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Kenwood KDC-719 Sercie Manual

Cd receiver
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See also: Instruction Manual
CD RECEIVER
KDC-719/X559/Z737,Z638
SERVICE MANUAL
•This service manual does not include information on the CD mechanism assembly (exploded view, parts list,
schematic diagram or mechanism operation description).
For such information, please refer to the CD mechanism assembly service manual (X92-4450-0X: B51-7889-00).
KDC-719
Panel assy
(A64-2646-11)
KDC-Z737
Panel assy
(A64-2648-11)
Plastic
Escutcheon
cabinet assy
(B07-3050-02)
(A02-2712-13)
: KDC-719/Z737,Z638
(B07-3057-02)
: KDC-X559
DC cord
(E30-6062-05)
: KDC-X559/Z737
Front glass
(B10-4209-01)
Front glass
(B10-4211-01)
Mounting
hardware assy
(J21-9823-03)
DC cord
DC cord
(E30-6106-05)
(E30-6063-05)
: KDC-719
: Z638
© 2002-3 PRINTED IN JAPAN
B51-7928-00 ( N ) 3382
KDC-X559
Panel assy
(A64-2650-11)
Z638
Panel assy
(A64-2647-11)
Remote controller assy
(A70-2025-05)
: KDC-719/X559
Lever
Screw set
(D10-4674-04)x2
(N99-1656-05)
Antenna adaptor
(T90-0523/0534/0552-05): Z638
Front glass
(B10-4213-01)
Front glass
(B10-4210-01)
Remote controller assy
(A70-2026-05)
: KDC-Z737,Z638
Screw set
(N99-1723-05)
: except Z638

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Summary of Contents for Kenwood KDC-719

  • Page 1 Mounting Plastic Escutcheon Remote controller assy Remote controller assy hardware assy cabinet assy (B07-3050-02) (A70-2025-05) (A70-2026-05) (J21-9823-03) (A02-2712-13) : KDC-719/Z737,Z638 : KDC-719/X559 : KDC-Z737,Z638 (B07-3057-02) : KDC-X559 Lever Screw set Screw set DC cord DC cord DC cord (D10-4674-04)x2 (N99-1656-05)

  • Page 3: Components Description

    KDC-719/X559 /Z737,Z638 COMPONENTS DESCRIPTION SWITCH UNIT (X16-168x-xx) Ref.No. Component Name Application/Function Operation/Condition/Compatibility TAR5S33 FL AVR +3.3V Output TC74HC4050AFT Buffer For FL control lines, 5V→3.3V logic level shifting RS-171 Remote sensor IC BA3830F BPF IC BPF for the spectrum analyser indicator UPD703032GFA04 Panel MI-COM.
  • Page 4 KDC-719/X559 /Z737,Z638 COMPONENTS DESCRIPTION Ref.No. Component Name Application/Function Operation/Condition/Compatibility DTC124EUA or UN5212 FL/Illumination AVR SW When Q12' base goes Hi, Q13 is turned on, and FL/Illumination AVR is working. DTA124EUA or UN5112 DTA123JK or KRA105S EXT. AMP CON. SW When a base goes Lo, Q14 is turned on, and control pulse signal is outputted.

  • Page 5: Microcomputer's Terminal Description

    KDC-719/X559 /Z737,Z638 MICROCOMPUTER’S TERMINAL DESCRIPTION IC5 (SWITCH UNIT: X16-168x-xx) Pin No. Pin Name Description Processing Operation SC DATA Data input/output with the system MI-COM. MC CLK Clock input from the system MI-COM. Not used (N.C.) DATA 1 Data output 1 to the FL driver IC...
  • Page 6 KDC-719/X559 /Z737,Z638 MICROCOMPUTER’S TERMINAL DESCRIPTION Pin No. Pin Name Description Processing Operation SA RESET Reset output to the BPF IC Hi: Reset Not used (N.C.) AVDD A/D converter positive power supply connection terminal Connected to P5V lines. AVSS A/D converter ground connection terminal Connected to GND lines.
  • Page 7 KDC-719/X559 /Z737,Z638 MICROCOMPUTER’S TERMINAL DESCRIPTION Pin No. Pin Name Description Processing Operation Lo: ON, H-Z: OFF EJECT KEY R/G Eject key illumination red/green control output Lights on at the panel tilted during POWER ON mode. Communication request output to the panel MI-COM. Hi: Request...
  • Page 8 KDC-719/X559 /Z737,Z638 MICROCOMPUTER’S TERMINAL DESCRIPTION Pin No. Pin Name Description Processing Operation Capacitor connection terminal for regulator inside REGC microprocessor Oscillation: POWER ON mode, Oscillation stop: Main clock resonator connection terminal POWER OFF mode or momentary power down detected Main clock resonator connection terminal Ground connection terminal Connected to GND lines.
  • Page 9 KDC-719/X559 /Z737,Z638 MICROCOMPUTER’S TERMINAL DESCRIPTION Pin No. Pin Name Description Processing Operation M STOP Stop request to CD mechanism MI-COM. Lo: Stop mode, Hi: Operation mode M RST Reset output to CD mechanism MI-COM. Lo: Reset CH CON Changer control...

  • Page 10: Test Mode

    KDC-719/X559 /Z737,Z638 TEST MODE 1. How to enter the test mode • A short press of the Q key initiates the audio adjustment mode. While pressing and holding the Preset 1 and Preset 3 keys, re- • Pressing the * key on the remote initiates the audio adjustment set the unit.
  • Page 11 KDC-719/X559 /Z737,Z638 TEST MODE 4. Enter the code using the FM/AM/Track Up/Track Down keys. 11. Method of the span switching (K and M type only) • FM key: Number up While holding the Preset 1 and Preset 5 keys, reset the unit.
  • Page 12 PC BOARD (FOIL SIDE VIEW) (COMPONENT SIDE VIEW) X16-168X-XX (J74-1327-22) X16-168X-XX (J74-1327-22) PAN5V (VDD) SCDATA X16-168X-XX IC Q Address VDD2 10 6D FL+B FLGND X16-168X-XX IC Q Address Refer to the schematic diagram for the values of resistors and capacitors.
  • Page 13 PC BOARD (COMPONENT SIDE VIEW) X25-924X-XX (J74-1328-22) X89-253X-XX (J74-1332-12) C108 C107 C802 C803 C804 C102 C101 R187 R178 R177 R168 R188 R167 IC12 IC11 IC10 S-MTR C142 C105 C100 C106 O G I IC14 C118 C144 C111 C117 C120 C255 C252 C253 C254...
  • Page 14 PC BOARD (FOIL SIDE VIEW) X25-924X-XX (J74-1328-22) X89-253X-XX (J74-1332-12) C110 C134 C109 W113 C136 R169 R180 C139 C137 C135 C133 W112 C103 C131 C104 C858 R170 R179 R165 R166 R175 R176 R185 R186 R163 R164 R173 R174 R183 R184 C851 R161 R162 R171...
  • Page 15 2.2K 100K SW14V KDC-MP819 0-12 10u16 UPD703033GFA17 100K 100K DC CORD KDC-719 0-13 10u16 UPD703033GFA18 100K 100K 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 Z638 KDC-X559...
  • Page 16 R11 220 HFL2 ∗ EJECT 330P 2.4V KDC-X659 (K) ILL(R/G) S70-0873-05 KDC-MP819 (K) 4.1V 5.0V 0-00 C86 0.33u50 4.1V C143 KDC-719 (K) (YG) HFL1 A 9V R204 -9.3V 10u16 5.0V KDC-X559 (K) R168 R170 SW5V OSEL SW5V C60 2.2u50 X838 (E) 4.1V...
  • Page 17 RELV RSTC • DC voltages are as measured with a high impedance voltmeter. Values C8 10 2.5V BISC 5.0V may vary slightly due to variations between individual instruments or/and units. X838/KRC-Z965 (2/2) KDC-X659/MP819/Z838 (2/2) Z638/KDC-719/X559/Z737 (2/2) KDC-719/X559/Z737,Z638...

  • Page 18: Exploded View

    KDC-719/X559 /Z737,Z638 EXPLODED VIEW φ2x3.5 N09-6006-05 M2.6x5 N09-6053-05 WASHER N19-2168-05 RETAINING RING N24-3020-46 M2x3 N30-2003-46 M3x6(BLK) N30-3006-45 DME1 M3x10 N30-3010-46 φ2x6 N80-2006-46 φ2x8(BLK) N80-2008-45 φ3x5 N83-3005-46 φ2.6x6 N84-2606-46 (X25-) (X25-) φ3x8 N80-3008-46 (X16-168X-XX) Depends on the model. Refer to the parts list.

  • Page 19: Parts List

    SWITCH UNIT (X16-168x-xx) E30-6063-05 DC CORD E39-0447-05 FLAT CABLE (24P) CK73FB1A105K CHIP C 1.0UF CK73GB1H103K CHIP C 0.010UF F29-0049-05 INSULATING COVER CK73GB1C104K CHIP C 0.10UF K2 : KDC-719 K4 : KDC-X559 M2 : KDC-Z737 E1 : Z638 Indicates safety critical components.
  • Page 20 J 1/10W E1M2 CE04DW1A221M ELECTRO 220UF 10WV R92-1252-05 CHIP R 0 OHM J 1/16W CK73FB1C224K CHIP C 0.22UF CK73GB1H103K CHIP C 0.010UF S70-0863-05 TACT SWITCH K2 : KDC-719 K4 : KDC-X559 M2 : KDC-Z737 E1 : Z638 Indicates safety critical components.
  • Page 21 16WV K2E1M2 E41-0174-05 PIN ASSY (10P) C93,94 CE04NW1C220M ELECTRO 22UF 16WV E40-3299-05 PIN ASSY (2P) C95,96 CE04NW1C100M ELECTRO 10UF 16WV E40-3266-05 PIN ASSY (8P) K2 : KDC-719 K4 : KDC-X559 M2 : KDC-Z737 E1 : Z638 Indicates safety critical components.
  • Page 22 R149 RK73FB2B243J CHIP R J 1/8W RK73GB2A473J CHIP R J 1/10W R150 RK73GB2A472J CHIP R 4.7K J 1/10W R151 RK73GB2A103J CHIP R J 1/10W K2 : KDC-719 K4 : KDC-X559 M2 : KDC-Z737 E1 : Z638 Indicates safety critical components.
  • Page 23 RD6.8M(B2) ZENER DIODE R384 RK73GB2A222J CHIP R 2.2K J 1/10W D27,28 MA8068-M ZENER DIODE R389 RK73GB2A102J CHIP R 1.0K J 1/10W MA8062-L ZENER DIODE K2 : KDC-719 K4 : KDC-X559 M2 : KDC-Z737 E1 : Z638 Indicates safety critical components.
  • Page 24 ELECTRIC CIRCUIT MODULE DTA124EUA DIGITAL TRANSISTOR UN5112 DIGITAL TRANSISTOR X86-3530-11 TUNER UNIT K2K4M2 DTA123JK DIGITAL TRANSISTOR K4E1M2 X86-3532-70 TUNER UNIT KRA105S DIGITAL TRANSISTOR K4E1M2 K2 : KDC-719 K4 : KDC-X559 M2 : KDC-Z737 E1 : Z638 Indicates safety critical components.
  • Page 25 RK73EB2E471J CHIP R J 1/4W RK73EB2E221J CHIP R J 1/4W E1M2 RK73EB2E221J CHIP R J 1/4W S70-0856-05 TACT SWITCH E1M2 S70-0873-05 TACT SWITCH K2K4 K2 : KDC-719 K4 : KDC-X559 M2 : KDC-Z737 E1 : Z638 Indicates safety critical components.

  • Page 26: Specifications

    KDC-719/X559 /Z737,Z638 SPECIFICATIONS KDC-Z737 (M) Z638 (E) Frequency Range (Frequency step) 87.5MHz - 108.0MHz (50kHz) 87.5MHz-108.0MHz (50kHz) 87.9MHz - 107.9MHz (200kHz) Channel Space Selection 50k/200kHz Usable Sensitivity (S/N 26dB) 0.7µV/75Ω Usable Sensitivity (S/N 30dB) 9.3dBf (0.8µV/75Ω) Quieting Sensitivity (S/N 46dB) 1.6µV/75Ω...
  • Page 27 KENWOOD ELECTRONICS GULF FZE KENWOOD ELECTRONICS UK LIMITED P.O. Box 61318, Jebel Ali, Dubai, U.A.E. Kenwood House, Dwight Road, Watford, Herts, WD1 8EB, United Kingdom KENWOOD ELECTRONICS (THAILAND) CO., LTD. KENWOOD ELECTRONICS DEUTSCHLAND GMBH 2019 New Pechburi Road, Bangkapi, Huaykwang, Bangkok, 10320 Thailand Rembrücker-Str.

This manual is also suitable for:

Kdc-z638Kdc-z737Kdc-x559

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