Kenwood KDC-5019 Service Manual

Kenwood KDC-5019 Service Manual

Cd receiver
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CD RECEIVER
KDC-5019/519/8020
KDC-7021/7021Y/B7021
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 (X92-4030-0X, X92-4440-0X
: B51-7867-00).
Front glass
KDC-5019
(B10-4158-01)
Front glass
KDC-8020
(B10-4160-01)
Front glass
KDC-B7021
(B10-4163-01)
Plastic
Remote
cabinet assy
controller assy
(A02-1497-13)
(A70-2025-05)
DC cord
DC cord
(E30-4940-05)
(E30-4939-05)
: KDC-5019/519
: KDC-8020
Panel assy
KDC-519
(A64-2579-02)
Panel assy
KDC-7021/Y
(A64-2581-02)
KDC-5019/519/8020 only
Panel assy
(A64-2584-02)
Escutcheon
(B07-3010-02)
Mounting
Torsion
hardware assy
coil spring
(J21-9716-03)
(G01-2924-04)
DC cord
(E30-4942-05)
: KDC-7021Y
(E30-4956-05)
: KDC-7021/B7021
©
2001-11 PRINTED IN JAPAN
B51-7868-00 (S) 3420
Front glass
(B10-4157-01)
Front glass
(B10-4162-01)
Bracket (L)
(J19-5051-03)
Bracket (R)
(J19-5052-03)
KDC-7021/7021Y/B7021 only
Screw set
(N99-1704-05)
Remote controller assy
(A70-0886-15)
Antenna adaptor
(T90-0523/0534-05)
Lever
(D10-4562-04)x2
(D10-4621-04)x2: KDC-7021/B7021
Panel assy
(A64-2578-02)
Panel assy
(A64-2583-02)
Screw set
(N99-1722-05)

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Table of Contents
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Summary of Contents for Kenwood KDC-5019

  • Page 1 KDC-519 (A64-2579-02) (B10-4158-01) (B10-4157-01) (A64-2578-02) Front glass Front glass Panel assy Panel assy KDC-8020 KDC-7021/Y (B10-4160-01) (B10-4162-01) (A64-2581-02) (A64-2583-02) KDC-5019/519/8020 only Front glass Panel assy KDC-B7021 (B10-4163-01) (A64-2584-02) Bracket (L) Escutcheon Screw set (J19-5051-03) (B07-3010-02) (N99-1722-05) Bracket (R) (J19-5052-03) Mounting...
  • Page 2 http://getMANUAL.com A1,Q53 SW5V PLL+B Q43,44 FM+B 470mV (K,M) TYPE 251mV (E,Z) TYPE Q45,46 230mV AM+B Q37-40 AUDIO OUT PRE OUT MUTE OUTPUT VOLTAGE E-VOL (K,M) TYPE (E,Z) TYPE Q32,33,35 3600mV 3600mV S-METER MUTE 1800mV 1372mV (E,Z) TYPE DRIVER 600mV 855mV IFC OUT PLL DATA SW5V...
  • Page 3: Component Description

    KDC-5019/519/7021/7021Y/8020/B7021 COMPONENT DESCRIPTION SWITCH UNIT(X16-154X-XX, X16-1892-7X) Ref.No. Component Name Application/Function Operation/Condition/Compatibility LC75808W LCD driver with key matrix RS-171 Remote sensor IC DTA114EUA or KRA302 Key permission SW For the key scanning start and the key detection SW 2SC4081 Red LED SW When a base goes Hi, RED LEDs are turned on.
  • Page 4 KDC-5019/519/7021/7021Y/8020/B7021 Ref.No. Component Name Application/Function Operation/Condition/Compatibility DTC143TUA or KRC410 Audio mute SW (Front L) When Q37's base goes Hi, Pre-output is muted. DTC143TUA or KRC410 Audio mute SW (Front R) When Q38's base goes Hi, Pre-output is muted. DTC143TUA or KRC410 Audio mute SW (Rear L) When Q39's base goes Hi, Pre-output is muted.
  • Page 5: Microcomputer's Terminal Description

    KDC-5019/519/7021/7021Y/8020/B7021 MICROCOMPUTER'S TERMINAL DESCRIPTION IC1(ELECTRIC UNIT : X25-939X-XX, X25-8762-7X) Pin No. Pin Name Description Processing Operation AM+B AM+B control Hi: During AM reception Hi: During FM reception, Hi: During FM reception FM+B FM+B control if with RDS, RDBS Hi: During FM reception, Lo: During FM seek or...
  • Page 6 KDC-5019/519/7021/7021Y/8020/B7021 MICROCOMPUTER'S TERMINAL DESCRIPTION Pin No. Pin Name Description Processing Operation CH-RST Reset output to changers : Reset CH-MUTE Mute request from changers Hi: Mute request CH-CON Changer control Lo: Standby mode, Hi: Operation mode ILL-ON Illumination AVR on/off control output...
  • Page 7: Test Mode

    KDC-5019/519/7021/7021Y/8020/B7021 KDC-5019/519/7021/7021Y/8020/B7021 TEST MODE TEST MODE / ATTENTION 1. How to enter the test mode • HPF is adjusted in 2 steps of Through/220Hz with the 4.When " TRANSMIT2 " is displayed, press and hold the Security-related information While holding the FM and Preset 6 keys, reset the unit.
  • Page 8: Pc Board (Component Side View)

    PC BOARD (Component Side View) ELECTRIC UNIT SWITCH UNIT X16-154X-XX (J74-1306-02) ELECTRIC UNIT SWITCH UNIT X25-939X-XX (J74-1398-02) X16-1892-7X (J74-1306-02) (X25-939X-XX/8672-7X) X25-8762-7X (J74-1408-02) (X16-154X-XX/1892-7X) RESET R231 C149 R230 C142 C143 IFCOUT 20.0M R100 32.768K C200 R102 R216 R214 R215 C134 W100 R210 C113 R212...
  • Page 9 PC BOARD (Foil Side View) SWITCH UNIT ELECTRIC UNIT X16-154X-XX (J74-1306-02) SWITCH UNIT ELECTRIC UNIT X25-939X-XX (J74-1398-02) X16-1892-7X (J74-1306-02) (X16-154X-XX/1892-7X) X25-8762-7X (J74-1408-02) (X25-939X-XX/8762-7X) IC15 C161 ILL+B R136 R237 IC16 ILLUM G R137 R239 R130 L-DATAS CLK L- R134 L-CE R135 L-DATAL R133 R131...
  • Page 10 UNIT No. C149 GND LINE returned to the customer. NAME 217,218 80,81,86 B LINE KDC-519 X25-9390-11 X86-3240-11 KDC-5019 X25-9390-12 X86-3240-11 KDC-8020 X25-9390-21 X86-3240-11 DC voltages are as measured with a high impedance voltmeter. Values may KDC-7021 X25-9392-72/8762-73 X86-3242-70/3342-71 KDC-7021Y X25-9392-73 X86-3242-70 vary slightly due to variations between individual instruments or/and units.
  • Page 11 2.5V 5.0V IC16 C146 C141 2.5V MODEL UNIT 330P NAME OSCI 47u6.3 S.GND 5.0V BU5V KDC-519 5.0v KDC-5019 ILL +B ILL +B 13 OSEL SW5V KDC-8020 0-10 ILLMG ILLMG EXTRES X16- KDC-7021Y L CLK L CLK 5.0V KDC-7021 2-71 L CE...
  • Page 12 UNIT No. UNIT No. Q1,6 : DTA114EUA or KRA302 5.0V KDC-519 (K) Q3-5 : 2SC4081 X16-1540-11 MA3091-M B38-1086-05 KDC-7021Y (E) DTC143ZK KDC-5019 (K) X16-1540-12 MA3082-M B38-1088-05 KDC-8020 (M) D1-3 B30-1571-05 X16-1542-72 X16-1892-71 MA3091-M B38-1086-05 KDC-7021 (E) R7 22K D5-18,20-22 : B30-1605-05...
  • Page 13: Exploded View

    KDC-5019/519/7021/7021Y/8020/B7021 EXPLODED VIEW M2x2 (BLK) N09-4400-05 M2x2.5 N09-4401-05 φ2x4 N09-4427-05 PFPC1 M2x2.5 N09-4448-05 M2x1.8 (BLK) N09-4449-05 FLAT WASHER N19-2154-04 DME1 FLAT WASHER N19-2155-04 FLAT WASHER N19-2156-04 RETAINING RING N29-0523-05 RETAINING RING N29-0522-05 M2x2.5 N38-2025-46 φ2x5 N80-2005-46 φ2x8 (BLK) N80-2008-45 φ3x5 N83-3005-46 φ2x4 (BLK)
  • Page 14: Parts List

    KNOB (SRC) 3A ∗ K25-1404-03 D13-2141-14 GEAR ASSY KNOB (VOL) 3A ∗ K25-1405-02 D13-2165-03 GEAR ASSY KNOB (PRESET) 3A ∗ K25-1406-03 KNOB (FM,AM) D14-0754-04 ROLLER K: KDC-519 K1: KDC-5019 M1: KDC-8020 indicates safety critical components. E2: KDC-7021Y Z1: KDC-7021 Z2: KDC-B7021...
  • Page 15 CONDUCTIVE RUBBER CK73GB1H103K CHIP C 0.010UF K E59-0835-05 RECTANGULAR PLUG (15P) CC73GCH1H220J CHIP C 22PF CC73GCH1H270J CHIP C 27PF R90-1016-05 MULTI-COMP CK73GB0J105K CHIP C 1.0UF K: KDC-519 K1: KDC-5019 M1: KDC-8020 indicates safety critical components. E2: KDC-7021Y Z1: KDC-7021 Z2: KDC-B7021...
  • Page 16 CHIP R 1.0K 1/10W L40-4795-91 SMALL FIXED INDUCTOR (4.7UH,J) RK73GB2A104J CHIP R 100K 1/10W K,K1,Z2 L92-0075-05 CHIP FERRITE RK73GB2A104J CHIP R 100K 1/10W M1 K: KDC-519 K1: KDC-5019 M1: KDC-8020 indicates safety critical components. E2: KDC-7021Y Z1: KDC-7021 Z2: KDC-B7021...
  • Page 17 R152 RK73GB2A472J CHIP R 4.7K 1/10W D22-24 HZS6C1 ZENER DIODE R155,156 RK73EB2E100J CHIP R 1/4W D22-24 MA4062-L ZENER DIODE R157 RK73EB2E4R7J CHIP R 1/4W K: KDC-519 K1: KDC-5019 M1: KDC-8020 indicates safety critical components. E2: KDC-7021Y Z1: KDC-7021 Z2: KDC-B7021...
  • Page 18 DIGITAL TRANSISTOR M1,E2,Z1 KRA105S DIGITAL TRANSISTOR DTC144EUA DIGITAL TRANSISTOR UN5213 DIGITAL TRANSISTOR DTC114YUA DIGITAL TRANSISTOR K,K1,M1 UN5214 DIGITAL TRANSISTOR K,K1,M1 Q25,26 2SB1277 (Q,R) TRANSISTOR K,K1,M1 K: KDC-519 K1: KDC-5019 M1: KDC-8020 indicates safety critical components. E2: KDC-7021Y Z1: KDC-7021 Z2: KDC-B7021...
  • Page 19: Specifications

    KDC-5019/519/7021/7021Y/8020/B7021 SPECIFICATIONS KDC-5019/519 KDC-8020 FM Section FM Section Frequency Range ......87.9MHz - 107.9MHz Frequency Range ......87.9MHz - 107.9MHz Frequency Step ......200kHz Frequency Step ......200kHz Channel Space Selection ..... 50kHz/200kHz Frequency Range ......87.5MHz - 108.0MHz Usable Sensitivity (S/N:30dB) ..9.3dBf (0.8µV/75Ω) Frequency Step ......
  • Page 20 #4.01 Level 4, Wisma Academy Lot 4A, Jalan 19/1, Leuvensesteenweg 248 J, 1800 Vilvoorde, Belgium 46300 Petaling Jaya, Selangor Darul Ehsan, Malaysia KENWOOD follows a policy of continuous advancements in development. For this reason specifications may be changed without notice.

This manual is also suitable for:

Kdc-519Kdc-7021Kdc-7021yKdc-b7021Kdc-8020

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