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Kenwood KRC-29Y, Service Manual

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Kenwood KRC-29Y Service Manual Download Page 11

A

B

D

F

H

J

C

E

G

I

2

1

3

5

7

4

6

B LINE

3.6V
0V

0V

5V

0V

8.3V

4.1V

4.1V

4.1V

4.1V

3.8V

0V

0V

4.1V

4.1V

4.1V

4.1V

4.1V

4.2V

3.8V

3.8V

3.8V

3.8V

0V

5V

5V
0V

5V
1V

7.9V

4.0V

4.0V

3.8V

3.8V

3.8V

3.8V

3.8V

3.8V

3.8V

3.8V

0V

3.8V

7.7V

5.0V

5.0V

0V

0V

7.6V

7.6V

0V

5V

0V

5V

0V

0V

5V

0V

5V

5V
0V

5.0V

0V

4.1V

4.9V

0V

5.0V
2.5V

D

ATA

 C

GND

REQ H

CON

MUTE

S GND

Rch

RST

2

4

3

8

12

7

6

11

10

1

5

9

D

ATA

 H

Lch

CLK

REQ C

13

R404 100

R405 4.7K

R406 4.7K

R402 10

R403 4.7

R407 4.7K

R409 4.7K

R408 4.7K

R41

1 100

R410 100

R401 10

C403 100u10

+

C402 1u50

+

C401 1u50

+

13

1

3

2

4

5

L

GREF

VREF

CD R

R

PH-

6

7

8

CD GND

CD L

10

9

11

12

AFS

MPX

AM

LEVEL

MP

 IN

28

AC OUT

 L

OUT

 RL

OUT

 FR

OUT

 FL

AC OUT

 R

26

27

25

24

GND

VDD

OUT

 RR

23

21

22

QUAL

S MUTE

SCL

SDA

19

20

18

17

MP

 OUT

14

16

15

MUX OUT

 L

MUX OUT

 R

FR

RR

RL

FL

5

7

6

30

29

28

27

26

25

24

23

22

21

20

19

18

17

16

15

14

13

12

11

1

2

3

4

5

6

7

8

9

10

31

32

33

34

35

36

37

38

39

40

M-OUT

 (R)

EQ OUT

 (R)

D IN (R)

RAI (R)

PB OUT

 (R)

MS GV (R)

MS GV (S)

MA OUT

MSI

MS DET

VCC

MUSIC

S/R (MSGV)

F/R

MTL

M-OUT

 (L)

RQ OUT

 (L)

D IN (L)

RAI (L)

PB OUT

 (L)

MUTE

NFI (R)

R IN (R)

RIF

F IN (R)

F IN (L)

V REF

R IN (L)

NFI (L)

1

2

3

4

5

6

7

8

9

10

MODE

MODE+B

SUB(-)

SUB(+)

PACK IN

F/R

GND

HEAD L

HEAD COM

HEAD R

9

7

1u50

+

C509

B.U.

42

44

16

63

18

17

5

4

3

2

1

SGND

IN2

IN1

NC

VCC

6

7

8

9

10

PGND

OUT2

NC

OUT1

NC

470

0.01

330K

5.1K

0.1u50

+

22u6.3

+

C514

150

R514

0.01

330K

5.1K

+

R513

150

C513

22u6.3

+

C517 0.1u50

15K

1500P

R533 470

C532 0.01

R534 100K

470

54

55

47u10

C501

+

0.01

C502

56

180K

R502

0.22u50

C505

+

0.01

C506

4.7

R501

57

64

3.3K

R20

R32 22K

10K

R30

C30 0.01

1/2W

10K

R11

1000P

C14

R14

82K

56K

R15

100K

R16

30K

R10

R415 100K

C404 0.01

VDD

GND

1

2

14

13

3

12

11

4

5

6

7

10

9

8

C40 0.01

77

59

58

0.01

C508

24K

R504

0.47u50

C507

+

1.6K

R503

C531 10u10

+

22

R537

C533 0.22

C534 0.22

9

7

37

38

5

7

6

2.2u50

+

0.01

C202

47u10

+

C201

4.7uH

L201

C203

C206 0.015

C207 0.47

R201 2.7K

R202 4.7K

R551

10K

STBY

T-END

GND

GND

4

6

7

5

2

3

1

M+B

R552

1K

20

19

R556 470

R554 470

1/2W

C205 1

C204 1

4.7K

R203

C209 0.1

C208 0.1

C21

1 150P

C210 0.033

Q501

10

9

6

8

7

5

4

1

3

2

HEAD R

HEAD COM

HEAD L

GND

F/R

PACK IN

SUB(+)

SUB(-)

MODE+B

MODE

MODE

FWD/REV

P

ACK

M+R

GND

T-END

STBY

GND

KRC-29Y

KRC-35R

KRC-379RY

KRC-379R

KRC-479R

KRC-481R

KRC-479RY

YES

NO

2-72

NO

NO

2-70

2-71

0-21

NO

YES

YES

YES

UNIT No.

MODEL NAME

NO

NO

NO

YES

J6

NO

YES

YES

NO

YES

NO

YES

YES

NO

NO

YES

NO

NO

YES

YES

NO

MODEL NAME

UNIT No.

GND2

R413 100K

R414 100K

R412 100K

1

2

3

4

5

6

7

8

9 10

11 12 13 14 15 16 17 18

B.U

B.U

B.U

GND

GND

GND

T

.MUTE

P

.CON

ACC

A.5

RR-

RR+

RL-

RL+

FL-

FL+

FR+

FR-

L1

C20 0.01

R22 47K

47K

R21

R12 100K

R23 100K

78

21

22

R31 47K

RR-

RR+

RL-

FR+

FR-

RL+

FL-

FL+

R1

3300u16

+

4.7K

C1

R535

R536

22K

R531

4.3K

C515

R517

R519

12K

R515

C512

R512

15K

1500P

C51

1

R51

1

R520

R518

C516

12K

R516

4.3K

R522

R521

9

11

13

10

R2

4.7K

7

9

7

9

39

1K

R204

4.7K

R205

28

Q551,552

KRC-479R

KRC-29Y

KRC-379R

KRC-379RY

KRC-35R

KRC-481R

KRC-479RY

2-72

2-71

2-70

0-21

NO

YES

YES

YES

J5

146

R111,

R112

R114

R113

TDA7384A

TDA7384A

IC4

TDA7386

TDA7386

C518

3

1

2

7

4

5

6

7

B

5

3

1

6

2

4

8

REAR. L

FRONT

. L

FRONT

. R

REAR. R

P

.CONT

 OUT

ACC

ANT

.CONT

8

7

5

6

4

3

1

2

BA

TT

A

RED

BLU/WHT

BLK

YEL

GRN

WHT

GR

Y

VIOL

GRN/BLK

WHT/BLK

GR

Y/BLK

VIOL/BLK

J4

CN1

D401

D402

D404

D403

D409

D411

D410

DET.

ACC

D10

D1

1

Q11

Q10

DET.

SERGE

DET.

BACK-UP

Q40

Q501

EQUALIZER
AMPLIFIER

SUB MOTOR
DRIVER

Q552

Q551

E-VOLUME

CN2

MOTOR SW

MAIN

D551

AVR

MOTOR DRIVER

HEAD

Rch

Lch

MAIN

T-END

STBY

SUB

P

ACK

FWD/REV

M

HD1

M

M1

M2

PLAY

SW5V

TAKEUP

REEL

REEL

SUPPLY

(X14-641x-xx)

A

B C

(X14-641x-xx)

IC1

: UPD780058GC229

IC2

: TDA7407D

IC4

:

IC6

: TDA7479D

IC9

: HA12221F

IC7

: TDA3682ST

IC8

: HD74HC27FP

Q1,301

: DTC124EUA

Q10,11,20,101,201

: 2SC4081

Q40

: DTA124EUA

Q50

: 2SA1036K

Q221-224

: DTC143TUA

Q251

: DTC114YUA

Q501

: 2SD1760

Q551

: 2SB1443

Q552

: DTC114EUA

D1

: S2V20    A

D2,3

: 1GWJ43 (TPB5)

D4,551

: AM01Z

D10,11,401,402

: MA4068 (N) -M

D20

: MA4051 (N) -M

D40,101,251-253

: B30-1567-05

403,404,409-411

: 1SS133

D301

: IMSA-6801

GND LINE

SIGNAL LINE

MUTE DRIVER

PREOUT

J2

D40

D20

Q20

D1

D2

D3

D4

D30

Q201

DETECTION

NOISE

∗ 

B

CONTROL

MUTE

LOGIC

IC12

IC10
IC11

LB1930M
S-80830ANNP

: BR24C01AF

:
:

Q151

DTA114YUA

:

MA4047-M

:

D30

D102

MA4062-L

:

D153,157,159-161

B-PART

A-PART

IC2

IC9

IC10

IC8

CASSETTE MECHANISM
(D40-1150-05)

SYNTHE SIZER UNIT (X14-641x-xx)

(E30-4792-05)

DC1

22K

22K

10K

10K

w w w . x i a o y u 1 6 3 . c o m

Q Q 3 7 6 3 1 5 1 5 0

9

9

2

8

9

4

2

9

8

T E L

1 3 9 4 2 2 9 6 5 1 3

9

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

Q

TEL  13942296513  QQ  376315150  892498299 

TEL  13942296513  QQ  376315150  892498299 

Summary of Contents for KRC-29Y

Page 1: ... 40W x 4 SCRL T CALL TI VOLADJ KRC 479R RY E KRC 479R CD MD Changer Control 45W x 4 SCRL T CALL KRC 481R M KRC 481R CD MD Changer Control 45W x 4 SCRL T CALL TI VOLADJ 262 261 242 223x2 263 DC1 201 The following reference numbers with accessory parts are the same reference numbers used on EXPLODED VIEW and PARTS LIST 246 TI VOLADJ TI VOLADJ T CALL 40 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8...

Page 2: ...V B U A8V 8 5 10 IN PLAY HEAD B U 5V AFS R QUAL R CLK R DATA PACK IN M STBY T END L CE B U 5V REMO SW5V GREEN RED B U 5V PHONE BEEP SVR P MUTE P STBY SVR AC GND BEEP Lch Lch Rch Lch 1200mV AM 160mV FM 213mV TAPE 1786mV CD MD CH 3546mV AM 850mV FM 1345mV TAPE 1912mV CD MD CH 3795mV AM 910mV FM 1440mV PLL CLK SW 5V MUSIC MSCONT EQ MUTE MUSIC MSCONT MUTE A8V IC6 RDS DECODER SW 5V SYSTEM u COM IC1 KEY...

Page 3: ...omes H Q151 PANEL 5V SW Works when the base terminal voltage level becomes L Supplies VDD to panel Q201 NOISE DETECTION Detects noise Q221 224 PREOUT MUTE Mutes when the base terminal voltage level becomes H Q251 POWER IC SVR SW Discharges the capacitor s voltage of SVR terminal after the base termial voltage becomes H Q301 LOCAL SEEK SW Changes to the local seeking after the base terminal voltage...

Page 4: ...tion H Run L Stop 21 ACC DET I ACC detection 22 BU DET I Back up detection 23 IC2 TYPE 0 I For service L Normally 24 IC2 TYPE 1 I For service L Normally 25 TYPE 0 I Destination discrimination 26 TYPE 1 I Destination discrimination 27 TYPE REF O Reference voltage for destination and service 28 MOTOR O Cassette mechanism motor H ON L OFF 29 PLL CE O Front end communication chip enable 30 SD I Statio...

Page 5: ...unning direction detection H FWD L REV 58 SUB O Sub motor control 59 SUB O Sub motor control 60 RESET I System reset 61 REMOTE I Remote control 62 R CLK I RDS clock 63 CH REQ C I Changer request 64 PACK IN I Cassette tape pack in detection 65 KEY REQ I Key signal detection 66 67 VSS 0 GND 68 VDD 1 VDD 69 X2 Main system clock 70 X1 I Main system clock 71 IC 72 73 XT1 VDD 74 VDD 0 VDD 75 AVREF 0 I R...

Page 6: ... audio mode by pressing the AUD key or OPEN CLOSE key on the remote controller Set the volume level to be 10dB In that case 30 should be shown on the display Loudness OFF The BASS MIDDLE TREBLE and BALANCE FADER can be adjusted to the full boost full cut and full front full rear each by pressing the UP and DOWN keys 5 Menu mode Enter the menu mode by pressing CLK key or DNPP key on the remote cont...

Page 7: ...N FOR FIG CASSETTE DECK SECTION 1 AZIMUTH TCC 153 10KHz SP OUT TAPE PLAY Head azimuth screw FWD REV ME1 Adjust so that output level in playing FWD and REV becomes maximum each b b AZIMUTH PANEL FRONT FWD REV 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 8: ...INS KRC 29Y 35R 379R RY 479R RY 481R 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 9: ...C20 R15 C2 C303 C302 CP315 CP104 TH1 CP101 R145 CP102 E B E B B E E B E B B E E B B E B E B E B E B E E B E B E B B E CP103 1 16 9 8 15 14 1 28 5 4 8 1 1 8 7 14 40 21 20 1 80 61 41 1 2 4 3 1 5 6 10 20 21 30 31 40 1 10 11 60 E B Q40 Q224 Q223 IC11 D102 IC10 Q501 IC1 Q101 Q251 IC9 Q50 IC8 Q10 Q221 Q222 IC2 Q552 Q20 IC12 Q151 IC6 Q301 Q201 Q1 Q11 D301 DTC DTH CLK RES 5V GND W21 W23 W2 W19 W5 R303 W24...

Page 10: ...R132 R129 B 20 C502 R521 11 10 R522 C404 R415 E B R51 R516 R520 21 C508 R504 30 31 C516 R518 1 R536 R534 C532 R515 R519 C515 R517 R533 R535 R531 C512 R513 40 R511 C511 R512 R514 B E R226 B E B E E B B R225 R228 E R227 C225 Q151 IC6 Q301 D301 Q101 IC10 D102 IC11 IC12 Q552 Q20 IC1 Q10 IC8 Q251 Q11 Q201 Q1 IC2 Q501 Q50 IC9 Q221 Q222 Q223 Q40 Q224 13 9 10 6 7 5 1 11 12 8 4 3 2 1 2 14 15 1 13 1 10 R304...

Page 11: ...EV PACK M R GND T END STBY GND KRC 29Y KRC 35R KRC 379RY KRC 379R KRC 479R KRC 481R KRC 479RY YES NO 2 72 NO NO 2 70 2 71 0 21 NO YES YES YES UNIT No MODEL NAME NO NO NO YES J6 NO YES YES NO YES NO YES YES NO NO YES NO NO YES YES NO MODEL NAME UNIT No GND2 R413 100K R414 100K R412 100K 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 B U B U B U GND GND GND T MUTE P CON ACC A 5 RR RR RL RL FL FL FR FR...

Page 12: ...XT1 XT2 IC X1 X2 VDD 1 VSS 0 KEY REQ PACK IN CH REQ C R CLK REMOTE RESET SUB SUB FWD REV EQ MUTE MS CONT MUSIC SW5V EN1 EN3 BEEP EN2 0 EN2 1 CH REQ H CH CONT P CON DET ACC DET BU DET IC2 TYPE 0 IC2 TYPE 1 TYPE 0 TYPE REF MOTER PLL CE SD AFS LO DX VSS 1 P MUTE SVR GND IC2 SCL IC2 SDA MUTE P STBY DSI PANEL AVSS L RST L CE AVREF1 PLL DATA PLL CLK L DATA L L DATA S L CLK R DATA R QUAL CH DATA C CH DAT...

Page 13: ...R18 R23 47 PL2 PL1 270 R20 0 01 C10 0 01 C11 10K 10K C7 0 01 R15 360 510 R14 330 R13 R12 330 R10 330 R11 330 KI1 KI2 KI3 KI4 KI5 IC2 KRC 479RY YES YES NO KRC 479R KRC 481R NO B 2 70 0 21 UNIT No MODEL NAME 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 59 KS2 KS3 KS4 SK5 1K CP2 2 2 R16 330 330 R21 KI5 R24 1K 40 53 A KRC 379RY KRC 379R KRC 29Y KRC 35R 2 71 YES NO Q2 3 1K CP1 J1 Q1 Q3 Q2 D26 D25 D15 D17 D14 D1...

Page 14: ...SM 4 73 27 2 55 76 a M1 63 79 52 79 6 52 74 74 45 16 16 13 13 17 45 67 8 40 41 77 9 68 1 37 19 10 107 38 94 95 80 15 18 53 83 62 23 22 59 35 46 42 69 36 7 47 48 103 105 100 102 3 HD1 33 75 32 34 26 24 M2 70 25 71 44 39 57 14 43 G R R L M Q Q L M Ex2 M M 887 C L L L P L S G 899 G G G G H Bx2 M M M M N Dx2 Ax3 F F 5 P 1 2 3 A B KRC 29Y 35R 379R RY 479R RY 481R EXPLODED VIEW MECHANISM 19 www xiaoyu16...

Page 15: ...N X14 204 221 224 227 212 252 PA1 256 253 257 241 254 251 255 214 207 211 234 206 262 261 242 223x2 263 DC1 201 232 ME1 222 208 231 233 705 744 764 X13 709 729 765 F1 228 F Ax2 D 703 Q P D 272 X13 WH1 X14 274 X13 271 X13 275 X13 ED1 X13 776 X13 781 X14 782 X14 783 X14 A1 X14 246 1 2 3 C D 20 KRC 29Y 35R 379R RY 479R RY 481R EXPLODED VIEW UNIT www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 139...

Page 16: ...2E3E5 263 1C T90 0523 05 ANTENNA ADAPTOR E2E3E5 B64 1821 00 INST MANUAL FRE GER DUT E2E1 263 1C T90 0523 05 ANTENNA ADAPTOR E6E1E4 B64 1822 00 INST MANUAL ITA SPA POR E2E3E1 263 1C T90 0534 05 ANTENNA ADAPTOR E2E3E5 B64 1823 00 INST MANUAL RUS POR CZE E5E4 263 1C T90 0534 05 ANTENNA ADAPTOR E6E1E4 B64 1824 00 INST MANUAL HUN CRO SLO E5E4 B64 1825 00 INST MANUAL ENG RUS POL SLO E6 271 2C B11 1325 0...

Page 17: ...S 171 ANALOGUE IC C353 C90 2592 05 ELECTRO 10UF 6 3WV E5E1E4 Q1 DTA114EK DIGITAL TRANSISTOR C353 C90 2592 05 ELECTRO 10UF 6 3WV ME2E3 Q1 KRA102S DIGITAL TRANSISTOR C354 CK73GB1H103K CHIP C 0 010UF K E5E1E4 C354 CK73GB1H103K CHIP C 0 010UF K ME2E3 Q1 UN2111 DIGITAL TRANSISTOR C355 356 CC73GCH1H100D CHIP C 10PF D E5E1E4 Q2 3 2SD2114K TRANSISTOR C355 356 CC73GCH1H100D CHIP C 10PF D ME2E3 C401 402 C90...

Page 18: ...1J104J CHIP R 100K J 1 16W R202 203 RK73GB1J472J CHIP R 4 7K J 1 16W R14 RD14BB2C823J RD 82K J 1 6W R204 RK73GB1J102J CHIP R 1 0K J 1 16W E5E1E4 R15 RK73GB1J563J CHIP R 56K J 1 16W R204 RK73GB1J102J CHIP R 1 0K J 1 16W ME2E3 R16 RK73GB1J104J CHIP R 100K J 1 16W R205 RK73GB1J472J CHIP R 4 7K J 1 16W E5E1E4 R20 RD14DB2H332J SMALL RD 3 3K J 1 2W R205 RK73GB1J472J CHIP R 4 7K J 1 16W ME2E3 R21 RD14BB2...

Page 19: ...ISTOR R554 RK73GB1J471J CHIP R 470 J 1 16W Q101 2SD1819A TRANSISTOR R556 RK73GB1J471J CHIP R 470 J 1 16W Q151 DTA114YUA DIGITAL TRANSISTOR Q151 UN5114 DIGITAL TRANSISTOR D1 S2V20 A DIODE Q201 2SC4081 TRANSISTOR E5E1E4 D2 3 1GWJ43 TPB5 DIODE Q201 2SC4081 TRANSISTOR ME2E3 D4 AM01Z DIODE Q201 2SD1819A TRANSISTOR E5E1E4 D4 ERA15 01 DIODE D10 11 MA4068 N M ZENER DIODE Q201 2SD1819A TRANSISTOR ME2E3 Q22...

Page 20: ...29 0510 08 RETAINING RING 36 2B D13 1328 08 GEAR HD1 1B T31 0220 08 PLAYBACK HEAD 37 3A D13 1329 08 GEAR 38 3A D10 4119 08 ARM M1 1A T42 0759 18 MOTOR ASSY MAIN 39 1B D13 1330 08 GEAR M2 1B T42 1005 08 MOTOR ASSY SUB 40 2A D13 1331 08 GEAR 41 2A D13 1332 08 GEAR 42 2B J11 0619 08 CLAMPER 43 1B D13 1333 08 GEAR 44 1B D13 1334 08 GEAR 45 2A D13 1335 08 GEAR 46 2B D10 4120 08 ARM 47 2B J19 4738 08 HO...

Page 21: ...Academy Lot 4A Jalan 19 1 46300 Petaling Jaya Selangor Darul Ehsan Malaysia KRC 29Y E KRC 479R RY E KRC 481R M KRC 35R E KRC 379R RY E TDF TDF TDF Tuner Type CR2 CR2 CR2 Frequency Range 87 5MHz 108 0MHz 87 5MHz 108 0MHz 87 5MHz 108 0MHz Frequency Step 50KHz 50KHz 50KHz Channel Space Selection Fix Usable Sensitivity S N 26dB 0 7µV 75Ω µV 75Ω µV 75Ω µV 75Ω 0 7 Usable Sensitivity S N 30dB 8 1dBf 0 7 ...

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