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Kenwood KDC-9026R Service Manual
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Kenwood KDC-9026R Service Manual

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CD RECEIVER
KDC-9026R
QQ
3 7 63 1515 0
KDC-PSW9527
KDC-W9027
KDC-X979
SERVICE MANUAL
TE
L 13942296513
* DC cord
(E30-6294-05)
*Remote controller assy
(A70-2026-05) : RC-420
Lever
(D10-4674-04) x 2
www
.
* Depends on model. Refer to the parts list.
Panel assy
KDC-9026R (A64-3236-11)
KDC-9026R
Panel assy
KDC-W9027 (A64-3238-01)
KDC-W9027
* DC cord
(E30-4942-05)
*Remote controller assy
(A70-2040-05) : RC-505
*Size AA Battery
(Not Supplied)
x
ao
y
i
8
Q Q
3
6 7
1 3
* Escutcheon
Mounting hardware assy
(B07-3078-01)
(J21-9823-03)
(B07-3079-01)
*Screw set
(N99-1723-05)
TDF PANEL INFORMATION
MODEL
u163
KDC-9026R
KDC-PSW9527
KDC-X979
.
KDC-W9027
2 9
9 4
2 8
© 2004-02 PRINTED IN JAPAN
B53-0132-00 ( N ) 2704
Panel assy
KDC-PSW9527 (A64-3237-11)
KDC-PSW9527
Panel assy
KDC-X979 (A64-3235-11)
1 5
0 5
8
2 9
9 4
* Antenna adaptor
(T90-0552-05)
Plastic cabinet assy
(A02-2731-13)
Screw
(N99-1734-05)
m
PARTS NO.
PANEL NAME
co
Y33-1790-60
TDF-M9000
Y33-1790-61
TDF-M7000
9 9
2 8
9 9
KDC-X979

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Summary of Contents for Kenwood KDC-9026R

  • Page 1 3 7 63 1515 0 KDC-PSW9527 KDC-W9027 KDC-X979 © 2004-02 PRINTED IN JAPAN SERVICE MANUAL B53-0132-00 ( N ) 2704 Panel assy Panel assy KDC-9026R (A64-3236-11) KDC-PSW9527 (A64-3237-11) KDC-9026R KDC-PSW9527 Panel assy Panel assy KDC-W9027 (A64-3238-01) KDC-X979 (A64-3235-11) L 13942296513...

  • Page 2: Block Diagram

    KDC-9026R/PSW9527 KDC-W9027/X979 BLOCK DIAGRAM 3 7 63 1515 0 ELECTRIC UNIT AUX IN (X34- ) Q207,208 IC13 PRE OUT TUNER (SUB WOOFER) PRE MUTE OP AMP (CENTER) AUDIO OUT Q203,204 Q303,304 IC12 E-VOL PRE OUT AM+B PRE MUTE OP AMP &...
  • Page 3 KDC-9026R/PSW9527 KDC-W9027/X979 BLOCK DIAGRAM 3 7 63 1515 0 CD PLAYER UNIT (X32-5520-00) MAIN 1.6V REG. DPU1 : BOARD OPTICAL PICKUP A3.3V A+8V RF AMP/ IC10 SERVO PROCESSOR/ L-ch MP3 DECODER/ R-ch WMA DECODER/ A.GND 1Mbit SRAM MRST VREF MSTOP...
  • Page 4 KDC-9026R/PSW9527 KDC-W9027/X979 COMPONENTS DESCRIPTION 3 7 63 1515 0 Ref No. Application / Functions Operation / Condition / Compatibility 3.3V SW SW3.3V is turned on when Q5 base level goes L Q6,200 FL 3.3V SW FL +3.3V (VDD1) is turned on when Q200 base level goes H...
  • Page 5 KDC-9026R/PSW9527 KDC-W9027/X979 COMPONENTS DESCRIPTION 3 7 63 1515 0 Ref No. Application / Functions Operation / Condition / Compatibility IC15,16 Motor driver Control for Panel mechanism motor IC18 P-CON IC Power control IC IC19 Power supply IC Switching regulator IC for CD4.7V...
  • Page 6 KDC-9026R/PSW9527 KDC-W9027/X979 MICROCOMPUTER’S TERMINAL DESCRIPTION 3 7 63 1515 0 SYSTEM MICROPROCESSOR : 703030YGCJ07-A (X34-305 : IC1) Pin No. Pin Name Description / Processing Operation Fig. CD SDA CD mechanism, IC2, IC5, ROM correction DATA line TUN SCL Clock input/ output to Tuner front-end...
  • Page 7 KDC-9026R/PSW9527 KDC-W9027/X979 MICROCOMPUTER’S TERMINAL DESCRIPTION 3 7 63 1515 0 Pin No. Pin Name Description / Processing Operation Fig. LX CON External slave unit (ON : H, OFF : L) LX RST Reset output to external slave unit (Normal : L, After system reset : H 400ms or more and then L)
  • Page 8 KDC-9026R/PSW9527 KDC-W9027/X979 MICROCOMPUTER’S TERMINAL DESCRIPTION 3 7 63 1515 0 Pin No. Pin Name Description / Processing Operation Fig. TUN SMETER S meter detection terminal RDS NOISE FM noise detection terminal TUN IFC OUT Front end IFC OUT input terminal (Receiving station : 2.5V or more)
  • Page 9 KDC-9026R/PSW9527 KDC-W9027/X979 MICROCOMPUTER’S TERMINAL DESCRIPTION 3 7 63 1515 0 PANEL MICROPROCESSOR : 703132GJ011-A (X16-253 : IC1) Pin No. Pin Name Description / Processing Operation D14~D8 External ROM data input/output terminal 3.3VDD AVR 3.3V 10~17 D7~D0 External ROM data input/output terminal...
  • Page 10 KDC-9026R/PSW9527 KDC-W9027/X979 MICROCOMPUTER’S TERMINAL DESCRIPTION 3 7 63 1515 0 Pin No. Pin Name Description / Processing Operation 64,65 MODE0,1 PAN RST Reset signal request form system microprocessor (L : Reset) VREF Connect to 83PIN (VREF) 68,69 70,71 AVSS1,0 VREF...
  • Page 11 KDC-9026R/PSW9527 KDC-W9027/X979 MICROCOMPUTER’S TERMINAL DESCRIPTION 3 7 63 1515 0 Pin No. Pin Name Description / Processing Operation 109,110 SA RST Reset for spectrum analyzer (H : Reset, L : Normal) 3.3V VDD AVR 3.3V EVSS 114~117 118~123 A21~A16 Address bus 2.5V VDD...
  • Page 12 KDC-9026R/PSW9527 KDC-W9027/X979 MICROCOMPUTER’S TERMINAL DESCRIPTION 3 7 63 1515 0 Pin No. Pin Name Description / Processing Operation Power ON/OFF control (L : Power OFF) 30~32 EVSS EVDD SYS_SDA System I2C data input / output terminal SYS_SCL System I2C clock input / output terminal...
  • Page 13 KDC-9026R/PSW9527 KDC-W9027/X979 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 14 ON time displaying. L 13942296513 (Display) PonTim xxxxx Max. 60000 (hours) Check the Flash ROM (KDC-X979, KDC-9026R, [PRESET 4] Short press : Display CD operation time. KDC-W9027) 2 seconds long press/hold : Clear CD operation 1. Display to the following effect at ALL OFF by assortment time at the CD operation time displaying.
  • Page 15 KDC-9026R/PSW9527 KDC-W9027/X979 TEST MODE 3 7 63 1515 0 5. Hold down the Track Up key for at least 3 seconds and the Demonstration mode message, “RE-ENTER” appears, so once again enter the 1. How to enter to the Demonstration mode code according to Step 4 above.
  • Page 16 KDC-9026R/PSW9527 KDC-W9027/X979 PC BOARD (COMPONENT SIDE VIEW) 3 7 63 1515 0 ELECTRIC UNIT X34-3050-11/21, X34-3052-71/72 (J74-1585-02) C100 C277 C272 C274 C205 C215 C210 C269 IC18 C250 C268 I G O C297 R244 C209 D504 C299 Q208 MUTE IC13 C265...
  • Page 17 KDC-9026R/PSW9527 KDC-W9027/X979 3 7 63 1515 0 SWITCH UNIT X16-2560-10 (J74-1590-02) C247 C279 C274 C273 C275 R261 C278 C206 D504 L305 C314 L307 L 13942296513 R308 R307 C311 R305 R306 L306 4.332MHz X34-3050-11/21, X34-3052-71/72 Ref. No. Address Ref. No. Address...
  • Page 18 KDC-9026R/PSW9527 KDC-W9027/X979 PC BOARD (FOIL SIDE VIEW) 3 7 63 1515 0 ELECTRIC UNIT X34-3050-11/21, X34-3052-71/72 (J74-1585-02) INRR INFL INRL INFR ACGND L201 D206 D205 R202 FM+B C212 C246 AM+B IC17 Q304 R211 Q202 AUDIO OUT R506 R266 CENT FPM1+...
  • Page 19 KDC-9026R/PSW9527 KDC-W9027/X979 3 7 63 1515 0 SWITCH UNIT X16-2560-10 (J74-1590-02) R265 C286 ILL+B D204 D203 C701 SERVO+B Q601 Q602 L 13942296513 C296 X34-3050-11/21, X34-3052-71/72 Ref. No. Address Ref. No. Address IC10 R272 C291 IC10 IC14 SW5V IC15 Q210 IC16...
  • Page 20 KDC-9026R/PSW9527 KDC-W9027/X979 PC BOARD (COMPONENT SIDE VIEW) 3 7 63 1515 0 ELECTRIC UNIT X34-3060-10, X34-3062-71 (J74-1586-02) C123 C122 C181 C128 C141 C121 C127 C146 C145 C143 11.2896MHz C152 C155 R155 R156 IC10 IC12 L 13942296513 IC11 C161 X34-3060-10, X34-3062-71 Ref.
  • Page 21 KDC-9026R/PSW9527 KDC-W9027/X979 3 7 63 1515 0 PC BOARD (FOIL SIDE VIEW) ELECTRIC UNIT X34-3060-10, X34-3062-71 (J74-1586-02) C124 R112 R114 IC13 IC14 C171 R171 C173 R172 R168 C144 C142 R124 C131 R123 CODEC R122 R125 R126 R121 C149 C148 MUTE...
  • Page 22 KDC-9026R/PSW9527 KDC-W9027/X979 PC BOARD (COMPONENT SIDE VIEW) 3 7 63 1515 0 CD PLAYER UNIT X32-5520-00 (J74-1556-12) /MUTE-R /MUTE-L SYS-SDA CP15 R26 R23 SYS-SCL PSEL SSEL CP33 ASEL E2PWR /MRST LRCK /MSTOP LOE-SW BU5V /SCKB0 EJECT LOAD FLMD0 /D-MUTE /BMS...
  • Page 23 KDC-9026R/PSW9527 KDC-W9027/X979 PC BOARD 3 7 63 1515 0 (FOIL SIDE VIEW) (COMPONENT SIDE VIEW) DISPLAY UNIT DISPLAY UNIT X16-2530-10/11 (J74-1587-02) X16-2530-10/11 (J74-1587-02) R203 CP17 CP20 CP24 CP14 CP22 CP18 CP13 CP15 CP300 CP16 CP12 L 13942296513 TEST X16-2530-10/11 GREEN...
  • Page 24 KDC-9026R/PSW9527 KDC-W9027/X979 3 7 63 1515 0 (X34-305x-xx) P.CON UNIT C244, R124- W4,5 MODEL NAME R106 R107 R108 R109 KDC-X979 0-10 X86-3730-11 KDC-9026R 0-21 X86-3732-70 KDC-PSW9527 2-71 X86-3732-70 KDC-W9027 2-72 X86-3732-70 ELECTRIC UNIT (X34-305x-xx) 220u16 AUDIO 10.5V AVR Q16 Q15 B.U.5V...
  • Page 25 KDC-9026R/PSW9527 KDC-W9027/X979 3 7 63 1515 0 DC CORD FRONT L REAR L WHT/BLK GRN/BLK (E30-4942-05) WHT/BLK GRN/BLK GRY/BLK VIOL/BLK KDC-9026R DC CORD GRY/BLK VIOL/BLK KDC-W9027 FRONT R REAR R AUX IN 6 11 VIOL (E30-6294-05) : KDC-X979 VIOL KDC-PSW9527...
  • Page 26 KDC-9026R/PSW9527 KDC-W9027/X979 3 7 63 1515 0 AUX IN REAR FRONT CENT AUX IN REAR FRONT AMP for 4.5V PRE-OUT (E30-6315-05) : KDC-X979/9026R (E30-6317-05) : KDC-W9027 IC12 (E30-6316-05) : KDC-PSW9527 F1 10A ∗ C284 FUSE 2200P C285 2200P R265 C281 2200P -9.1V...
  • Page 27 KDC-9026R/PSW9527 KDC-W9027/X979 3 7 63 1515 0 LX-BUS ∗ AMP for 4.5V PRE-OUT IC13 AMP for 4.5V PRE-OUT IC11 -9.1V R249 R248 -9.1V R247 R246 R266 R224 R225 2.2K 2.2K ∗ ∗ C290 R222 R223 0.01 Q207 Q208 2.2K 2.2K...
  • Page 28 X34-306- • DC voltages are as measured with a high impedance voltmeter. Values may vary slightly KDC-9026R, KDC-PSW9527, KDC-W9027, KDC-X979 (1/4) due to variations between individual instruments or/and units. X34-3050-11/21, X34-3052-71/72 (5/5)
  • Page 29 KDC-9026R/PSW9527 KDC-W9027/X979 3 7 63 1515 0 ELECTRIC UNIT (X34-306x-xx) R80 150 ∗ ∗ ∗ 8.0V SW3' DOLBY PROLOGIC DOLBY PROLOGIC SUB OUTPUT ADDER BUS MANAGEMENT SW L,P,F L,P,F ∗ L.P.F C114 C113 (REAR) C115 (FRONT) (CENTER 0.01 0.01 0.01 AOUT 8.0V...
  • Page 30 0.01 I/O3 I/O4 R172 C173 R171 C171 0.01 0.01 A3.3V D3.3V 3.3V LEVEL SHIFT KDC-9026R, KDC-PSW9527, KDC-Q9027,KDC-X979 (2/4) (X34-306x-xx) IC1-6,8,9 : NJM4580M1 Q1,2 : 2SB1188(Q,R) UNIT MODEL NAME : TC9214AF DIGITAL LINE IC10 : AK7720AVT : HZ6C2L KDC-X979 AUDIO LINE...
  • Page 31 KDC-9026R/PSW9527 KDC-W9027/X979 3 7 63 1515 0 DISPLAY UNIT (X16-2530-1x) FL+B 1 FL3.3V SW 3.3V SW TP300 ILL+B 2 FLGND FLGND REMO. FAC2 ON SW R202 FAC2 3.3V Q200 FAC1 5.0V 3.3V FAC1 LEVEL SHIFT D GND D GND 3.3V 3.3V...
  • Page 32 KDC-9026R/PSW9527 KDC-W9027/X979 3 7 63 1515 0 3.3V 5.0V LEVEL SHIFT 5.0V 5.0V 3.3V 3.3V REMOTE CONTROL SENSOR 5.0V GRAPHIC ROM 3.3V 3.3V BYTE BLACK DISP VSS2 L 13942296513 DISP LED 3.3V CP10 SD15 3.3V 3.3V 3.3V 10u10 RED LED...
  • Page 33 3.3V 5.0V 100K GRADATION CONTROL CP30 3.3V 3.3V 3.3V KDC-9026R, KDC-PSW9527, KDC-W9027,KDC-X979 (2/3) SWITCH UNIT (X16-2080-xx) PAN-DET ∗ ∗ 5.0V EEP ROM CAUTION : For continued safety, replace safety critical components only with u163 manufacturer’s recommended parts (refer to parts list).
  • Page 34 X16-253- L 13942296513 NC 11 VOL-B VOL-A D GND PAN-5V ILL +B ILL +B ILL-GND ESD GND OPEN VOLUME KDC-9026R, KDC-PSW9527, KDC-W9027, KDC-X979 (3/3) (X16-256x-xx) C1-5, D11-15, UNIT : DTA114YUA MODEL NAME D1-10 R1,2 R3,4 R6-10 7-12 17-22 Q2-4 : 2SD2114K...
  • Page 35 KDC-9026R/PSW9527 KDC-W9027/X979 3 7 63 1515 0 CAUTION : For continued safety, replace safety critical components only with manufacturer’s rec- SPINDLE LIM SW ommended parts (refer to parts list). MOTOR & LIM SW SLED CD PLAYER UNIT Indicates safety critical components. To reduce...
  • Page 36 KDC-9026R/PSW9527 KDC-W9027/X979 3 7 63 1515 0 : BD7931F IC41LV16100S50 or Q1,6,12 : DTA143XUA SIGNAL LINE : XC6219B332MR MSM51V18165F60 Q2,7,13 : DTC143XUA : BR24C01AFV-W : TAR5S33-F 2SB0970 GND LINE : BA033SFP IC10 NJM4580V-LF 2SC2873-F B LINE 703260YGCK01A UMD9N : AN41204A...
  • Page 37 KDC-9026R/PSW9527 KDC-W9027/X979 3 7 63 1515 0 TP89 F- TP88 T- TP87 T+ TP86 F+ DPU1 TP91 LD TP90 OPTICAL TP92 PICK UP TP80 TP79 AGND AGCO TP76 TP61 ADIN 0.01 TP60 TP62 1.65V 0.32Vp-p CP26 DVDD 0.8Vp-p 4.7K 2.9Vp-p 1.65V...
  • Page 38 KDC-9026R/PSW9527 KDC-W9027/X979 EXPLODED VIEW (MECHANISM) 3 7 63 1515 0 M1.4x3 N09-6143-05 M1.6x2 N09-6144-05 M1.7x4.5 N09-6145-05 M1.4x1.6 N09-6156-05 N09-6230-05 N19-2192-04 L 13942296513 (X16-2380) DPC1 u163 (X32-) Parts with the exploded numbers larger than 700 are not supplied.
  • Page 39 KDC-9026R/PSW9527 KDC-W9027/X979 EXPLODED VIEW (UNIT) 3 7 63 1515 0 M2x1.9 N09-4448-05 RETAINIING RING N24-3015-60 N09-6073-05 M2x2.5 N38-2025-46 M2x2 N09-6087-15 M2.6x5(BLK) N38-2650-45 N09-6088-05 M3x5 N67-3005-46 φ3x5 M2x3(BLK) N09-6089-15 N83-3005-46 φ2x5 φ3x8 N09-6093-05 N83-3008-46 φ2x5(BLK) φ2x4(BLK) N09-6094-05 N86-2004-45 φ2x2(BLK) φ3x8 N09-6214-05 N80-3008-46 φ3x10...
  • Page 40 GEAR FPC2 J84-0156-04 FLEXIBLE PRINTED WIRING BOARD u163 D13-2277-04 GEAR D13-2278-04 GEAR K24-4007-04 KNOB (OPEN) D13-2289-03 RACK (GEAR) K24-4106-03 KNOB (ATT) K24-4167-03 KNOB (SRC) K : KDC-X979 E1 : KDC-PSW9527 E2 : KDC-W9027 M1 : KDC-9026R Indicates safety critical components.
  • Page 41 RECTANGULAR RECEPTACLE L78-0868-05 RESONATOR (5.00MHZ) u163 FPC3 J84-0154-05 FLEXIBLE PRINTED WIRING BOARD R90-1022-05 MULTI-COMP 470 X2 RK74HB1J471J CHIP-COM 470 J 1/16W R90-1022-05 MULTI-COMP 470 X2 K : KDC-X979 E1 : KDC-PSW9527 E2 : KDC-W9027 M1 : KDC-9026R Indicates safety critical components.
  • Page 42 J 1/10W R37,38 RK73GB2A274J CHIP R 270K J 1/10W RK73GB2A103J CHIP R J 1/10W RK73GB2A223J CHIP R J 1/10W RK73GB2A332J CHIP R 3.3K J 1/10W K : KDC-X979 E1 : KDC-PSW9527 E2 : KDC-W9027 M1 : KDC-9026R Indicates safety critical components.
  • Page 43 CHIP C 22PF RK73GB2A121J CHIP R J 1/10W CK73GB1H103K CHIP C 0.010UF K RK73GB2A241J CHIP R J 1/10W R9-12 RK73GB2A103J CHIP R J 1/10W K : KDC-X979 E1 : KDC-PSW9527 E2 : KDC-W9027 M1 : KDC-9026R Indicates safety critical components.
  • Page 44 C107 CK73GB1H103K CHIP C 0.010UF K IC10 NJM4580V-LF ANALOGUE IC C109 CK73GB1H102K CHIP C 1000PF DTA143XUA DIGITAL TRANSISTOR C110,111 CK73GB1H103K CHIP C 0.010UF K K : KDC-X979 E1 : KDC-PSW9527 E2 : KDC-W9027 M1 : KDC-9026R Indicates safety critical components.
  • Page 45 J 1/10W C603 CK73GB1H103K CHIP C 0.010UF K RK73GB2A103J CHIP R J 1/10W C701 CK73GB1A474K CHIP C 0.47UF R26,27 RK73GB2A913J CHIP R J 1/10W K : KDC-X979 E1 : KDC-PSW9527 E2 : KDC-W9027 M1 : KDC-9026R Indicates safety critical components.
  • Page 46 CHIP R 100K J 1/10W R262 RK73EB2E4R7J CHIP R J 1/4W R152,153 RK73GB2A222J CHIP R 2.2K J 1/10W R263,264 RK73EB2E100J CHIP R J 1/4W K : KDC-X979 E1 : KDC-PSW9527 E2 : KDC-W9027 M1 : KDC-9026R Indicates safety critical components.
  • Page 47 DIGITAL TRANSISTOR u163 MA142WA DIODE 2SB1240 TRANSISTOR D201,202 RD6.8M (B2) ZENER DIODE DTA123JK DIGITAL TRANSISTOR KRA105S DIGITAL TRANSISTOR D203 RD6.8MW ZENER DIODE DTC144EUA DIGITAL TRANSISTOR K : KDC-X979 E1 : KDC-PSW9527 E2 : KDC-W9027 M1 : KDC-9026R Indicates safety critical components.
  • Page 48 CK73GB1H103K CHIP C 0.010UF K R87,88 RK73GB2A103J CHIP R J 1/10W KM1E1 C141 CD04AT1C101M ELECTRO 100UF 16WV R89,90 RK73GB2A151J CHIP R J 1/10W KM1E1 K : KDC-X979 E1 : KDC-PSW9527 E2 : KDC-W9027 M1 : KDC-9026R Indicates safety critical components.
  • Page 49 D13-2305-04 GEAR D13-2306-04 GEAR D13-2308-04 GEAR D13-2309-04 GEAR D13-2316-04 GEAR ASSY D14-0788-04 ROLLER D21-2433-04 SHAFT u163 D39-0259-05 DAMPER E39-0556-05 LEAD WIRE E39-0602-05 FLAT CABLE K : KDC-X979 E1 : KDC-PSW9527 E2 : KDC-W9027 M1 : KDC-9026R Indicates safety critical components.
  • Page 50 Full Bandwidth Power (at less than 1% THD) ...... 22W x 4 Maximum Power ..............50W x 4 KDC-PSW9527/W9027 : PWR DIN45324, +B=14.4V ..30W x 4 TONE KDC-9026R : Full Bandwidth Power (at less than 1%THD) ..22W x 4 Bass ..............60Hz~400Hz±9dB Middle ............. 500Hz~3.15kHz±9dB TONE Treble ..............

This manual is also suitable for:

Kdc-psw9527Kdc-x979Kdc-w9027