Kenwood KDC-3023R Service Manual
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Kenwood KDC-3023R Service Manual

Kenwood KDC-3023R Service Manual

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CD RECEIVER
KDC-3023R
QQ
3 7 63 1515 0
KDC-4024/V/Y/YV
SERVICE MANUAL
CD mechanism operation description is not in this sarvice manual.
Please, refer to sarvice manual X92-4030-0x (B51-7867-00).
Panel assy
(A64-2872-02): KDC-3023R
(A64-2875-02): KDC-4024/V/Y/YV
TE
L 13942296513
DC cord
(E30-4790-05)
Lever
(D10-4589-04)
x2
www
Depends on model. Refer to the parts list
.
KDC-XXXX
COMPACT
DIGITAL AUDIO
LOUD
SCRL
SCAN
OFF
Antenna adaptor
(T90-0523-05)
x
ao
u163
y
i
2 9
8
Front glass
(B10-4341-01): KDC-3023R
(B10-4344-01): KDC-4024/V/Y/YV
CD MD-Changer Control
RDM
REP
M. RDM
Q Q
3
6 7
1 3
1 5
Mounting hardware assy
(J21-9716-03)
Screw set
(N99-1719-05)
co
.
9 4
2 8
© 2002-11 PRINTED IN JAPAN
B53-0001-00 ( N ) 2139
CD mechanism extension cord : WO5-0618-00
Escutcheon
(B07-3001-02)
PTY
CLK
MENU
TI
VOL. ADJ
AUD
0 5
8
2 9
9 4
Plastic cabinet assy
(A02-1486-13)
m
9 9
2 8
9 9
Screw set
(N99-1610-15)

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Summary of Contents for Kenwood KDC-3023R

  • Page 1 B53-0001-00 ( N ) 2139 CD mechanism operation description is not in this sarvice manual. CD mechanism extension cord : WO5-0618-00 Please, refer to sarvice manual X92-4030-0x (B51-7867-00). Panel assy Front glass (A64-2872-02): KDC-3023R (B10-4341-01): KDC-3023R Escutcheon (B07-3001-02) (A64-2875-02): KDC-4024/V/Y/YV (B10-4344-01): KDC-4024/V/Y/YV...
  • Page 2 3 7 6 3 1 5 1 5 0 FM(J,K) : 1800mV FM+B FM(E) : 1372mV IC10 Q502 Q223,224 AM(J,K) : 600mV CD : 3600mV AM(E) : 855mV CH : 3600mV FM AGC FM AGC OUT MUTE AM+B Q501 AM AGC POWER IC AM AGC OUT TUNER,MPX &...

  • Page 3: Components Description

    KDC-3023R,4024/V/Y/YV COMPONENTS DESCRIPTION 3 7 63 1515 0 SWITCH UNIT (X16-1472-7x) Ref.No. Application/Functions Operation/Condition/Compatibility LCD driver & key matrix Remote Sencer Key scan start When Q1 base goes Lo, key scan start. When Q2 base goes Hi and Q3 base goes Lo, key illumination is Green.

  • Page 4: Microcomputer's Terminal Description

    KDC-3023R,4024/V/Y/YV MICROCOMPUTER'S TERMINAL DESCRIPTION 3 7 63 1515 0 SYSTEM MICROCOMPUTER uPD780058GC502 (X25 : IC1) Pin No. Name Description Processing Operation TDF DET Panel detection H:Panel detached L:Panel attached H:Eject is completed 8EJE SW Except 8cm CD model:always output L...
  • Page 5 KDC-3023R,4024/V/Y/YV MICROCOMPUTER'S TERMINAL DESCRIPTION 3 7 63 1515 0 Pin No. Name Description Processing Operation B.U-DET Back up detection terminal H:power down L:B.U. on ACC-DET ACC detection terminal H:ACC OFF L:ACC ON Power supply IC SW1 control 0 BA4911 SW1...
  • Page 6 KDC-3023R,4024/V/Y/YV MICROCOMPUTER'S TERMINAL DESCRIPTION 3 7 63 1515 0 MECHANISM MICROCOMPUTER MN6627771KP (X32 : IC2) Pin No. Name Description Processing Operation Traverse driver output (PWM output) Spindle motor drive output (PWM output) Spindle motor ON output L:ON H:OFF (default )
  • Page 7 KDC-3023R,4024/V/Y/YV MICROCOMPUTER'S TERMINAL DESCRIPTION 3 7 63 1515 0 Pin No. Name Description Processing Operation Main clock output terminal DVSS2 Ground lines for digital circuit XSUB1 When external DAC,external clock input terminal XSUB2 TEST1 Test port 1 Normal operation is H fixed...

  • Page 8: Ic10 (Tda7513) -The Tuner Adjustment Method

    KDC-3023R,4024/V/Y/YV ADJUSTMENT 3 7 63 1515 0 1-3. Adjustment of FM_ANT&RF Coil 1. IC10 (TDA7513) -The Tuner adjustment method Voltage Check Point : S_METER-Check Land (PWB • When IC10 and its circumference are fixed, according to the Side_B, around W572) following order, it readjusts if needed.

  • Page 9: Ic10 (Tda7513) Replacement-Parts Vs Adjustment Item Table

    KDC-3023R,4024/V/Y/YV ADJUSTMENT 3 7 63 1515 0 2.IC10 (TDA7513) Replacement-Parts vs Adjustment Item Table • When the parts in the following tables are exchanged, please readjust according to a table. • When other parts are exchanged, please perform only a check of operation. There is no necessity for readjustment.

  • Page 10: Pc Board (Component Side View)

    PC BOARD (COMPONENT SIDE VIEW) 3 7 63 1515 0 X32-5380-00 (J74-1485-12) L 13942296513 X32-5380-00 Ref. No address u163 Refer to the schematic diagram for the values of resistors and capacitors.
  • Page 11 PC BOARD (FOIL SIDE VIEW) 3 7 63 1515 0 X32-5380-00 (J74-1485-12) B/TE VREF VDET LDON A/TE TRCRS REFNV TRK IN TRK OUT D/ARF NRFDET FCS UP GCTL FCS DOWN VREF2 D.GND BU.5V D.OUT SLED IN 12EJE /EJECT SLED OUT DATA /CLK /LOAD...
  • Page 12 PC BOARD (FOIL SIDE VIEW) 3 7 63 1515 0 L 13942296513 X25-961x-xx u163 Ref. No address Ref. No address Ref. No address Ref. No address IC12 Q251 Q252 Q101 Q253 Q102 Q501 Q201 Q502 IC10 Q223 Q503 IC11 Q224 Refer to the schematic diagram for the values of resistors and capacitors.
  • Page 13 PC BOARD 3 7 63 1515 0 (COMPONENT SIDE VIEW) (FOIL SIDE VIEW) X16-1472-7x X16-1472-7x (J74-1287-22) (J74-1287-22) SW5V REMO DATAS L-CLK L-CE DATAL WL+B LRES IGND L 13942296513 u163 X16-1472-7x Ref. No address Refer to the schematic diagram for the values of resistors and capacitors.
  • Page 14 CD PLAYER UNIT (X32-5380-00) 3 7 63 1515 0 DTC143TUA UN5111 D.GND 2SA1036K C34 0.1 4.80V 2SA1362 C32 0.1 2SA1576A BU+5V 4.80V 2.40V R100 C100 8EJE(SW2) 2200P 2200P 1000P 12EJE/SDET(SW3) 4.7K 4.80V LOE/LIM(SW4) 2SC4081 PCK/NTLOCK/FCLK/STLD 2200P 2200P EFM/NFLOCK/CLDCK/STCK SENSE/RESY/FLAG/STOUT CLVS/VDET/CRC DEMPH/TRCRSO/TEXTCRC 6800P 6800P...
  • Page 15 3 7 63 1515 0 RFENV IOP+ IOP- R7 3.6K 3.3K C45 0.1 C44 1000P 1.25V 2.40V C43 2200P 1.70V IREF PLLF2 0.047 0.95pp PLLF R39 100K 2.50V 0.91pp 0.87pp RFSW 1000P 4.7K 2.45V DSLF AVSS2 4.80V DVSS1 DVDD1 VDET 0-4.8V 220K 0.015...
  • Page 16 J4 TOP VIEW ∗ DATA H CHCON D GND 3 7 63 1515 0 REAR REQ C DATA C A GND MUTE REQ H ∗ ∗ (X25-961x-xx) C227 C228 680P 680P D GND R227 R228 Q223 Q224 ∗ MUTE ∗ ∗...
  • Page 17 3 7 63 1515 0 E2P-ROM IC12 ∗ 3.3K Q251 5.0V 1/2W SURGE W158 DETECTOR ∗ D252 R258 MUTE 0.01 A. C. C 0.01 DETECTOR ∗ 5.0V B. U. ∗ DETECTOR MUTE LOGIC ∗ 100K 100K POWER AMPLIFIRE L101 4.7uH CF54 ∗...
  • Page 18 10u50 D504-506 ∗ R145 (X25-961X-XX) 2.2K UNIT C51,529, C227,228,404, MODEL C D E F C106 NAME 557,558,589 528,590,592 SERBOGND KDC-3023R (M) 0-21 1000P R101 D102 KDC-4024 (E) SERBO+B 2-70 1000P KDC-4024Y (E) MO SW ∗ Q101 KDC-4024V (E) LO/EJ 2-71...
  • Page 19 3 7 63 1515 0 SWITCH UNIT (X16-1472-7x) L 13942296513 KEY DETECT TP35 TP9 TP8 ESD-GND TP34 PANEL SW TP24 R13 47 5.0V SW5V TP33 R12 1K REMO TP27 R2 470 L-DATAS X14- TP28 R4 470 L-CLK TP29 R3 470 L-CE TP30 R5 1K...
  • Page 20 • DC voltages are as measured with a high impedance voltmeter. Values may vary slightly due to variations between individual instruments or/and units. : LC75883E : RS-171 (X16-1472-7X) : DTA114EUA MODEL NAME UNIT No. Q2,3 : 2SC4081 KDC-3023R (M) D1-13,20 : B30-1605-05 KDC-4024 (E) 2-70 B38-1083-05 D17,18 : B30-1564-05 or KDC-4024Y (E) B30-1642-05...

  • Page 21: Exploded View (Mechanism)

    KDC-3023R,4024/V/Y/YV EXPLODED VIEW (MECHANISM) 3 7 63 1515 0 DPU1 L 13942296513 DFPC1 (X32) φ : N09-4460-05 M1.7x8.5 : N09-4472-05 M1.7x2.5 : N09-6004-05 φ : N09-6006-05 2x3.5 u163 : N09-6007-05 M2x2 φ : N09-6051-05 2x6(BLK) : N19-2163-04 1.6 WASHER : N39-2020-46...

  • Page 22: Exploded View (Unit)

    KDC-3023R,4024/V/Y/YV EXPLODED VIEW (UNIT) 3 7 63 1515 0 M3x8 : N30-3008-46 DME1 φ 2x6 : N80-2006-46 φ 2x8 (BLK) : N80-2008-45 φ 3x5 : N83-3005-46 φ 3x10 : N80-3010-46 φ 3x20 : N83-3020-46 φ 2.6x6 : N86-2606-46 φ 1.5 RING...

  • Page 23: Parts List

    CHIP R 2.2K J 1/10W K25-1396-03 KNOB (PRE1-6,ATT,RESET) MA3062WA ZENER DIODE K25-1397-03 KNOB (AUTO,CLK,FM,AM) D23 , 24 MA8062 ZENER DIODE LC75883E MOS-IC E : KDC-4024 Z : KDC-4024Y M2 : KDC-3023R indicates safety critical components. E1 : KDC-4024V Z1 : KDC-4024YV...
  • Page 24 L72-0716-05 CERAMIC FILTER C521 CK73GB1C104K CHIP C 0.10UF CF54 L72-0743-05 CERAMIC FILTER C522 CC73GCH1H330J CHIP C 33PF L33-1170-05 CHOKE COIL ASSY E : KDC-4024 Z : KDC-4024Y M2 : KDC-3023R indicates safety critical components. E1 : KDC-4024V Z1 : KDC-4024YV...
  • Page 25 J 1/10W R503 RK73EB2E222J CHIP R 2.2K J 1/4W R118 RK73GB2A103J CHIP R J 1/10W R505 RK73GB2A102J CHIP R 1.0K J 1/10W E : KDC-4024 Z : KDC-4024Y M2 : KDC-3023R indicates safety critical components. E1 : KDC-4024V Z1 : KDC-4024YV...
  • Page 26 D1F60 DIODE PTH9C42BE471Q POSITIVE RESISTOR AM01Z DIODE CD PLAYER UNIT (X32-5380-00) MA4068(N)-M ZENER DIODE MA4047-M ZENER DIODE C92-0566-05 CHIP-TAN 10UF 6.3WV E : KDC-4024 Z : KDC-4024Y M2 : KDC-3023R indicates safety critical components. E1 : KDC-4024V Z1 : KDC-4024YV...
  • Page 27 LEVER ASSY RK73GB2A333J CHIP R J 1/10W D10-4581-13 RK73GB2A244J CHIP R 240K J 1/10W D10-4582-13 RK73GB2A914J CHIP R 910K J 1/10W D10-4583-03 E : KDC-4024 Z : KDC-4024Y M2 : KDC-3023R indicates safety critical components. E1 : KDC-4024V Z1 : KDC-4024YV...
  • Page 28 N09-6108-05 MACHINE SCREW (M2 3.5TYPE3) T42-1066-04 DC MOTOR ASSY (SP) T42-1067-04 DC MOTOR ASSY (LO) DPU1 X93-2010-00 OPTICAL PICKUP ASSY u163 E : KDC-4024 Z : KDC-4024Y M2 : KDC-3023R indicates safety critical components. E1 : KDC-4024V Z1 : KDC-4024YV...
  • Page 29 KDC-3023R,4024/V/Y/YV PARTS LIST 3 7 63 1515 0 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.

  • Page 30: Specifications

    157 (mm) 6-3/16 (in) Weight 3.1lbs (1.4kg) 3.1lbs (1.4kg) KENWOOD follows a policy of continuous advancements in development. For this reason specifications may be changed without notice. KENWOOD CORPORATION 2967-3, Ishikawa-machi, Hachioji-shi, Tokyo 192-8525, Japan KENWOOD ELECTRONICS ITALIA S.p.A. KENWOOD USA CORPORATION Via G.

This manual is also suitable for:

Kdc-4024/v/y/yv

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