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Kenwood KDC-MP6025 Service Manual
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Kenwood KDC-MP6025 Service Manual

Cd receiver
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See also: Instruction Manual
CD RECEIVER
KDC-MP6025/MP625
/MP858
/W6527/W6527Y
SERVICE MANUAL
KDC-MP6025
(K3)
KDC-MP625
(K2)
Panel assy
(A64-3213-02) :K2
(A64-3214-02) :K3
KDC-MP858
(M1)
Panel assy
(A64-3215-02)
KDC-W6527
(E)
KDC-W6527Y
(E1)
Panel assy
(A64-3217-02)
Plastic cabinet assy
(A02-2732-03)
Remote controller assy (RC-505)
(A70-2059-05) :K2K3M1
Size AA battery
(Not suplied) :K2K3M1
Lever
Mounting hardware assy
(D10-4589-04)
(J21-9716-03)
x2
Remote controller assy (RC-420)
(A70-2055-05) :EE1
TDF PANEL INFORMATION
MODEL
TDF PANEL No. TDF NAME
KDC-MP625/MP858
Y33-1990-61
KDC-MP6025
Y33-1990-62
KDC-W6527/W6527Y Y33-1990-63
© 2004-1 PRINTED IN JAPAN
B53-0124-00 ( N ) 2704
CD MECHANISM EXTENSION CORD (24P) : W05-0935-00
DC cord
(E30-6294-05) :M1
(E30-6295-05) :K2K3
Screw set
(N99-1723-05) :K2K3M1
Screw
(N09-6212-05)
TDF-46D
TDF-46DB
TDF-W6527
Escutcheon
(B07-3098-02) :K2
(B07-3100-02) :K3
Escutcheon
(B07-3098-02)
Escutcheon
(B07-3083-02)
DC cord
(E30-6063-15) :EE1
Antenna adaptor
(T90-0523-05) :EE1

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Summary of Contents for Kenwood KDC-MP6025

  • Page 1 CD RECEIVER KDC-MP6025/MP625 /MP858 /W6527/W6527Y SERVICE MANUAL © 2004-1 PRINTED IN JAPAN B53-0124-00 ( N ) 2704 CD MECHANISM EXTENSION CORD (24P) : W05-0935-00 KDC-MP6025 (K3) KDC-MP625 (K2) Escutcheon Panel assy (B07-3098-02) :K2 (A64-3213-02) :K2 (B07-3100-02) :K3 (A64-3214-02) :K3 KDC-MP858...
  • Page 3 KDC-MP6025/MP625/MP858 KDC-W6527/W6527Y COMPONENTS DESCRIPTION SUB-CIRCUIT UNIT (X16-2510-10/X16-2722-70) Ref. No. Application / Function Operation / Condition / Compatibility Panel µcom 3.3V Regulater The power supply of IC and VFD (Logic) which are driven by 3.3V Remote Control IC Buffer IC It is change into 3.3V from 5V FL BLK SW VFD is turned on when Q1’s base level goes “H”...

  • Page 4: Components Description

    KDC-MP6025/MP625/MP858 KDC-W6527/W6527Y COMPONENTS DESCRIPTION Ref. No. Application / Function Operation / Condition / Compatibility Q13,15,16 FL&ILL AVR When Q13’2pin goes Hi, ILL AVR outputs 10.5V. Q25,26 P-ANT SW When Q23’base goes Hi, P-ANT SW outputs 14V. Q27,30 P-CON SW When Q30’base goes Hi, AVR outputs 14V.

  • Page 5: Microcomputer's Terminal Description

    KDC-MP6025/MP625/MP858 KDC-W6527/W6527Y MICROCOMPUTER’S TERMINAL DESCRIPTION SYSTEM MICROCOMPUTER : 30624MGPA27GP (X34 : IC1) Truth Value Pin No. Pin Name Module Application Processing Operation Description Table Not used Output : L OPEL_REMO EXTRA External display remote control input BYTE 0V GND direct connection Used when writing to system µcom...
  • Page 6 KDC-MP6025/MP625/MP858 KDC-W6527/W6527Y MICROCOMPUTER’S TERMINAL DESCRIPTION Truth Value Pin No. Pin Name Module Application Processing Operation Description Table PM_MOT1 P-MECHA Panel motor control 1 Refer to truth value table. PM_MOT2 P-MECHA Panel motor control 2 Refer to truth value table. FLASH EPM input terminal...
  • Page 7 KDC-MP6025/MP625/MP858 KDC-W6527/W6527Y MICROCOMPUTER’S TERMINAL DESCRIPTION Truth Value Processing Operation Description Pin No. Pin Name Module Application Table OPEL_CE EXTRA External display control request External display EXT_CONT EXTRA External amp control P_CON Power supply I/O External amp control terminal Power ON : H, Power OFF : Hi-Z, All OFF : Hi-Z...
  • Page 8 KDC-MP6025/MP625/MP858 KDC-W6527/W6527Y MICROCOMPUTER’S TERMINAL DESCRIPTION Truth Value Table w Panel Motor Control u E’s Light Truth Value Table OPEN CLOSE STOP WAIT E’s-SW (16 pin) E’s1(67 pin) E’s2 (66 pin) PM_MOT1 WOW-ON FLAT Hi-Z Hi-Z PM_MOT2 WOW-OFF FLAT Hi-Z E’s Light 100Hz...
  • Page 9 KDC-MP6025/MP625/MP858 KDC-W6527/W6527Y MICROCOMPUTER’S TERMINAL DESCRIPTION PANEL MICROCOMPUTER : 30622MWP111GP (X16-251 : IC1) Pin No. Pin Name Module Application Processing Operation Description Not used Output : L REMO REMO Remote control signal input Pulse width DET GSO0 FL dot section data output terminal 0...
  • Page 10 KDC-MP6025/MP625/MP858 KDC-W6527/W6527Y MICROCOMPUTER’S TERMINAL DESCRIPTION Pin No. Pin Name Module Application Processing Operation Description Used when rewriting µcom 45~49 Not used Output : L PON_DC_DC Power supply I/O DC/DC control terminal H : FL+B ON, Hi-Z : FL+B OFF BLUE_LED...

  • Page 11: Test Mode

    KDC-MP6025/MP625/MP858 KDC-W6527/W6527Y TEST MODE How to enter the Test Mode Special Display in the TUNER Mode Reset while pressing both [1] key and [3] key. In the TUNER mode, there are abnormalities in the front end, etc. when the following displays are made.
  • Page 12 KDC-MP6025/MP625/MP858 KDC-W6527/W6527Y TEST MODE Audio Related Matters Backup Current Measurement • When [Q] key is pressed intermittently, audio adjust mode When reset in the Acc OFF (Back Up ON) condition, MUTE is entered. terminal goes off in 2 seconds instead of 15 seconds. (When •...
  • Page 13 KDC-MP6025/MP625/MP858 KDC-W6527/W6527Y TEST MODE Initializing AUDIO Related Value Settings Frequency Spun Switching (K/M type) During STANDBY, by pressing key intermittently, AU- While pressing [1] key and [5] key, turn power ON. DIO setting values will reset to the default values of the Test Mode.

  • Page 14: Pc Board (Component Side View)

    KDC-MP6025/MP625/MP858 KDC-W6527/W6527Y PC BOARD (COMPONENT SIDE VIEW) ELECTRIC UNIT X34-301x-xx/X34-3222-70 (J76-0025-22/J74-1577-02) PRE OUT FRONT REAR 11 12 8 4 3 2 C521 D515 D510 D516 C522 C520 C507 R522 R528 R504 R521 C515 D503 L301 D504 D500 R529 R527 C511...
  • Page 15 KDC-MP6025/MP625/MP858 KDC-W6527/W6527Y R103 D516 R130 R133 X34-301x-xx R132 X34-3222-70 Ref. No. Address C112 C114 IC21 R122 IC10 IC12 IC13 IC14 IC20 R273 R274 P207 IC20 253/W200 Refer to the schematic diagram for the values of resistors and capacitors.
  • Page 16 KDC-MP6025/MP625/MP858 KDC-W6527/W6527Y PC BOARD (FOIL SIDE VIEW) ELECTRIC UNIT X34-301x-xx/X34-3222-70 (J76-0025-22/J74-1577-02) R139 C117 R125 R127 R115 R123 R453 R118 R120 R445 E BE R270 C422 C421 C120 R136 R201 R262 R207 R264 R260 D201 C205 R258 R211 R206 R212 IC11...
  • Page 17 KDC-MP6025/MP625/MP858 KDC-W6527/W6527Y D301 X34-301x-xx X34-3222-70 R412 Ref. No. Address R302 R411 IC11 R424 R423 R453 R460 R458 R456 R459 Q402 R467 R455 R442 C431 R437 R220 R222 R443 C432 R406 R405 C414 R219 R221 C437 R415 R403 R312 R440 R313...
  • Page 18 KDC-MP6025/MP625/MP858 KDC-W6527/W6527Y PC BOARD (COMPONENT SIDE VIEW) CD PLAYER UNIT X32-5500-00 (J74-1552-12) RFOK CP12 CP13 CP15 MIACK X32-5500-00 Ref. No. Address Refer to the schematic diagram for the values of resistors and capacitors.
  • Page 19 KDC-MP6025/MP625/MP858 KDC-W6527/W6527Y PC BOARD (FOIL SIDE VIEW) CD PLAYER UNIT X32-5500-00 (J74-1552-12) Vref FLAG HOLD MIRR LOCK TRK IN TRK OUT FCS DOWN FCS UP C22 C23 D3.3V DAVdd3.3V SDIO BCKIA 12EJE A.+8V LRCKIA /EJECT SLED IN SLED OUT A.GND...
  • Page 20 KDC-MP6025/MP625/MP858 KDC-W6527/W6527Y PC BOARD (COMPONENT SIDE VIEW) (FOIL SIDE VIEW) SUB-CIRCUIT UNIT SUB-CIRCUIT UNIT X16-2510-10 (J76-0026-22) X16-2510-10 (J76-0026-22) X16-2722-70 (J74-1574-02) X16-2722-70 (J74-1574-02) R904 R905 CP11 CP10 CP12 D901 FLGND PRST PSDA PREQ DGND X16-2510-10 X16-2510-10 X16-2722-70 X16-2722-70 Ref. No. Address Ref.
  • Page 21 KDC-MP6025/MP625/MP858 KDC-W6527/W6527Y ∗ 1 GND REMO O CE PRE OUT 4 O CLK O DATA FRONT REAR/NF (X34-301x-xx) (X34-3222-70) L301 R504 C501 C509 0.01 0.01 ∗ C507 PRE-OUT MUTE SW 0.01 DRIVER RFGND R420 R421 R408 R409 D403 FMANTIN D301...
  • Page 22 KDC-MP6025/MP625/MP858 KDC-W6527/W6527Y ∗ TP110 R524 4.3K POWER TP111 R526 D512 C514 R525 6.8V 6.8V R520 0-4.4V 6.8V 6.8V D511 C513 D504 R527 0.01 D501 D502 D505 D500 D506 R522 7.5K D503 L401 4.7uH C406 IC14 RESET IC LEVEL METER LEVEL ∗...
  • Page 23 KDC-MP6025/MP625/MP858 KDC-W6527/W6527Y TP601 ∗ AC-OUT MUTE TP138 DRIVER C208 1000P C209 SUB-OUT 0.01 ∗ MUTE C210 0.01 DRIVER ∗ ∗ C211 0.01 CP201 R136 100K ∗ 3.5V C212 0.01 5.0V BU DET R273 2.2K WOW MODE1 ILL DET 0-5.0V 0V or...
  • Page 24 100u16 • DC voltages are as measured with a high impedance voltmeter. Values may vary FL&ILL AVR slightly due to variations between indi- TP64 vidual instruments or/and units. KDC-MP6025/MP625/MP858/W6527/W6527Y (1/2) X34-301x-xx/X34-3222-70 (4/5)
  • Page 25 KDC-MP6025/MP625/MP858 KDC-W6527/W6527Y (X34-3xxx-xx) C210-212,459, C402,405, C464,465, MODEL NAME UNIT No. C300 C321 C322 WHT/BLK GRN/BLK 460,476,477 410,411 468,469 GRY/BLK VIOL/BLK KDC-MP625 X34-3010-10 YES NO X86-3760-11 VIOL KDC-MP6025 X34-3010-11 X86-3760-11 KDC-MP858 X34-3010-21 NO YES X86-3760-11 P CONT KDC-757 X34-3010-22 X86-3760-11 BLU/WHT PNK/BLK EXT.
  • Page 26 KDC-MP6025/MP625/MP858 KDC-W6527/W6527Y (X16-2510-xx) (X16-2272-70) FL GND FL+B SW 3.3V FL BUFFER IC REGULATOR CP9 100 5.0V 3.3V 3.3V NC16 3.3V FL+B NC13 3.3V SW5V REMOTE TP32 CONTROL 5.0V 4.7uH 4.7K 4.7K (X16-2570-10) (X16-2732-70) TP31 SCSEQ TP30 C1 1 FDC+ FDC+...
  • Page 27 • DC voltages are as measured with a high impedance volt- meter. Values may vary Q7,9 Q8,10 GREEN FL GND LED SW slightly due to variations be- LED SW LED SW tween individual instruments or/and units. KDC-MP6025/MP625/MP858/W6527/W6527Y (2/2) X16-2510-10/X16-2722-70 (2/2)
  • Page 28 KDC-MP6025/MP625/MP858 KDC-W6527/W6527Y CD PLAYER UNIT (X32-5500-00/01) LEVEL SHIFT (DA) 0V (3.3V 5.0V) IOP1 IOP2 R34 4.7K (MP3) 0/3.3V C28 10 LEVEL SHIFT (3.3V 5.0V) 16.000MHz R35 100K 3.3V 0.2V 100K RESET 3.3V 3.8/0V 3.3V AVDD1 DGND1 2.4/0V 1000P 3.3V RFOK RFOK 3.3V...
  • Page 29 KDC-MP6025/MP625/MP858 KDC-W6527/W6527Y Q9,10 Vref DPU1(X92- ) 1.7Vp-p 270K OPTICAL 6800P PICKUP 0.3Vp-p 1.65V 1.65V RF2- 1.65V 1.0Vp-p FCS+ 1.0Vp-p TRK+ 3.9K TRK- 1.7Vp-p 3.3V FCS- 3300P ADVDD 3.3V 0.01 1.65V 3.0/0.3V 0.01 ADGND 91CW12AFG-4VF6 3.3/0V UPD63712GC TEST0 RF AMP/SERVO TC94A20F-010...

  • Page 30: Exploded View (Mechanism)

    KDC-MP6025/MP625/MP858 KDC-W6527/W6527Y EXPLODED VIEW (MECHANISM) DPU1 DFPC1 (X32) φ : N09-4460-05 : N09-4472-15 M1.7x8.5 : N09-6004-05 M1.7x2.5 : N09-6007-05 M2x2 φ : N09-6051-05 2x6(BLK) : N19-2163-04 1.6 WASHER : N39-2020-46 M2x2 : N09-6108-05 M2x3.5 φ : N09-6155-05 Refer to the service manual X92-4030-0x (B51-7867-00) for CD mechanism operation.

  • Page 31: Exploded View (Unit)

    KDC-MP6025/MP625/MP858 KDC-W6527/W6527Y EXPLODED VIEW (UNIT) SIZE AA BATTERY DME1 φ2.6x6(BLK) M2x2 N09-6139-05 N78-2660-45 φ2x6 M1.7x2 N09-6140-05 N80-2006-46 φ2x8(BLK) N80-2008-45 M2x2 N09-6141-05 φ3x5 N83-3005-46 M2x2.5 N09-6142-05 φ3x8 φ1.7x4.5 N09-6190-05 N83-3008-46 φ2x5 φ2x4(BLK) N09-6212-05 N86-2004-45 φ3x10 WASHER 1.6x4 N19-2184-04 N80-3010-46 φ2.6x6 N82-2608-46 WASHER 1.2x3...

  • Page 32: Parts List

    TAPPING SCREW (1.7X4.5) E30-6291-05 CORD WITH PINPLUG K3M1E1 N09-6212-05 TAPPING SCREW (2X5) E30-6292-05 CORD WITH DIN CONNECTOR E1E N19-2184-04 FLAT WASHER (1.6X4.0X0.25) E : KDC-W6527 E1 : KDC-W6527Y K2 : KDC-MP625 Indicates safety critical components. K3 : KDC-MP6025 M1: KDC-MP858...
  • Page 33 J 1/4W PDTA114EE TRANSISTOR RK73GB2A103J CHIP R J 1/10W DTC143ZUA DIGITAL TRANSISTOR Q7,8 DTA144EE DIGITAL TRANSISTOR RK73GB2A473J CHIP R 1/10W Q7,8 PDTA144EE TRANSISTOR E : KDC-W6527 E1 : KDC-W6527Y K2 : KDC-MP625 Indicates safety critical components. K3 : KDC-MP6025 M1: KDC-MP858...
  • Page 34 J 1/10W CK73FB1A105K CHIP C 1.0UF RK73GB2A104J CHIP R 100K J 1/10W CK73FB0J106M CHIP C 10UF R48,49 RK73GB2A331J CHIP R J 1/10W E : KDC-W6527 E1 : KDC-W6527Y K2 : KDC-MP625 Indicates safety critical components. K3 : KDC-MP6025 M1: KDC-MP858...
  • Page 35 CHIP C 0.47UF CD04BE1J820M ELECTRO 82UF 63WV C452 CK73FB1C474K CHIP C 0.47UF K3M1E1 CK73FB1C105K CHIP C 1.0UF C453,454 CD04AS1H3R3M ELECTRO 3.3UF 50WV E : KDC-W6527 E1 : KDC-W6527Y K2 : KDC-MP625 Indicates safety critical components. K3 : KDC-MP6025 M1: KDC-MP858...
  • Page 36 J 1/10W L78-0862-05 RESONATOR (16.00MHZ) R141 RK73GB2A474J CHIP R 470K J 1/10W L77-2002-05 CRYSTAL RESONATOR R201 RK73GB2A104J CHIP R 100K J 1/10W E : KDC-W6527 E1 : KDC-W6527Y K2 : KDC-MP625 Indicates safety critical components. K3 : KDC-MP6025 M1: KDC-MP858...
  • Page 37 CHIP R J 1/10W R511 RK73EB2E472J CHIP R 4.7K J 1/4W R310,311 RK73GB2A103J CHIP R J 1/10W R512-516 RK73EB2E101J CHIP R J 1/4W E : KDC-W6527 E1 : KDC-W6527Y K2 : KDC-MP625 Indicates safety critical components. K3 : KDC-MP6025 M1: KDC-MP858...
  • Page 38 DIGITAL TRANSISTOR D505,506 STZ6.8N ZENER DIODE Q47-50 DTC143TUA DIGITAL TRANSISTOR D507-510 1SR154-400 DIODE Q55-57 DTC143TE DIGITAL TRANSISTOR Q56,57 DTC143TE DIGITAL TRANSISTOR K2K3M1 E : KDC-W6527 E1 : KDC-W6527Y K2 : KDC-MP625 Indicates safety critical components. K3 : KDC-MP6025 M1: KDC-MP858...
  • Page 39 MOUNTING HARDWARE J21-9677-22 MOUNTING HARDWARE J21-9678-13 MOUNTING HARDWARE J90-1001-11 GUIDE J90-1023-03 GUIDE N09-4460-05 TAPTITE SCREW (OVAL P TAPTIT) N09-4472-15 MACHINE SCREW (M1.7X8.0) E : KDC-W6527 E1 : KDC-W6527Y K2 : KDC-MP625 Indicates safety critical components. K3 : KDC-MP6025 M1: KDC-MP858...

  • Page 40: Specifications

    KENWOOD ELECTRONICS GULF FZE KENWOOD ELECTRONICS UK LIMITED P.O. Box 61318, Jebel Ali, Dubai, U.A.E. Kenwood House, Dwight Road, Watford, Herts, WD18 9EB, United Kingdom KENWOOD ELECTRONICS (THAILAND) CO., LTD. KENWOOD ELECTRONICS DEUTSCHLAND GMBH 956 Udom Vidhya Building (Olympia) Rama IV Road, Silom, Bangrak, Bangkok 10500 Thailand Rembrücker-Str.

This manual is also suitable for:

Kdc-mp625Kdc-mp858Kdc-w6527Kdc-w6527yKdc-mp6527Kdc-mp6527y

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