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CD RECEIVER

KDC-2021SA/SG
SERVICE MANUAL
© 2001-12 PRINTED IN JAPAN B51-7873-00 (N) 1930 The CD mechanism infomation is not in this sarvice manual. Please, refer to sarvice manual X92-4030-0x (B51-7867-00). CD mechanism extension cord : W05-0618-00

Panel assy (A64-2564-02)

Front glass (B10-4141-01)

Escutcheon (B07-3054-02)

KDC-2021S

45Wx4

COMPACT DIGITAL AUDIO

MONO LOUD SCAN RDM REP CLK ADJ AUTO AME

OFF

AUD

DC cord (E30-4790-05)

Plastic cabinet assy (A02-1486-13)

Antenna adaptor (T90-0523-05)

Mounting hardware assy (J21-9641-13)

Lever (D10-4589-04)x2

PLL-DATA PLL-CLK PLL-CE

SD S-METER

LO/DX NOISE AFS

SDA SCL

PANEL

DATAS CLK CE DATAL RES

REMO

DSI

2
A8V TUNER FM+B AM+B SW5V
FM DET OUT AM DET OUT J: 382mV K: 382mV E: 203mV 170mV 1200mV 1200mV REQUEST PLL-DATA PLL-CLK PLL-CE LO/DX S-METER SD NOISE DET LEVEL

KDC-2021SA/SG

IC2
FM AM CD CH AFS

PRE MUTE IC4 E-VOL & MPX

FM (J) (K) (E) AM (J) (K) (E) CD.CH

: 1700mV : 1605mV : 1276mV : 561mV : 561mV : 792mV : 3529mV

PRE OUT

POWER IC

SP-OUT MUTE

CD

BLOCK DIAGRAM

SERVO A8V BU5V
MSCLK MSDA SW1 SW2 SW3 M MUTE RST STOP LO/EJ MO SW

IC12
SDA SCL

E2PROM

SW5V

IC1
MUTE

TEL-MUTE ACC DET.

TEL-MUTE ACC

CH
RST REQ C CLK DATA H CH-CON REQ H DATA C MUTE

BU DET. BU5V u-COM
PA DET

BACK-UP ANT-CON DET. P-CON DET. ANT-CONT P-CON

PC DET EN1 EN2 EN3

IC7

POWER SUPPLY
P-CON P.ANT FM+B VP2 AM+B AUDIO ILLUM

BACK UP

BU5V

DSI

BU5V

PAN DET.

MARINE CN.

SERVO

SW14V

IC1 LCD DRIVER With KEY MATRIX PAN5V

PAN5V IC2 REMOTE CONTROL SW5V ILLUM SW SW5V

BU5V SW1 SW2

LCD

KDC-2021SA/SG
MICROCOMPUTER'S TERMINAL DESCRIPTION
SYSTEM MICROCOMPUTER uPD780058GC-XXX (IC1:X25)
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23~26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45,46 47~49 50 51,52 53 Pin Name PANEL 8EJE SW *1 NC AVss L-RST L-CE AVREF1 NC PLL-DATA PLL-CLK L-DATAL L-DATAS L-CLK R-DATA R-QUAL CH-DATAC CH-DATAH CH-CLK CH-REQH PLL-CE AFS LO/DX NC SD CH-CONT TYPE REF TYPE2 TYPE1 TYPE0 Vss1 IC2TYPE1 IC2TYPE0 DATA CLK MUTE P-MUTE SVR P-STBY SW5V B.U-DET ACC-DET NC PS1-0~PS1-2 BEEP PS2-0,PS2-1 DSI I/O I I O O O I I I/O O I O O I I I O I/O O O O O O I O O I I I I I I/O O O O O O O I I O O O O O Panel detection 8 cm disk eject end detection switch Not used GND potential (for A/D and D/A) LCD driver reset LCD driver chip enable 5V power supply (D/A converter reference voltage) Not used F/E (IC3) communication data F/R (IC3) communication clock LCD driver communication data (LCD) LCD driver communication data (SYSTEM) LCD driver communication clock RDS DATA RDS QUAL 5-wire communication data (CH) 5-wire communication data (HEAD) 5-wire communication clock 5-wire CH request (HEAD) F/E chip enable Noise detection time constant switching Local seek switching Not used Station detection 5-wire communication CH ON output Destination type and servicing setting 5V output Destination type setting Destination type setting Destination type setting GND potential (for other parts than ports and analog circuitry) Servicing pin (SEL1), normally "L" Servicing pin (SEL0), normally "L" IC2, CD mechanism and F/E communication data IC2, CD mechanism and F/E communication clock Muting control output PWR IC muting output SVR control output PWR IC standby output SW5 control output B.U. detection ACC detection Not used Power supply IC AUD/P.CON/P.ANT SW Buzzer output Power supply IC ILL/AM/FM SW DSI control output Purpose Hi-Z L, L when the 8 cm CD compatibility is not provided. L H, L when the panel is detached or with 7-segment output. L, L is output when the panel is detached. Hi-Z L L Hi-Z L, L is output when the panel is detached. H, L is output when the panel is detached. Hi-Z, L when RDS is not available. Hi-Z, L when RDS is not available. Hi-Z, L when CH is not available. L, L when CH is not available. Hi-Z, L when CH is not available. H, L when CH is not available. L L L L Hi-Z L, L when CH is not available. L Hi-Z Hi-Z Hi-Z Hi-Z Hi-Z L L L, 15 sec. after power OFF. H, 15 sec. after power OFF. L L "H" in 10 sec. after power OFF. Hi-Z Hi-Z L L L L L, H/L when panel is detached. FIX output is L. Processing in STBY Mode

3

KDC-2021SA/SG
MICROCOMPUTER'S TERMINAL DESCRIPTION / ADJUSTMENT
Pin No. 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 Pin Name LOE/LIM SW MOSW LO/EJ M-STOP M-RST M-MUTE RESET REMO R-CLK CH-REQC LOS SW KEY-REQ 12EJE SW Vss0 VDD1 X2 X1 IC XT2 XT1 VDD0 AVREF0 S-METER PHONE NOISE NC AVCONT I/O I O I/O O O I I I I I I I I I I I I I O O Purpose CD mechanism Down & Limit detection CD mechanism motor switching Lo/Ej switching Mechanism COM stop output Mechanism COM reset output Mechanism COM mute input System reset input Remote control input RDS CLOCK 5-wire CH request (CH) Loading SW detection Key input detection 12 cm disc detection GND potential (for ports) Positive power supply (for other parts than ports and analog circuitry) Main system clock oscillation Main system clock oscillation Flash uCOM write Not used Not used (Connected to 5V power supply) Positive power supply (for ports) 5V power supply (A/D converter reference voltage) S-meter input Hi-Z L Hi-Z L H Hi-Z Hi-Z Hi-Z Hi-Z, L when RDS is not available. Hi-Z, L when CH is not available. Hi-Z Hi-Z Hi-Z Hi-Z Processing in STBY Mode

Navigation muting 2.5V or more, Telephone muting 1V or less. Hi-Z, L when TEL is not available. FM noise detection Not used A/D reference voltage control Hi-Z, L when RDS is not available. L L

ADJUSTMENT
No. ITEM INPUT SETTINGS TUNER (RECEIVER) SETTINGS ALIGNMENT POINTS ALIGN FOR

FM SECTION While holding preset "1" key, press and 98.1MHz 1 SD 0 dev 35dBµ (ANT input) AM SECTION While holding preset "1" key, press and 990kHz (1) SD 0% mod 35dBµ (ANT input) TEST MODE : ON TEST MODE : OFF TEST MODE : ON AM 990kHz Preset "1" key, and preset "6" key hold preset "6" key for a few seconds. "1111" is good. "0000" is not good. TEST MODE : ON FM 98.1MHz Preset "1" key, and preset "6" key hold preset "6" key for a few seconds. "1111" is good. "0000" is not good.

While holding the FM key and preset "6" key, reset the unit. Reset the unit.

4

A

B

C

D

E

F

G

H

I

J

1

PC BOARD (COMPONENT SIDE VIEW) (FOIL SIDE VIEW)
X16-1460-xx/ X16-1482-7x (J74-1285-12) X16-1460-xx/ X16-1482-7x (J74-1285-12) X25-9142-7x (J74-1368-12) X25-9120-xx/913x-xx (J74-1290-12)
R251/W177 R254/W176 W137 W133 VOL

D17
KS5

W81

D268

D264

D267

D8

R19

TH1

C9

SRC

C6

W55 W58 W44

W37

C1 C5 R13 R16 9 W136 E LED+B R14 B C63 R22 8 L2 L1 R28 16 1

C500 24 25

2
KS4

IC4

C501 C225 2 W156 1 2 3 4 8 12 11 13 1 5 7 6 10 9 W16 R231 R227 R232 R228

IC2

D19

J2

W140

R15

W50

R21 PAN-SW

R411

D402 R409

D404

R406

D409 R405

D411 R407

R404

R410

R408

R401

W139

W93

Q55 D51

D12 D14 D13 D11

W141

W84

D1

D263

D7

J4

J5 J1

R25

D265

W67

W52

R403

R402

W90

R260/W178

R252

R253

W89

R57

ESDGND

W135

W122

C58 R71

W88

W86

D262
W102

BE W3

R223

BE

D266

R257

EBE

W166 W119 W114

C258

C255

C252

C253

C254

C251

R72

R30 R261 R263 R20 C30 C257 W161 BE W162 W39

D1

D30

REMO R52 R12 R5 DATAS R2 R4 R3 L-CE ILL GND 15 DATAL W124 14 C51 C64 C52

D70
EB

R221 W14

D403

3
2

SW5V

1

C50

D410

C403

R32 R73 R31 R11 R10 W169

Q221
BE

R229 1 R225

C228 2 1

C401

C402 C221

C223

C226

D407

W2

Q51

R256

C224

R224

D251

R22

D401

R259

C256

Q222
BE

CN2

Q70

D253

D252

Q251

D40

D10

C21

W60

W57

W48

R53

BE

D20

C59

J1

R12 W92

W27

W111

W23

W22

W19

W95

W108

D22

BE

L201

R55

W71 W69 R51 W72 W73 W66

2

W101

W38 C202 28 8 5 C203 W29 15

R119

12 W103 D-GND C56 C62 W125 W171 W172 W173 W174 R122 C103 R125

C55

R264

W96

D50

Q53
EBE

14

8

Q201

C303 BE R204 L304 W9 W10 W11 C301

4
D4

IC8
1 R112 R114 7 W167 W150

IC12
1 W63 W168 4 1 R118

IC2
14

W77

R412 C404

R56

C57 CP1 41 40

D201

C208

W56

32

17

W76 R415

CP2 R67

D101

D5

60

R128 R129 R130 C101 W129

W15 W36 W33 W59 W20 W17 W34 C352 W6 W54 W49 W47

49

64

W43

KI4

W165

W157

C105

C4 C3 C2 C1 R8 R7

R134

W105

D103

R102 R132

D104

R10

R133

RES

X1 R106 W120 W116 W138

W130 W128 W127

C106

CN1
22 21 2 1

W28

R352

R353

W98 R143 R142

R141

R351

R144

W26

W53

W24

W41

W159 W32

C353 C354 8 C351 1

C310

W132

W142

W121 W155

C311

R123

D109 P1
W91 W99 W94 W164 W163 C142

D111 D107

IC6 D108
9 C355 16 C356

W110

W131

W112

D110

R168

R166

R167

R165

R164

R170

KS2 EB BE KS3

D20

R18

W107

Q1

IC Q Address 1 1
D9

Q101

W134

W117

R163 W83 R172

J3
2 1 14 15 X2

5D
KI2

KI1

Q102

D10
FM KS2

D102
KI3

R17

R20

C7

X25-9142-76 IC Q Address IC Q Address IC Q Address IC Q Address 1 2 4 5F 4H 2H 3E 4G 11 12 10 20 40 5E 4H 3F 3G 3I 50 51 55 70 4G 3E 2E 3F 102 6F 223 224 2I 2I

7 Refer to the schematic diagram for the values of resistors and capacitors.

7 8

251 3G

101 6E

5

6

C312

6D

KI5

6

BE R101

R171

X16-1482-74 X16-1482-75

KS4

R169

KI4 KI1

KS5

W106

R145

D106

C309

5

W97

D6
RST 39 CLK

80

1

W42

W40

C104 R131

R105 R103 R104

W82

C102

W64

R107 R121

C307

R126 R127 R414

L101

W62

L306

61

20

48

1

R108 R110

W12

W5

34

IC1

R138 R137

C206 C210 C211

IC1

W79

W78

W75

R139 21

W85

2 1

CP3

R135

C209 C207

R136 R58

W13

C304

IC11

R116

C305

W87

R111 R113 R140

W7 W152 W160 R202 W21 R201 R301

33

16

W4

R115

R413 W61

C205

D202

R255 R117

R205

C204

R203

W179 L305

W18

C306

24

W143

D3

PAN5V

W104

R23

C61

1

R50 C40

W25

R54

W113

W100

W46

W31

C54

C60

Q50

W68

W151

W30

Q10

W65

C201

W35

D2

L-CLK

Q20

R258

W74

W51

W45

C53

R21 C313 W158

W115

IC7

W70

R226

R173

ATT

D11
1 3 4 5 6

ED1
1

D261

Q223

Q224

CN3

W80

R230

3

L4 W1

EB

C222 R222

BE

Q40

A1

1

L303 C302

D12 D13
TI KS3 AUD KI5

AM

KI2

D18

KI3

A

B

C

D
(X25-91XX-XX)
+B

E

F

G

H

I

J

+B

13 11 12 8 9 10 6

4 7

3 5

2 1

FR+ FRRR+ RR-

13 3 4
GND REQ H B.U CH CON

20 14.4V +B VCC 1 22 MUTE 24 0V P GND

6 14.4V +B VCC 2 8 0V P GND 10 7.2V SVR 12 7.2V IN 2 14 7.2V IN 4

16 7.3V

4 4.9V

0V

0V

2

6 7 8

10 11 12

D267 D261 D263 D265
+B

FRONT Rch+

AC GND

P GND

P GND

STBY

R73 100K

RR+

FR+

RL+

RR-

FL+

R72 36K

D264
Lch DATA H DATA C CLK REQ C

FR-

RL-

FL-

D1

82K

C1 3300u16 +

AM+B FM+B

1 REQ H 7 RST 2 GND 8 Rch 3 B.U 9 REQ C 4 CH-CON 10 DATA C 5 MUTE 11 DATA H 6 A. GND 12 Lch 13 CLK



RLRL+ FLFL+

1

J4 C
1 5 9

J2

16 1
REAR Lch+ FRONT Lch+

15 2
REAR LchFRONT Lch-

14 3
REAR RchFRONT Rch-

13 4
REAR Rch+

12 5
NC P-ANT

11 6
P-CON PHONE

10 7
ACC NC

9 8
GND

FUSE
L1 B.U.

3.4V or 4.1V

D268 D266
+B

18

POWER

SURGE DETECT
Q70 D70

AM+B FM+B

2

IC4

R71 +B

POWER

IC7 SUPPLY
0V 1
GND P-CON

OUT2+

OUT1+

OUT3+

OUT4+

S GND

OUT2-

OUT1-

OUT3-

OUT4-

R406 4.7K MUTE

TAB

Rch

IN 1

A GND

RST

IN 3

CD

REAR J5

+B
R30 10K

D13
C50 10u25 +

R405 4.7K

R407 4.7K

R409 4.7K

C401 1u50 R401 10 +

R408 4.7K

R404 100

R410 100

R411 100

7.2V 15 7.3V 17 7.3V 19 7.4V 21 7.4V 23 25

0V 1 7.3V 3 7.4V 5 7.3V 7 7.2V 9 7.2V 11 0V 13

Q20
C21 0.01 100K R23 R22 10K

R21 D20 33K
R20 3.3K 1/2W

C403 R403 100u10 4.7 + C402 R402 1u50 10 +

C30 0.01

C225

D30

0.01

R31 47K

R32 22K

R10
R11 10K

D10
D12
R25 4.7K

D11

W166

TEL MUTE

D14

R28 4.7K

D262

14.0V

2

ACC DETECT

14.0V
C52 10u16 + C53 10u16 +

3

P-ANT FM +B

R231 100

R232

30K

W177 R251

R252

W141 R253

W176 R254

W140

4.7K

4.7K

4.7K

D404
+B

D401

D403

D402

D407

D409

D410

D411

C251 0.22u50

C254 0.22u50

C252 0.22u50

R223 270

R224

4.7K

4.7K

270

Q251

C253 0.22u50

R263

D251
D253 D252
C257 1u50 + R257 3.6K

TH1

AUDIO+B BU5V SW5V C54 10u16 +

AUDIO+B L2

AUDIO +B VCC

BU5V

C256

C223 10u16 +

C224 10u16 +

SW5V

Q223,224 PRE OUT MUTE

28

19

16

17

18

63

6

5

7

40
RR

+

10K 47K

14.3V 7

FR

RL

FL

SW5V
Q50
L101 4.7uH R51 47K

BU5V

50

39

C55 10u25 + C101 100u6.3 + C102 0.01

+B
RR RL

SW5V R50 5.6K

C58 100u16 + BU5V C57 220u16 +

8 9

BU 5V V BU 5.0V

Q251 POWER IC

R258

3 1

5 7

AUDIO+B

SVR SW

D50
47 42 52

VDD 10
11

SW 1 SW 2 4 3 1 ILLUM

3
PRE OUT MUTE DRIVER

Q40
22K 22K

38 BU5V 5.0V BU5V BU5V SW5V 77 43 BU5V
BU5V

5.0V 0V

MUTE GATE
0V

C56 10u50 +

VDD

12 0V 11 10 0V 9 0V

10.3V 12
+5V

14

13

8

VDD

D101

R126

100K

IC8
60
VSS SW5V

+5V

+5V
52 53 47 53

C40 0.01

R123 1K

41

50

44

42

E2P ROM

+B

5.0V

Q51
L303 4.7uH

Q101

2

1

59

58

56

57

55

54

0V
C103 0.1

R67 10K

VCC

0V 2

0V 3 0V 4 0V 5

5.0V 6 0V 7

R122 100

R125 1K

IC11
+5V

R255 33K

D40

0V 1

VSS

RESET
3

CP3 1K

CP2 2.2K

1 2 R264 47K 3 4

VCC WP

8 7

DSI SW
L201 4.7uH AUDIO+B

D51
C63 22u16 +

1.5K

R57

CP1 10K

IC12

5.0V

D102 SW14V

ILL+B

R101 240

FM+B L304 4.7uH AM+B

C404

R415

100K

0.01

SW5V

0V
60 59 58 57

56

55

54

53

52

51

50

49

48

47

46

45

44

43

42

PS2-1

PS1-1

LO/EJ

M-MUTE

PS2-0

PS1-2

BEEP

PS1-0

N.C

M-STOP

RESET

N.C

SW 5V

ACC-DET

LOE/LIM SW

B.U-DET

P-STBY

M-RST

MO SW

DSI

18

40

39

38

61

R259

22K

Q201
R205 4.7K

1K

17

62 63

AUDIO+B

15
SW5V

R351 2.2K

1

QUAL RDDA

5V 0V 5V 0V

RDCL T57 OSCO

16 15 14

R353 2.2K

64 KEY 66

R129 2.2K R130 2.2K

64 65 66

LO/S SW KEY-REQ

5V 0V

14

X2 4.332MHz

C351 10u6.3 +

3

C356 10P C355 10P
+5V

VREF 2.4V

+5V C104 15P C105 15P

5.0V
R131 6.8K

5 6
SW5V

MPX OSEL GND ARI FI 1 OUT

OSCI

7
C353 10u6.3 + C354 0.01

5.0V 0V

VCC EXTRES TM F SEL

12 11 10 9

0V 0V or 5.0V

VSS 1 TYPE0

33 32

X1 IC XT2 XT1 5.0V VDD 0 AVREF0 S-METER

71 72 73 74 75 76

0V

SYSTEM u-COM

R139 R140 R137 R138 R135 R136
47K R110 4.7K 27 47K 47K 47K 47K 47K

SDA SCL 18

20 19 18

AM SDA SCL

C206 10 0.015

5.0V 0V
MPX 11 C207 0.47 12
R203

R201 2.7K AM C210 0.033 R202 4.7K

ILL+B

5

12EJE SW 67 0V VSS 0 68 VDD 1 69 X2

8.2V 22

VDD

CDR CD GND CDL

5 6 7 8 9

5 6 7

BU5V

SDA SCL

R352 2.2K 2

5V 0V

5V 0V

CLK DATA

RR

OUT RR

36

R115 1K

R116 10K

R

4

4

C303 0.01

IC6

RDS DECODER



63 R414 100K

CH-REQC

5V or 0V 0V

5V 0V 5V 0V

P-MUTE MUTE

39 38 37 R117 1K R119 47K R118 10K

FL FR RL

26 25 24 23

OUT FL OUT FR OUT RL

4.1V

4.0V

L

3

+B

R-CLK

5V 0V

AC OUT R

4.1V

CREF

SW5V

E

AUDIO+B



SW5V

Q201 NOISE BUFFER

R204

5V 0V

REMO 5V 0V

FM+B AM+B

61

5.0V 0V
28 27

IC2

(BOTTOM VIEW)
VREF 1 2

C202 0.01

R127 2.2K

C201 47u10 +

4

R128 2.2M

41

0V 6 VSS SCL 5 SDA

Q55

L4 52mH

4

SERVO +B AVR
F/E
+B C302 0.01 C301 100u10 + 1 2

5V 0V

5V 0V

0V or 5.0V

5.0V 0V SVR 40

AC OUT L

C203 2.2u50 +

ILL+B

A1
RF GND

C205 2.2u50 +

3

5V 0V

D202
C204 2.2u50 +

D201

22

5V 0V
IC2 TYPE0 35 34 R114 47K R113 47K

4

0V

21

GND

PHAFS

W21

W179 W143
27 76 FM AM AUDIO+B R301 2.2 L305
C305 0.01

C352 330P 4

13

X1 4.19MHz 70

IC1

IC2 TYPE1

FM ANT 3 AM ANT 4 FM +B 5 AM +B 6 AM LO/DX 7 FM LO/DX 8 IF SELECT 9 RDS OUT 10 REQUEST 11 K2I-VTH 12 VCO GND 13 FM SD OUT 14 FSD OUT 15 16 17 FM DET OUT AM DET OUT COMMON +B

8

+5V
C106 4700P R133 160K

0V or 5.0V 5V 0V 0-4.0V

TYPE1

31

S MUTE 3.5V

FM C211 150P C209
4.7K

C228 0.01 SW5V

0V or 5.0V 5.0V 5V 0V

TYPE2

TYPE REF CH-CON SD N.C

29 28 27 26 25 24 23 22 21

R132 22K

17

17 16 15

LEVEL QUAL OUT R OUT L

0V
MP IN MP OUT 13 4.7V 14 1.0V
C208 0.1

0.1
SW5V

C304 100u10 +

30

4.7uH

AUDIO+B

18 19 20 21 22

IF GND HI UP ADJ PLL CE PLL DATA PLL CLK

77 R134 2.2K
4 76

20 9 10 L306 SW5V
C306 10u10 + C307 0.01

PHONE NOISE N.C AV CONT

0.6-4.1V 2.2-4.5V 5V 0V 5V 0V 5V 0V 5V 0V 5V 0V 5V 0V
L-DATAS L-DATAL R-QUAL R-DATA L-CLK

78 79 80

5 L-RST(ONLY 14seg) 6 L-CE 5.0V 7 AVREF1 +5V 8 R103 N.C 2.2K 9 9 PLL-DATA R104 10 10 PLL-CLK 2.2K KEY R106 100K

D106

D107

D109

61

12

13

60

11

1

CH-DATAC

CH-DATAH

6
D108

5V 0V

5V 0V 5.0V 0V
CH-REQH CH-CLK

N.C N.C LO/DX AFS

5V 0V
PLL-CE

21

5V 0V

N.C

E.VOL & N.C MPX

22 R58 4.7K 21

ILL+B

23

6

5

4.7uH

P-ON 5V

PANEL

Q102
47K 10K

8EJE SW

+5V

1

N.C

PANEL 5V SW
D110

A VSS

24

DIG GND

11

12

2

13

15

16

18

19

14

0V 4

17

20

3

ILL+B

SCL

SDA

59

58

56

66

57

55

64

54

14

15

R121 2.2K

R107 2.2K

R105 470

+B

3

4

ILL+B
R164 470 R165 470 R167 100

R108 2.2K

R141 4.7K R143 4.7K

R144 100K

AUDIO+B

R145 2.2K C309 0.01

R171 47 R170 1K

R168 1K

R172 1K

R166 1K

R169 1K

R413

100K

R412

R102

100K

1K

D104

R163

D103

C142 0.1

10

16

18

17

19

20

11

12

ILL+B

+5V

13

1

1

3 2 4

5 6

7 8

9 10
M MUTE D GND

11 12
N.C

13 14

15 16
Lch GND

17 18
LO/EJ Rch

19 20

21 22

5

6

15 14
ESD-G

13 12

11 10
L-DATAS

9 8
L-DATAL L-CE

7 6
L-RES

5 4

3 2
ILL-GND PAN 5V

1

28
D OUT

AUDIO +B

N.C

SERVO GND

SERVO +B

BU 5V

M STOP

M RST

MSDA

12EJE SW

LO/S SW

MS CLK

8EJE SW

MO SW

LED +B

7

LAMP +B

PANEL

D-GND

SW 5V

REMO

L-CLK

RST

J3

+5V ILL+B

to CD MECHANISM

LOE/LIM SW

P1

CN1

KDC-4021/V/Y/YV (1/2) KDC-3020R (1/2) KDC-3021A/G/YA/YG (1/2) KDC-306A/G/YA/YG (1/2) KDC-2092RYA/RYG (1/2) KDC-2021SA/SG (1/2)

FM+B AM+B

W178

R12 100K

Q223

Q224

41

C255 1u50 + R256 1K

4.7K

750

+B

R261

R260

C258 1u50 +

44

R227 30K

R228 30K

100

77

2

Q10
43

8.1V 4

BU DETECT
8.1V

7.9V

5 6

AM +B

J1

K

L

M

N
SWITCH UNIT (X16-1482-7X)

O

P

Q

R

S

T

S21

S31

S22

S12

S18

S20

S23

S19

S13

S15

S16

S38

S35

S32

S36

S40

S39

S30

S29

S28

S26

S25

S27

S17

S14

S33

S34

S24

S37

S10

S11

S8

S5

S9

FL+ FLFRFR+ ANT CONT/ P. CONT

WHT WHT/BLK GRY/BLK GRY BLU/WHT BLU/WHT RED BLK

8 9 7 10 6 11 5 12 4 13 3 14 2 15 1 16

GRN GRN/BLK VIOL/BLK VIOL

RL+ RLRRRR+

FL+ FLFRFR+ ANT CONT/ P. CONT

WHT WHT/BLK GRY/BLK GRY BLU/WHT BLU/WHT RED

8 9 7 10 6 11 5 12 4 13 3 14 2 15 1 16

GRN GRN/BLK VIOL/BLK VIOL

RL+

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

S7

36

37

S6 38 38

10

12

RLRRRR+

BRN

TEL MUTE

BRN

TEL MUTE

YEL

BLK

YEL

MOLEX CONNECTOR
RL+ FLFL+ FRFR+ RRRR+ RL-

MOLEX CONNECTOR

ED1 (SEGMENT)

13

11

1

2

3

4

5

6

7

8

9

C1
RL+ FLFL+ FRFR+ RRRR+ RL-

C2

10

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

7 8

5 6

3 4

1 2 B 7 8 5 6 3 4 1 2 B

39

11

1

2

3

4

5

6

7

8

9

C3

39

PCON

GND

ACC

ISO CONNECTOR

IC1 IC2

: LC75853NE : RS-171 : DTA114EUA (X16-1482-7X)
MODEL NAME KDC-2021SA (E) KDC-2021SG (E) UNIT No. 2-74 D1-13, 17,18,20 B30-1567-05 (RED) B30-1533-05 2-75 (GREEN)

ED1 (COMMON)

PCON

7 8

5 6

3 4

1 A 2 BUP

GND

ACC

ISO CONNECTOR
5 6 3 4 1 A 2 BUP

Q1

7 8

D1-13,17,18,20 : D19 : B30-1633-05 D22 : MA3062WA GND LINE B LINE

DC CORD (E30-4790-05) KDC-4021/Y/3021A/G/YA/YG/306A/G/YA/YG/ 3020R/2021SA/SG/2092RYA/RYG

DC CORD (E30-4791-05) KDC-4021V/YV

+B

J1
ESD-GND 15 PANEL14 SW

TP35 TP34 TP19

KS5

C3

C2

C1

S40

S39

S38

S36

S35

S37

S34

S33

(X25-91XX-XX)
MODEL NAME KDC-4021 (E) KDC-4021Y (E) KDC-4021V (E) KDC-4021YV (E) KDC-3020R (M) KDC-3021A (E) KDC-306A (E) KDC-3021YA (E) KDC-306YA (E) KDC-3021G (E) KDC-306G (E) KDC-3021YG (E) KDC-306YG (E) KDC-2092RYA (E) KDC-2092RYG (E) KDC-2021SA (E) KDC-2021SG (E) UNIT No. 42-70 32-70 42-71 32-71 30-21 42-72 42-74 32-72 42-73 42-75 32-73 32-74 32-75 42-76 NO NO NO YES YES NO 33u50 33u50 100u50 NO NO NO YES YES NO 428 428 429 TDA7560 E58-0879 YES TDA7560 E58-0879 YES TDA7386 E58-0879 NO YES NO NO NO YES YES

TP24

C
YES YES YES NO

E
YES YES YES YES

C256 33u50 33u50 33u50 33u50

IC1 C404 D261-268 (UPD780058GCXXX) YES YES YES NO YES YES YES YES 427 427 427 427

IC4

J3

R102, R135 R136 168 NO YES NO YES YES NO YES NO

SW5V REMO 12

13 TP33 TP27 R2 470 R4 470 R3 470 R5 1K

KEY DETECT SW Q1
10K

KS4

KS3

KS2

S1
TP16 TP17 TP18

TP9 TP8 TP7 TP6

S25
TP11 KI1

S14 4

S13 3

S2

48

47

46

45

44

43

42

41

40

39

38

37

36

35

34

TDA7560 E58-0879 YES TDA7560 E58-0879 YES TDA7560 E58-0879 YES TDA7560 E58-0879 YES

KS5

KS3

KS2

S40

S39

S38

S36

S35

COM2

S37

KS4

X14J3 1/2

L-DATAS L-CLK 10

11 TP28 TP29

80 79 78 77 KI1

10K

KS6 KI1 KI2 KI3 KI4 KI5

TP1 TP2 KI2 TP3 KI3 TP4 KI4 TP5 KI5

50 51 52 53 54

COM3

S34

S33

49

COM1

N.C.

33

S3
5V 0V
S32 S31 S30 S29 S28 S27 S26 S25 S24 S23 S22 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17

L-CE L-DATAL N.C 8

9 TP30

A
NO YES 33u50 NO YES 427 TDA7560 E58-0879 YES NO YES

S32 S31 S30 S29 S28 S27 S26 S25 S24 S23 S22 S21 S20 S19 S18 S17 KI4 TP14 KI3 TP13 KI2 TP12

S24

S15 5

S12 2

S4 VOL+ S5

7 TP32

RST S17

RST 6 TP26 LED+B LAMP+B 4 ILL-GND PAN 5V D-GND 2 TP22 1 3 TP31 +5V 5 TP21 R21 220 +B

R22 220

D19

KEY

N.C.

N.C.

N.C.

S10

S12

S13

S14

S15

10

12

13

15

NO NO NO NO

YES YES YES YES

NO NO NO NO

YES YES YES YES

NO NO NO YES

220 220 220 100

10 10 10 430

4.3K 4.3K 4.3K 180K

YES YES YES NO

NO YES YES NO

YES NO NO YES

X86-3512-70 X86-3512-72 X86-3512-72 X86-3522-71

32-73 32-74 32-75 42-76

S11

S12

S13

S15

S10

D20 D12

D9 D13

R17 510 R18 510

S7

0V

S14

S16

D10

D18

R20 510

14

16

42-73 42-75

1

11

2

3

5

6

8

4

7

9

D6

D5

D4

R15 330

D22

S16

S11

S5

S6

S7

S8

S9

UNIT R139,170, R251-254, W21,140, A1 (F/E) R140 R258 R261 R263 141,176-178 W143 W179 R137 R138 260 171,412-414 No. 42-70 NO YES 220 10 4.3K NO YES NO YES NO YES X86-3512-70 32-70 42-71 NO YES 220 10 4.3K NO YES NO YES NO YES X86-3512-70 32-71 YES NO 30-21 YES NO 220 10 4.3K YES NO NO YES X86-3512-70 42-72 42-74 NO NO YES X86-3512-70 YES NO YES 220 10 4.3K NO YES 32-72

R10 4.7

0V 55 TEST 56 +5V VDD C3 0.047 57 VDD2 C2 0.047 58 VDD1 0V 59 VSS R8 56K
C1 1000P 60 61 62 63 64 OSC

S22 S23 FM S26 S27 AM S20 S21 S18 CLK
KS2 KS3 KS4

5.0V 3.3V 1.7V

IC1
LCD DRIVER

S16 6

S11 1 S9

S6 VOLS7 S8 SRC

C9 0.01

D8 D11 D3

D7 D17 D2 D1

R7 4.7K

+B

0.01

C4

R16 510 R19 510 R14 330

77 78 79 80

L-DATAL L-CE L-CLK L-DATAS

1.7V 0V 5V 0V 5V 0V

S21 S20 S19 S18 S17

S19 TI

S10 ATT

5V
S5 S6 S8 S9

TP15 KI5

AUD

IC1 IC2 IC4 IC6 IC7 IC8 IC11 IC12 Q10,20,70,201 Q40 Q50 Q51 Q55 Q102 Q223,224 Q251

: : : : : : : :



TDA7407D TDA7479D BA4911-V4 HD74HC27FP S-80835ANNP BR24C01AF

: 2SC4081 or 2SD1819A : DTA124EUA or UN5112 : 2SA1036K : UMC2N : 2SD2375 or 2SD2396 : DTA114YUA or UN5114 : DTC143TUA or UN5216 : DTC114YUA or UN5214

D1 : 1N5393G-M6 D10,20,70,201,202,401,402 : MA4068(N)-M D11,13,264,267,268 : D1F60 D12,14,261-263,265,266 : AM01Z or DSM1SD2 or ERA15-02 : MA4047-M or D30 HZS5B1 D40,50,101,103,104,251-253 : 1SS133 : MA4082(N)-L or D51 HZS9A1L : B30-1567-05 D102 D106-109,403,404,407,409-411 : MA4062-L : HZS12A2 D110
+B

KDC-2021SA/SG (2/2)

2SD2396

DTC114YUA DTC143TUA UN5111 2SA1036K

2SC4081

DTA114EUA DTA124EUA

UMC2N

DTA114YUA

BR24C01AF

SIGNAL LINE B LINE

X13J1 2/2

A

CAUTION : For continued safety, replace safety critical components only with manufacturer's recommended parts (refer to parts list). ! Indicates safety critical components. To reduce the risk of electric shock, leakage-current or resistance measurements shall be carried out (exposed parts are acceptably insulated from the supply circuit) before the appliance is returned to the customer. · DC voltages are as measured with a high impedance voltmeter. Values may vary slightly due to variations between individual instruments or/and units.

KS5

KDC-2021SA/SG
EXPLODED VIEW
A B

DC1 215x2 242
D

206

201 229
1

Dx2

A B C D E F G H

M3x8 2x6 2x8 (BLK) 3x5 3x10 3x20 2.6x6 1.5 RING

: N30-3008-46 : N80-2006-46 : N80-2008-45 : N83-3005-46 : N80-3010-46 : N83-3020-46 : N86-2606-46 : N29-0205-04
205

203 216 213
H

DME1

225

224 214

704 C C

J1
C

J5
D E

755 F Fx2 E

A1
717 C

246
2

(X16)

249
751

245
742

J2 F1 J3
D 753
(X25)

218 248 250 FC1
X16

G 743

ED1 226 232 233 235 236
B B 728 D 722

237 238
3
708

234

D

PA1

211
A A

702

210

Parts with the exploded numbers larger than 700 are not supplied.

11

KDC-2021SA/SG
PARTS LIST
New parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No. werden nicht geliefer t. A N DestiRef. No. Parts No. Description d e nation d w Ref. No. D1-13 D17,18 D17,18 D19 D20 D20 ED1 C1 C2,3 C2,3 C4 C9 249 250 J1 R2-4 R5 R7 R8 R10 R14,15 R16-20 R21,22 D22 IC1 Q1 Q1 2A 2A A d d N e w Parts No. B30-1567-05 B30-1533-05 B30-1567-05 B30-1633-05 B30-1533-05 B30-1567-05 B38-1080-05 CK73GB1H102K CK73GB1E473K CK73GB1H473K CK73GB1H103K CK73GB1H103K E29-1829-04 E29-1834-04 E59-0828-05 J19-5130-04 RK73GB2A471J RK73GB2A102J RK73GB2A472J RK73GB2A563J RK73GB2A4R7J RK73FB2B331J RK73FB2B511J RK73FB2B221J MA3062WA LC75853NE DTA114EUA UN5111 Description LED (1608,RED) LED (1608,PG) LED (1608,RED) LED (WHITE) LED (1608,PG) LED (1608,RED) LIQUID CRYSTAL CHIP C CHIP C CHIP C CHIP C CHIP C 1000PF 0.047UF 0.047UF 0.010UF 0.010UF K K K K K Destination E6 E7 E6 E7 E6

KDC-2021SA/2021SG
201 203 205 206 PA1 210 211 213 214 215 216 218 DC1 FC1 F1 224 225 226 229 232 233 234 235 236 237 238 A B C D H 242 DME1 1A 3A 3A 3A 3A 3A 3A 3A 3B 3A 2A 1B 1A 1A 1B 1A 2A 1A 1A 2A 1A 2A 2B 1A 1A 3A 1A 1A 2A 1B 3A 3B 3A A02-1486-13 A22-2863-03 A46-1750-01 A52-0804-02 A64-2564-02 B07-3054-02 B10-4141-01 B46-0100-50 B46-0606-04 B58-1365-04 B64-2112-00 B64-2231-00 B64-2232-00 D10-4446-03 D10-4447-03 D10-4589-04 D21-2329-04 E29-1872-02 E30-4790-05 E39-0343-05 F52-0006-05 G01-2987-04 G01-3096-04 G01-3149-04 H10-4800-02 H25-0337-04 H25-1111-04 H54-2283-03 H54-2284-03 J21-9641-13 K24-3822-04 K24-3823-04 K24-3824-04 K24-3825-03 K24-3826-04 PLASTIC CABINET ASSY SUB PANEL ASSY REAR COVER TOP PLATE PANEL ASSY ESCUTCHEON FRONT GLASS WARRANTY CARD ID CARD CAUTION CARD INSTRUCTION MANUAL (ENGLISH) INSTRUC. MANUAL (DUT.SPA.POR.) INSTRUCTION MANUAL (SWE.FIN.) LEVER LEVER LEVER SHAFT CONDUCTIVE RUBBER DC CORD FLAT CABLE FUSE (MINI BLADE TYPE) TORSION COIL SPRING EXTENSION SPRING COMPRESSION SPRING POLYSTYRENE FOAMED FIXTURE PROTECTION BAG (180X300X0.03) PROTECTION BAG (280X450X0.03) ITEM CARTON CASE E6 ITEM CARTON CASE E7 MOUNTING HARDWARE ASSY KNOB (RELEASE) KNOB (SRC) KNOB (AUD) KNOB (VOL) KNOB (EJECT) KNOB (PRE1-6,ATT,RESET) KNOB (AUTO,CLK,FM,AM) PAN HEAD MACHINE SCREW PAN HEAD TAPTITE SCREW PAN HEAD TAPTITE SCREW PAN HEAD TAPTITE SCREW RETAINING RING (1.5) ANTENNA ADAPTOR MECHANISM ASSY

CONDUCTIVE RUBBER CONDUCTIVE RUBBER RECTANGULAR PLUG HOLDER (LED) CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R 470 1.0K 4.7K 56K 4.7 330 510 220 J J J J J J J J 1/10W 1/10W 1/10W 1/10W 1/10W 1/8W 1/8W 1/8W

!

!

ZENER DIODE MOS-IC DIGITAL TRANSISTOR DIGITAL TRANSISTOR

ELECTRIC UNIT (X25-9142-76)
D102 C1 C21 C30 C40 C50 C52-54 C55 C56 C57 C58 C63 C101 C102 C103 C103 C104,105 C106 C142 C142 C201 C202 C203-205 B30-1567-05 C90-5242-05 CK73GB1H103K CK73GB1H103K CK73GB1H103K CE04NW1E100M CE04NW1C100M CE04NW1E100M CE04CW1H100M C90-2980-05 C90-2962-05 CE04NW1C220M CE04NW0J101M CK73GB1H103K CK73GB1C104K CK73GB1H104K CC73GCH1H150J CK73GB1H472K CK73GB1C104K CK73GB1H104K CE04NW1A470M CK73GB1H103K CE04NW1H2R2M LED (1608,RED) ELECTRO CHIP C CHIP C CHIP C ELECTRO ELECTRO ELECTRO ELECTRO ELECTRO ELECTRO ELECTRO ELECTRO CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C ELECTRO 3300UF 16WV 0.010UFK 0.010UFK 0.010UFK 10UF 25WV 10UF 10UF 10UF 220UF 100UF 16WV 25WV 50WV 16WV 16WV

K25-1396-03 K25-1397-03 N30-3008-46 N80-2006-46 N80-2008-45 N83-3005-46 N29-0205-04 T90-0523-05 X92-4030-01 B11-1358-04 B11-1359-04 B19-2130-03 B30-1533-05

22UF 16WV 100UF 6.3WV 0.010UFK 0.10UF K 0.10UF K 15PF 4700PF 0.10UF 0.10UF 47UF J K K K 10WV

SWITCH UNIT (X16-1482-74/75)
245 246 248 D1-13 2A 2A 2A OPTICAL DIFFUSER REFLECTION SHEET LIGHTING BOARD LED (1608,PG) M : Other Areas

E7 E6 : KDC-2021SA E7 : KDC-2021SG

CHIP C 0.010UFK ELECTRO 2.2UF 50WV
!

E : Europe K : North America W : Without Europe

Indicates safety critical components.

12

KDC-2021SA/SG
PARTS LIST
New parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No. werden nicht geliefert. A N DestiRef. No. Parts No. Description d e nation d w C206 C207 C208,209 C208,209 C210 C210 C211 C223,224 C225 C228 C251-254 C255 C256 C257 C258 C301 C302,303 C304 C305 C306 C307 C309 CN1 J1 J2 J3 J5 L1 L2 L4 L101 L201 L303-306 X1 D E F G CP1 CP2 CP3 R10 R11 R12 R20 R22 R23 R31 R32 R51 R57 R58 R67 2B 2B 2B 2B CK73GB1H153K CK73GB1A474K CK73GB1C104K CK73GB1H104K CK73GB1E333K CK73GB1H333K CC73GCH1H151J C90-2597-05 CK73GB1H103K CK73GB1H103K C90-5296-05 CE04NW1H010M CE04CW1A101M CE04NW1H010M C90-2935-05 CE04NW1A101M CK73GB1H103K CE04CW1A101M CK73GB1H103K C90-2594-05 CK73GB1H103K CK73GB1H103K E40-9550-05 E04-0312-05 E58-0863-15 E58-0879-05 E63-0852-05 L33-1170-05 L33-1807-05 L33-1123-05 L40-4795-91 L40-4795-91 L40-4795-91 L77-1167-05 N83-3005-46 N80-3010-46 N83-3020-46 N86-2606-46 R90-1056-05 R90-1047-05 R90-1046-05 RK73FB2B303J RK73GB2A103J RK73GB2A104J RD14DB2H332J RK73GB2A103J RK73GB2A104J RK73GB2A473J RK73GB2A223J RK73GB2A473J RK73FB2B152J RK73GB2A472J RK73GB2A103J CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C ELECTRO CHIP C CHIP C NP-ELECT ELECTRO ELECTRO ELECTRO ELECTRO ELECTRO CHIP C ELECTRO CHIP C ELECTRO CHIP C CHIP C 0.015UF 0.47UF 0.10UF 0.10UF 0.033UF 0.033UF 150PF 10UF 0.010UF 0.010UF 0.22UF 1.0UF 100UF 1.0UF 1.0UF 100UF 0.010UF 100UF 0.010UF 10UF 0.010UF 0.010UF K K K K K K J 16WV K K 50WV 50WV 10WV 50WV 50WV 10WV K 10WV K 10WV K K

ELECTRIC UNIT (X25-9142-76)
Ref. No. R71 R72 R73 R103,104 R105 R106 R107,108 R110 R113,114 R115 R116 R117 R118 R119 R121 R122 R123 R125 R126 R127 R128 R129,130 R131 R132 R133 R136 R138 R140 R143 R144 R201 R202,203 R223,224 R251 R254 R255 R256 R257 R258 R260 R261 R263 R264 R415 W150 W151 W152 W155 W156,157 W158,159 W160-165 W166-169 W171-174 W179 A d d N Parts No. e w RK73GB2A823J RK73GB2A363J RK73GB2A104J RK73GB2A222J RK73GB2A471J RK73GB2A104J RK73GB2A222J RK73GB2A472J RK73GB2A473J RK73GB2A102J RK73GB2A103J RK73GB2A102J RK73GB2A103J RK73GB2A473J RK73GB2A222J RK73GB2A101J RK73GB2A102J RK73GB2A102J RK73GB2A104J RK73GB2A222J RK73GB2A225J RK73GB2A222J RK73GB2A682J RK73GB2A223J RK73GB2A164J RK73GB2A473J RK73GB2A473J RK73GB2A473J RK73GB2A472J RK73GB2A104J RK73GB2A272J RK73GB2A472J RK73FB2B271J RK73GB2A472J RK73GB2A472J RK73GB2A333J RK73FB2B102J RK73GB2A362J RK73GB2A101J RK73GB2A751J RK73GB2A431J RK73GB2A184J RK73GB2A473J RK73GB2A104J R92-1252-05 R92-2053-05 R92-1252-05 R92-1252-05 R92-2053-05 R92-1252-05 R92-2053-05 R92-1252-05 R92-1252-05 R92-2052-05 Description CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R 82K 36K 100K 2.2K 470 100K 2.2K 4.7K 47K 1.0K 10K 1.0K 10K 47K 2.2K 100 1.0K 1.0K 100K 2.2K 2.2M 2.2K 6.8K 22K 160K 47K 47K 47K 4.7K 100K 2.7K 4.7K 270 4.7K 4.7K 33K 1.0K 3.6K 100 750 430 180K 47K 100K 0 OHM 0 0 OHM 0 OHM 0 0 OHM 0 0 OHM 0 OHM 0 OHM J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/8W 1/10W 1/10W 1/10W 1/8W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/16W 1/8W 1/16W 1/16W 1/8W 1/16W 1/8W 1/16W 1/16W 1/10W Destination

!

FLAT CABLE CONNECTOR RF COAXIAL CABLE RECEPTACLE RECTANGULAR RECEPTACLE RECTANGULAR RECEPTACLE PIN JACK CHOKE COIL ASSY CHOKE COIL LINE FILTER COIL SMALL FIXED INDUCTOR (4.7UH,J) SMALL FIXED INDUCTOR (4.7UH,J) SMALL FIXED INDUCTOR (4.7UH,J) CRYSTAL RESONATOR (4.19M) PAN HEAD TAPTITE SCREW PAN HEAD TAPTITE SCREW PAN HEAD TAPTITE SCREW BINDING HEAD TAPTITE SCREW MULTIPLE RESISTOR MULTIPLE RESISTOR MULTIPLE RESISTOR CHIP R 30K J CHIP R 10K J CHIP R SMALL-RD CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R 100K 3.3K 10K 100K 47K 22K 47K 1.5K 4.7K 10K J J J J J J J J J J

1/8W 1/10W 1/10W 1/2W 1/10W 1/10W 1/10W 1/10W 1/10W 1/8W 1/10W 1/10W E6 : KDC-2021SA E7 : KDC-2021SG

E : Europe K : North America W : Without Europe

M : Other Areas

!

Indicates safety critical components.

13

KDC-2021SA/SG
PARTS LIST
New parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No. werden nicht geliefert. A N DestiRef. No. Parts No. Description d e nation d w D1 S2V20A DIODE D1 1N5393G-M6 DIODE D10 MA4068(N)-M ZENER DIODE D11 D1F60 DIODE D12 AM01Z DIODE D12 D12 D13 D14 D14 D14 D20 D30 D40 D50 D51 D70 D101 D103,104 D106-108 D110 D201,202 D251-253 IC1 IC2 IC4 IC7 IC8 IC11 IC12 IC12 IC12 Q10 Q20 Q40 Q50 Q51 Q55 Q55 Q70 Q101 Q102 Q223,224 Q251 TH1 A1 DSM1SD2 ERA15-02 D1F60 AM01Z DSM1SD2 ERA15-02 MA4068(N)-M MA4047-M 1SS133 1SS133 MA4082(N)-L MA4068(N)-M 1SS133 1SS133 MA4062-L HZS12A2 MA4068(N)-M 1SS133 UPD780058GC429 TDA7407D TDA7386 BA4911-V4 HD74HC27FP S-80835ANNP BR24C01AF M24C01-WMN6T S-24C01B 2SC4081 2SC4081 DTA124EUA 2SA1036K UMC2N 2SD2375 2SD2396 2SC4081 2SC4081 DTA114YUA DTC143TUA DTC114YUA PTH9C42BE471Q X86-3522-71 DIODE DIODE DIODE DIODE DIODE DIODE ZENER DIODE ZENER DIODE DIODE DIODE ZENER DIODE ZENER DIODE DIODE DIODE ZENER DIODE ZENER DIODE ZENER DIODE DIODE MI-COM IC ANALOGUE IC ANALOGUE IC ANALOGUE IC MOS-IC MOS-IC MEMORY IC MEMORY IC MEMORY IC TRANSISTOR TRANSISTOR DIGITAL TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR DIGITAL TRANSISTOR DIGITAL TRANSISTOR DIGITAL TRANSISTOR POSITIVE RESISTOR FRONT-END UNIT

ELECTRIC UNIT (X25-9142-76)
Ref. No. A d d N e w Parts No. Description Destination

E : Europe K : North America W : Without Europe

M : Other Areas

E6 : KDC-2021SA E7 : KDC-2021SG

!

Indicates safety critical components.

14

KDC-2021SA/SG

15

KDC-2021SA/SG
SPECIFICATIONS
KDC-2021SA/SG
FM
Frequency Range ........................................ 87.5MHz~108.0MHz Frequency step ................................................................... 50kHz Usable Sensitivity (S/N 26dB) ..................................... 0.7µV/75 Quieting Sensitivity (S/N 46dB) ................................... 1.6µV/75 Frequency Response (±3.0dB) ............................... 30Hz~15kHz S/N (dB) ................................................................. 65dB (MONO) Selectivity (DIN) (dB) ........................................ 80dB (±400kHz) Stereo Separation ..................................................... 35dB (1kHz)

AMP
Maximum Power ................................................................. 45wx4 Power (DIN 45324, +B=14.4V) ........................................... 28wx4

TONE
Bass ......................................................................... 100Hz±10dB Middle ........................................................................ 1kHz±10dB Treble ....................................................................... 10kHz±10dB

MW
Frequency Range (kHz) .................................. 531kHz~1611kHz (Frequency step) (9kHz) Usable Sensitivity (S/N 20dB) .............................................. 25µv

GENERAL
Operating voltage (11~16v allowable) ................................. 14.4V Current Consumption ............................................................. 10A Installation Size (Width) ............................ 182mm (7-3/16 inch) (Height) ............................ 53mm (2-1/16 inch) (Depth) ........................... 157mm (6-3/16 inch) Weight .................................................................... 3.1 lbs (1.4kg)

LW
Frequency Range (kHz) .....................................153kHz~281kHz Usable Sensitivity (S/N 20dB) .............................................. 45µv

CD
Laser Diode ................................................... GaAlAs (=780nm) Digital Filter (D/A) .................................... 8 times Over Sampling D/A Converter ........................................................................ 1 Bit Spindle Speed ...................................................... 500~200 (CLV) Wow & Flutter ........................................... Below Mesurable Limit Frequency Respons .......................................... 10~20kHz (±1dB) THD ......................................................................... 0.01% (1kHz) S/N Ratio (dB) ........................................................... 96dB (1kHz) Dynamic Range .................................................................... 93dB Channel Speparation ............................................................ 85dB Preout Level (mV)/Load ....................... 1800mV/10k (CD/CD-CH) Preout Impedance () ............................................................ 600

follows a policy of continuous advancements in development. For this reason specifications may be changed without notice.

KENWOOD CORPORATION
14-6, Dogenzaka 1-chome, Shibuya-ku, Tokyo 150-8501 Japan

KENWOOD SERVICE CORPORATION
P.O. BOX 22745, 2201 East Dominguez Street, Long Beach, CA90801-5745, U.S.A.

KENWOOD ELECTRONICS ITALIA S.p.A.
Via G. Sirtori 7/9, 20129 Milano, Italy

KENWOOD ELECTRONICS CANADA INC.
6070 Kestrel Road, Mississauga, Ontario, Canada L5T 1S8

KENWOOD IBÉRICA S.A.
Bolivia, 239-08020 Barcelona, Spain

KENWOOD ELECTRONICS LATIN AMERICA S.A.
P.O. Box 55-2791 Paitilla, Plaza Credicorp Bank Panama, Piso 9, Oficina 901, Calle 50, Panama, Rep. de Panama

KENWOOD ELECTRONICS AUSTRALIA PTY. LTD. (A.C.N. 001 499 074)
16 Giffnock Avenue, Centrecourt Estate, North Ryde, N.S.W. 2113, Australia

KENWOOD ELECTRONICS BRASIL LTDA.
Alameda Ministro Rocha Azevedo No. 456, Edificio Jaú, 10o Andar, Cerqueira César, Cep 0140-001, São Paulo-SP-Brasil

KENWOOD ELECTRONICS (HONG KONG) LTD.
Unit 3712-3724, Level 37, Tower 1, Metroplaza, 223 Hing Fong Road, Kwai Fong, N.T., Hong Kong

KENWOOD ELECTRONICS UK LIMITED
Kenwood House, Dwight Road, Watford, Herts, WD1 8EB, United Kingdom

KENWOOD ELECTRONICS GULF FZE
P.O. Box 61318, Jebel Ali, Dubai, U.A.E.

KENWOOD ELECTRONICS DEUTSCHLAND GMBH
Rembrücker-Str. 15, 63150 Heusenstamm, Germany

KENWOOD ELECTRONICS (THAILAND) CO., LTD.
2019 New Pechburi Road, Bangkapi, Huaykwang, Bangkok, 10320 Thailand

KENWOOD ELECTRONICS FRANCE S.A.
13, Boulevard Ney, 75018 Paris, France

KENWOOD ELECTRONICS SINGAPORE PTE. LTD.
1 Genting Lane, #07-00, Kenwood Building, Singapore, 349544

KENWOOD ELECTRONICS BELGIUM N.V.
Leuvensesteenweg 248 J, 1800 Vilvoorde, Belgium

KENWOOD ELECTRONICS (MALAYSIA) SDN BHD
#4.01 Level 4, Wisma Academy Lot 4A, Jalan 19/1, 46300 Petaling Jaya, Selangor Darul Ehsan, Malaysia