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Kenwood KDC-2021SA, Service Manual

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© 2001-12 PRINTED IN JAPAN
B51-7873-00 (N) 1930

CD RECEIVER

KDC-2021SA/SG

SERVICE MANUAL

COMPACT

DIGITAL AUDIO

RDM

LOUD

REP

SCAN

OFF

KDC-2021S

MONO

AME

AUTO

ADJ

CLK

AUD

45Wx4

Panel assy
(A64-2564-02)

DC cord
(E30-4790-05)

Lever
(D10-4589-04)x2

Escutcheon
(B07-3054-02)

The CD mechanism infomation is not in this sarvice manual.
Please, refer to sarvice manual X92-4030-0x (B51-7867-00).

Plastic cabinet assy
(A02-1486-13)

Mounting hardware assy
(J21-9641-13)

Antenna adaptor
(T90-0523-05)

Front glass
(B10-4141-01)

CD mechanism extension cord : W05-0618-00

www. xiaoyu163. com

QQ 376315150

9

9

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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 

Summary of Contents for KDC-2021SA

Page 1: ...02 The CD mechanism infomation is not in this sarvice manual Please refer to sarvice manual X92 4030 0x B51 7867 00 Plastic cabinet assy A02 1486 13 Mounting hardware assy J21 9641 13 Antenna adaptor T90 0523 05 Front glass B10 4141 01 CD mechanism extension cord W05 0618 00 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 3...

Page 2: ...R PLL DATA SD MSDA MSCLK SW2 SW1 SW3 M MUTE RST STOP LO EJ MO SW RST CH CON MUTE DATA C REQ H DATA H CLK REQ C FM AM CD CH AFS NOISE DET LEVEL DATAS MUTE LO DX PLL DATA PLL CLK AFS NOISE S METER SCL SD SDA PLL CE EN2 EN3 EN1 PC DET PA DET CLK DATAL CE REMO PANEL DSI RES SDA SCL P CON P ANT FM B VP2 AM B AUDIO ILLUM BU5V SW1 SW2 203mV 170mV 1200mV 1200mV 382mV K E 382mV J K FM E K J J AM E 1605mV 1...

Page 3: ... L when CH is not available 20 PLL CE O F E chip enable L 21 AFS O Noise detection time constant switching L 22 LO DX O Local seek switching L 23 26 NC O Not used L 27 SD I Station detection Hi Z 28 CH CONT O 5 wire communication CH ON output L L when CH is not available 29 TYPE REF O Destination type and servicing setting 5V output L 30 TYPE2 I Destination type setting Hi Z 31 TYPE1 I Destination...

Page 4: ...supply 74 VDD0 Positive power supply for ports 75 AVREF0 I 5V power supply A D converter reference voltage 76 S METER I S meter input Hi Z 77 PHONE I Navigation muting 2 5V or more Telephone muting 1V or less Hi Z L when TEL is not available 78 NOISE I FM noise detection Hi Z L when RDS is not available 79 NC O Not used L 80 AVCONT O A D reference voltage control L No ITEM INPUT SETTINGS TUNER REC...

Page 5: ...51 W83 C401 R253 W50 R252 W86 W90 W93 W124 R301 C63 W114 W84 R28 R25 R21 R20 R30 R165 R166 R167 R101 R163 R164 R168 R172 R229 R230 R169 R170 R171 X1 X2 W41 W129 R145 W56 R352 R351 R259 R353 R226 R225 W17 R50 L4 L305 L306 L304 L101 L303 L201 C222 C221 C223 C51 C52 C53 C55 C56 C54 C205 C204 C353 C257 C351 C224 C258 C203 C255 C101 C304 C201 C256 C57 C301 C306 W6 W5 W51 W57 W60 W45 W48 W25 W35 W31 W23...

Page 6: ...h REQ C 8 9 RST 7 7 3 11 6 2 10 5 1 9 DATA H REQ C CLK Lch 11 13 13 10 9 6 12 3 7 5 2 4 1 8 R404 100 R405 4 7K R406 4 7K R407 4 7K 4 7 10 R403 R402 R409 4 7K R401 10 R410 100 R411 100 R408 4 7K 100u10 1u50 1u50 7 5 19 28 16 63 18 17 10u16 C224 270 R224 100 R232 30K R228 100 R231 30K R227 10u16 C223 270 R223 RL RR 3 4 2 1 12 11 VDD 13 14 VSS 6 5 7 9 10 8 100K R415 0 01 C404 C40 0 01 R264 10u16 C53 ...

Page 7: ...3 265 266 D30 MA4068 N M 1SS133 D1 IC12 1N5393G M6 BR24C01AF AM01Z or Q10 20 70 201 2SC4081 or Q51 Q50 Q40 UMC2N 2SA1036K DTA124EUA or 2SD2375 or Q55 Q251 Q223 224 Q102 DTC114YUA or DTC143TUA or DTA114YUA or UN5214 UN5216 UN5114 2SD2396 UN5112 2SD1819A DSM1SD2 or ERA15 02 2 2 X13 J1 D40 50 101 103 104 251 253 D102 D51 D106 109 403 404 407 409 411 B30 1567 05 MA4062 L MA4082 N L or HZS12A2 D110 HZS...

Page 8: ...06 46 N29 0205 04 FC1 755 753 206 F1 210 702 722 717 743 229 215x2 DC1 201 242 708 728 751 742 X16 704 236 237 235 232 226 233 249 245 246 250 248 218 234 211 238 X16 205 216 213 224 203 214 225 Parts with the exploded numbers larger than 700 are not supplied KDC 2021SA SG 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 376...

Page 9: ...05 LED 1608 PG E7 D1 13 B30 1567 05 LED 1608 RED E6 D17 18 B30 1533 05 LED 1608 PG E7 D17 18 B30 1567 05 LED 1608 RED E6 D19 B30 1633 05 LED WHITE D20 B30 1533 05 LED 1608 PG E7 D20 B30 1567 05 LED 1608 RED E6 ED1 B38 1080 05 LIQUID CRYSTAL C1 CK73GB1H102K CHIP C 1000PF K C2 3 CK73GB1E473K CHIP C 0 047UF K C2 3 CK73GB1H473K CHIP C 0 047UF K C4 CK73GB1H103K CHIP C 0 010UF K C9 CK73GB1H103K CHIP C 0...

Page 10: ... CHIP R 1 5K J 1 8W R58 RK73GB2A472J CHIP R 4 7K J 1 10W R67 RK73GB2A103J CHIP R 10K J 1 10W R71 RK73GB2A823J CHIP R 82K J 1 10W R72 RK73GB2A363J CHIP R 36K J 1 10W R73 RK73GB2A104J CHIP R 100K J 1 10W R103 104 RK73GB2A222J CHIP R 2 2K J 1 10W R105 RK73GB2A471J CHIP R 470 J 1 10W R106 RK73GB2A104J CHIP R 100K J 1 10W R107 108 RK73GB2A222J CHIP R 2 2K J 1 10W R110 RK73GB2A472J CHIP R 4 7K J 1 10W R...

Page 11: ...ODE D110 HZS12A2 ZENER DIODE D201 202 MA4068 N M ZENER DIODE D251 253 1SS133 DIODE IC1 UPD780058GC429 MI COM IC IC2 TDA7407D ANALOGUE IC IC4 TDA7386 ANALOGUE IC IC7 BA4911 V4 ANALOGUE IC IC8 HD74HC27FP MOS IC IC11 S 80835ANNP MOS IC IC12 BR24C01AF MEMORY IC IC12 M24C01 WMN6T MEMORY IC IC12 S 24C01B MEMORY IC Q10 2SC4081 TRANSISTOR Q20 2SC4081 TRANSISTOR Q40 DTA124EUA DIGITAL TRANSISTOR Q50 2SA1036...

Page 12: ...KDC 2021SA SG 15 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 13: ...0320 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 KDC 2021SA SG KDC 2021SA SG FM Frequency Range 87 5MHz 108 0MHz Frequency step 50kHz Usable Sensitivity S N 26dB 0 7µV 75Ω Quieting Sensitivity S N 46dB 1 6µV 75...

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