Kenwood KDC-M7024 Service Manual
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Kenwood KDC-M7024 Service Manual

Kenwood KDC-M7024 Service Manual

Cd receiver
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See also: Instruction Manual
CD RECEIVER
KDC-M7024
KDC-MP822

SERVICE MANUAL

CD mechanism operation description is
not in this service manual.
Please, refer to service manual X92-
4030-0x (B51-7867-00).
Escutcheon
Mounting hardware assy
(B07-3078-01)
(J21-9823-03)
Remote controller assy
Lever
(RC-505)
(D10-4674-04) x 2
(A70-2040-05)
: KDC-MP822
Panel assy
(A64-2978-01): KDC-MP822
Panel assy
(A64-2986-01): KDC-M7024
Plastic cabinet assy
(A02-2731-03)
Size AA battery
Screw set
(Not supplied)
(N99-1723-05)
: KDC-MP822
© 2003-2 PRINTED IN JAPAN
B53-0035-00 ( N ) 3114
CD mechanism extension cord : W05-0935-00
50
W
4
Escutcheon
COMPACT
(B07-3078-01)
DIGITAL AUDIO
Panel assy
(A64-2995-02):
KDC-MP822
50
W
4
Escutcheon
COMPACT
(B07-3078-01)
DIGITAL AUDIO
Panel assy
(A64-3003-02):
KDC-M7024
DC cord (ISO)
(E30-4942-05)
: KDC-M7024
Screw set
(N99-1734-05)
DC cord
(E30-6106-05)
: KDC-MP822
Antenna adaptor
(T90-0552-05)
: KDC-M7024

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Summary of Contents for Kenwood KDC-M7024

  • Page 1: Service Manual

    Please, refer to service manual X92- Panel assy 4030-0x (B51-7867-00). (A64-2978-01): KDC-MP822 Escutcheon COMPACT (B07-3078-01) DIGITAL AUDIO Panel assy (A64-2995-02): KDC-MP822 Panel assy (A64-2986-01): KDC-M7024 Escutcheon COMPACT (B07-3078-01) DIGITAL AUDIO Panel assy (A64-3003-02): KDC-M7024 Escutcheon Mounting hardware assy Plastic cabinet assy DC cord (ISO)

  • Page 2: How To The Panel Mechanism Assembly

    KDC-M7024/MP822 HOW TO THE PANEL MECHANISM ASSEMBLY 1. Fixed the position of operation side (Fixed the horizontal position when the panel opened) Rotary to the q The mounting hardware (281) of operation side is rota- stop position tion (A) into the stop position with close side.

  • Page 3: Block Diagram

    KDC-M7024/MP822 BLOCK DIAGRAM (X25-966) Q59,60 PRE OUT TUNER PRE MUTE (NF) AUDIO OUT Q57,58 Q102,103 E-VOL PRE OUT & AM+B PRE MUTE (REAR) Q55,56 Q104 PRE OUT QUAL PRE MUTE (FRONT) BUFFER S-METER BUFFER SW5V SW5V SP OUT (FL) IC12...

  • Page 4: Components Description

    KDC-M7024/MP822 COMPONENTS DESCRIPTION SUB-CIRCUIT UNIT (X16-2080-10) Ref. No. Application/Function Operation/Condition/Compatibility E2PROM For security SUB-CIRCUIT UNIT (X16-2140-10) Ref. No. Application/Function Operation/Condition/Compatibility LCD driver KEY Input LCD driver Remote control sensor KEY scan start SW ON when the base goes “L”. Q5, D26...

  • Page 5: Microcomputer's Terminal Description

    KDC-M7024/MP822 COMPONENTS DESCRIPTION Ref. No. Application/Function Operation/Condition/Compatibility Noise buffer E-vol mute SW When a base gose Hi, mute SW is turned on. Q55~60 Pre-out mute SW When a base gose Hi, Pre-out is muted. E2P 5V SW When Q63’base gose Lo, E2P 5V is out.
  • Page 6 KDC-M7024/MP822 MICROCOMPUTER’S TERMINAL DESCRIPTION Pin No. Pin Name Module Purpose / Description Truth table Processing Operation Backup : L, BU_DET Extra Momentary power dropped detection. No backup, momentary power dropped : H ACC_DET Extra ACC detection. With ACC : L, Without ACC : H...
  • Page 7 KDC-M7024/MP822 MICROCOMPUTER’S TERMINAL DESCRIPTION Pin No. Pin Name Module Purpose / Description Truth table Processing Operation FPM MOTOR B P-mecha FPM mechanism (Slider) control. FPM MOTOR F P-mecha FPM mechanism (Slider) control. FPM MOTOR O O P-mecha FPM mechanism (Angle) control.
  • Page 8 KDC-M7024/MP822 MICROCOMPUTER’S TERMINAL DESCRIPTION Truth table w Destination port MODEL Destination DISPLAY TYPE2 TYPE1 TYPE0 KDC-X969 KDC-MP922 FX-9000 KDC-PSW9524 KDC-9023R M (E) KDC-X869 KDC-8024 KDC-MP822 KDC-M7024 FX-5000 KDC-V7022 KDC-X769 KDC-722 KDC-7024 KDC-7024Y KDC-8023 M (K) Note : When FL model using TYPE2, K & J type (with ANT_CON model) : L, E type (without ANT_CON model) : H...
  • Page 9 KDC-M7024/MP822 MICROCOMPUTER’S TERMINAL DESCRIPTION MECHANISM MICROCOMPUTER : 703033BYGC-J02 (X32-541 : IC7) STBY Pin No. Pin Name Processing Operation Processing Not used. Fixed Low E2P_SCL ROM correction E2P IC2 clock. Hi-Z Not used. Fixed Low 8, 9 Not used. Fixed Low Power ON/OFF control.
  • Page 10 KDC-M7024/MP822 MICROCOMPUTER’S TERMINAL DESCRIPTION STBY Pin No. Pin Name Processing Operation Processing BVss Bus interface GND. 57~64 AD8~AD15 Multiplex data/address Out-Low /HCSB Chip select control. H : OFF, L : ON Chip select control. H : OFF, L : ON DSP RESET DSP reset control.

  • Page 11: Test Mode

    KDC-M7024/MP822 TEST MODE How to enter the test mode Test mode specifications of the CD receiver While pressing and holding the Preset 1 and Preset 3 keys, • Forced ejection is inhibited in the reset start operation. When reset the unit.
  • Page 12 KDC-M7024/MP822 TEST MODE Menu-related specifications Panel mechanism • A short press of the Q key initiates the menu mode. • Auto-panel close inhibition when set-in the CD. • Pressing the DNPP key on the remote initiates the Menu • The panel operation inhibition at power ON/OFF and ACC mode.
  • Page 13 KDC-M7024/MP822 TEST MODE 2. Method of registration of the security code after 4. How to inscription the panel security code EEPROM (F/E) replacement (Code security model) 1) Enter the test mode. 2) Pressing the AM key on all lighting, check the “P-ROM WAIT”...
  • Page 14 KDC-M7024/MP822 PC BOARD (COMPONENT SIDE VIEW) ELECTRIC UNIT X25-966x-xx (J74-1474-12) C100 C256 R127 C128 C126 R105 C250 R300 C109 C132 R140 X25-966x-xx TEST R268 R141 Address R202 R102 R103 C200 R234 R235 R236 R262 R237 R217 R216 C110 IC15 DATA...
  • Page 15 KDC-M7024/MP822 SUB-CIRCUIT UNIT SWITCH UNIT X16-2140-10 (J74-1479-02) X16-2190-10 (J74-1484-12) C258 C257 R307 R303 R302 C255 R403 Q102 C410 Q104 R407 R406 C411 R405 R404 X16-2140-10 X16-2190-10 Address Address...
  • Page 16 KDC-M7024/MP822 PC BOARD (FOIL SIDE VIEW) ELECTRIC UNIT X25-966x-xx (J74-1474-12) C101 C251 R317 Q103 R316 R314 R313 R315 C408 R301 R133 AGND C130 IC12 R142 R267 R278 R274 R277 IF+B C204 R247 R232 R233 R227 R226 R225 C259 C260 X25-966x-xx...
  • Page 17 KDC-M7024/MP822 SUB-CIRCUIT UNIT SWITCH UNIT X16-2140-10 (J74-1479-02) X16-2190-10 (J74-1484-12) R146 SW14V R144 C103 R100 R101 C106 E2P5V R108 R133 C130 GREEN R142 E2PDATA C135 VOLB VOLA DATAS DATAL PAN5V VOLA ILL-GND ILL+B R111 C114 R109 R110 C13 C29 X16-2140-10 Address...
  • Page 18 KDC-M7024/MP822 PC BOARD (COMPONENT SIDE VIEW) CD PLAYER UNIT X32-5410-00 (J74-1487-12) CP15 CP20 IC13 CP21 CP13 IC10 CP10 CP14 CP24 CP12 CP11 CP9 R14 C31 X32-5410-00 Address Refer to the schematic diagram for the values of resistors and capacitors.
  • Page 19 KDC-M7024/MP822 PC BOARD (FOIL SIDE VIEW) CD PLAYER UNIT X32-5410-00 (J74-1487-12) CP17 CP23 CP16 CP18 CP22 CP19 IC11 IC12 12EJE /CLK DATA LE/LM LO/EJ MOTOR E2P-WR EFLG X32-5410-00 Address Address Refer to the schematic diagram for the values of resistors and capacitors.
  • Page 20 KDC-M7024/MP822 (X32-5410-00) DM2 (X92- ) A3.3V A3.3V LOADING & SLD+ SLED MOTOR AUDIO L.P.F 4.7K SLD- 4700P 2.7K IC2 (2/2) 330P 2.7K IOP1 IC2 (1/2) 4ch BTL DRIVER IOP2 A3.3V A.8V SW 3.3V AVR 330P 1500P (AUDIO) AD12 DM1 (X92- )
  • Page 21 KDC-M7024/MP822 4.7K VREF FCS+ (AUTO POWER +3.3V +3.3V +3.3V CONTROL) TRK+ TRK- FCS- AGCO DPU1 IOP1 1500P A3.3V (X93- ) 160K CP15 4.7K OPTICAL IOP2 3.3V CP23 PICKUP RGND 1.65V 3.3V 3.3V TEST3 AGND TEST2 AD12 AB12 TEST1 AD11 AB11...
  • Page 22 KDC-M7024/MP822 (X25-966X MODEL NAME FX-5000 to CD MECHANISM KDC-MP82 KDC-V702 KDC-722 KDC-8023 KDC-M702 KDC-7024 (X25-966X-XX) EXTERNAL DISPLAY & ∗ ∗ STEERING REMOTE CORD ∗ R320 R323 ∗ 2.2K 2.2K TP15 R310 470 R321 R322 ∗ TP16 2.2K 2.2K R309 470...
  • Page 23 KDC-M7024/MP822 (X25-966X-XX) C23, D54, D63, R203,225-227, R205,252, R258, R326-328, MODEL UNIT C100 C127 C129 R134 R135 R146 R147 R204 R206 R281 R282 R283 NAME 308-311 253,257 330,331 FX-5000 0-01 X86-3730-01 3900u16 1u6.3 UPD703030GC014 DTA114EUA 100K KDC-MP822 0-10 YES YES X86-3730-11 2200u16 0.068u16...
  • Page 24 KDC-M7024/MP822 ∗ Q1,8,9,13 : 2SA2057 Q23,26 : DTC114YUA or : 1N5393G-M5 : MA4056-M D63-65 : DA204U -328, : TDA7411 Q2,10,14,32-34 : 2SC4081 UN5214 : RB160L-40 : MA4047-M : IMSA-6801 : M5237ML Q3,27 : 2SA1576A Q24,25 : 2SB1240 : MA4056(N)-M : MA4068(N)-M ∗...
  • Page 25 R112 1.5K Q27,28 P-CON PROTECTION ∗ SERVO+B AVR P.CON R129 TP111 DC CORD 1/2W TP112 (E30-4942-05) : KDC-M7024 R104 REGULATOR IC KDC-7024/Y for A8V R105 Q4,5 1.29V X16- SW14V 13.7V Q6-8 AUDIO8V AVR KDC-MP822/M7024 (1/3) CAUTION : For continued safety, replace safety critical components only with manufacturer's recommended parts (refer to parts list).
  • Page 26 KDC-M7024/MP822 DISPLAY UNIT (X16-2140-10) N.C. KEY SCAN START SW REMO R67 330 R68 330 GREEN 5.0V VLCD 8.5V VLCD0 6.7V VLCD LCD DRIVER VLCD1 5.0V VLCD2 3.3V REMOTE CONTROL VLCD3 1.7V SENSOR VLCD4 TEST R24 47K 3.9K 4.9V 5.0V PAN-5V N.C.
  • Page 27 KDC-M7024/MP822 S106 S105 S104 S103 S102 S101 S100 KDC-MP822/M7024 (2/3) SWITCH UNIT (X16-2080-10) GND LINE B LINE PAN-DET LC75808W LC75878W RS-171 Q1,6 DTA114EUA or UN5111 Q5,11 2SC4081 MA3062-M 5.0V D2-5 DA204U B30-1564-05 D16-19 B30-1571-05 EEP ROM X16- D21,22 FTZ6.8E MA3091-M...
  • Page 28 B30-1566-05 DAP202U or KDC-MP822 (3/3) GND LINE MA142WA KDC-M7024 (3/3) B LINE RD6.8M CAUTION : For continued safety, replace safety critical components only with manufacturer's recommended parts (refer to parts list). Indicates safety critical components. To reduce the risk of electric shock, leakage-current or resistance measurements shall be carried out (exposed parts are acceptably insulated from the supply circuit) before the appliance is returned to the customer.

  • Page 29: Exploded View (Mechanism)

    KDC-M7024/MP822 EXPLODED VIEW (MECHANISM) DPU1 DFPC1 (X32-) φ : N09-4460-05 M1.7x8.5 : N09-4472-05 M1.7x2.5 : N09-6004-05 φ : N09-6006-05 2x3.5 : 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 Parts with the exploded numbers larger than 700 are not supplied.

  • Page 30: Exploded View (Unit)

    KDC-M7024/MP822 EXPLODED VIEW (UNIT) M2x1.9 N09-4448-05 FLAT WASHER N19-2176-04 N09-6073-05 RETAINIING RING N24-3015-60 M2x2 N09-6087-05 M2x2.5 N38-2025-46 N09-6088-05 M2.6x5(BLK) N38-2650-45 M2x3(BLK) N09-6089-05 M3x5 N67-3005-46 φ2x5 φ3x5 N09-6093-05 N83-3005-46 φ2x5(BLK) φ3x8 N09-6094-05 N83-3008-46 φ2x4 φ2x4(BLK) N86-2004-45 N09-6095-05 φ3x8 M2x3(BLK) N09-6096-05 N80-3008-46 φ3x10...

  • Page 31: Parts List

    MACHINE SCREW E30-4942-05 DC CORD (ISO) N09-6093-05 TAPTITE SCREW E30-6106-05 DC CORD N09-6094-05 MACHINE SCREW E : Europe K : North America K3 : KDC-MP822 Indicates safety critical components. M : Other Areas W : Without Europe E3 : KDC-M7024...
  • Page 32 E40-9364-05 FLAT CABLE CONNECTOR E41-0166-05 FLAT CABLE CONNECTOR R16-19 RK73GB2A102J CHIP R 1.0K J 1/10W E : Europe K : North America K3 : KDC-MP822 Indicates safety critical components. M : Other Areas W : Without Europe E3 : KDC-M7024...
  • Page 33 C112,113 C90-5418-05 ELECTRO 220UF 16WV L40-4795-91 SMALL FIXED INDUCTOR (4.7UH,J) C114 CK73GB1A224K CHIP C 0.22UF E : Europe K : North America K3 : KDC-MP822 Indicates safety critical components. M : Other Areas W : Without Europe E3 : KDC-M7024...
  • Page 34 J 1/10W R142 RK73GB2A183J CHIP R J 1/10W R285 RK73GB2A102J CHIP R 1.0K J 1/10W E : Europe K : North America K3 : KDC-MP822 Indicates safety critical components. M : Other Areas W : Without Europe E3 : KDC-M7024...
  • Page 35 ANALOGUE IC DTA124EUA DIGITAL TRANSISTOR UN5112 DIGITAL TRANSISTOR M5237ML ANALOGUE IC Q102 DTC124EUA DIGITAL TRANSISTOR E : Europe K : North America K3 : KDC-MP822 Indicates safety critical components. M : Other Areas W : Without Europe E3 : KDC-M7024...
  • Page 36 RK73GB2A472J CHIP R 4.7K J 1/10W CK73GB1H682K CHIP C 6800PF RK73GB2A103J CHIP R J 1/10W E : Europe K : North America K3 : KDC-MP822 Indicates safety critical components. M : Other Areas W : Without Europe E3 : KDC-M7024...
  • Page 37 CD MECHANISM ASSY (X92-4670-01) A10-4827-12 CHASSIS D10-4576-43 ARM ASSY D10-4579-03 LEVER ASSY D10-4581-13 D10-4582-13 D10-4583-03 D10-4584-03 D10-4585-03 E : Europe K : North America K3 : KDC-MP822 Indicates safety critical components. M : Other Areas W : Without Europe E3 : KDC-M7024...

  • Page 38: 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 2019 New Pechburi Road, Bangkapi, Huaykwang, Bangkok, 10320 Thailand Rembrücker-Str.

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