Kenwood KDC-C521FM - CD Changer With RF Modulator Service Manual Download

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CD AUTO CHANGER

KDC-C471FM
KDC-C521FM

SERVICE MANUAL

Size AAA battery
(Not supplied)

(E type only)

Remote controller assy
(A70-2051-05) (RC-535) : KDC-C521FM
(A70-2052-05) (RC-525) : KDC-C471FM

Velcro
(W01-1633-08)

Unit holder
(J19-7009-08)

Screw
(N99-1755-08) x2

Antenna adaptor
(T90-0512-05)

Antenna adaptor
(T90-0521-05)

COMPACT DISC AUTO CHANGER KDC-C521FM

NEW ANTI VIBRATION MECHANISM

DISC

COMPACT

DIGITAL AUDIO

CD-R/RW

1BIT

4D/A CONVER

COMPACT DISC AUTO CHANGER KDC-C471FM

NEW ANTI VIBRATION MECHANISM

DISC

COMPACT

DIGITAL AUDIO

CD-R/RW

1BIT 4D/A CONVERTER

Holder assy
(J19-5146-02) : KDC-C521FM
(J19-5149-02) : KDC-C471FM

Tray
(J99-0614-01)

Cord with plug (5m)
(E30-4711-05)

Bracket
(J19-5018-03) : KDC-C521FM
(J19-5020-03) : KDC-C471FM

Screw set
(N99-1645-15)

Control unit
(Display unit)

RF Modulator

Except KDC-C471FM (K type)

KDC-C521FM

KDC-C471FM

Bracket
(J19-5019-03) : KDC-C521FM
(J19-5021-03) : KDC-C471FM

When transporting these models, always attach CAUTION CARD and STEPPED SCREW (for transportation).

www. xiaoyu163. com

QQ 376315150

TEL 13942296513

TEL 13942296513 QQ 376315150 892498299

Summary of Contents for KDC-C521FM - CD Changer With RF Modulator

Page 1: ...GER KDC C471FM NEW ANTI VIBRATION MECHANISM 6 DISC COMPACT DIGITAL AUDIO CD R RW 1BIT 4D A CONVERTER Holder assy J19 5146 02 KDC C521FM J19 5149 02 KDC C471FM Tray J99 0614 01 Cord with plug 5m E30 4711 05 Bracket J19 5018 03 KDC C521FM J19 5020 03 KDC C471FM Screw set N99 1645 15 Control unit Display unit RF Modulator Except KDC C471FM K type KDC C521FM KDC C471FM Bracket J19 5019 03 KDC C521FM J...

Page 2: ...RST AUDIO OUT 5 5VREG IC4 DA5V S8V 3 HOT IC9 RESET 7V 9V 5V Q21 22 M5V1 M5V2 SW5V S3 S2 S1 SW5V M M DC MOTOR DRIVER ELEVATOR M AVR SA5V Q9 D A CONVERTER SCF MUTE 0bit Q6 7 MUTE Q4 5 8 SD5V F E A D B PD M5V2 AVR CH MUTE CH CON 5L I F IC11 COMM SW S4 to HEAD UNIT ASSY X13 X32 X13 X92 PICKUP www x ia o y u 1 6 3 c o m QQ 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 TEL 1 39 4 2 2 9 65 1 3 9 9 2 8 9 4 2 9 8 0 ...

Page 3: ...DIAGRAM FM MODULATOR www x ia o y u 1 6 3 c o m QQ 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 TEL 1 39 4 2 2 9 65 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 ...

Page 4: ...s activated an emitter goes Hi and Q4 outputs Hi Q5 0 bit mute R CH When 0 bit mute is activated an emitter goes Hi and Q5 outputs Hi Q6 Mute SW L CH When 0 bit mute or A mute drive is activated a base goes Hi and L channel audio signal is muted Q7 Mute SW R CH When 0 bit mute or A mute drive is activated a base goes Hi and R channel audio signal is muted Q8 A mute drive When audio mute of IC7 is ...

Page 5: ...o Application Function Operation Condition Compatibility IC101 102 GND Isolation AMP IC103 Low Pass Filter IC301 FM Stereo Modulator IC302 1 2 Vcc Driver ALC Detection Amp IC501 System µcom IC601 6V AVR Q102 L R Mixer SW D cont off L D cont on H Q103 203 ALC Control SW Q301 Composite Buffer Q303 304 Level Control SW LEVEL 1 2 L LEVEL 3 4 H LEVEL 2 4 L LEVEL 1 3 H Q305 Audio Mute Power on L Power o...

Page 6: ...k data 21 CH CON I Changer control input Hi Standby mode Lo Operation mode 22 BUDET I Momentary power down detection input Hi When momentary power down detected or BU OFF Lo BU ON 23 AVDD A D converter positive power supply connection terminal Connected to D 5V lines 24 AVREF0 I A D converter reference voltage input Connected to PON 5V lines 25 HOT I Rise in temperature detection input 26 LPS I LP...

Page 7: ...1 VDD Positive power supply connection terminal Connected to D 5V lines 82 PUSEL I Pickup type select terminal Pull up to D 5V lines 83 REQH I Communication request from H U Lo Communication requested 84 SPLO O Spindle Loading control terminal 85 SPLO O Spindle Loading control terminal 86 ELV O Mechanism deck ascent descent terminal 87 ELV O Mechanism deck ascent descent terminal 88 SIM1 I Destina...

Page 8: ... 44 PP3 PN0 O GAIN12 1 Modulation output switching L 45 PM3 O SEP ATT When it has GAIN5 output Hi output L 46 52 PM2 PL0 O NC Not used open L 53 PK3 O RELAY Antenna relay control output terminal L 54 PK2 O P on P_ON L 55 PK1 O MUTE Mute output terminal for the Tuner frequency change L 56 INT0 I REMOCON Remote controller signal input 57 60 PJ3 0 O NC Not used open L 61 66 PI1 PH0 I NC Not used pull...

Page 9: ...M Be sure to use the W05 0869 00 when replacing the EEPROM IC8 stores the digital servo data of the pickup servo Therefore if the EEPROM does not store servo data ER ROR76 E 76 will indicate the H U s display section at the moment CD is played Instrument SSG OSC 5MHz AC VOLTMETER PWR SUPPLY H UNIT CD CH RECEIVER ALIGNMENT No ITEM INPUT SETTINGS OUTPUT SETTINGS MODULATOR POINTS ALIGN FOR FIG FREQ L...

Page 10: ...RW X1 FRESET RFCK MIRR PLCK FZC TZC LZM A3T DACO TX HOLD SD5V FBAL TBAL TEVCA RZM TBC RF DAGND DA5V C71 CP3 R99 C70 R126 X2 R127 R76 R134 R123 R122 R102 C22 C11 C10 C19 R11 R12 R13 R14 R152 C6 C9 R5 R59 C5 R7 W6 W5 W7 W4 X1 W2 D9 D8 D10 D11 E B B E Q11 B E Q20 B E Q31 D23 D24 D22 D21 D16 CN1 CN2 D15 CD PLAYER UNIT X32 5470 01 J74 1527 01 D3 Q6 Q7 B E B E Q22 Q16 Q21 E B E B Q18 D7 D12 E B Q17 E B ...

Page 11: ...R149 R150 R75 R74 R121 R71 R21 C21 R138 R136 R140 CP7 CP8 CP14 C67 CP9 R95 R83 R129 R81 R155 R156 R137 R142 TH1 W3 1 4 8 5 D1 Q1 D4 Q4 Q13 Q10 IC8 S2 Q19 D5 Q15 S3 S1 D14 Q5 Q14 Q9 Q30 E B E B B E B E B E E B E B E B E B CD PLAYER UNIT X32 5470 01 J74 1527 01 Refer to the schematic diagram for the values of resistors and capacitors X32 5470 01 Ref No Address IC8 4H Q1 2G Q4 3H Q5 3H Q9 2J Ref No A...

Page 12: ...18 C120 C309 C304 C312 R220 C214 R215 R217 R118 R117 R115 C114 R120 C308 R302 X301 R406 R404 R402 C415 C404 R152 R153 R154 R254 R155 R255 C154 C254 R301 R303 R304 C303 C302 VR301 C153 C253 C405 C402 C401 R116 R108 R112 C107 R113 C108 R110 R210 C207 R212 R208 R209 R327 C208 R213 C209 C212 C218 C220 C301 C112 R109 C109 Q501 STK402 FM MODULATOR UNIT IC501 Q603 SC501 ZD601 Q609 Q608 IC601 D602 Q304 IC...

Page 13: ...2 3 4 5 6 7 PC BOARD FOIL SIDEVIEW FM MODULATOR UNIT www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 ...

Page 14: ...8 R751 B E B E B E R709 R710 R734 C711 R705 R703 C703 R720 C704 R716 C707 R725 R717 C706 R724 R718 C705 R722 R737 R723 R728 R735 R736 C702 R702 R704 R706 D717 D718 D719 D721 IC701 Q703 D722 Q701 D720 Q702 CONTROL UNIT CONTROL UNIT Ref No Address IC701 4Y Q701 6Y Q702 3X Q703 5Y CONTROL UNIT Ref No Address IC702 7V Refer to the schematic diagram for the values of resistors and capacitors www xiaoyu...

Page 15: ... 9840 00 J74 1100 02 W1 W2 1 23 1 16 LIMSW LOESW 8 12SW MGND SP SL SL SP BLACK RED CN1 CN2 SUB CIRCUIT UNIT X16 1010 00 J74 1153 01 S2 S1 FOIL SIDEVIEW Refer to the schematic diagram for the values of resistors and capacitors www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 89...

Page 16: ...IN 10u10 C34 4 7 C52 49 48 7 Lch Rch 2 2 AVREF0 LPS GND 26 24 Q6 7 R121 10K 44 83 8 7V 8 4 12 6 A GND 4 5 CH MUTE CH CON 12 L ch CH CLK 13 DATAC DATAH 10 11 2 3 BU 14 GND 1 REQH R ch REQC 8 9 CH RST 7 7 3 11 6 2 10 5 1 9 13 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 BU 14V BU 14V CH RST R ch A GND L ch CH CON GND GND CH MUTE DATAH DATAC CH CLK REQC REQH NC 1 2 3 4 5 6 7 8 9 10 11 12 13 REQH GND BU14V ...

Page 17: ...SAO COMMSW RESET PACK CH CON BUDET FO GUP EJSW MGSW X1 VSS XT1 XT2 SSTB X2 VDD FOK RST XTALEN TSTB NOR RW 2 1 10 6 4 3 5 8 7 9 14 12 13 16 15 17 20 19 18 22 24 25 23 100 CP12 68 CP15 100K 74 5 6 7 8 SDA SCL TEST VCC 4 3 2 1 GND NC NC NC R81 10K 1K R80 100K CP1 SLNSA SRVSEL SDA 100K CP17 TEST1 TEST2 SEARCH 86 85 84 87 SIM1 1K R101 100K R102 PUSEL R127 100K 100K R134 77 78 ELVADJ AMUTE 2 4 R93 220K ...

Page 18: ...1K C24 1000P 5 7 8 39 37 38 4 Lch Rch C202 0 1 C15 0 1 C301 0 1 22u6 3 C300 C16 0 1 16 93MHz X1 C14 0 1 0 1 C203 R20 100K C201 0 1 49 48 1K CP16 ATEST 46 47 2 45 20 FD TD SPD SLD 12K R26 R25 11K 64 63 62 65 L2 C10 2200P 10K R18 0 01 C12 33K R19 0 01 C13 6800P C11 ARF EFM 10 19 25 23 24 21 22 20 17 18 16 15 14 13 12 11 6 9 7 8 3 4 5 1 2 58 56 57 53 54 55 51 52 66 67 68 64 65 62 63 59 60 61 71 74 75...

Page 19: ... IC11 KDC C520FM J X92 4760 01 X92 4760 00 UNIT No CP10 C73 YES NO X92 4760 01 X92 4760 00 KDC C719 K M E YES NO NO YES YES NO YES NO KDC C519FM K M KDC C521FM K M KDC C719Y E2 X32 5470 01 X32 5470 00 X92 4770 02 X92 4770 00 YES NO NO YES YES NO YES NO KDC C669Y E2 KDC C669 K M E KDC C469FM K E KDC C469Y E2 KDC C469FMA E KDC C471FM K E KDC C469 J K E X32 5470 01 X32 5470 00 YES NO YES NO X92 4770 ...

Page 20: ...2 1 13 12 8 11 7 10 6 9 5 C501 CH DATA C POW 0 047F16 S RE 21 C504 32 31 30 29 28 27 26 25 SC501 24 23 22 VDD 5V LCD DATA IN 39 38 37 36 35 34 33 0 022 39 GAIN4 GAIN5 GAIN6 GAIN7 GAIN8 GAIN2 GAIN3 16 LCD CE LCD RESET LCD CLK 20 19 18 17 LCD DATA OUT CHCLK CH DATA H 15 14 13 12 RE FM IN EO1 9 CHCON REQH 11 10 REQC 8 7 4 6 5 3 2 73 4 5MHz 79 80 1 74 75 76 77 78 EO2 AM IN VSS 33P X501 C502 22P C505 1...

Page 21: ...0u10 C607 1K R613 R614 1K 0 1 C608 4 7K R612 10K R606 R605 10K 10K R604 100u10 C603 4 7K R603 10K R601 1000u16 C602 100uH L601 IN OUT GND 4 7K R602 10K R611 R608 4 7K R607 4 7K 0 1 C604 GND 3 BATT FUSE1 3A 2 ACC FUSE2 3A 1 560 R310 C304 1 5K R302 220u10 45 100 R407 1K R301 R327 4 7 RY401 2 3 2 1 1 33P C419 0 022 C420 C421 470P 0 1 C651 R314 2 2K 22K R321 47u10 C312 C652 1 470 R651 47K R617 470P C4...

Page 22: ...A R71FM KDC C521FM KDC C471FM K M K E K E DESTNATION KDC C521FM KCA R71FM J J 220 150 R705 710 B30 1567 05 716 D704 B30 1690 05 CN701 D717 RESET Q701 GND LINE B LINE IC701 IC702 NJL67H380A LC75808W KTC3875S Q702 Q701 KRA303 B30 1698 05 D704 716 D701 702 KDS122 D717 722 2 3 UNIT SKT401 MODULATOR REMO SENSOR D718 D719 D720 D721 D722 Q703 Q702 SCAN RDM REP SCAN REP RDM Q703 KRA305 B30 1564 05 D703 SW...

Page 23: ... 59 57 S44 S44 S50 S50 S55 S56 S54 S52 S53 S51 53 S54 S56 S55 55 56 54 S51 S52 S53 52 50 51 44 47 S49 S47 S48 S46 S45 46 S47 S49 S48 48 49 S45 S46 45 S37 S37 S42 S43 S41 S39 S40 S38 40 S41 S43 S42 42 43 41 S38 S39 S40 39 37 38 S36 S34 S35 S32 S33 S31 33 S34 S36 S35 35 36 34 S31 S32 S33 32 30 31 24 27 S27 S29 S30 S28 S25 S26 S24 S27 S29 S30 S28 28 29 S24 S25 S26 25 26 25 24 26 30 28 27 29 32 31 33 ...

Page 24: ...46 N09 6108 05 N19 2105 14 N19 2058 04 N19 2080 14 N19 2028 04 54 47 13 12 29 2 3 11 14 31 30 68 75 28 1 73 22 5 55 74 61 59 63 48 46 24 38 58 PU1 FPC1 FPC1 780 772 FC1 FC1 FC2 19 35 36 37 51 53 56 16 50 15 40 772 M3 62 27 17 6 C75 Q15 76 781 X32 X16 69 26 57 25 39 33 34 32 49 4 M2 M1 23 18 EXPLODED VIEW KDC C521FM MECHANISM Parts with the exploded numbers larger than 700 are not supplied www xiao...

Page 25: ...5 N09 4154 05 N09 4181 05 N39 1722 46 N09 6108 05 N19 2105 14 N19 2058 04 N19 2080 14 N19 2028 04 54 47 13 12 29 2 3 11 14 31 30 68 75 28 1 73 22 5 55 74 61 59 63 48 46 24 38 58 PU1 FPC1 FPC1 780 772 FC1 FC1 FC2 19 35 36 37 51 53 56 16 50 15 40 772 M3 62 27 17 6 C75 Q15 76 781 X32 X16 69 26 57 25 39 33 34 32 49 4 M2 M1 23 18 Parts with the exploded numbers larger than 700 are not supplied www xiao...

Page 26: ...2 214 214 227 731 212 207 212 211 205 204 201 206 214 203 213 213 214 BLACK SILVER 221 223 229 222 226x10 215 Parts with the exploded numbers larger than 700 are not supplied www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 ...

Page 27: ...FMM CN701 CONTROL E type only 424 E type only Please cut a tip E E E 401 422x2 414 E 702 A A F F 731 735 Bx2 B 419 420 407 417 417 418 408 411 416 415 415 406 PA1 B C C 403 443 732 444 442 446 441 747 712 E Parts with the exploded numbers larger than 700 are not supplied www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 37631...

Page 28: ...OTECTION BAG 180X300X0 03 H25 1111 04 PROTECTION BAG 280X450X0 03 E1M1 H25 1115 04 PROTECTION BAG KK1 H54 3144 04 ITEM CARTON CASE KE1 H54 3145 04 ITEM CARTON CASE K1 H54 3146 04 ITEM CARTON CASE M1 221 1E J19 5018 03 BRACKET K1M1 221 1E J19 5020 03 BRACKET KE1 222 1E J19 5019 03 BRACKET K1M1 222 1E J19 5021 03 BRACKET KE1 223 1E J19 5146 02 HOLDER ASSY K1M1 223 1E J19 5149 02 HOLDER ASSY KE1 226 ...

Page 29: ...3GB2A912J CHIP R 9 1K J 1 10W R72 73 RK73GB2A101J CHIP R 100 J 1 10W R74 75 RK73GB2A223J CHIP R 22K J 1 10W R76 RK73GB2A104J CHIP R 100K J 1 10W R77 RK73GB2A183J CHIP R 18K J 1 10W R78 RK73GB2A104J CHIP R 100K J 1 10W R79 RK73GB2A332J CHIP R 3 3K J 1 10W R80 RK73GB2A102J CHIP R 1 0K J 1 10W R81 RK73GB2A103J CHIP R 10K J 1 10W R82 84 RK73GB2A102J CHIP R 1 0K J 1 10W R85 87 RK73GB2A104J CHIP R 100K ...

Page 30: ... 04 GEAR K1M1 26 3B D13 2187 04 GEAR K1M1 27 3A D13 2188 04 WORM K1M1 28 2B D13 2092 04 GEAR K1M1 29 2B D13 2093 04 GEAR ASSY K1M1 30 2B D13 2095 04 GEAR K1M1 31 2B D13 2096 04 GEAR K1M1 32 3A D13 2099 04 GEAR K1M1 33 3A D13 2100 04 GEAR K1M1 34 3A D13 2101 04 GEAR K1M1 35 3A D13 2102 04 GEAR K1M1 36 3A D13 2103 04 GEAR K1M1 37 3A D13 2104 04 GEAR K1M1 38 3B D19 0636 04 LEAD SCREW K1M1 39 3A D19 0...

Page 31: ...4 COMPRESSION SPRING KE1 50 3C G01 3040 04 EXTENSION SPRING KE1 51 3C G01 3041 04 EXTENSION SPRING KE1 52 1D G01 3042 04 TORSION COIL SPRING KE1 53 2C G01 3043 04 TORSION COIL SPRING KE1 54 1D G01 3044 04 EXTENSION SPRING KE1 55 2C G01 3046 04 EXTENSION SPRING KE1 56 2C G01 3047 04 EXTENSION SPRING KE1 57 3D G02 1374 04 FLAT SPRING KE1 58 3D G02 1375 03 FLAT SPRING KE1 59 2D G02 1376 03 FLAT SPRIN...

Page 32: ...7UF 50WV C301 CE04DW1E100M ELECTRO 10UF 25WV C302 CC73GCH1H101J CHIP C 100PF J C303 CC73GCH1H150J CHIP C 15PF J C306 CK73GB1E333K CHIP C 0 033UF K C307 CC73GCH1H180J CHIP C 18PF J C308 CC73GCH1H471J CHIP C 470PF J C309 CE04DW1H4R7M ELECTRO 4 7UF 50WV C312 CE04DW1E470M ELECTRO 47UF 25WV C313 CE04DW1A101M ELECTRO 100UF 10WV C314 CC73GCH1H330J CHIP C 33PF J C315 CK73GB1H332K CHIP C 3300PF K C401 CE04...

Page 33: ...05 406 RK73GB2A103J CHIP R 10K J 1 10W R407 RK73GB2A101J CHIP R 100 J 1 10W R411 RK73GB2A153J CHIP R 15K J 1 10W R412 RK73GB2A221J CHIP R 220 J 1 10W R413 RK73GB2A152J CHIP R 1 5K J 1 10W R414 RK73GB2A222J CHIP R 2 2K J 1 10W R451 RK73GB2A391J CHIP R 390 J 1 10W R501 RK73GB2A103J CHIP R 10K J 1 10W R502 503 RK73FB2B103J CHIP R 10K J 1 8W R511 RK73FB2B332J CHIP R 3 3K J 1 8W R512 RK73FB2B102J CHIP ...

Page 34: ...10UF 16WV C711 CK73GB1E223K CHIP C 0 022UF K 446 3G E29 2020 08 CONDUCTIVE RUBBER CN701 E30 6378 08 CORD WITH DIN CONNECTOR R701 703 RK73GB2A331J CHIP R 330 J 1 10W R704 RK73GB2A391J CHIP R 390 J 1 10W R705 710 RK73GB2A221J CHIP R 220 J 1 10W R711 719 RK73GB2A102J CHIP R 1 0K J 1 10W R720 RK73GB2A473J CHIP R 47K J 1 10W R722 726 RK73GB2A472J CHIP R 4 7K J 1 10W R727 RK73GB2A473J CHIP R 47K J 1 10W...

Page 35: ...40 80 100 More than 10µF 10 50 20 20 0 Less than 4 7µF 10 75 Voltage rating 2nd word A B C D E F G H J K V 1st word 0 1 0 1 25 1 6 2 0 2 5 3 15 4 0 5 0 6 3 8 0 1 10 12 5 16 20 25 31 5 40 50 63 80 35 2 100 125 160 200 250 315 400 500 630 800 3 1000 1250 1600 2000 2500 2150 4000 5000 6300 8000 CHIP CAPACITORS EX C C 7 3 F S L 1 H 0 0 0 J Refer to the table above 1 2 3 4 5 6 7 1 Type Chip CH RH UJ SL...

Page 36: ...dom Vidhya Building Olympia Rama IV Road Silom Bangrak Bangkok 10500 Thailand KENWOOD ELECTRONICS SINGAPORE PTE LTD 1 Genting Lane 07 00 Kenwood Building Singapore 349544 KENWOOD ELECTRONICS MALAYSIA SDN BHD 4 01 Level 4 Wisma Academy Lot 4A Jalan 19 1 46300 Petaling Jaya Selangor Darul Ehsan Malaysia SPECIFICATIONS Disc section Laser Diode GaAlAs λ 780 nm Digital Filter D A 8 Times Over Sampling ...

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Kenwood KDC-C521FM - CD Changer With RF Modulator, Service Manual

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