Kenwood KDC-9023R Service Manual
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Kenwood KDC-9023R Service Manual

Kenwood KDC-9023R Service Manual

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CD RECEIVER
KDC-9023R
QQ
3 7 63 1515 0
KDC-PSW9524
KDC-X969
SERVICE MANUAL
CD mechanism operation description is
not in this service manual.
Please, refer to service manual X92-
4030-0x (B51-7867-00).
TE
L 13942296513
Escutcheon
(B07-3079-01)
www
Remote controller assy
(RC-505)
(A70-2040-05)
: KDC-X969
.
Panel assy
(A64-2975-01): KDC-X969
Panel assy
(A64-2982-01): KDC-9023R, (A64-2984-01):KDC-PSW9524
Mounting hardware assy
(J21-9823-03)
Remote controller assy
Lever
(RC-420)
(D10-4674-04) x 2
x
ao
u163
(A70-2026-05)
y
: KDC-9023R/PSW9524
i
2 9
8
CD mechanism extension cord : W05-0935-00
s
50
Q Q
3
6 7
1 3
1 5
s
50
W
4
Plastic cabinet assy
DC cord (ISO)
(A02-2731-03)
(E30-4942-05)
: KDC-9023R/PSW9524
Screw set
(N99-1723-05)
co
: KDC-X969/9023R
Size AA battery
.
(Not supplied)
9 4
2 8
© 2003-2 PRINTED IN JAPAN
B53-0031-00 ( N ) 3379
W
4
Escutcheon
COMPACT
(B07-3079-01)
DIGITAL AUDIO
Panel assy
(A64-2993-02):
KDC-X969
0 5
8
2 9
9 4
2 8
Escutcheon
COMPACT
(B07-3079-01)
DIGITAL AUDIO
Panel assy
(A64-3002-02):
KDC-9023R/PSW9524
DC cord
(E30-6062-05)
: KDC-X969
m
Antenna adaptor
(T90-0552-05)
: KDC-9023R/PSW9524
Screw set
(N99-1734-05)
9 9
9 9

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Summary of Contents for Kenwood KDC-9023R

  • Page 1 Please, refer to service manual X92- Panel assy 4030-0x (B51-7867-00). (A64-2975-01): KDC-X969 Escutcheon COMPACT (B07-3079-01) DIGITAL AUDIO Panel assy (A64-2993-02): KDC-X969 Panel assy (A64-2982-01): KDC-9023R, (A64-2984-01):KDC-PSW9524 L 13942296513 Escutcheon COMPACT (B07-3079-01) DIGITAL AUDIO Panel assy (A64-3002-02): KDC-9023R/PSW9524 Escutcheon Mounting hardware assy Plastic cabinet assy...

  • Page 2: How To The Panel Mechanism Assembly

    KDC-9023R /PSW9524/X969 3 7 63 1515 0 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-9023R /PSW9524/X969 BLOCK DIAGRAM 3 7 63 1515 0 AUX IN (X25-964) Q207,208 IC13 PRE OUT TUNER PRE MUTE OP AMP (NF) AUDIO OUT Q203,204 Q303,304 IC12 E-VOL SYSTEM PRE OUT & AM+B PRE MUTE OP AMP E'S+ (REAR) Q205,206...

  • Page 4: Components Description

    KDC-9023R /PSW9524/X969 BLOCK DIAGRAM 3 7 63 1515 0 (X32-5440-00) MOTHER A. GND PICK-UP BOARD IC11 A. GND A. GND 1 CHIP IC A3.3 REG A. GND D. GND SERVO IC13 PROCESSOR VREF DRAM 8V SW A. +8V RF AMP D.

  • Page 5: Switch Unit (X16-2170-10)

    KDC-9023R /PSW9524/X969 COMPONENTS DESCRIPTION 3 7 63 1515 0 Ref. No. Application/Function Operation/Condition/Compatibility Q2, 3 FL+B SW FL+B (VDD2) is turned on when Q3’s base level goes “H” FL3.3V SW FL+3.3V (VDD1) is turned on when Q4’s base level goes “H”...

  • Page 6: Cd Player Unit (X32-5440-00)

    KDC-9023R /PSW9524/X969 COMPONENTS DESCRIPTION 3 7 63 1515 0 Ref. No. Application/Function Operation/Condition/Compatibility Q20 and 22 works as a differential amplifier, Q21 works as a driver and +9.4V is supplied Q20~22 Pre-Amp +9V AVR to OP amp for Pre-out. Q23, 24 P-ANT SW When Q23’base goes Hi, P-ANT SW outputs 14V.

  • Page 7: Microcomputer's Terminal Description

    KDC-9023R /PSW9524/X969 MICROCOMPUTER’S TERMINAL DESCRIPTION 3 7 63 1515 0 SYSTEM MICROCOMPUTER : 703033BGC020 (X25-964 : IC1) Pin No. Pin Name Module Purpose / Description Truth table Processing Operation PLL_DATA Tuner Data output/input with F/E. AM+B Power supply AM+B. AM operation : H...
  • Page 8 KDC-9023R /PSW9524/X969 MICROCOMPUTER’S TERMINAL DESCRIPTION 3 7 63 1515 0 Pin No. Pin Name Module Purpose / Description Truth table Processing Operation Tuner ON : H, Other source With RDS last FM ANT_CON Extra Antenna control. : H, Other source with RDBS TI ON last FM : H...
  • Page 9 KDC-9023R /PSW9524/X969 MICROCOMPUTER’S TERMINAL DESCRIPTION 3 7 63 1515 0 Pin No. Pin Name Module Purpose / Description Truth table Processing Operation CD_SW3 DC down switch detection. Chucking : H LO/EJ CD mechanism loading/eject switch. Stop, brake : Hi-Z, Loading : L, Eject : H MOSW CD mechanism motor driver switch.
  • Page 10 KDC-9023R /PSW9524/X969 MICROCOMPUTER’S TERMINAL DESCRIPTION 3 7 63 1515 0 Pin No. Pin Name Module Purpose / Description Truth table Processing Operation R_DATA Tuner RDS decoder data input. LX_DATA_S Data input from external slave. LX_DATA_M Data output to external slave.
  • Page 11 KDC-9023R /PSW9524/X969 MICROCOMPUTER’S TERMINAL DESCRIPTION 3 7 63 1515 0 Destination(IC2) TYPE0 TYPE1 Market model Market model CRSC modiification OEM model CRSC modification OEM model CRSC and de-emphasis modification e FPM MOTOR Slide FPM mechanism operation FPM MOTOR B FPM MOTOR F...
  • Page 12 KDC-9023R /PSW9524/X969 MICROCOMPUTER’S TERMINAL DESCRIPTION 3 7 63 1515 0 PANEL MICROCOMPUTER : 703107AGJ152 (X16-210 : IC11) Pin No. Pin Name Purpose / Description Procesing Operation D14~D8 External ROM data. 3.3V VDD PAN 3.3V 10~17 D7~D0 External ROM data. Use for µ-com rewriting.
  • Page 13 KDC-9023R /PSW9524/X969 MICROCOMPUTER’S TERMINAL DESCRIPTION 3 7 63 1515 0 Pin No. Pin Name Purpose / Description Procesing Operation PAN RST CKSEL Clock generator operation mode. Connect to GND 3.3V VDD PAN 3.3V Main clock 5MHz main clock 5MHz FL CLK Clock output to FL driver.

  • Page 14: Sram Check

    KDC-9023R /PSW9524/X969 MICROCOMPUTER’S TERMINAL DESCRIPTION 3 7 63 1515 0 Pin No. Pin Name Purpose / Description Procesing Operation Output : L SRAM CHECK SRAM write check. OK : L, NG : L (Check land necessary) FLASHROM CHECK Flash ROM write check.
  • Page 15 KDC-9023R /PSW9524/X969 MICROCOMPUTER’S TERMINAL DESCRIPTION 3 7 63 1515 0 MECHANISM MICROCOMPUTER : 703030BYGC-J02 (X32-544 : 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.
  • Page 16 KDC-9023R /PSW9524/X969 MICROCOMPUTER’S TERMINAL DESCRIPTION 3 7 63 1515 0 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.

  • Page 17: Test Mode

    KDC-9023R /PSW9524/X969 TEST MODE 3 7 63 1515 0 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 18 KDC-9023R /PSW9524/X969 TEST MODE 3 7 63 1515 0 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 •...
  • Page 19 KDC-9023R /PSW9524/X969 TEST MODE 3 7 63 1515 0 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 20: Pc Board (Component Side View)

    KDC-9023R /PSW9524/X969 3 7 63 1515 0 PC BOARD (COMPONENT SIDE VIEW) ELECTRIC UNIT X25-964x-xx (J74-1473-12) C100 C277 C274 C273 C272 C215 C205 C275 MUTE IC18 I G O C265 C264 R244 C299 C259 D504 Q208 IC13 Q207 C269 C268...
  • Page 21 KDC-9023R /PSW9524/X969 3 7 63 1515 0 SUB-CIRCUIT UNIT SWITCH UNIT X16-2100-10 (J74-1477-12) X16-2170-10 (J74-1482-12) C279 C275 C278 C206 C314 L305 L307 R308 Q305 R307 C311 R305 R306 L 13942296513 L306 C502 u163 X16-2100-10 X16-2170-10 Address Address...
  • Page 22 KDC-9023R /PSW9524/X969 3 7 63 1515 0 PC BOARD (FOIL SIDE VIEW) ELECTRIC UNIT X25-964x-xx (J74-1473-12) D208 D207 R204 D206 D205 FM+B Q202 C217 C216 D501 AM+B C213 C260 R203 C261 IC17 Q304 C262 D502 D503 C263 R254 C257 C258...

  • Page 23: Switch Unit

    KDC-9023R /PSW9524/X969 3 7 63 1515 0 SUB-CIRCUIT UNIT SWITCH UNIT X16-2100-10 (J74-1477-12) X16-2170-10 (J74-1482-12) R265 C286 C5 CP14 CP21 CP15 CP24 CP31 CP25 D204 D203 CP16 CP20 ILL+B CP17 CP26 CP30 CP27 CP18 CP19 CP28 CP29 CP32 CP33 CP23...
  • Page 24 KDC-9023R /PSW9524/X969 3 7 63 1515 0 PC BOARD (COMPONENT SIDE VIEW) CD PLAYER UNIT X32-5440-00 (J74-1487-12) CP15 CP20 IC13 CP21 CP13 IC10 CP10 L 13942296513 CP14 CP24 CP12 CP11 CP9 R14 C31 X32-5440-00 Address u163 Refer to the schematic diagram for the values of resistors and capacitors.
  • Page 25 KDC-9023R /PSW9524/X969 3 7 63 1515 0 PC BOARD (FOIL SIDE VIEW) CD PLAYER UNIT X32-5440-00 (J74-1487-12) CP17 CP23 CP16 CP18 CP22 CP19 IC11 IC12 12EJE /CLK DATA LE/LM LO/EJ L 13942296513 MOTOR E2P-WR EFLG X32-5440-00 Address Address u163 Refer to the schematic diagram for the values of resistors and capacitors.
  • Page 26 KDC-9023R /PSW9524/X969 3 7 63 1515 0 (X25-964X-XX) UNIT MODEL NAME F G H (X86-373X-XX) KDC-X969 0-10 0-11 KDC-X869 0-11 0-11 KDC-MP922 0-12 0-11 FX-9000 0-01 0-01 KDC-PSW9524 2-71 2-70 FRONT L REAR L WHT/BLK GRN/BLK KDC-8024 2-72 2-70 KDC-9023R...
  • Page 27 KDC-9023R /PSW9524/X969 3 7 63 1515 0 (X25-964X-XX) UNIT C203- C264,265,268, D203, R48, R124- R148,149, R222,223,234, R230,231,242, MODEL NAME C501 C502 C505 R106 R107 R108 R109 R185 R526 269,297,298 (703033BGCXXX) 154,155,521 235,246,247 243,254,255 KDC-X969 0-10 22u16 100K 2.2K KDC-X869 0-11...
  • Page 28 KDC-9023R /PSW9524/X969 3 7 63 1515 0 AUX IN REAR FRONT NON-F REAR FRONT NON-F (E30-6209-05) : KDC-X969/X869/MP922/9023R (E30-6210-05) : KDC-PSW9524 (E30-6214-05) : FX-9000 (E30-6211-05) : KDC-8024 F1 10A FUSE ∗ R265 C286 0.01 C288 C287 C289 C110 0.01 R166 R165 4.7K...
  • Page 29 KDC-9023R /PSW9524/X969 3 7 63 1515 0 AMP for 4.5V AMP for 4.5V AMP for 4.5V PRE-OUT PRE-OUT PRE-OUT IC12 IC11 IC13 ∗ C284 2200P C285 2200P -9.1V -9.1V -9.1V C281 2200P R266 R237 R236 R224 R225 R249 R248 ∗...
  • Page 30 KDC-9023R /PSW9524/X969 3 7 63 1515 0 ∗ ∗ : TC74HCO2AF Q1,8,9,13 2SA2057 : TDA7411 IC10-13 : NJM4565M-TE2 Q2,14,16,17,20,22, : M5237ML IC14 : TDA7479D 27,29,210,602 : TDA7560 IC15,16 LB1930M 2SC4081 : TDA7401 IC17 BR24C01AF-W Q3,18,19,21 2SA1576A : NJM2195FJ1 IC18 : L9820D013TR...
  • Page 31 KDC-9023R /PSW9524/X969 3 7 63 1515 0 DISPLAY UNIT (X16-2100-10) 50.3V R9 22 FL+B 1 9.4V FL3.3V SW 3.3V SW ILL+B 2 FLGND FLGND FAC2 FAC2 5.0V BUFFER IC FAC1 5.0V FAC1 32x18 Pixel/2 Colors BUFFER IC D GND 3.3V D GND 3.3V...
  • Page 32 3.3V NC22 NC23 BR24C01AFV-W • DC voltages are as measured with a high impedance voltmeter. Values may vary slightly due to variations between individual instru- KDC-X969(K) (2/3) KDC-9023R(M) (2/3) ments or/and units KDC-PSW9524(E) (2/3) NJM4565M-TE2 DAP202U MA142WA RD6.8M TC74HCT7007AF DA204K...
  • Page 33 2SC4081 LB1930M D1-11,13,15,17 B30-1605-05 D12,14,16,18,19 B30-1564-05 DAP202U or KDC-X969 (3/3) MA142WA KDC-9023R (3/3) GND LINE B30-1566-05 KDC-PSW9524 (3/3) B LINE MA8068-M TC74HC4050AFT TDA7479D CAUTION : For continued safety, replace safety critical components only with manufacturer's recommended parts (refer to parts list).
  • Page 34 KDC-9023R /PSW9524/X969 3 7 63 1515 0 (X32-5440-00) A3.3V DM2 (X92- ) LOADING & SLD+ SLED MOTOR AUDIO L.P.F SLD- 4700P 2.7K IC2 (2/2) 330P 2.7K IC2 (1/2) 4ch BTL DRIVER A3.3V A.8V SW 3.3V AVR 330P 1500P (AUDIO) DM1 (X92- )
  • Page 35 KDC-9023R /PSW9524/X969 3 7 63 1515 0 A3.3V A3.3V D2.5V 4.7K +2.5V +3.3V 100K (AUTO POW CONTROL CP12 CP11 100K 100K 100K 100K IOP1 2.5V VDD22 +2.5V 3.3V IOP2 +3.3V VDD34 3.3V HAD6 3.3V 3.3V HAD7 MCK48 HAD8 MCK44 HAD9...
  • Page 36 KDC-9023R /PSW9524/X969 3 7 63 1515 0 VREF FCS+ (AUTO POWER +3.3V +3.3V +3.3V CONTROL) TRK+ TRK- FCS- AGCO 1500P DPU1 1500P 1500P A3.3V (X93- ) 1500P 160K CP15 4.7K 1500P OPTICAL 3.3V PICKUP CP23 1.65V RGND 3.3V 3.3V AGND...

  • Page 37: Exploded View (Mechanism)

    KDC-9023R /PSW9524/X969 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...

  • Page 38: Exploded View (Unit)

    KDC-9023R /PSW9524/X969 EXPLODED VIEW (UNIT) 3 7 63 1515 0 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)

  • Page 39: Parts List

    KNOB (1-6) D16-0617-05 BELT K29-7031-03 KNOB ASSY (VOL) D23-0958-04 RETAINER N99-1723-05 SCREW SET E : Europe K : North America K : KDC-X969 Indicates safety critical components. M : Other Areas W : Without Europe M1 : KDC-9023R E1 : KDC-PSW9524...
  • Page 40 CHIP C 4.7UF RK73GB2A103J CHIP R J 1/10W C30,31 CK73GB1C104K CHIP C 0.10UF E : Europe K : North America K : KDC-X969 Indicates safety critical components. M : Other Areas W : Without Europe M1 : KDC-9023R E1 : KDC-PSW9524...
  • Page 41 CK73GB0J105K CHIP C 1.0UF B30-1564-05 LED (1608, BLUE) CK73EB1C225K CHIP C 2.2UF E : Europe K : North America K : KDC-X969 Indicates safety critical components. M : Other Areas W : Without Europe M1 : KDC-9023R E1 : KDC-PSW9524...
  • Page 42 CHIP C 0.047UF K C232 CK73FB1C105K CHIP C 1.0UF E41-0224-05 PIN ASSY E : Europe K : North America K : KDC-X969 Indicates safety critical components. M : Other Areas W : Without Europe M1 : KDC-9023R E1 : KDC-PSW9524...
  • Page 43 R26,27 RK73GB2A913J CHIP R J 1/10W R162 RK73GB2A103J CHIP R J 1/10W E : Europe K : North America K : KDC-X969 Indicates safety critical components. M : Other Areas W : Without Europe M1 : KDC-9023R E1 : KDC-PSW9524...
  • Page 44 J 1/4W R269 RK73EB2E100J CHIP R J 1/4W MA3047-M ZENER DIODE M1E1 E : Europe K : North America K : KDC-X969 Indicates safety critical components. M : Other Areas W : Without Europe M1 : KDC-9023R E1 : KDC-PSW9524...
  • Page 45 TRANSISTOR C9,10 CK73GB1H104K CHIP C 0.10UF 2SC4081 TRANSISTOR CC73GCH1H681J CHIP C 680PF E : Europe K : North America K : KDC-X969 Indicates safety critical components. M : Other Areas W : Without Europe M1 : KDC-9023R E1 : KDC-PSW9524...
  • Page 46 CHIP R J 1/10W L78-0861-05 RESONATOR (24.57MHZ) RK73GB2A223J CHIP R J 1/10W E : Europe K : North America K : KDC-X969 Indicates safety critical components. M : Other Areas W : Without Europe M1 : KDC-9023R E1 : KDC-PSW9524...
  • Page 47 SLIDER D10-4587-22 SLIDER D10-4588-13 SLIDER u163 D10-4595-04 D10-4596-14 D13-2151-04 GEAR D13-2152-04 GEAR E : Europe K : North America K : KDC-X969 Indicates safety critical components. M : Other Areas W : Without Europe M1 : KDC-9023R E1 : KDC-PSW9524...

  • Page 48: Specifications

    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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Kdc-psw9524Kdc-x969

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