                                BU                                         2                                    2
                                                                                                                                                        S-818A33AUC-BGN
                                                                                                                                                                                                      IC 1902
                                                    Q801                                                                                                                                             PD8088A
                                                                                                                                                    REMOTE CONTROL SENSOR
                                                                                                                                                                           3                                                                                                           AMBER
                                                        DPDT                                                               DPDT            OPT IN            IC 1903
                                                                 11                                                    3                                  TSOP1840SB3V 1
                                                                                                                                                



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