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Kenwood KDC-X679 Service Manual
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Kenwood KDC-X679 Service Manual

Cd receiver
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Download this manual See also: Instruction Manual
CD RECEIVER
KDC-X679
SERVICE MANUAL
Plastic cabinet assy
(A02-2732-03)
Remote controller assy (RC-505)
(A70-2059-05)
TDF PANEL INFORMATION
MODEL
KDC-X679
Panel assy
(A64-3212-12)
Lever
(D10-4589-04)
x2
Size AA battery
(Not suplied)
TDF PANEL No. TDF NAME
Y33-1990-60
© 2004-1 PRINTED IN JAPAN
B53-0122-00 ( N ) 764
CD MECHANISM EXTENSION CORD (24P) : W05-0935-00
Escutcheon
(B07-3083-02)
Mounting hardware assy
(J21-9716-03)
Screw
(N09-6212-05)
TDF-46DX
DC cord
(E30-6294-05)
Screw set
(N99-1723-05)

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Summary of Contents for Kenwood KDC-X679

  • Page 1 CD RECEIVER KDC-X679 SERVICE MANUAL © 2004-1 PRINTED IN JAPAN B53-0122-00 ( N ) 764 CD MECHANISM EXTENSION CORD (24P) : W05-0935-00 Panel assy Escutcheon (A64-3212-12) (B07-3083-02) Plastic cabinet assy Lever Mounting hardware assy DC cord (A02-2732-03) (D10-4589-04) (J21-9716-03) (E30-6294-05)

  • Page 3: Components Description

    KDC-X679 COMPONENTS DESCRIPTION SUB-CIRCUIT UNIT (X16-2510-10) 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 KDC-X679 COMPONENTS DESCRIPTION Ref. No. Application / Function Operation / Condition / Compatibility Q10,11 SERVO+B AVR (Panel Mecha) When Q10’base goes Hi, S+B AVR outputs 8.5V. SW for IC7 When Q12’base gose Lo, IC7 is turned on. Q13,15,16 FL&ILL AVR When Q13’2pin goes Hi, ILL AVR outputs 10.5V.

  • Page 5: Microcomputer's Terminal Description

    KDC-X679 MICROCOMPUTER’S TERMINAL DESCRIPTION SYSTEM MICROCOMPUTER : 30624MGPA27GP (X34 : IC1) Truth Value Processing Operation Description Pin No. Pin Name Module Application Table Not used Output : L OPEL_REMO EXTRA External display remote control input Not used BYTE 0V GND direct connection Used when writing to system µcom...
  • Page 6 KDC-X679 MICROCOMPUTER’S TERMINAL DESCRIPTION Truth Value Processing Operation Description Pin No. Pin Name Module Application Table OFF : Hi-Z, Panel come off : Pulse driven, EXTRA (D) SI control terminal ILL_ON and OPEN (Power_ON) : H PM_MOT1 P-MECHA Panel motor control 1 Refer to truth value table.
  • Page 7 KDC-X679 MICROCOMPUTER’S TERMINAL DESCRIPTION Truth Value Processing Operation Description Pin No. Pin Name Module Application Table ANT_CONT TUNER Power antenna control Tuner ON : H ILLMI_DET EXTRA Dimmer ILL detect L : ON, H : OFF BU detect : L, BU no detect and Momentary...
  • Page 8 KDC-X679 MICROCOMPUTER’S TERMINAL DESCRIPTION Truth Value Table w Panel Motor Control i CD_MOTOR, CD_LOEJ OPEN CLOSE STOP WAIT CD_MOTOR CD_LOEJ PM_MOT1 Stop Hi-z PM_MOT2 Load Eject e Panel Mechanism Control Brake Hi-z FULL_OPEN FULL_CLOSE OTHER Use Prohibited PM_OPEN PM_CLOSE r AFS Control...
  • Page 9 KDC-X679 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-X679 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 Power supply I/O...

  • Page 11: Test Mode

    KDC-X679 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-X679 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-X679 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-X679 PC BOARD (COMPONENT SIDE VIEW) ELECTRIC UNIT X34-3000-10 (J76-0024-22) PRE OUT FRONT REAR C521 11 12 8 4 3 2 R528 D515 D510 D516 R529 C522 C520 R527 D503 C511 R523 R524 L301 D511 C401 C515 L101 C407 C402...
  • Page 15 KDC-X679 X34-3000-10 Ref. No. Address D516 IC10 R130 IC13 O G I IC15 R133 IC16 R132 IC17 C112 IC20 C114 R122 R273 P207 COR DET IC20 Refer to the schematic diagram for the values of resistors and capacitors.
  • Page 16 KDC-X679 PC BOARD (FOIL SIDE VIEW) ELECTRIC UNIT X34-3000-10 (J76-0024-22) C116 R525 R140 C119 C115 R129 R124 C117 R126 R125 D101 R127 R111 R115 R123 R109 R118 R120 D501 D502 C120 R136 R201 R227 R202 R262 R207 R258 D201 C205...
  • Page 17 KDC-X679 C505 C506 D301 C524 C502 C501 R426 R425 R429 R430 R408 R302 R409 R414 R413 C302 R417 R418 R220 X34-3000-10 R222 R219 Ref. No. Address R221 IC11 IC14 R307 C465 C464 C485 R481 R480 C484 R312 C317 IC14 R316...
  • Page 18 KDC-X679 PC BOARD (COMPONENT SIDE VIEW) CD PLAYER UNIT X32-5560-00 (J74-1599-12) IC14 R138 R135 R128 R123 R147 R146 CP12 R129 CP13 CP15 R143 X32-5560-00 Ref. No. Address IC14 Refer to the schematic diagram for the values of resistors and capacitors.
  • Page 19 KDC-X679 PC BOARD (FOIL SIDE VIEW) CD PLAYER UNIT X32-5560-00 (J74-1599-12) C51 C55 CP10 TRK IN R109 R112 R152 R110 R108 R111 TRK OUT R117 FCS DOWN R119 ADCIN FCS UP R130 IC13 IC10 EMPH D.OUT A.GND 12EJE R120 R118...
  • Page 20 KDC-X679 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) R904 R905 CP11 CP10 CP12 D901 FLGND PRST PSDA PREQ DGND X16-2510-10 X16-2510-10 IL+B Ref. No. Address Ref. No. Address Refer to the schematic diagram for the values of resistors and capacitors.
  • Page 21 KDC-X679 (X34-3000-10) (NOT USED) TP110 REMO O CE O CLK TP111 SUB WOOFER O DATA PRE OUT FRONT REAR R520 C504 C503 C506 C505 C502 C501 C513 2200P 2200P 2200P 2200P 2200P 2200P 0.01 D505 D517 D506 D501 D502 D503...
  • Page 22 KDC-X679 R524 4.3K POWER R526 D512 C514 R525 6.8V 6.8V 0-4.4V 6.8V 6.8V D511 D504 R527 D517 R522 AC-OUT 7.5K MUTE DRIVER SUB-OUT MUTE DRIVER TP141 WOW MODE1 WOW MODE2 R105 R104 WOW MODE3 R201 100K R202 FOCUS L401 2.2K OPEL REMO 4.7uH...
  • Page 23 KDC-X679 TP601 L201 4.7uH R132 C208 R133 1000P C209 0.01 R136 100K 5.0V BU DET R273 2.2K ILLUMI DET ANT CONT 0-5.0V R272 2.2K P CON R274 2.2K EXT CONT OPEL CE OPEL CLK OPEL DATA CP207 R265 47K EX AMP...
  • Page 24 (exposed parts are acceptably insulated from the supply circuit) B LINE B LINE before the appliance is returned to the customer. KDC-X679 (1/2) • DC voltages are as measured with a high impedance voltmeter. Values may vary slightly due to variations between individual instruments or/and units.
  • Page 25 KDC-X679 (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 I 5.0V 4.7uH 4.7K 4.7K (X16-2570-10) (X16-2732-70) TP31 SCSEQ TP30 C1 1 FDC+ FDC+...
  • Page 26 • DC voltages are as measured with a high impedance voltme- Q7,9 Q8,10 GREEN FL GND LED SW ter. Values may vary slightly LED SW LED SW due to variations between indi- vidual instruments or/and units. KDC-X679 (2/2) X16-2510-10 (2/2)
  • Page 27 KDC-X679 CD PLAYER UNIT (X32-5560-00/0-01) (X32-5590-00/0-01) LEVEL SHIFT (3.3V 5.0V) (DA) 3.3V (MP3) 0/3.3V D.OUT DAC RST TP32 LEVEL SHIFT 12EJE SW (3.3V 5.0V) 12EJE-SW 16.000MHz TP29 R151 LEVEL SHIFT LOS SW 100K LOS-SW (3.3V 5.0V) RESET 3.3V 3.8/0V DATA 2.4/0V...
  • Page 28 KDC-X679 Q9,10 TP39 ADCIN Vref DPU1(X92- ) R34 4.7K 1.7Vp-p 270K IOP1 IOP2 OPTICAL 6800P PICKUP C28 10 0.3Vp-p 1.65V R35 100K 3.3V RF2- 1.65V 1.0Vp-p FCS+ 1.0Vp-p 0.2V TRK+ 3.9K TRK- 1.7Vp-p FCS- 3300P 3.3V ADVDD AVDD1 3.3V DGND1 0.01...

  • Page 29: Exploded View (Mechanism)

    KDC-X679 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 30: Exploded View (Unit)

    KDC-X679 EXPLODED VIEW (UNIT) SIZE AA BATTERY DME1 φ2.6x6(BLK) N78-2660-45 M2x2 N09-6139-05 φ2x6 M1.7x2 N09-6140-05 N80-2006-46 φ2x8(BLK) M2x2 N09-6141-05 N80-2008-45 φ3x5 N83-3005-46 M2x2.5 N09-6142-05 φ3x8 φ1.7x4.5 N83-3008-46 N09-6190-05 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 N19-2193-04 φ3x20...

  • Page 31: Parts List

    KDC-X679 PARTS LIST New parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No. werden nicht geliefert. Desti- Desti- Ref. No. Parts No. Description Ref. No.
  • Page 32 KDC-X679 PARTS LIST New parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. SUB-CIRCUIT UNIT (X16-2510-10) Teile ohne Parts No. werden nicht geliefert. Desti- Desti- Ref. No. Parts No.

  • Page 33: Cd Player Unit (X32-5560-00)

    KDC-X679 PARTS LIST New parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. CD PLAYER UNIT (X32-5560-00) Teile ohne Parts No. werden nicht geliefert. Desti- Desti- Ref. No. Parts No.
  • Page 34 KDC-X679 PARTS LIST New parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. CD PLAYER UNIT (X32-5560-00) Teile ohne Parts No. werden nicht geliefert. Desti- Desti- Ref. No. Parts No.
  • Page 35 KDC-X679 PARTS LIST New parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. ELECTRIC UNIT (X34-3000-10) Teile ohne Parts No. werden nicht geliefert. Desti- Desti- Ref. No. Parts No.
  • Page 36 KDC-X679 PARTS LIST New parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. ELECTRIC UNIT (X34-3000-10) Teile ohne Parts No. werden nicht geliefert. Desti- Desti- Ref. No. Parts No.
  • Page 37 KDC-X679 PARTS LIST New parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. ELECTRIC UNIT (X34-3000-10) Teile ohne Parts No. werden nicht geliefert. Desti- Desti- Ref. No. Parts No.
  • Page 38 KDC-X679 PARTS LIST New parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. CD MECHANISM ASSY (X92-4910-00) Teile ohne Parts No. werden nicht geliefert. Desti- Desti- Ref. No. Parts No.
  • Page 39 KDC-X679 PARTS LIST CAPACITORS 2 2 0 • Capacitor value CC45 Color* 010 = 1pF 0 = 22pF 1 = Type ... ceramic, electrolytic, etc. 4 = Voltage rating 100 = 10pF 2 = Shape ... round, square, etc. 5 = Value...

  • 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.

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