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CASSETTE RECEIVER

KRC-208S/218 KRC-268/288 KRC-28MR
SERVICE MANUAL
KRC-208S (K)
SRC
PWR OFF

© 2000-1 PRINTED IN KOREA B51-7586-00 (K) 1787

KRC-218 (K)
SRC

REW
PR

FF
OG

PWR OFF

REW
PR

FF
OG

CLK
AUTO AME ADJ

CLK
CD/MD-CHANGER CONTROL KRC-208S
CRSC DISC
AUTO AME ADJ

KRC-218

CRSC

FM

FM

LOUD

SCAN

RDM

REP

T.C/D.SCN

M.RDM

LOUD

T.CALL

ATT

1

2

3

4

5

6

AUD
A.ADJ

AM

ATT

1

2

3

4

5

6

AUD
A.ADJ

AM

KRC-268 (M)
SRC
PWR OFF

KRC-288 (M)
REW
PR

FF
OG

SRC

PWR OFF

REW
PR

FF
OG

CLK
AUTO AME ADJ

CLK
KRC-268
CRSC
AUTO AME ADJ

CD/MD-CHANGER CONTROL

KRC-288

FM

FM

CRSC DISC

LOUD

T.CALL

LOUD

SCAN

RDM

REP

T.C/D.SCN

M.RDM

ATT

1

2

3

4

5

6

AUD
A.ADJ

AM

ATT

1

2

3

4

5

6

AUD
A.ADJ

AM

KRC-28MR (K)
SRC
PWR OFF

REW
PR

FF
OG

CLK
AUTO AME ADJ

CD/MD-CHANGER CONTROL

KRC-28MR

FM

CRSC DISC

LOUD

SCAN

RDM

REP

T.C/D.SCN

M.RDM

ATT

1

2

3

4

5

6

AUD
A.ADJ

AM

SCREW SET (N99-1632-05)

PLASTIC CABINET ASSY (A02-1486-13)

LEVER (D10-3031-04) x2

MOUNTING HARDWARE ASSY (J21-9491-03)

SCREW SET (N99-1610-15) (Except KRC-28MR)

STAY (J54-0606-04)

DC CORD (E30-xxxx-xx) (Refer to the parts list.)
40%

KRC-208S/218,268/288,28MR

CHMUTE

CHRST

AM ANT RF GND FM+B

CH CON

REQ C

REQ H

DATA C

CH CLK

DATA H

Rch

OSC GND OSC GND OSC GND VT PLL +B IFC OUT SDA SCL DIG GND VDD 5V IF2 GND IF2 +B AUDIO OUT SD S-METER IF1+B IF1 GND FWD/REV FM: 400mV AM: 170mV FF/REW PACK IN MOTOR 8V PLL DATA PLL CLK SD S-METER MUTE ANT CON ACC DET B.U. DET SW5V ILL P. CON L DATA S L DATA L PANEL L CLK HOLD B.U.5V BEEP AMP. STBY

Lch

OSC GND

SCL

SCL

S MUTE

L CE

PL1,2

D1-15

2
J4
8

IC2
Lch Rch AM 8V 1200mV MPX LEVEL MP IN OUT LF

CD/MD CHANGER
Lch Rch

C153,156,R207 AM BPF ANT. J1 C154,157,R206 FM BPF

IC4 POWER IC
B.U.

J2 SP OUT FRONT Lch

A1
FRONT-END
RF GND FM ANT

IC1 Q201 FM+B Q203
FM+B

E-VOL. NC/MPX CH ISO AMP
OUT RF

FRONT Rch

OUT LR AM+B SDA SDA

AM+B

AM+B

REAR Lch
OUT RR

REAR Rch

BLOCK DIAGRAM

SYSTEM u-COM

SVR AMP. MUTE

IC3 MUTE Q450,451
BU5V

STBY SVR MUTE AC GND (BEEP)

PRE MUTE

J5

REAR PRE OUT 1 Lch

ME1 TAPE MECHA. Q370,371 MAIN J2 ANT-CONT. IC5 EQ. AMP.
Lch COM Rch SW5V L TAPE R 55.6mV 8V 8V B.U.5V

2 Rch

M
M1

ANT-CONT. P-CONT.

FM :1781mV AM :546mV TAPE :1681mV CD/MD-CH :3529mV

Q353 P-CON.SW
BU5V

S1
PACK IN

Q320 PANEL 5V SW

Q301 CHANGER RESET SW Q54-57 COM+B Q58-61 ILLUMI. Q51,52

ACC Q50 B.U. DET. Q350-353 P-CONT. P-CONT. B.U.

S3
FWD REV

(X13)
S2
T-MUTE (FF/REW) 4 Lch HD1 Rch B.U.5V

B.U.5V

IC1 LCD DRIVER
10

LCD

KEY

PAN IN SW

RST SW

KRC-208S/218,268/288,28MR (K/K,M/M,K)

KRC-208S/218,268/288,28MR
COMPONENT DESCRIPTION
SYNTHESIZER UNIT (X14-614x-xx)
REF. No.
IC1 IC2 IC3 IC4 IC5 Q50 Q51,52 Q53 Q54,55 Q56,57 Q58,59 Q60,61 Q150 Q151 Q153 Q200 Q201 Q202 Q203 Q260 Q261 Q301 Q320 Q350 Q351,352 Q353 Q370 Q371 Q450,451 FUNCTION SYSTEM µ-COM ELECTRIC VOLUME MUTE POWER IC EQUALIZER AMPLIFIER BACK-UP DETECTION BACK-UP 5V AVR P.ON DRIVER COM+B SW COM+B AVR ILLUMINATION +B SW ILLUMINATION +B AVR ELECTRIC VOLUME MUTE SW SVR DISCHARGE SW PRE MUTE DRIVER FM +B SW FM +B DRIVER AM +B SW AM +B DRIVER MOTOR +B SW MOTOR +B DRIVER CHANGER RESET SW PANEL 5V SW P-CON. DRIVER P-CON. PROTECTION P-CON. SW ANTENNA CONTROL DRIVER ANTENNA CONTROL SW PRE MUTE SW OPERATION Controls system. Controls sound volume. Selects each source. Controls each mute output. Amplifies power so that the speaker can drive audio signal. Equalizer amplifier for cassette tape sound. Stops when the back-up voltage comes less than 9.2V. Works when the back-up works. Works when the power comes. Works when 5V comes. Works when Q54 and Q55 work. Works when the base level of Q58 comes "H". Works when Q58 and Q59 work. Works when the base level comes "H". Works when the base level comes "H". Works when the base level comes "L". Works when the base level comes "H" in FM mode. Works when Q200 works. Works when the base level comes "H" in AM mode. Works when Q203 works. Works when the base level comes "H" in the tape mode. Works when Q260 works. Works when the base level comes "L". Works when the base level comes "L". Works when Q353 works. Works when P-CON output voltage goes down. Works when the base level comes "H". Works when Q371 works. Works when the base level comes "H" in the tuner mode. Works when Q153 works.

3

KRC-208S/218,268/288,28MR
CIRCUIT DESCRIPTION
(X14-) IC1 : µ-COM
PORT No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17-24 25 26 27 28 29,30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45-47 48 49 50 51 52 53 54 55 56 57-60 61 62 63 64 65,66 67 68 69,70 71,72 73 74,75 76 77,78 79 80 PORT NAME XIN GND L DATA L L DATA S L CLK L CE SDA PLL DATA PLL CLK SD DATA C DATA H CH CLK MOTOR SCL AM+B FM+B PACK IN FF/REW GND VDD REQ C MUTE CH CON REQ H SVR AMP STBY AMP MUTE P CON ANT. CON SW5 ILL BEEP ROLL OFF N.CAN SEL1 SEL2 EQ MUTE FWD/REV REMO ACC DET BU DET S METER PANEL GND HOLD VDD GND VDD GND VSS GND XOUT I/O I I O O O I/O I/O O I I O I/O O O O O I I I O O O O O O O O O O O I I I I O I I I I I I I O FUNCTION µ-com clock. (4.5MHz) GND. LCD driver data. LCD driver data. LCD driver clock. LCD driver chip enable. E-volume data. Tuner data. Tuner clock. Tuner signal detection. Changer data. Head unit data. Changer clock. No connection. Mechanism motor. E-volume clock. No connection. AM power supply. FM power supply. Cassette tape pack-in. FF/REW signal. GND. VDD. Request from changer. Mute. Changer control. Request to head unit. Power IC (IC4) discharge control. Power IC (IC4) stand-by. Power IC (IC4) mute. P.CON for external amplifier. Power antenna. Circumambient circuit power supply control. Illumination. No connection. Buzzer. (2KHz) No connection. Destination switch. Destination switch. Destination switch. Destination switch. No connection. Tape equalizer mute. FWD/REV. No connection. Remote control. No connection. ACC detection. Back-up detection. Tuner signal meter. Panel on/off. GND. Clock stop. VDD. GND. No connection. VDD. GND. GND. No connection. GND. µ-com clock. (4.5MHz) "H" : Tuner signal exists. "L" : Tuner signal does not exist. "L" : Pack in. "L" : FF/REW. "L" : Panel on. OPERATING CONDITION

"H" : Ejection. "H" : Play.

"H" : Panel off.

4

KRC-208S/218,268/288,28MR
TEST MODE
1. How to enter the test mode · Reset the unit while holding the "FM" key and preset "6" key. · All indication segments go ON at the beginning of the test mode. 2. How to release the test mode · Simply reset the unit. · (NOTE) The test mode is not canceled by ACC OFF, power OFF, momentary power down or the panel off. 3. Audio adjustment · Set the volume level to -10dB (which is shown as "30" on the display). · Loudness OFF. · The BASS/TREBLE and BALANCE/FADER can be set to the full-boost/full-cut and fullfront/full-rear each by pressing the "Track UP" / "Track DOWN" keys. · Sound coordination doesn't appear for the feed.

5

KRC-208S/218,268/288,28MR
ADJUSTMENT/EINSTELLUNGEN (MECHA.)
Head Angle Adjustment
Head height alignment procedure
· During FWD transport adjust screws F and F' so that line A of 2-LINE TAPE passes trough the center of the head shield plate (core center area) · During RVS transport adjust screws R and R' so that line B of 2-LINE TAPE passes trough the center of the head shield plate core (center area)

(2-LINE TAPE)

· After the alignment above, reverse the transport direction and check the FWD alignment again. If it is deviated, perform alignment again. (Tape used : SCC-1659, manufactured by A-BEX)

B

Einstellung des Kopfwinkels
Vorgehensweise bei der Kopfhöhen-Einstellung
· Während des Bandlaufs in Vorwärtsrichtung die Schrauben F und F' so einstellen, daß die Linie A eines 2-Linien-Bands (2-LINE TAPE) durch die Mitte der Kopfabschirmplatte (Zentrum des Mittelbereichs) verläuft. · Während des Bandlaufs in Rückwärtsrichtung die Schrauben R und R' so einstellen, daß die Linie B eines 2-Linien-Bands (2-LINE TAPE) durch die Mitte der Kopfabschirmplatte (Zentrum des Mittelbereichs) verläuft. · Nachdem die obige Einstellung abgschlossen ist, die Bandlaufrichtung umkehren und die Ausrichtung in Vorwärtsrichtung noch einmal überprüfen. Wenn eine Abweichung festgestellt wird, ist diese Einstellung zu wiederholen. (Verwendetes Band: SCC-1659, hergestellt von A-BEX)

A (FWD)

B

A

(RVS)

TAPE SPEED

HEIGHT (FWD)

F

'

R

'

HEIGHT (RVS)

HEIGHT/AZIMUTH (FWD)

F

R

HEIGHT/AZIMUTH (RVS)

6

A

B

C

D

E

F

G

H

I

J

PC BOARD (Component side view)
1

SWITCH UNIT X13-965x-xx (J74-0963-12)
D13

D12
ATT

W64

SRC

R6

IC4
24 25 W112

W133

C452

2
1

13 11 12 8 4 3 2 9 10 6 7 5 1 2 W12

2 1 R16

8

1
AUTO

J4
W111 R13

J2
W113 W72 W73 C50 W69 W71 E L1

R411

R406

R401

R412

R410

R407

R402

R400

R409

R408

R403

Q56

D50

R454

R455

C160

C162

R152

R153

W28 C159

R65 C161 W76 R66
33

Q450

Q451

C402

Q55

Q151

R151

IC1

L5

L4 W7

R370

D411 D404 D405 Q153
C451

R350

D402 D401
W34 W51 W39 W43 W46

EB W119

Q370
B E

W99 W95 W94

EB

Q60

3

J1 A1
1 2

Q57

D409

R154

R351

E

BE

BE

C401

D403

D408

BE

W98

D370 D350 D51
R55 R50

D9

48

D400
R405 W114 C16

D151

B

D371
C350

D55
R62

49

D351/W104

D53

Q54

D150

D152

R155

Q350

Q61

29

R450 EB

R451

Q1

C18 W115 C17 W50

Q351

R373

R371

C53

C201 C200

R57 C52 R52

C4 BE C1

R19 C5 C2

B

W18

W20

E

Q201

R201

W121

Q200

W120

R203

R129

E

W116 W31 W23

D54 Q50 D100
BE C54 R59 B

Q53

W21 R161 EB

W61 W117 W35 W36 W58

W118 EB

C351

Q51

C163

Q353

R54

B

R200

R58

E

C450

E

D52

W13

W16

C15

B

R352 R353 BE EB

EB W96

W122

D8

D56
EB R60 R67 W102
R12

Q352

Q52

Q203

Q371

C150

W63

B

D352

R202

W74 R120 W77

Q150

W80

W105

R109

C152

C164

Q202

R122

W93

W97

W8

EB

R132

R110

W84

C202

R121 W81

W125

W32

W87

IC3

40

R108

5

15

28

41

W88

L8

W89

W90

C206

R123

W85

1

2

R251 C251 R2

R14

1

7

W60

R18

D6
1

CN1

R205

C6

C10

W44

W47

W49

W40

W52

W57

R8

C8

C4

D200

R126

R127

C155 C157 C156 R206 R207

R131 W38 W42 W45 R119

R105 R106

65 C101 R115 W128 W129 W130

R250 W92 R7

L9

R114

C153

W48

C102

W132

W10

W9

W14

R116

W15

W26

C9

W17

8

W25 W30

W37

1

R104 W1 W2

R102

R103 W27

D261
W56

X1 4.5M R160

W83 R138

PL1

R3 R20 R21

Q301

BE

W131 R321

R320 BE

R1

R301

R303

R305

R322

R304

R324

WH1

D260

R260

E

R306

EB

P1

W65

W70

Q320

6

Q260

W3

6

C14

C13

D3

R261

W78

W5

R323

J3
B

1

C320

W82

Q261

11

1

C321

D1

7

7

8

Refer to the schematic diagram for the value of resistors and capacitors.

AM

FM

12

2

D2

D5 D4

2

80

R2

AUD

REMO GND

W24

R118

C103

1

R5 R3

C5

C3

CN2

C7

IC5

W134

R1

25

C154

R150

IC1

64

C1

C506

24

C250

5

24

1

14

1

R125

W55

25

R137

C2

W135

RESET

14

8

D17

IC2

R4 R6

6

C151

W127

J1

W59

W126

W11

L3

R158

W100

R159

R111

R156

W86

W103

R13

11

BE

EB

BE

Q58

W123

R413

W124 W62

C56

12

W22

Q59

R61

R8

C352

C55

D7

4

R157

EB

5

R11 4

C57

R63

R64

E

C58

EB

64

R372

1

3 16

R452

R453

32

17

W79

CLK

C400

R404

W33

W67

W68

W19

W75

B

D14

D10

2

J5

1

TH1

16

9

D11

1

W41

W54

W101

R5

ED1

SYNTHESIZER UNIT X14-614x-xx (J74-0959-22)

R14 R15

W29

W53

D15

R4

PL2

K

L

M

N

O

P

Q

R

S

T

PC BOARD (Foil side view)
1

SWITCH UNIT X13-965x-xx (J74-0963-12)
D13 D12
ATT

SYNTHESIZER UNIT X14-614x-xx (J74-0959-22)

D15
W101 9 1 16 8

R5 R6

W64

R4 SRC

W53 W54 W41

R15

R14

PL2

W29

ED1

1

D11

2
AUTO

IC4
24 25

TH1 2 1 W133 2 3 4 8 12 11 13 1 5 7 6 10 9

J2
W113 E W69 L1 W73 W72 C50 W71

J4
R13

W12

W112 W111 R16 R411 R407 R406 R408 R410 R409 R403 R412 R401 R400 R402

2

C452 1

1

J5

Q56

W68

W67

D50

B

R455

C162

C160

R153

R65 C161
33

R152

W79 R66

W28

R453

R452 EB

W76

D408

Q451

Q55

R151

Q60

D9

R350

R370

BE

W99 W95

D370 D350 D51
R50

R351

C159

R154

Q151

3
IC1

E

W98

D409 D402 D401 D400
R405 W114 C16

C402

Q57

EB

EB

Q450

C401

D403

R454

B

W51

W46

W39

W43

W34

D55
R64 R62 R63 BE

W94 C53

D371 D351/W104
C350 R55 E R372 R155

D152 D151

W119

C451

D405
R451

W7

D150

B

Q351

R371

W20

R52

W16

R201

W96

Q54
E R54

Q353

W121

C351

Q51

Q53

Q200

W120

Q52

Q50

D100

R129

Q371

R59

Q59

R109

W74

W80

Q58

W86

EB

BE

W62 R156 R158 W59 W60 W125 41 40

Q150

C55 C56

W124

R413

W123 R159

EB W11

R202

R111

R61

W36

W22

B

R12 R8 12

R60

C352

D352

W23

C150

W63

BE

R157

W35

W100

R120

R122

W77

W103

W126

C164

C152

W84

R13

W127 R121

C151 15

Q202

W87

C10 W90

W89

W88

W85

W81

CN1

W49

W55

W52

W40

C8

R8

W57

1

5

R125

R137 C250 64 R250 W92 65 C101 R115 W128 W130 W129

25

W47

W44

C2

W135 1 C153 C154 14 R150 R206 R207 C506 C155

R205

R4 R6

R123

R108

R110

R2

C6

8

14

IC2

C206

1

R18

L8

D6
2 1

IC3

W32

C202

R251 C251

R132

W97

W93

7

1 28

BE

5

W8

L3

W105

Q203

4

W102

Q352

W31

R161

C54

EB

B

BE

W58

BE

E

BE

W117

R203

R67
5

D54

W116

C201

W118

W61

W21

B

D56

R58

R353 EB BE

E

W50

C450 C163

R200

Q201

D52

D8

R352

B

W18

C17

C15

W13

E

C2

W122

R373

C5

C1

EB

R57 C52 BE

BE

W115

C200

R19

C4

Q350

C18

R450

Q153

Q61

C57

D53

C1

C4

R1

R105 W45 W42 W38 R106 R119 R118

R131 R127

R114

IC5

D200

R126

C7

R7

C156

L9

C3

C5

W132

C103

W26

W17

W15

W14

C9

R3 R20 R21 R1

W83 R138 R160 EB

W30 X1 4.5M

R116

W9

8

W37

W25

W10

R2 PL1

R5 R3

C102

W48

Q301

2

D10

D14
CLK

W75

W33

W19

R404

C400

17 16 3 1 64 4 R11 11 6 RESET AUD

32 48 49 29

J1
L5

Q370
E B

BE

D411 D404

L4

A1
1 2

C58

Q1

D7 J1 D5

R14

D17

IC1

24

24 W134 25

C157

CN2
1 2 R104 W1 W2 REMO GND

W24

80

1

D261
W56 W27 W65 R305 R304 R303 R301

R103

R102

R320

W131 R321

Q260

6
Q320
D3
C13 C14 EB

W70 R306 R324

W3

R322

P1
R260

BE R261

6

W82

W78

R323

J3
2 12 11 1

WH1 D260
C321 W5 1

D4 D1

D2

7

Refer to the schematic diagram for the value of resistors and capacitors.

9

Q261 B

C320

E

FM

AM

10

A

B

C

D

E

F

G

H

I

J

GRN REAR L GRN/BLK VIOL/BLK REAR R VIOL

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

WHT WHT/BLK GRY/BLK GRY FRONT R FRONT L

F1 (10A) (F52-0006-05)

J2 16
8 FL+ RL+

15 7 FLRL-

14 6 RRFR-

13 5 RR+ FR+

12 4 P-ANT

11 10 3 P-CON 2 ACC

9 1 GND B.U

SYNTHESIZER UNIT (X14-614x-xx)
MUTE

STBY

GND

GND

GND

GND

FR+

TAB

RL+

RR-

FL+

RRI

FR-

RL-

FRI

RLI

FL7.3V 23 14 13 23

FLI

L1

7.2V 11

7.3V 19

7.3V 9

7.3V 10

7.2V 12

0V 13

7.2V 15

7.3V 16

7.3V 17

0V 18

14.4V 20

3.3V 22

7.3V 3

7.3V 5

14.4V 6

7.3V 7

0V 8

7.2V 14

RED BLK

9 ACC 1 REQ H 2 GND 3 B.U. 4 CON 5 MUTE

10

6

7

5

1

R50 3.3K 1/2W

D50
C50 3300u16 + 0V

R55

47K

BU

YEL

9

1

GND

21

23

C18 0.22u50

C16 0.22u50

C17 0.22u50

2

6

10 13

25

3

7

11

ANT-CON.
R371 1K 1/2W R373

C52 0.01 R57 43K 61

R54 10K

R52 30K

24

22

23

D370

D371

A

D52
3 5

R154 750

R370 4.7K

C15 0.22u50

DC1 (E30-4783-05) KRC-208S/218,28MR (K)

C161 1u50

J4

17

19

7

3

9

5

1

5

9

6 A GND 11 DATA H 7 RST 12 Lch 8 Rch 13 CLK 9 REQ C 10 DATA C

4.9V 4

R16 4.7K

R14 4.7K

R15 4.7K

R13 4.7K

+

D51

D401

R413 100K

D411

10K

GRN REAR L GRN/BLK VIOL/BLK REAR R VIOL

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

WHT WHT/BLK GRY/BLK GRY BLU BLU/WHT RED BLK FRONT R ANT. CONT P. CONT OUT ACC FRONT L

4

8

12 R412 100 R401 10 C401 0.47u50 + R411 100 R410 4.7K R409 4.7K R402 10

D400

47K

2

Q370
R372 22K

Q50 B.U. DET.
62

R156 150K R155 430

13 7 12 11 32 5

Q371 B

1K 1/2W

40

D350 D351
W104 R350 4.7K R351

D53

C402 0.47u50 + R408 1K C400 22u6.3 + R407 4.7K R406 4.7K R405 100K R404 100K

C

Q51,52

B.U. 5V AVR
C53 100u16 + R58 22K

C159 100u10 + C160 1u50 + R151 4.7K

C162 1u50

+

0V

5V

TH1

D151
R153 91K

D150

1K 1/2W R352

R353

R158 33K

47K

100

Q353
47K

C351 0.068

10K

3
CAUTION: For continued safety, replace safety critical components only with manufacturer's recommended parts (refer to parts list). indicates safety critical components. For continued protection against risk of fire, replace only with same type and rating fuse(s). 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.
Q261

R59

D403

Q351
C55 10u10 + Q351,352

R157 100

22K

DC1 (E30-4784-05) KRC-268/288 (M)

1

D402

34

C350 3.3u25 +

Q350

D54
C54 0.01

D152

BU

9

1

GND

R152 1K

YEL

R400 4.7

6

1K 1/2W

Q350 P-CON. DRIVER

5.0V 0V IC3

IC3 1
5V 2 3 4 5

17

19

VDD

P-CON. SW

Q51

Q151

MUTE

21

7

9

0V 24 R306 1K 67

BLU/WHT P. CON/ANT. CON

7.3V 21

1

0V 12 11 10

Q52

36

10K

22K

D408
47K

Q352
C352 0.1u50 +

22K

35

Q59
47K 22K 22K

P-CON. PROTECT.

R60 47K

D409 D405 D404

D352

C56 100u6.3 +

37

R403 100

44

38

6 Q151

9 0V 5V 8

22K

ILLUMI. +B SW D261

Q58
R67 1K

Q53 P.ON. 5V DRIVER
1

SVR DISCHARGE SW
Q153

Q153
22K

0V

5V 7

R160 47K R159 100K

R61 5.6K

Q60 Q61 ILLUMI. +B AVR

39

D56

PRE MUTE DRIVER

41 0V

C164 0.01

GND

4

WH1
T.MUTE GND 6 5

MOTOR+B DRIVER
28 27 15

R125 47K 2 2 28 27 38 37 36 C101 32 5.0V 35 34 0.01 30 0V 29 0V R127 47K 26 25 47K 28 27 26 25 16 R126 15 44 40 39

D260 Q261
R261 10K

MOT GND 4

2SB1565

GND

1

Q260

45 46 47 0V ROLL OFF NOISE CANCELLER SEL1 SEL2 EQ MUTE FWD/REV REMO 5V 0V 0V 5V 0V or 5.0V R110 47K R108 47K 48 49 50 51 52 53 54 55 56 57 R102 2.2K 58 59 60 61 62 63 64 4V 0V ACC DET B.U. DET S METER GND GND PANEL 5V 0V HOLD 0V GND

5V 0V 5V

0V

19 18 17 SCL MOTOR CH CLK 16 15 14 13 12 DATA H 11

R106 1K

DTA114EK 2SA1036K DTA124EK 2SC2412K DTA144EK DTC114YK DTC124EK DTC143TK DTC144EK

MOT +B 3

40

39

38

37

36 SVR 35 REQ H 34 CH CON 33 MUTE

32

31

AMP MUTE

PACK IN

P CON

VDD

ANT CON

AMP STBY

FF/REW

REQ C

FM+B

GND

GND

AM+B

R260 1K

1/2W

24 23 22 21 20

41
10K

41 42 5V 0V 43 44

SW5V ILL BEEP

5V 0V 5V

5V

0V 5V 5V 0V 0V 5V

PACK IN 2

47K

MOTOR +B SW

0V

Q320

PANEL 5V SW
5V 0V 13 12 64 5 4 11 10 9 R322 2.2K R321 27K R320 47K

5

2SB1277 2SB1443

2SA1037K

R120 47K

R103 2.2M

R132 100K

SYSTEM u-COM

5V 0V

GND

GND

GND

GND

VDD

VDD

VSS

LA3161

XOUT

6

Q50,52,57,61 : 2SC2412K or 2SD601A Q51,261 : 2SB1443 Q53 : 2SA1036K Q54,58 : DTC144EK or UN2213 Q55,59,153,352 : DTA124EK or UN2212 Q56,60 : 2SB1655(E,F) or 2SB1565(E,F) Q150,200,202 : DTC124EK or UN2212 Q151,260,353,371 : DTC114YK or UN2214 Q201,203,350,370 : 2SB1277(Q,R) Q301 : DTA144EK or UN2113 Q320,351 : 2SA1037K Q450,451 : DTC143TK or UN2216

DATA C 10 SD 9 PLL CLK 8 PLL DATA SDA L CE L CLK L DATA S L DATA L GND XIN 7 6 5 4 3 2 0V 1 X1 4.5MHz

R116 4.7K R119 2.2K R118 2.2K

R301 1K

R303 1K

R305 1K

D
R104 100K

R129 100K

1

D100
61 54 62 63 R138 22K

5V

5V 0V

5V 0V

6 5 4 3 C102 22P

11

9 10 8 L DATA L L CE L CLK

R304 1K

8 R105 R114 22K 1K 7 R131 10K

C320 47u6.3 + R324 10

7 6 u GND

R323 47

IC1 IC2 IC3 IC4 IC5

: : : : :

TDA7461ND HD74HC27FP TDA7384A LA3161

L DATA S

PAN 5W

PAN5V

RESET

69

71

5.0V 68

5.0V 73

0V 79

65

66

67

70

72

0V 75

0V 76

77

78

SIGNAL LINE GND LINE B LINE

CHANGER RESET SW

47K 47K

0V 64 0V

R115 1K

Q301

Q301

R137 47K

0V 74

80

4V

0V

C103 22P

7

67

ESD GND

LAMP +B

ILL GND

D50 : S2V20 A D51,405,411 : MA4068(N)-M D52 : MA4051-L D53,260,261,350,351,370,371 : AM01Z or ERA15-01 D54 : MA4056(N)-M D55 : MA4091(N)-L D56 : MA4110-L D100,150-152,352 : 1SS133 D200 : MA4051(N)-M D400-404,408,409 : MA4062-L

R122 47K

CN2
2

R123 47k R121 47K

IC1

Q320
6 3

5 4

25 5V 3 2

2

13

11

12

8

4

3

2

CD

J4

TOP VIEW

GND

VCC

VCC

SVR

RR+

POWER IC

AC GND

1

IC4

1 P1

J3 12

K
REAR PREOUT
1 Rch 2 Lch

L

M

N

O

J5 ANT
C452 0.01 R454 100 R455 100 L4 52mH R201 22K

R452 30K

R453 30K

FM+B DRIVER

J1 Q201 FRONT-END A1

Q450
4.7K

Q451
R200 1K
4.7K

AM+B DRIVER

R203 22K

1 2

RF GND FM ANT

FM+B SW
R450 270

PRE MUTE SW
+

R451 270

26

22K 22K

R202 1K

Q203
C200 0.01

L5 4.7uH

Q200
+ 25 L3 4.7uH

AM+B SW Q202
22K 22K

C152 26 4.0V 1u50 CREF + 25 25 OUT LF 24 24 OUT RF

IC2
28 AC OUT L

C150 47u10 + C151 0.01 21 20

23

22

16

7

Q150
22K

R205

22K

150

3 AM ANT 4 OSC GND 5 FM+B 6 AM+B 7 OSC GND 8 OSC GND 9 OSC GND 10 OSC GND 11 VT 12 PLL+B 13 IFC OUT 8 14 15 16 17 SDA SCL DIG GND VDD 5V IF2 GND IF2+B AUDIO OUT SD S-METER IF1+B IF1 GND

C450 10u16

C451 10u16

C201 0.01

L9 4.7uH

27

23

22

19

18

S MUTE 16 MUX R 15 MUX L

17

Q150

AC OUT R

GND

VDD

OUT RR

OUT LR

8.2V

0V 5V 0V

SDA

SCL

E-VOLUME MUTE SW

D200

9

3.4V

C206 47u10 +

18 19 20 10 63 21 22 23 23

5V LEVEL 1

0V MP OUT 4.8V 14 C506 0.1 MP IN 4.0V 13

1 AC IN L 2 C14 AC IN R 0.22 4.0V 3 TAPE R C13 0.22 4.0V 4 TAPE L 4.0V 5 CDR 4.0V 6 CDRG 4.0V 7 CDL 4.0V 8 CDLG 9 PHONE 4.0V 10 AM

4.0V 11

MPX

IC2

ELECTRIC VOLUME

4.0V 12 C157 150P C156 0.033 C155 0.1

3

4

5

6

7

C153 0.015

R207 2.7K

R206 4.7K

C154 0.22

R150 4.7K

54 R65 2.2 1/2W R66 2.2 1/2W

Q56
4 3

COM+B AVR
R63 1K

Q57
R64 1K C7 0.022

Q55
22K 22K

ME1 (D40-1136-05)
C8 0.022 R7 120K R250 10 R8 120K C251 0.047 R3 C9 100 100u10 R4 C10 100 100u10 R251 10K

CN1
1 2 3 FWD/REV GND Ref.99

S3

FWD

S2
6 T.MUTE GND MOT GND

C57 100u16 +

C250 100u10 +

R5 6.8K

R6 6.8K

47K 47K

C58 100u10 +

Q54

D55

Q54,55

COM +B SW
R62 10K

REV HEAD R Rch HEAD COM

5 4

+

+

C4 47u6.3

C2 1500P

R2 22K

+

4 C1 1500P C5 100P C3 47u6.3 + C6 8 1.3V 7 0.8V 6 3.5V 4 8.2V 3 3.5V 2 0.8V 5 0V 1 1.3V 100P R1 22K

HD1 S1
Lch

M1 M

3

MOT+B

5

HEAD L

2 1

PACK IN GND

GND

EQUALIZER AMPLIFIER

KRC-208S/218,268/288,28MR (K/K,M/M,K) (1/2)

R OUT

L OUT

R NF

L NF

VCC

R IN

L IN

IC5

X13J1 2/2

A
(X14-614x-xxx)
MODEL NAME KRC-208S (K) KRC-288 (M) KRC-218 (K) KRC-268 (M) KRC-28MR (K) UNIT NO. 0-10 0-21 0-11 0-22 0-12

A

B

C D
YES NO YES NO YES

R120 R121 R122 R123 CN2 W104 NO NO YES YES NO YES YES NO NO YES NO YES NO YES NO YES NO NO NO NO YES YES NO NO NO NO YES YES YES NO

IC1 LC72366-9592 LC72366-9592 LC72366-9592 LC72366-9592 LC72366-9593

YES NO YES YES NO NO NO YES YES NO

KRC-208S/218,268/288,28MR

4

COM3

COM2

21

29

19

11

28

27

26

25

23

22

20

18

17

16

15

13

12

10

9

8

7

6

5

3

24

14

4

2

CO3

16

15

13

12

18

14

KS5

KS3

KS4

KS2

KS1

CO3

CO2

CO1

37

36

35

PANEL DETECTION
1 R11 100 R12 100 9 R13 100 R14 100 7

Q1
10K

34

33

17

CO2

37

36

35

33

32

30

29

28

27

26

25

23

22

34

24

20

19

CO1

31

21

1

COM1

S16

S15

S14

S13

S12

S37

S36

S35

S34

S33

S32

S31

S30

S29

S28

S27

S26

S25

S24

S23

S22

S21

S20

S19

S18

S17

48

47

46

45

44

43

42

41

40

39

38

37

36

35

34

10K

COM3

COM2

COM1

KS1

KS5

KS4

KS2

S39

S38

S36

S35

KS3

S40

S37

49 64 63 62 61 KI1 KI2 KI3 KI4 50 51 52 53 54 55 R8 4.7

L DATA S

11

KS6 KI1 KI2 KI3 KI4 KI5 TEST VDD 5.0V

S34

S33

PANEL SW 12

33

R18 1K

KEY

S10

S12

S13

S14

S15

1

10

11

9

12

13

15

14

16

2

3

5

6

7

4

8

S16

S11

S2

S3

S4

S5

S6

S7

S8

S9

12

13

15

14

16

KI3

KI4

D9

PL2

D14

D12

D6

D1

KRC-208S/218,268/288,28MR (K/K,M/M,K) (2/2)
(X13-965x-xx)

D4

D10

D7

D2

MODEL NAME KRC-208S (K) KRC-28MR (K) KRC-288 (M) KRC-218 (K) KRC-268 (M) 330

UNIT No. 0-10 0-11

PL1,2 B30-1485-05 (GREEN) B30-1483-05 (MILKY WHITE)

IC1 Q1 D1-13,15 D14 D17 ED1

: LC75853NE : DTA114EK : B30-1565-05 : B30-2025-05 : MA3062-M : B38-1022-05

KI2

KI1

1

PL1

D15

D13

D11

D8

D5

D3

R21 13

R20 13

470

470

330

330

470

R6

R5

R3

R4

R2

R1

7
CAUTION: For continued safety, replace safety critical components only with manufacturer's recommended parts (refer to parts list). indicates safety critical components. For continued protection against risk of fire, replace only with same type and rating fuse(s). 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.
J1 X14J3 1/2
L CLK 10 L CE L DATA L N.C. 8

5

3

1

SWITCH UNIT (X13-965x-xx)
ED1

6

2

P Q

S32 S31 5V 0V 5V 0V S30 S29 S28 S27 S26

32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17

32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17

1

AUTO

VOL-

VOL+
KS1

A

u-GND PAN 5V

6 5

56

RST
RST ILL-GND ILL+B 2 4 3

C2 0.01 C4 0.047 C1 0.047 57 58 59 R19 68K C5 820P 61 62 63 64 5V 0V 60 61 62 63 64 VDD2 3.3V VDD1 1.7V VSS 5V 3.3V OSC DATA L CE CLK DATA S 5V 0V 3.3V 1.7V 5V 0V 5V 0V

IC1
LCD DRIVER

S25 S24 S23 S22 S21 S20 S19 S18 S17

2

CLK

ATT

SRC
KS2

R

KRC-208S/218,268/288,28MR

D17
ESD-GND 1

6

T.UP

AM
KS3

AUDIO

FM

T.DOWN
KS4

5V 0V

5

4

3

S

KS5

GND LINE B LINE

T

KRC-208S/218,268/288,28MR
EXPLODED VIEW (MECHANISM)
A B

16 18 17

19
1

102

20 M1

56

100 37 36 38 HD1 106x2 104

5 22

6

26

23 112
2

7 113 34 112 10 40 105x2 113 35 9 57 39

25

1

58

53 39 52 115

114 99

12
3

4 111 102 103 111 31 101

33 14 102

102

31 54 D40-1136-05 (MECHA.) KRC-208S/218,268/288,28MR (K/K,M/M,K)

Parts with exploded numbers larger than 700 are not supplied.

15

KRC-208S/218,268/288,28MR
EXPLODED VIEW (UNIT)
C D

DC1

242

B

A

201

1

207 221 x2
(X14-) 776 B D

(X14-) 778 E

B

262

261
(Except KRC-28MR)

243

(X14-) 777

737

Fx2

A M3x4 3x5 B 3x10 C 3x8 D 3x20 E 2.6x6 F

: N30-3004-46 : N83-3005-46 : N64-3010-46 : N80-3008-46 : N83-3020-46 : N86-2606-46

Cx2

ME1

726 (X14-)

J1
2
(X14-) B

(X14-)

J5
(X14-)

KRC-208S KRC-288 KRC-28MR only
(X14-)

A1

J4

F1

J2
(X14-) (X14-)

L1
767

B

729

244
A

3

216
B

Refer to the following page.

703

Ax2 Ax2

UNIT (1/2) KRC-208S/218,268/288,28MR (K/K,M/M,K)

16

Parts with exploded numbers larger than 700 are not supplied.

KRC-208S/218,268/288,28MR
EXPLODED VIEW (TDF)
E F

G H J

2x6 : N80-2006-46 1.5 : N29-0205-04 2x8 : N80-2008-45

204 222 234

224

233

1

223
H 705

231 208

Jx2 J

766

206

(X13-) (X13-)

272

Jx2

273
(X13-) (X13-)

2
(X13-) 775

(X13-)

274

271

(X13-)

235 252

ED1

253
G

227 232 232 255 232

PA1 251 259 256
710

241

G

254 258 257

3

UNIT (2/2) KRC-208S/218,268/288,28MR (K/K,M/M,K)

Parts with exploded numbers larger than 700 are not supplied.

17

KRC-208S/218,268/288,28MR
PARTS LIST
New Parts Parts without Part 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 Ref. No. d e Parts No. Description d w A d d 3E 3E 3E 3E 1C 1C 1C 1D 1D 3E 1F 2F N e w Destination Ref. No. 256 257 258 259 261 261 262 A B G H J Parts No. K25-1101-03 K25-1102-03 K25-1103-03 K25-1108-03 N99-1610-15 N99-1610-15 N99-1632-05 N30-3004-46 N83-3005-46 N80-2006-46 N29-0205-04 N80-2008-45 Description KNOB (CLK,AUTO) KNOB (FM,AM,UP,DOWN,AUD) KNOB (1,2,3,4,5,6,ATT) KNOB (VOL) SCREW SET (1-SCREW) SCREW SET (1-SCREW) SCREW SET (9-SCREW) PAN HEAD MACHINE SCREW PAN HEAD TAPTITE SCREW PAN HEAD TAPTITE SCREW RETAINING RING PAN HEAD TAPTITE SCREW KK2M1 M2 Destination

KRC-208S/218,268/288,28MR
201 204 206 207 208 PA1 PA1 PA1 PA1 PA1 216 216 216 221 222 223 224 ME1 227 DC1 DC1 F1 F1 231 232 233 234 235 241 242 243 244 251 252 253 254 255 1C 1F 1F 1F 2C 1C A02-1486-13 1F A22-2386-03 2F A46-1654-01 1D A52-0756-02 1F A53-1638-13 3E 3E 3E 3E 3E 3C 3C 3C A64-1914-02 A64-1915-02 A64-1916-02 A64-1917-02 A64-1946-02 B07-2169-02 B07-2181-02 B07-2181-02 B46-0100-50 B46-0606-04 B58-1344-04 B64-1538-00 B64-1539-00 B64-1589-00 D10-3031-04 D10-4446-03 D10-4447-03 D21-2329-04 D40-1136-05 PLASTIC CABINET ASSY SUB PANEL ASSY REAR COVER TOP PLATE CASSETTE LID PANEL ASSY PANEL ASSY PANEL ASSY PANEL ASSY PANEL ASSY ESCUTCHEON ESCUTCHEON ESCUTCHEON WARRANTY CARD ID CARD CAUTION CARD INST. MANUAL (ENG,FRE,SPA,POR) INST. MANUAL (ENG,CHI) INST. MANUAL (ARABIC) LEVER LEVER LEVER SHAFT CASSETTE MECHANISM ASSY CONDUCTIVE RUBBER DC CORD DC CORD FUSE (MINI BLADE TYPE) (10A) FUSE (MINI BLADE TYPE) (10A) TORSION COIL SPRING COMPRESSION SPRING TORSION COIL SPRING EXTENSION SPRING COMPRESSION SPRING POLYSTYRENE FOAMED FIXTURE PROTECTION BAG (280X450X0.03) PROTECTION BAG (180X300X0.03) ITEM CARTON CASE (KRC-208S) K ITEM CARTON CASE (KRC-28MR) K1 ITEM CARTON CASE (KRC-218) ITEM CARTON CASE (KRC-288) ITEM CARTON CASE (KRC-268) HOLDER MOUNTING HARDWARE ASSY STAY WIRE BAND KNOB (SRC) KNOB (RELEASE) KNOB (EJECT) KNOB (FF) KNOB (REW) K2 M1 M2 K K1 K2 M1 M2 K1 KK2M1 M2

SWITCH UNIT (X13-965x-xx)
271 272 273 D1 -13 D14 D15 ED1 PL1 ,2 PL1 ,2 C1 C2 C4 C5 2E B11-0991-04 2E B11-0992-04 2E B19-2019-03 B30-1565-05 B30-2025-05 B30-1565-05 2E B38-1022-05 B30-1483-05 B30-1485-05 CK73FB1H473K CK73FB1H103K CK73FB1H473K CK73FB1H821K 2E E29-1600-04 E59-0831-05 RK73EB2B331J RK73EB2B471J RK73EB2B331J RK73EB2B471J RK73FB2A4R7J RK73FB2A101J RK73FB2A102J RK73FB2A683J RK73EB2B130J MA3062-M LC75853NE DTA114EK UN2111 OPTICAL DIFFUSER REFLECTION SHEET LIGHTING BOARD LED LED LED LIQUID CRYSTAL LAMP (5.5V 0.125A) LAMP (5.5V 0.125A) CHIP C CHIP C CHIP C CHIP C 0.047UF 0.010UF 0.047UF 820PF K K K K

K KK1K2 M1M2 M1M2

K2M1M2 KK1

3F E29-1599-02 1C E30-4783-05 1C E30-4784-05 2D 2D F52-0006-05 F52-0011-05

KK1K2 M1M2

274 J1 R1 R2 R3 ,4 R5 ,6 R8 R11 -14 R18 R19 R20 ,21 D17 IC1 Q1 Q1

CONDUCTIVE RUBBER RECTANGULAR PLUG CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R 330 470 330 470 4.7 100 1.0K 68K 13 J J J J J J J J J 1/8W 1/8W 1/8W 1/8W 1/10W 1/10W 1/10W 1/10W 1/8W

1F G01-2525-04 3F G01-2793-14 1F G01-2987-04 1F G01-2988-04 2F G01-2990-04 H10-4685-02 H25-0329-04 H25-0337-04 H54-1596-03 H54-1597-03 H54-1598-03 H54-1600-03 H54-1601-03 3E J19-4980-02 1C J21-9491-03 1C J54-0606-04 3D J61-0307-05 3E 2E 3F 3F 3F K24-3542-04 K24-3544-04 K24-3545-04 K24-3546-04 K24-3547-04

ZENER DIODE MOS-IC DIGITAL TRANSISTOR DIGITAL TRANSISTOR

SYNTHESIZER UNIT (X14-614x-xx)
C1 C3 C5 C7 C9 ,2 ,4 ,6 ,8 ,10 CK73GB1H152K CE04CW0J470M CC73GCH1H101J CK73GB1H223K CE04CW1A101M CK73FB1C224K C90-5296-05 C90-5236-05 CK73GB1H103K CE04CW1C101M CK73GB1H103K M1 : KRC-288 M2 : KRC-268 CHIP C ELECTRO CHIP C CHIP C ELECTRO CHIP C NP-ELECT ELECTRO CHIP C ELECTRO CHIP C 1500PF 47UF 100PF 0.022UF 100UF 0.22UF 0.22UF 3300UF 0.010UF 100UF 0.010UF K 6.3WV J K 10WV K 50WV 16WV K 16WV K

C13 ,14 C15 -18 C50 C52 C53 C54

E : Europe

K : North America

M : Other Areas

K : KRC-208S K1 : KRC-28MR K2 : KRC-218

indicates safety critical components.

18

KRC-208S/218,268/288,28MR
PARTS LIST
New Parts Parts without Part 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 Ref. No. d e Parts No. Description d w C55 C90-2594-05 ELECTRO 10UF C56 CE04CW0J101M ELECTRO 100UF C57 CE04CW1C101M ELECTRO 100UF C58 CE04CW1A101M ELECTRO 100UF C101 CK73GB1H103K CHIP C 0.010UF C102,103 C150 C151 C152 C153 C154 C155 C156 C157 C159 C160 C161 C162 C164 C200,201 C206 C250 C251 C320 C350 C351 C352 C400 C401,402 C450,451 C452 C506 CN1 CN2 J1 J2 J3 J4 J5 P1 WH1 L1 L3 L4 L5 L9 X1 X1 B C D E F 1D 2D 1D 1D 2D CC73FCH1H220J CE04CW1A470M CK73FB1H103K C90-2608-05 CK73GB1E153K CK73FB1C224K CK73FB1C104K CK73FB1E333K CC73FCH1H151J CE04CW1A101M C90-2608-05 C90-2935-05 C90-2608-05 CK73FB1H103K CK73FB1H103K CE04DW1A470M CE04CW1A101M CK73GB1C473K CE04CW0J470M C90-2598-05 CK73FB1E683K C90-2602-05 CE04CW0J220M C90-2606-05 C90-2597-05 CK73FB1H103K CK73FB1C104K E40-3240-05 E40-3246-05 2D E04-0312-05 2D E58-0863-15 E58-0888-05 2D 2D E56-0834-05 E63-0013-05 E23-0745-05 E39-0344-05 L33-1063-15 L40-4795-91 L33-1123-05 L40-4795-91 L40-4795-91 L77-1163-05 L77-1165-05 N83-3005-46 N64-3010-46 N80-3008-46 N83-3020-46 N86-2606-46 CHIP C ELECTRO CHIP C ELECTRO CHIP C CHIP C CHIP C CHIP C CHIP C ELECTRO ELECTRO ELECTRO ELECTRO CHIP C CHIP C ELECTRO ELECTRO CHIP C ELECTRO ELECTRO CHIP C ELECTRO ELECTRO ELECTRO ELECTRO CHIP C CHIP C 22PF 47UF 0.010UF 1.0UF 0.015UF 0.22UF 0.10UF 0.033UF 150PF 100UF 1.0UF 1.0UF 1.0UF 0.010UF 0.010UF 47UF 100UF 0.047UF 47UF 3.3UF 0.068UF 0.10UF 22UF 0.47UF 10UF 0.010UF 0.10UF (X14-614x-xx) Destination 10WV 6.3WV 16WV 10WV K J 10WV K 50WV K K K K J 10WV 50WV 50WV 50WV K K 10WV 10WV K 6.3WV 25WV K 50WV 6.3WV KK1M1 50WV KK1M1 16WV K K Ref. No. R1 ,2 R3 ,4 R5 ,6 R7 ,8 R13 R14 ,15 R16 R50 R52 R54 R55 R57 R58 R59 R60 R61 R62 R63 ,64 R65 ,66 R67 R102 R103 R104 R105,106 R108 R110 R114 R115 R116 R118,119 R120 R121 R122 R123 R125 R126,127 R129 R131 R132 R137 R138 R150 R151 R152 R153 R154 R155 R156 R157 R158 R159 R160 R200 R201 R202 K : KRC-208S K1 : KRC-28MR K2 : KRC-218 A N d e d w Parts No. RK73GB1J223J RK73GB1J101J RK73GB1J682J RK73GB1J124J RK73EB2B472J RK73GB1J472J RK73EB2B472J RD14DB2H332J RK73FB2A303J RK73FB2A103J RD14BB2C473J RK73GB1J433J RK73FB2A223J RK73GB1J101J RK73FB2A473J RK73FB2A562J RK73GB1J103J RK73GB1J102J RD14DB2H2R2J RD14BB2C102J RK73FB2A222J RK73FB2A225J RK73FB2A104J RK73FB2A102J RK73GB1J473J RK73FB2A473J RK73EB2B223J RK73FB2A102J RD14BB2C472J RK73FB2A222J RK73FB2A473J RK73FB2A473J RK73FB2A473J RK73FB2A473J RK73GB1J473J RK73EB2B473J RK73GB1J104J RK73FB2A103J RD14BB2C104J RK73FB2A473J RD14BB2C223J RK73FB2A472J RK73GB1J472J RK73FB2A102J RK73FB2A913J RK73FB2A751J RK73GB1J431J RK73FB2A154J RK73EB2B101J RK73FB2A333J RK73GB1J104J RK73GB1J473J RK73EB2B102J RK73EB2B223J RD14BB2C102J M1 : KRC-288 M2 : KRC-268 indicates safety critical components. CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R SMALL-RD CHIP R CHIP R RD CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R SMALL-RD RD CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R RD CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R RD CHIP R RD 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 RD Description 22K 100 6.8K 120K 4.7K 4.7K 4.7K 3.3K 30K 10K 47K 43K 22K 100 47K 5.6K 10K 1.0K 2.2 1.0K 2.2K 2.2M 100K 1.0K 47K 47K 22K 1.0K 4.7K 2.2K 47K 47K 47K 47K 47K 47K 100K 10K 100K 47K 22K 4.7K 4.7K 1.0K 91K 750 430 150K 100 33K 100K 47K 1.0K 22K 1.0K 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 J 1/16W 1/16W 1/16W 1/16W 1/8W 1/16W 1/8W 1/2W 1/10W 1/10W 1/6W 1/16W 1/10W 1/16W 1/10W 1/10W 1/16W 1/16W 1/2W 1/6W 1/10W KK1K2 1/10W 1/10W KK1K2 1/10W 1/16W 1/10W 1/8W 1/10W 1/6W 1/10W 1/10W 1/10W 1/10W 1/10W 1/16W 1/8W 1/16W 1/10W 1/6W 1/10W 1/6W 1/10W 1/16W 1/10W 1/10W 1/10W 1/16W 1/10W 1/8W 1/10W 1/16W 1/16W 1/8W 1/8W 1/6W K2M2 M1KK1 M1M2 KK1K2 Destination

PIN ASSY PIN ASSY K1 RF COAXIAL CABLE RECEPTACLE RECTANGULAR RECEPTACLE RECTANGULAR RECEPTACLE CYLINDRICAL RECEPTACLE PIN JACK TERMINAL WIRING HARNESS CHOKE COIL SMALL FIXED INDUCTOR (4.7UH,J) LINE FILTER COIL (52MH) SMALL FIXED INDUCTOR (4.7UH,J) SMALL FIXED INDUCTOR (4.7UH,J) CRYSTAL RESONATOR (4.5MHZ) CRYSTAL RESONATOR (4.5MHZ) PAN HEAD TAPTITE SCREW PAN HEAD SEMS SCREW PAN HEAD TAPTITE SCREW PAN HEAD TAPTITE SCREW BINDING HEAD TAPTITE SCREW KK1M1

2D

E : Europe

K : North America

M : Other Areas

19

KRC-208S/218,268/288,28MR
PARTS LIST
New Parts Parts without Part 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 Ref. No. d e Parts No. Description d w R203 RK73EB2B223J CHIP R 22K J R205 RK73EB2B151J CHIP R 150 J R206 RK73FB2A472J CHIP R 4.7K J R207 RK73FB2A272J CHIP R 2.7K J R250 RK73FB2A100J CHIP R 10 J R251 R260 R261 R301 R303-306 R320 R321 R322 R323 R324 R350 R351 R352 R353 R370 R371 R372 R373 R400 R401,402 R403 R404 R405 R406,407 R408 R409,410 R411,412 R413 R450,451 R452,453 R454,455 W111-114 W115 W116 W117 W118 W119 W120,121 W122 W123 W124,125 W127-133 W134 D50 D51 D52 D53 D53 RK73GB1J103J RD14DB2H102J RD14BB2C103J RK73EB2B102J RK73EB2B102J RK73FB2A473J RK73EB2B273J RK73EB2B222J RK73EB2B470J RK73EB2B100J RD14BB2C472J RD14DB2H102J RK73FB2A223J RD14DB2H102J RD14BB2C472J RD14DB2H102J RK73FB2A223J RD14DB2H102J RK73EB2B4R7J RK73EB2B100J RK73EB2B101J RK73FB2A104J RK73EB2B104J RK73EB2B472J RK73EB2B102J RK73EB2B472J RK73EB2B101J RK73GB1J104J RK73FB2A271J RK73FB2A303J RK73EB2B101J R92-2053-05 R92-2053-05 R92-2052-05 R92-2053-05 R92-2052-05 R92-2053-05 R92-2052-05 R92-2053-05 R92-2052-05 R92-2052-05 R92-2053-05 R92-2052-05 S2V20*A MA4068(N)-M MA4051-L AM01Z ERA15-01 CHIP R SMALL-RD RD CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R RD SMALL-RD CHIP R SMALL-RD RD SMALL-RD CHIP R SMALL-RD 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 DIODE ZENER DIODE ZENER DIODE DIODE DIODE 10K 1.0K 10K 1.0K 1.0K 47K 27K 2.2K 47 10 4.7K 1.0K 22K 1.0K 4.7K 1.0K 22K 1.0K 4.7 10 100 100K 100K 4.7K 1.0K 4.7K 100 100K 270 30K 100 0 0 0 0 0 0 0 0 0 0 0 0 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 (X14-614x-xx) Destination 1/8W 1/8W 1/10W 1/10W 1/10W 1/16W 1/2W 1/6W 1/8W 1/8W 1/10W 1/8W 1/8W 1/8W 1/8W 1/6W KK1K2 1/2W 1/10W 1/2W 1/6W M1M2 1/2W 1/10W 1/2W 1/8W 1/8W 1/8W 1/10W 1/8W 1/8W 1/8W M1M2 M1M2 M1M2 KK1M1 KK1M1 KK1M1 KK1M1 KK1M1 KK1M1 KK1M1 Ref. No. D54 D55 D56 D100 D150-152 D200 D260,261 D260,261 D350,351 D350,351 D352 D370,371 D370,371 D400-404 D405 D408,409 D411 IC1 IC1 IC1 IC2 IC3 IC4 IC5 Q50 Q50 Q51 Q52 Q52 Q53 Q54 Q54 Q55 Q55 Q56 Q56 Q57 Q57 Q58 Q58 Q59 Q59 Q60 Q60 Q61 Q61 Q150 Q150 Q151 Q151 Q153 Q153 Q200 Q200 Q201 K : KRC-208S K1 : KRC-28MR K2 : KRC-218 A N d e d w Parts No. MA4056(N)-M MA4091(N)-L MA4110-L 1SS133 1SS133 MA4051(N)-M AM01Z ERA15-01 AM01Z ERA15-01 1SS133 AM01Z ERA15-01 MA4062-L MA4068(N)-M MA4062-L MA4068(N)-M LC72366-9592 LC72366-9592 LC72366-9593 TDA7461ND HD74HC27FP TDA7384A LA3161 2SC2412K 2SD601A 2SB1443 2SC2412K 2SD601A 2SA1036K DTC144EK UN2213 DTA124EK UN2112 2SB1565(E,F) 2SB1655(E,F) 2SC2412K 2SD601A DTC144EK UN2213 DTA124EK UN2112 2SB1565(E,F) 2SB1655(E,F) 2SC2412K 2SD601A DTC124EK UN2212 DTC114YK UN2214 DTA124EK UN2112 DTC124EK UN2212 2SB1277(Q,R) M1 : KRC-288 M2 : KRC-268 indicates safety critical components. Description ZENER DIODE ZENER DIODE ZENER DIODE DIODE DIODE ZENER DIODE DIODE DIODE DIODE DIODE DIODE DIODE DIODE ZENER DIODE ZENER DIODE ZENER DIODE ZENER DIODE MI-COM IC MI-COM IC MI-COM IC ANALOGUE IC MOS-IC ANALOGUE IC IC(PREAMP X2) TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR DIGITAL TRANSISTOR DIGITAL TRANSISTOR DIGITAL TRANSISTOR DIGITAL TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR DIGITAL TRANSISTOR DIGITAL TRANSISTOR DIGITAL TRANSISTOR DIGITAL TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR DIGITAL TRANSISTOR DIGITAL TRANSISTOR DIGITAL TRANSISTOR DIGITAL TRANSISTOR DIGITAL TRANSISTOR DIGITAL TRANSISTOR DIGITAL TRANSISTOR DIGITAL TRANSISTOR TRANSISTOR Destination

KK1K2 KK1K2

M1M2 M1M2 KK1M1 KK1M1 KK1M1 KK1M1 KK2M1 M2 K1

1/8W KK1M1 1/8W KK1M1 1/16W KK1M1 1/10W 1/10W 1/8W 1/8W 1/8W KK1M1 1/10W 1/8W 1/10W M1M2 1/8W 1/10W 1/8W 1/10W 1/10W KK1M1 1/8W 1/10W

E : Europe

K : North America

M : Other Areas

20

KRC-208S/218,268/288,28MR
PARTS LIST
New Parts Parts without Part 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 Ref. No. d e Parts No. Description d w Q202 DTC124EK DIGITAL TRANSISTOR Q202 UN2212 DIGITAL TRANSISTOR Q203 2SB1277(Q,R) TRANSISTOR Q260 DTC114YK DIGITAL TRANSISTOR Q260 UN2214 DIGITAL TRANSISTOR Q261 Q301 Q301 Q320 Q350 Q351 Q352 Q352 Q353 Q353 Q370 Q371 Q371 Q450,451 Q450,451 TH1 A1 2D 2SB1443 DTA144EK UN2113 2SA1037K 2SB1277(Q,R) 2SA1037K DTA124EK UN2112 DTC114YK UN2214 2SB1277(Q,R) DTC114YK UN2214 DTC143TK UN2216 TRANSISTOR DIGITAL TRANSISTOR DIGITAL TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR DIGITAL TRANSISTOR DIGITAL TRANSISTOR DIGITAL TRANSISTOR DIGITAL TRANSISTOR TRANSISTOR DIGITAL TRANSISTOR DIGITAL TRANSISTOR DIGITAL TRANSISTOR DIGITAL TRANSISTOR M1M2 M1M2 M1M2 (D40-1136-05) Destination A N Ref. No. d e Parts No. d w 56 1B D10-4105-08 57 2B D10-4104-08 58 2B G01-2831-08 99 3B E39-0181-08 100 1B J11-0618-08 101 102 103 104 105 106 111 112 113 114 115 HD1 M1 3B 3A 3A 1B 2A 1A 3A 2A 2A 3A 2B N09-4328-08 N09-4326-08 N09-4191-08 N09-4192-08 N09-4058-08 N09-4109-08 N19-2082-08 N19-2083-08 N19-2084-08 N19-2043-08 N19-2038-08 Description ARM ASSY ARM TENSION COIL SPRING WIRE HARNESS CLAMPER SCREW SCREW SCREW SCREW SCREW SCREW FLAT WASHER FLAT WASHER FLAT WASHER FLAT WASHER FLAT WASHER PLAYBACK HEAD MOTOR ASSY Destination

1B T31-0229-08 1A T42-1025-08

PTH9C42BD471Q POSITIVE RESISTOR X86-3160-11 FRONT-END UNIT

CASSETTE MECHANISM ASSY (D40-1136-05)
1 4 5 6 7 9 10 12 14 16 17 18 19 20 22 23 25 26 31 33 34 35 36 37 38 39 40 52 53 54 2A 3B 2A 2B 2B 2B 2A 3A 3A 1B 1A 1B 1A 1A 2A 2A 2B 2B 3A 3A 2B 2B 1A 1A 1A 2A 2A 2A 2B 3B A10-4328-08 J26-4017-08 J21-7778-08 D10-4091-08 D13-1323-08 D10-4200-08 D10-4201-08 A11-0930-08 J26-4018-08 G01-2826-08 D10-4094-08 D10-4095-08 D10-4096-08 J19-4736-08 G01-2827-08 D10-4097-08 D10-4098-08 G09-2019-08 D01-0608-08 G01-2828-08 G01-2829-08 D10-4099-08 D10-4100-08 D14-0682-08 D10-4101-08 G01-2830-08 D10-4102-08 D13-1110-08 D15-0909-08 D16-0606-08 CHASISS CALKING ASSY PRINTED WIRING BOARD ASSY MOUNTING HARDWARE SLIDER GEAR ARM ASSY (F) ARM ASSY (R) SUB CHASSIS CALKING ASSY PRINTED WIRING BOARD ASSY TORSION COIL SPRING SLIDER SLIDER ARM HOLDER ASSY TENSION COIL SPRING LEVER SLIDER SPRING FLYWHEEL ASSY TENSION COIL SPRING TENSION COIL SPRING ARM ARM ROLLER LEVER COMPRESSION COIL SPRING ARM GEAR PULLEY BELT K : KRC-208S K1 : KRC-28MR K2 : KRC-218 M1 : KRC-288 M2 : KRC-268 indicates safety critical components.

E : Europe

K : North America

M : Other Areas

21

KRC-208S/218,268/288,28MR
SPECIFICATIONS
KRC-208S (K) KRC-218S (K) KRC-28MR (K)
Tuner Type Frequency Range (Frequency Step) Channel Space Selection Usable Sensitivity (S/N 30dB) FM Quieting Sensitivity (S/N 50dB) Frequency Response ( 3.0dB) S/N Selectivity Stereo Separation Frequency Range (Frequency Step) AM Channel Space Selection Usable Sensitivity (S/N 20dB) Tape Speed Wow/Flutter CASSETTE Frequency Response ( 3.0dB) Separation S/N Dolby NR OFF Preout Level / Load Preout Impedance Maximum Power AMPLIFIER Full Bandwidth Power (at less than 1% THD) Bass TONE Treble Operating Voltage (11V-16V allowable) Current Consumption Installation Size (Width) GENERAL (Height) (Depth) Weight TDF CR2 87.9MHz-107.9MHz (200KHz) 50KHz/200KHz 9.3dBf (0.8µV/75) 15.2dBf (1.6µV/75) 30Hz-15KHz 70dB (MONO) 80dB ( 400KHz) 40dB (1KHz) 530KHz-1700KHz (10KHz) 9KHz/10KHz 28dBµ (25µV) 4.76cm/sec. 0.12% (WRMS) 30Hz-14KHz (120µs) 40dB (1KHz) 52dB 1800mV/10K 600 40W x4 20W x4 100Hz 10dB 10KHz 10dB 14.4V 10A 182mm 53mm 155mm 1.4Kg

KRC-268 (M) KRC-288 (M)
TDF CR2 87.5MHz-108.0MHz (50KHz) 50KHz/200KHz 9.3dBf (0.8µV/75) 15.2dBf (1.6µV/75) 30Hz-15KHz 70dB (MONO) 80dB ( 400KHz) 40dB (1KHz) 531KHz-1611KHz (9KHz) 9KHz/10KHz 28dBµ (25µV) 4.76cm/sec. 0.12% (WRMS) 30Hz-14KHz (120µs) 40dB (1KHz) 52dB 1800mV/10K 600 40W x4 20W x4 100Hz 10dB 10KHz 10dB 14.4V 10A 182mm 53mm 155mm 1.4Kg

KENWOOD 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, ltaly

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, Piso 6, Plaza Chase, Cl. 47 y, Aquilino de la Guardia, Panama, Republic of Panama

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

KENWOOD ELECTRONICS BRASIL LTDA.
Av. Moema, 170-17°, Andar-Cobertura "B", Ed. Maximum Service Center, 04077-020 Moema, 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 GULF FZE
P.O.Box 61318, Jebel Ali, Dubai, U.A.E.

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

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

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

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

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

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

KENWOOD ELECTRONICS BELGIUM N.V.
Mechelsesteenweg 418, B-1930 Zaventem, Belgium