Kenwood KDC-3028, Service Manual

Page 1: ...UTCHEON B07 xxxx xx PLASTIC CABINET ASSY A02 2743 03 MOUNTING HARDWARE R J22 0259 04 MOUNTING HARDWARE L J22 0258 04 DISP DISP C S FF FF MENU MENU VOL VOL AUD AUD SET SETUP UP SCRL AME AUTO ATT SCAN RDM REP M RDM KDC 3028 FF FF MENU MENU VOL VOL AUD AUD SET SETUP UP SCRL AME AUTO SCAN RDM REP M RDM DISP DISP C S KDC 328 ATT PANEL ASSY KDC 328 A64 3486 12 Depends on the model Refer to the parts lis...

Page 2: ...ODER RDS Q152 ILLUMI SW KEY EJECT ILLUMI EJECT Q53 Q52 Q51 OEM Q156 S152 ELECTRIC UNIT X34 SWITCH UNIT X16 7 VREF L ch R ch A GND A8V D GND BU5V LOE LIM SW 12EJE SW LOS SW S7 5V LO EJ MOTOR S GND VREF VREF 2 2 4 DRV MUTE MUTE DOUT DATA 4 2 CLK MSTOP MRST MUTE L MUTE R 2 2 H L 12 5 2 4 3 20 21 13 15 1 14 9 7 6 8 18 12 11 10 22 19 E F A C B TR COIL FO COIL APC SERVO u COM IC2 Q1 16 934MHz CLOCK X1 D...

Page 3: ...W ON when the base goes L Q330 Q351 Q352 MUTE DRIVER ON when the base goes L Q351 Lch PREOUT MUTE SW Audio preout is muted when the base goes H Q352 Rch PREOUT MUTE SW Audio preout is muted when the base goes H Q501 AM RF AMPLIFIER Adjusts for Gain CD PLAYER UNIT X32 5750 00 Ref No Application Function Operation Condition Generation of RF signal based on the signals from the APC circuit and pickup...

Page 4: ...er SWITCH UNIT X16 2910 11 Ref No Application Function Operation Condition IC1 VFD DRIVER IC2 REMOTE CONTROL Q4 SW 5V The power supply of IC2 turns on when Q4 s base goes L Q10 RED LED SW RED LED turns on when Q10 s base goes H DAUGHTER UNIT X89 2690 10 Ref No Application Function Operation Condition Q221 222 2 PREOUT MUTE ON when the base goes H Q225 2 PREOUT MUTE ON when the base goes H www xiao...

Page 5: ...PS1 3 Hi Z PS2 1 2 Hi Z TUN DATA CLK Hi Z 21 TUN SD I Tuner search stop input H Station exists L Station does not exist 22 LX RST O Hard reset to slave unit H Reset L Normal condition 23 LX CON O Start up request to slave unit H Slave unit ON L Slave unit OFF 24 LX REQ M O Communication request to slave unit 25 AUD SDA I O Tuner volume I2C data input and output 26 AUD SCL I O Tuner volume I2C cloc...

Page 6: ...tection 55 CD SDA I O CD mecha I2C data input and output 56 OEM DISP CE I O External display chip enable External display 57 OEM DISP CLK I O External display clock External display 58 OEM DISP DATA I O External display chip data External display LED ON H LED OFF L 59 EJECT ILLUMI O Eject illumination control LED ON when FLIP DOWN DET is H and PANEL DET is L LED blinks when FLIP DOWN DET is H and ...

Page 7: ... Emphasis 75µS POWER SUPPLY IC IC3 CONTROL SW1 Pin No 10 PS1 1 PS1 2 PS1 3 AUDIO P CON P ANT L L L OFF OFF OFF H L L ON OFF OFF H H L ON ON OFF H H H ON ON ON SW2 Pin No 11 PS2 1 PS2 2 ILLUMI FM B AM B L L OFF OFF OFF H L ON ON OFF H H ON ON ON CD MECHA CONTROL OPERATION CD LOEJ CD MOTOR CD MECHA OPERATION L H Load H H Eject Hi Z L Stop Hi Z H Brake www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 ...

Page 8: ...r for DSL and bias output for ARF 16 ARF I RF signal input 17 RFSW I DSL circuit time constant switch 18 PLLF I O Loup filter for PLL 19 PLLF2 I O Loup filter character switch for PLL 20 IREF I Reference current input 21 RFENV I RF envelope signal input 22 TRCRS I Tracking cross signal input 23 TE I Tracking error signal input 24 FE I Focusing error signal input 25 AVDD2 Power supply for analog ci...

Page 9: ...OCD CLK 65 MSTOP I Standby detection 66 DATA I O I2C bus data line Communication line to system µ com During serial writer is connected 67 SBIO I Data input During serial writer is connected 68 CLK I O I2C bus clock line Communication line to system µ com During serial writer is connected 69 TX O Digital audio interface signal output 70 NC No connection 71 XSEL 72 MCNT I Loading control Eject cont...

Page 10: ...display is cleared by pressing the key for more than 2 seconds PRESET When pressed for less than 1 second CD EJECT 5 key number display Display EJC x x x x x MAX 60 000 times The display is cleared by pressing the key for more than 2 seconds PRESET When pressed for less than 1 second Panel open 6 key close number display Display PNL x x x x x MAX 600 000 times The display is cleared by pressing th...

Page 11: ...e Confirmation mode While depressing PRESET 3 key and PRESET 6 key simultaneously press on the RESET button Display Detected DC _ ERR _ _ Not detected DC _ OK _ _ _ By pressing AUTO or TI key while DC _ ERR _ _ is being displayed detection status is cleared This will result in the display of DC _ OK _ _ _ Release Method Press RESET button Mechanism memory clear confirmation mode Confirmation mode ...

Page 12: ...MIX 2nd AM MIX ADJUSTMENT ADJUSTMENT POINT L508 1st AM MIX L509 2nd AM MIX VOLTAGE VALUE CHECK POINT S METER check land X34 Adjust so that S METER voltage value becomes maximum SG setting FREQUENCY MODULATION ANTENNA INPUT 1000kHz OFF 35dBµV EMF FM ANTENNA ADJUSTMENT ADJUSTMENT POINT L518 VOLTAGE VALUE CHECK POINT S METER check land X34 Adjust so that S METER voltage value becomes maximum SG setti...

Page 13: ...E B E B 80 1 20 21 40 41 60 61 KI5 KS1 KS2 KI1 KI2 SW5V KS4 ILL D GND PAN5V INH ILL B CW RST CLK DI CE FL B KI3 CNDET CCW GND ESD DO REMO KI4 KS3 1 15 2 14 D110 Q4 Q10 Q11 D104 D103 D105 D101 D108 D107 D106 D109 J1 IC1 SWITCH UNIT X16 2910 11 J76 0040 32 X16 2910 11 Ref No Address IC1 4D Q4 4D Q10 3D X16 2910 11 Ref No Address IC2 2A PC BOARD COMPONENT SIDE VIEW FOIL SIDE VIEW Refer to the schemat...

Page 14: ...339 W3 R544 W308 R597 W801 W317 X2 X501 W351 W352 W377 W379 W381 W362 W357 W383 W375 W368 W335 W373 W312 W367 W318 W302 W304 W305 W307 W309 W314 W311 R81 W382 W349 W321 W346 W319 W371 W251 W372 W426 R313 W370 W328 W339 W365 W833 W836 D301 D302 D303 D304 D305 D306 J2 J5 J6 P1 D203 D259 D260 D166 J4 WH1 S152 WH2 IC4 IC15 ELECTRIC UNIT X34 3390 1x J76 0075 12 PC BOARD COMPONENT SIDE VIEW www xiaoyu16...

Page 15: ...4 W418 W405 W406 W416 W385 W390 W377 W379 W381 W387 W383 W393 W391 W413 W414 W409 W415 W417 W404 W421 W422 C119 L101 W395 W411 W410 W407 W412 W397 W396 W373 W394 W420 W399 R81 W382 W386 W371 W372 R313 W370 W384 L62 D57 D71 J1 D52 D54 Q72 Q73 D254 D73 CN2 S151 IC3 IC9 X34 3390 1x Ref No Address IC3 4M IC4 2J IC15 6H Q72 3M Q73 3M www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2...

Page 16: ...370 R371 R431 R432 R433 R437 R438 R439 R450 R451 R452 R457 R470 TH1 W252 W71 W52 W56 W59 W60 R114 W99 W63 W57 W66 W62 W65 W64 W73 R480 W53 W51 R253 R151 W72 W96 W97 W78 W91 W83 W82 R131 R132 R133 R134 R135 R136 R137 R138 R139 R140 R141 C52 R63 R363 C153 R C422 W102 W103 L301 B E B E B E E B B E B E B E B E 1 4 8 5 9 16 8 1 C C E E B E E C C B 21 20 1 41 60 40 100 61 4 3 2 1 Q54 D72 D91 D75 D251 D2...

Page 17: ... R310 R311 R332 R435 R436 R501 R502 R503 R505 R507 R520 R521 R522 R543 R545 R546 R561 R566 R567 R589 R590 SD S METR TUNOUT R591 R592 R603 R594 R602 W252 L600 W98 C602 W506 W804 W803 W812 W814 C610 R599 W604 W611 W805 W605 W802 W826 C624 R331 W75 R253 W72 W808 W78 W93 C552 W823 W76 W79 W810 W806 C625 W831 R562 L602 R100 C628 W832 L601 C626 W827 C627 C632 VT W838 L604 L605 W834 W835 B E B E B B E B ...

Page 18: ...5 C76 CP1 CP2 R9 R10 R31 R36 R37 R39 R40 R41 R42 R46 R47 R49 R50 R53 R81 R82 R83 R84 R85 R86 R87 R88 X1 1 4 8 5 1 20 21 40 41 60 61 80 E B D3 Q6 S1 S2 S3 S4 IC2 IC4 CD PLAYER UNIT X32 5750 00 J76 0059 12 X32 5750 00 Ref No Address IC2 4AC IC4 2AC Q6 5AB 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...

Page 19: ... PON 1 GND IOP RF F ARF E D ARF 16 PD BU 5V IOP TE SBIO RFENV TRCRS OFT BDO PWM FE B TE TBAL LDON A TE VDET LD K24 24 SPDL SPDL A GND Lch A 8V Rch SPDL S 7 5V S GND MOTOR LO EJ 8EJE GND SLED OUT LOAD SLED IN EJECT TRK IN TRK OUT FCS DOWN FCS UP D GND B C A VR VCC MUTEL MUTER 12EJE D OUT LOS LOE LIM 1 CLK DATA LDCNT MRST MSTOP NRFDET GCTL TRK DRVMUTE AA 1 15 16 30 1 16 32 17 Vref Vref Vref 2 E B E ...

Page 20: ...505 4 7u16 C502 L502 33uH 1500P R501 6 8K 6 8uH R502 2 2K L518 100P L521 10NH C604 C518 C520 1 C517 0 47 C606 C605 L506 100P R503 2 2K C507 22u10 C506 1K 0 68 C510 100P C509 68P R504 4 7 C508 22u10 1K C602 150P L600 TP506 L4 R505 L503 1000uH R594 10 R605 10 100uH TP507 1K R172 TP345 C581 VCCIF1 IF1AMP1OUT IF1REF IF1AMP1IN GNDIF1 IF1AGCIN FSTC AMAGC2TC MIX1OUT2 C519 1 0 47 C531 1 R603 56 C514 GNDRF...

Page 21: ...6 R312 100K R313 CD MUTE L 14 CD SDA CD LOS SW CD DISC12 23 D OUT CD SCL 21 CD MUTE R AUDIO B GND 17 Lch 19 Rch 15 20 24 22 TP351 TP353 TP352 18 16 TP356 TP355 TP354 TP358 TP357 CD MSTOP CD MRST 1 13 12 TP360 TP359 TP362 TP361 TP363 0 47u50 470 470 R352 2 2K R351 2 2K R370 4 7K 0 47u50 R356 1K R355 1K R353 1K CD LOS SW 54 53 52 51 50 49 48 47 46 45 44 43 CD LOEJ CD LOE LIM SW CD MSTOP CD MUTE KEY ...

Page 22: ...K OEM DISP CE CD SDA EJECT ILLUMI 61 PON FL REMOTE 62 63 64 C411 R441 47K 2 2K 100K R480 R96 27K R100 2 7K C97 22u16 OUT VCC 1K R97 3 3K NC GND CTL 5 3 1 R98 C96 0 47u50 4 2 R81 10K DC ERR LINE MUTE ROTARY CW AVSS TUN TYPE1 TUN TYPE2 AVREF1 VFD DATAF VFD DATAS VFD CLK XT1 LX REQ S X2 VSS0 VDD1 65 66 67 68 X1 TEST XT2 69 70 71 72 RDS NOISE TUN SMETER TYPE 2 VDD0 AVDD TYPE 3 73 74 75 76 TYPE 1 77 78...

Page 23: ... 9 10 8 6 7 14 12 13 P ANT 5 3 4 L51 140uH FUSE F1 10A F52 0006 05 15 16 GND 2 ACC 1 B U C51 TP10 TP16 TP9 41 40 38 39 42 15 L 22 17 18 16 2 66 R301 B 5V 8V SERVO B FL B 3300u16 TP15 TP12 TP13 TP14 TP6 TP7 TP8 TP11 TP2 TP3 TP4 TP5 TP1 P ANT P CON PHONE ACC BU Q74 47K R94 VOS SWOUT 220uH 47K W411 L62 2 4 R91 VIN ON OFF GND 3 5 1 C93 220u16 R92 0 22 C95 47K 100u25 100u25 C92 C91 TP73 TP72 TP71 TP25 ...

Page 24: ... G2 S43 S51 S52 S49 S50 S46 S47 S48 S45 S44 S42 S41 S38 S39 S37 S32 S33 S35 S36 S27 S28 S29 S30 S31 S22 S23 S24 S25 S26 S17 S18 S19 S20 S21 KS4 S4 KS3 KS2 KS1 S2 S3 S8 S5 S6 S7 S9 S10 S11 S15 S12 S13 S14 S16 TP38 TP39 TP36 TP37 2 2 C8 Q4 ILL B FL B 4 7K R9 0 01 C10 P16 P15 P17 P18 P19 58 P24 47 45 44 46 P21 P20 P22 50 48 49 P23 1GB 52 51 53 P25 3G P26 54 55 57 56 3G P27 P29 P28 61 59 60 P31 P30 P3...

Page 25: ... P49 18 P46 19 21 20 P47 22 P48 P50 23 S46 S48 P3 P2 P1 P51 1GA YES YES YES C D102 YES YES YES YES YES Q10 YES YES Q11 YES YES YES YES YES R8 YES YES YES YES YES YES R58 R59 P1 KDC 3028 328 2 2 ED1 ANODE CONNECTION 1GA 2G 1GA S4 S2 S1 S3 S5 S10 col3 col4 col2 2a 3a P1 P2 P3 P4 P5 P6 P7 P8 P9 P10 P11 P12 P13 P14 P15 P16 P17 P18 P19 P20 1d 1n 1p 1r 1e 1c 1g 1m 1f 1b 1k 1j 1h 1a d e c g f b a S1 S2 S...

Page 26: ...OUTL DVSS3 CSEL 30 29 AVDD2 AVSS1 OUTR AVDD1 27 25 26 TE FE 23 24 22 12 FBAL TVD SPL NC PWM TBAL 1 2 3 4 5 NRFDET OFT BDO LDON DSLB DVDD1 9 6 7 8 10 11 PLLF2 DVSS1 AVSS2 DSLF ARF RFSW PLLF 13 14 15 16 17 18 IREF RFENV 21 19 20 C101 1000P 1000P C102 C34 0 1 C33 0 1 C32 0 1 C48 6800P C50 4700P 4 L R 5 65 63 61 62 66 68 29 27 L R 27 29 A TE TRCRS FE RFENV 61 62 63 66 68 65 0 1 C47 0 1 C46 79 80 27K R...

Page 27: ...3300P C11 6800P PD LD 1 2 C7 0 1 3 3K R6 RF R5 3 3K C1 10 R14 100K C2 2 2 18 19 13 12 SPDL SPDL C45 0 1 C44 1000P C43 2200P R39 100K 820 R40 0 047 C42 BDO OFT NRFDET 9 7 8 4 7K CP4 1 8K CP3 16 TRK OUT TRK IN 14 15 FCS UP FCS DOWN 16 17 SLED IN EJECT LOAD SLED OUT 12 13 18 19 5 4 1 80 1 2 8 7 9 R7 3 6K 2P C5 ARF 1 C8 4700P C9 R13 240K C18 0 1 C17 0 1 R3 5 6K R2 5 6K 6 5 4 F E B CD A 6 5 100K R10 F ...

Page 28: ...FPC1 E A B C E F G H J K N09 4460 05 N09 4472 15 N09 6004 05 N09 6007 05 N09 6051 05 N19 2163 04 N39 2020 46 N09 6108 05 N09 6155 05 φ2x8 M1 7x8 0 M1 7x2 5 M2x2 φ2x5 BLK 1 6 WASHER M2x2 M2x3 5 φ2x6 X32 8 809 5 Cx2 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 Q...

Page 29: ...1 272 218 276 277 708 271 PA1 270 263 233 269 205 704 E F 224 258 225 229 226 232 253 221 222 244 255 262 203 254 223 256 267 257 786 Bx2 Bx2 Lx2 FC1 K 788 J G G Kx2 DME1 X34 220x2 211 264 201 282 266 206 243x2 235 C Cx2 265 784x2 RC1 283 DC1 261 251 X34 795 Depends on the model Refer to the parts list 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 ...

Page 30: ... 1C J22 0258 04 MOUNTING HARDWARE L 266 1C J22 0259 04 MOUNTING HARDWARE R 267 2C K24 4282 04 PUSH KNOB EJECT 269 3C K24 4285 04 PUSH KNOB RELEASE 270 3C K25 1692 03 PUSH KNOB Q SRC 1 2 K3 270 3C K25 1755 03 PUSH KNOB Q SRC 1 2 K2 271 3C K25 1694 03 PUSH KNOB 3 4 5 6 K3 271 3C K25 1756 03 PUSH KNOB 3 4 5 6 K2 272 3C K29 7132 03 KNOB ASSY VOL 276 3C K29 7139 03 KEY TOP FM AM 277 3C K29 7141 03 KNOB...

Page 31: ...LE CONNECTOR X1 L78 0851 05 RESONATOR 16 934MHZ CP1 RK74GA1J101J CHIP COM 100 J 1 16W CP2 RK74GB1J101J CHIP COM 100 J 1 16W CP3 RK74GB1J182J CHIP COM 1 8K J 1 16W CP4 RK74GB1J472J CHIP COM 4 7K J 1 16W CP5 RK74GB1J104J CHIP COM 100K J 1 16W R1 RK73GB2A910J CHIP R 91 J 1 10W R2 3 RK73GB2A562J CHIP R 5 6K J 1 10W R4 RK73FB2B100J CHIP R 10 J 1 8W R5 6 RK73GB2A332J CHIP R 3 3K J 1 10W R7 RK73GB2A362J ...

Page 32: ...7M ELECTRO 4 7UF 16WV C506 CK73GB1A684K CHIP C 0 68UF K C507 508 CD04AT1A220M ELECTRO 22UF 10WV C509 CC73GCH1H680J CHIP C 68PF J C510 CC73GCH1H101J CHIP C 100PF J C511 CK73GB1H103K CHIP C 0 010UF K C512 CD04AT1C100M ELECTRO 10UF 16WV C513 514 CK73GB1H103K CHIP C 0 010UF K C515 CD04AT1H010M ELECTRO 1UF 50WV C516 CC73GCH1H100D CHIP C 10PF D C517 518 CK73GB1A105K CHIP C 1 0UF K C519 520 CK73GB1A474K ...

Page 33: ...K73FB2B203J CHIP R 20K J 1 8W R55 56 RK73GB2A103J CHIP R 10K J 1 10W R57 RK73GB2A223J CHIP R 22K J 1 10W R58 RD14DB2H332J SMALL RD 3 3K J 1 2W R59 RD14BB2C333J RD 33K J 1 6W R60 RK73GB2A103J CHIP R 10K J 1 10W R61 RK73GB2A223J CHIP R 22K J 1 10W R62 RK73GB2A473J CHIP R 47K J 1 10W R63 RK73GB2A562J CHIP R 5 6K J 1 10W R72 73 RD14BB2C472J RD 4 7K J 1 6W R75 78 RK73GB2A103J CHIP R 10K J 1 10W R81 RD1...

Page 34: ... R 4 7K J 1 10W R562 RK73GB2A106J CHIP R 10M J 1 10W R565 RK73GB2A394J CHIP R 390K J 1 10W R566 567 RK73GB2A102J CHIP R 1 0K J 1 10W R589 RK73GB2A473J CHIP R 47K J 1 10W R590 RK73GB2A103J CHIP R 10K J 1 10W R591 RK73GB2A513J CHIP R 51K J 1 10W R592 RK73GB2A223J CHIP R 22K J 1 10W R594 RK73EB2E100J CHIP R 10 J 1 4W R596 598 RD14BB2C100J RD 10 J 1 6W R599 RK73GB2A220J CHIP R 22 J 1 10W R600 RD14BB2C...

Page 35: ...ANSISTOR Q152 2SA1577 TRANSISTOR Q153 DTC114YUA DIGITAL TRANSISTOR Q153 KRC407 P DIGITAL TRANSISTOR Q153 RT1N144M DIGITAL TRANSISTOR Q156 2SC4081 TRANSISTOR Q252 KTA2014P Y GR TRANSISTOR Q252 2SA1576A TRANSISTOR Q252 2SA1603A TRANSISTOR Q330 DTA124EUA DIGITAL TRANSISTOR Q330 KRA303 P DIGITAL TRANSISTOR Q330 RT1P241M DIGITAL TRANSISTOR Q351 352 DTC143TUA DIGITAL TRANSISTOR Q351 352 KRC410 P DIGITAL...

Page 36: ...22 MOUNTING HARDWARE 53 1B J21 9678 13 MOUNTING HARDWARE 55 1A J90 1001 11 GUIDE 56 1B J90 1023 03 GUIDE DFPC1 3A J84 0141 05 FLEXIBLE PRINTED WIRING BOARD A 2B N09 4460 05 TAPTITE SCREW OVAL P TAPTIT B 1B N09 4472 15 MACHINE SCREW M1 7X8 0 C 2B N09 6004 05 MACHINE SCREW M1 7X2 5 IB L E 2B N09 6007 05 MACHINE SCREW PAN M2X2 F 1A N09 6051 05 TAPTITE SCREW BIND P 2X5 G 2A N19 2163 04 FLAT WASHER H 1...

Page 37: ... 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 2...

Page 38: ...sponse 10Hz 20kHz 1dB Total Harmonic Distortion 0 01 1kHz S N Ratio 93dB 1kHz Dynamic Range 93dB Channel Separation 85dB Preout Level Load 2000mV 10kΩ CD CD CH Preout Impedance 600Ω Amplifier Maximum Power 50W x 4 Full Bandwidth Power at less than 1 THD 22W x 4 Tone Bass 100Hz 10dB Middle 1kHz 10dB Treble 10kHz 10dB General Operating Voltage 11V 16V allowable 14 4V Current Consumption 10A Installa...