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Kenwood KDC-5021 Service Manual

Cd receiver
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CD RECEIVER
KDC-5021/5021V
QQ
3 7 63 1515 0
KDC-506

SERVICE MANUAL

Refer to the service manual "X92-4430-0x" (B51-7889-00) for MECHANISM information.
KDC-5021 (E)
KDC-506 (E)
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L 13942296513
The following reference numbers with accessory parts are the same reference numbers
used on EXPLODED VIEW and PARTS LIST.
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KDC-5021
KDC-506
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213
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u163
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KDC-5021V (E)
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1 3
1 5
200
276
278
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9 4
2 8
© 2002-2 PRINTED IN KOREA
B51-7906-00 (K) 1926
KDC-5021V
0 5
8
2 9
9 4
2 8
256
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9 9
9 9

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Summary of Contents for Kenwood KDC-5021

  • Page 1: Service Manual

    KDC-5021/5021V 3 7 63 1515 0 KDC-506 SERVICE MANUAL © 2002-2 PRINTED IN KOREA B51-7906-00 (K) 1926 Refer to the service manual "X92-4430-0x" (B51-7889-00) for MECHANISM information. KDC-5021 (E) KDC-5021V (E) KDC-5021 KDC-5021V KDC-506 (E) KDC-506 L 13942296513 The following reference numbers with accessory parts are the same reference numbers used on EXPLODED VIEW and PARTS LIST.
  • Page 2 Q901-903 EJECT ILL/DSI ILLUMI (SW AND LED) REMO ON REMO ON PANEL 5V PANEL 5V u 1 6 3 DIMMER PWM CONTROL PANEL 5V KDC-5021/5021V/506 BACKLIGHT LCD NEGA BACKLIGHT KDC-5020R/5021Y/YV LCD (NEGA) W-LED POSI W-ILL 5x7 TYPE 14SEG TYPE KDC-319/4019/5020...

  • Page 3: Component Description

    KDC-5021/5021V,506 3 7 63 1515 0 COMPONENT DESCRIPTION ELECTRIC UNIT (X25-922x-xx) REF. FUNCTION OPERATION SYSTEM u-COM System u-com. E-VOL/NC/MPX E-volume, Noise Chancellor, Multiplexer. MUTE 4 inputs, 3 NOR gates. POWER IC Power IC. SWITCHING OP AMP Switches operation amplifier. RDS DEMODULATOR Demodulates RDS.

  • Page 4: Switch Unit (X16-167X-Xx)

    KDC-5021/5021V,506 3 7 63 1515 0 COMPONENT DESCRIPTION SWITCH UNIT (X16-167x-xx) REF. FUNCTION OPERATION LCD DRIVER Drives LCD. REMOTE CONTROLLER Controls the unit. KEY SCAN START Turns on when the base level goes "L". IC2 POWER SUPPLY SW Turns on when the base level goes "L".

  • Page 5: Microcomputer's Terminal Description

    ILLUMI ON Illumination power control. "L" : Illumination turns off. IC2 TYPE 1 IC2 destination switch. "L" : Pure KENWOOD brand. "H" : Genuine. P-ON I/O SW 5V control. "L" : P-ON turns on. IC2 CLK Clock signal to IC2 or CD mechanism. - VSS 1 GND.
  • Page 6 KDC-5021/5021V,506 3 7 63 1515 0 MICROCOMPUTER'S TERMINAL DESCRIPTION (X25-) IC1 : u-COM PORT PORT NAME FUNCTION OPERATING CONDITION N/F SW Non-fader switch. "H" : Rear. "L" : Front. P MUTE Power IC mute. "L" : Power off, all off.

  • Page 7: Test Mode

    KDC-5021/5021V,506 3 7 63 1515 0 TEST MODE 1. How to enter the test mode • Bass, Middle and Treble are adjusted in 3 steps of Min While holding the Preset 1 and Preset 3 keys, reset the / Center / Max with the Track Up/Down keys.
  • Page 8 KDC-5021/5021V,506 3 7 63 1515 0 TEST MODE 3. When the message "Security" is displayed, press and hold the Track Up/Down key for 1 second to enter the security registration mode. 4. Enter the code using the FM/AM/Track Up/Track Down keys.

  • Page 9: Pc Board(Component Side View)

    ELECTRIC UNIT X25-921x-xx/X25-922x-xx PC BOARD(Component side view) Ref.No Q201 Q202 Q203 3 7 6 3 1 5 1 5 0 Address Ref.No Q204 Q205 Q206 Q401 Q402 Q503 Q505 Q701 Q703 Q704 Q705 Q706 Q708 Q905 SWITCH UNIT ELECTRIC UNIT X25-921x-xx (J74-1323-12) Address X16-163x-xx/167x-xx (J74-1315-02) X25-922x-xx (J74-1388-12)
  • Page 10 ELECTRIC UNIT X25-921x-xx/X25-922x-xx PC BOARD(Foil side view) Ref.No Q403 Q404 Q501 Q502 Q504 Q506 Q507 3 7 6 3 1 5 1 5 0 Address Ref.No Q508 Q510 Q702 Q707 Q901 Q902 Q903 Q906 Q907 SWITCH UNIT ELECTRIC UNIT X25-921x-xx(J74-1323-12) X16-163x-xx/167x-xx (J74-1315-02) Address X25-922x-xx(J74-1388-12)
  • Page 11 R615 100K R706 R709 R636 ILLUMINATION R616 1K LO/EJ SERVO +B AVR Q903 TYPE 2 PANEL Q902 Q708 TC74HC02AF R710 Q901 1.5K w w w u 1 6 3 P.CON BU5V BU5V (E30-4790-05) 7.5V 7.5V 7.5V KDC-5021,5021Y,506,5020R ILL+B ILL+B ILL+B...
  • Page 12 D910 D911 u 1 6 3 KDC-5021/5021V,506 (E/E,E) (1/2) KDC-5020R,5021Y/YV (M,E/E) (1/2) 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 18 17 16 15 14 13 12 11 10 9...
  • Page 13 ∗ D20-22 B30-1571-05 VOL- D20-22 GND LINE FLIP DET B LINE PAN 5V BACKLIGHT ∗ D5-19 KDC-5021/5021V,506 (E/E,E) (2/2) KEY ILLUMINATION IC2 POWER KDC-5020R,5020Y/YV (M,E/E) (2/2) SUPPLY SW KDC-319/4019,5020 (K/K,M) (2/2) DISP GND2 MODEL NAME UNIT No. D1-13 KDC-506 (E) 5.0V...

  • Page 14: Exploded View

    KDC-5021/5021V,506 3 7 63 1515 0 EXPLODED VIEW DME1 FLAT WASHER : N19-2106-04 (X25-) RETAINING RING : N24-3020-46 φ2x5 : N80-2005-46 φ2x8 (BLK) (X25-) : N80-2008-45 φ3x5 : N83-3005-46 φ2x5 : N84-2005-46 (X25-) φ2.6x6 (BLK) : N84-2606-45 φ2.6x6 : N84-2606-46 φ3x8...

  • Page 15: Parts List

    PROTECTION BAG (180X300X0.03) RK73GB2A563J CHIP R 1/10W H25-1111-04 PROTECTION BAG (280X450X0.03) RK73GB2A392J CHIP R 3.9K 1/10W ✽ H54-2366-03 ITEM CARTON CASE (KDC-5021) RK73GB2A473J CHIP R 1/10W ✽ H54-2367-03 ITEM CARTON CASE (KDC-5021V) R13 -15 RK73FB2B331J CHIP R 1/8W ✽ H54-2368-03...

  • Page 16: Electric Unit (X25-922X-Xx)

    6.3WV R217-220 RK73FB2B361J CHIP R 1/8W C602 CK73GB0J105K CHIP C 1.0UF R223-226 RK73FB2B223J CHIP R 1/8W E3 : KDC-5021 E : Europe K : North America M : Other Areas E4 : KDC-5021V indicates safety critical components. E5 : KDC-506...
  • Page 17 RK73GB2A102J CHIP R 1.0K 1/10W DTC124EUA DIGITAL TRANSISTOR R652 RK73GB2A104J CHIP R 100K 1/10W 2SB1277(Q,R) TRANSISTOR E3 : KDC-5021 E : Europe K : North America M : Other Areas E4 : KDC-5021V indicates safety critical components. E5 : KDC-506...

  • Page 18: Daughter Unit (X89-2522-70)

    DAUGHTER UNIT (X89-2522-70) ✽ E41-0169-05 SOCKET FOR PIN ASSY E58-0865-05 RECTANGULAR RECEPTACLE S70-0877-05 TACT SWITCH u163 E3 : KDC-5021 E : Europe K : North America M : Other Areas E4 : KDC-5021V indicates safety critical components. E5 : KDC-506...

  • Page 19: Specifications

    53mm (Depth) 155mm Weight 1.25Kg KENWOOD follows a policy of continuous advancements in development. For this reason specifications may be changed without notice. KENWOOD CORPORATION 14-6, Dogenzaka 1-chome, Shibuya-ku, Tokyo, 150-8501 Japan KENWOOD SERVICE CORPORATION KENWOOD ELECTRONICS ITALIA S.p.A. P.O. Box 22745, 2201 East Dominguez Street, Via G.

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Kdc-506Kdc-5021 v

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