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Kenwood LS-M505-B Service Manual Download Page 15

15

RXD-M505USB/LS-M505

Y

X

W

V

U

1

2

3

4

5

6

7

MAIN (2/2)

CN101

to LOGIC DECK

D102

D103

Q107

Q106

Q105

Q104

ZD407

Q417

ZD401

Q416

ZD402

Q413

Q401

ZD410

CN405

D408

Q412

Q408

Q407

CN404

Q425

Q426

Q427

Q428

Q402

ZD412

D108

D107

D410

D411

R

L

CN401

D404

D403

Q403

D405

D406

Q404

D301

Q303

Q302

Q301

Q419

Q418

Q420

D401

D402

Q411

Q410

Q414

ZD406

Q415

(BOTTOM VIEW)

Q430

Q431

D412

CN402

D415

D407

D105

D104

1/4

CN4

CD-

POWER-

CN901

3/4

PHONES

CN403

PHONE
SWITCH

Q405

Q406

JK400

1

2

3

4

5

6

7

8

9

10

H-OUT

GND

H-VCC

MOTOR+

MODE SW

SOL+

F REC.SW+

NC

DETECT SW+

REC SW(R)

1K

R185

30

24

23

22

21

2.2

R187

2.2

R186

R188

1K

R189

100K

R192

1K

R191

22K

1/4W

1/4W

47u16

C108

+

R196

100K

R195

1K

1K

R194

47u16

C109

100K

R193

+

14

13

12

11

10

9

8

7

6

5

4

3

2

1

L-IN3

L-IN4

L LOUD

R-IN1

R-IN2

R-IN3

R-IN4

R LOUD

OUT(R)

IN(R)

R TREBLE

L TREBLE

GND

VDD

15

16

17

18

19

20

21

22

23

24

25

26

27

28

L-IN2

L-IN1

IN(L)

OUT(L)

BIN(L)

BOUT(L)

BIN(R)

BOUT(R)

OUT R

OUT L

DGND

SD

A

SCL

CREF

1000u10

C320

+

0.1

C319

68

1/4W

R314

2700P

C318

2700P

C317

C315

1

C309

1

0.1

C308

2.2K

R343

1u50

C368

+

2.2K

R302

1u50

C306

+

R333

2.2K

C303

1u50

+

2.2K

R353

1u50

C301

+

C307

0.1

R344

2.2K

1u50

C367

+

R301

2.2K

C305

1u50

+

R332

2.2K

1u50

C304

+

2.2K

R354

1u50

C302

+

C316

1

C310

1

C321

1

1

C323

R315

3.3K

C322

R316

3.3K

1

1

C324

2.2u16

C325

+

2.2u16

C326

+

22u16

C328

+

1/8W

R330

R331

1/8W

8

7

5

6

1

2

4

3

SD

A

SCL

R147

0

22u16

C140

+

C111

0.022

560

R452

47u16

C457

+

220u16

C458

+

2.2

R453

1/4W

IN

OUT

GND

680

R427

10

R426

47u16

C410

+

C411

0.022

220u16

C414

+

C415

47u16

+

4.7

R428

560

R416

1/2W

100

C431

47u16

+

820

R481

R490

1

2

3

4

5

6

7

8

9

10

+18V

GND

-18V

GND

+16V

GND

SB+5.6V

PW SW

CD+9V

GND

1

2

3

4

SWC

SWE

T.C

GND

8

7

6

5

DRC

IPK

VCC

CII

0.022

C455

22K

R436

150

R431

22K

R430

1K

R433

220P

C454

22K

R437

220

R438

220uH

L403

220u10

C450

+

0.1

C452

3K

R439

1K

R441

3

GND

5V

GND

2

1

1

2

4

3

8

7

5

6

R

OUT

VDD

RIN-

LOUT

RIN+

LIN-

GND

LIN+

R496

22

2.2u16

C440

+

100u16

C441

+

100K

R440

100K

R491

C442

1

R494

22K

R495

56K

100u16

+

C444

100u16

+

C463

R475

3.3K

0.1

C443

0.1

C462

R480

3.3K

33

R468

47K

R459

33K

R458

47u16

C446

+

10K

R454

10K

R358

R457

10K

R493

1.2K

10

R492

100u16

C400

+

2200u35

C418

5W

220

R930

0.1

C448

+

220

C445

2200u35

R931

0.1

C449

+

5W

100P

C480

C427

0.01

19

18

17

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

NF/2

NF/1

IN/2

IN/1

NC

GND

S

.BY

SUB

NC

+PRE

NC

CH2-

-PRE

CH2+

NC

CH1+

+VCC

CH1-

-VCC

L409 8uH

L404 8uH

L405 8uH

L407 8uH

C451

1000P

1K

R434

R429

1K

C453

1000P

0.1

C429

4.7

1/2W

R462

C465

R464

1/2W

4.7

0.1

100

R406

0.22

R421

2W

R410

4.7 1/2W

600nH

L402

R409

4.7

1/2W

600nH

L401

0.22

R420

2W

C420

1000P

56K

R424

R425

56K

1000P

C424

3K

R422

3K

R423

100u16

C409

+

R407

56K

10P

C405

C406

10P

56K

R408

C425

0.1

470u10

+

C419

2K

R405

L410

L408

1.5K

R341

2.2u16

+

C489

2.2K

R366

R419

4.7K

100P

C413

+

1.5K

R340

2.2K

R365 2.2u16

C488

C412

100P

R418

4.7K

R369

10K

R370

10K

R367

1K

R368

1K

10u25

C340

+

1K

R372

R371

4.7K

10K

R310

10K

R463

10K

R469

R461

4.7K

R460

4.7K

220u16

C470

+

2200P

C404

3.3K

R404

3.3K 2200P

R403 C403

1.2K

R402

47u16

C402

47u16

C401

0.1

C439

1.2K

R401

C438

0.1

3.3K

R412

C417

0.1

10K

R415

100K

R414

R413

3.3K

C416

0.1

1K

R472

22K

R477

100u16

C437

+

100u16

C436

+

1K

R476

56K

R479

56K

R478

R488

10K

R474

47K

R473

47K

1.5K

R470

47K

R471

CD-L

9

CD-R

J302

1K 1/8W

14

2700P

C191

R280

2.7K

12K

R281

2.7K

R282

2700P

C190

R283

12K

L

A

UX-R

1

3

2

R312

C312

4

11

K

27K

R362

1

4.7K

47u16

C339

R355

+

5

C311

100

R313

47u16

R356

100K

C327

7

6

27K

8

1000u10

R361
100K

10K

R360

C341

+

R359

10K

R482

+

SCL

SD

A

C460

1

R445

22K

56K

R448

L

R

47

R503

10K

10K

R497

R489

4.7K

10K

R487

R486

10K

R485

10K

R411

C464

+

2.2u16

1 Rch

GND

PHONE
ON/OFF

CTR

4

5

Lch

3

2

R
L

20

19

+

C331

220u16

10K

R435

47u16

+

C112

5

1

2

4

3

PHONE

ON/OFF

Lch

CTR

GND

Rch

L412

L413

L414

1000P

C422

C421

1000P

R483

1K

1K

R484

MCU+5V

+18V

+18V

+B

18V

18V

18V

+16V

+16V

+16V

+16V

+16V

+16V

+8.4V

+8.4V

+8.4V

+8.4V

+8.4V

+8.4V

+B

+B

+B

+B

+B

+B

+B

+B

+5.6V

+9V

+9V

+9V

+5V

+5V

PLL+5V

MCU+5V

LED+7.5V

+9V

6

2200u25

C407

+

+8.4V

+B

1/8W

1/4W

1/4W

1/8W

1/4W

1/4W

1/4W

1/4W

1/8W

470

470

MCU+5V

MCU+5V

MCU+5V

IC301

IC102

IC404

IC405

IC401

IC402

IC403

HEADPHONE

M-505USB (2/4)

The DC voltage is an actual reading measured with a high impedance type voltmeter with no signal input. The 
measurement value may vary depending on the measuring instruments used or on the product.

B-1

AA-2

Summary of Contents for LS-M505-B

Page 1: ... SERVICE MANUAL 2007 10 PRINTED IN JAPAN B53 4023 00 N J 122 USB jack E58 0096 08 CD door A29 1280 08 S A29 1284 08 B Cassette door A53 2490 08 S A53 2492 08 B Phones jack E11 1012 08 Front cabinet A60 2529 08 S A60 2532 08 B Volume knob K29 8628 08 S K29 8643 08 B DANGER Please do not look at the laser beam directly during repair or operation check M 505USB S Silver B Black ...

Page 2: ... on and TUNER input is selected press and hold down the stop button on the unit for more than 2 seconds Unplug the AC cord and plug it back in if INIT OK is appears Please note that resetting the microcomputer will clear the contents of the memory and return the unit to the state it was in when it left the factory SYSTEM vs COLOR SYSTEM RECEIVER SPEAKER COLOR M 505USB B RXD M505USB B LS M505 B BLA...

Page 3: ...M505USB LS M505 EXTERNAL VIEW AUX IN FM ANT 757 AM ANT R L L SPEAKER IMPEDANCE 47 R L R RCA jack E63 1426 08 Speaker terminal E70 1034 08 Rubber foot J02 1590 08 AC Cord E30 Rear cabinet A80 4576 08 S A80 4577 08 B Tuner module W02 4673 08 ...

Page 4: ...ol 2 Azimuth of Heads MTT 114 10kHz 10dB Connect the oscilloscope and VOM to PHONE jack PLAYBACK Screw fixing heads Adjust the output to maximum and turn the azimuth adjusting screw for Lissajours waveform pattern of the oscilloscope to become close to a 45 degrees straight line 3 Tape Speed MTT 111 3kHz Connect the oscilloscope and VOM to PHONE jack PLAYBACK Potentiometer in motor Adjust the tape...

Page 5: ...529 J530 J531 L501 J507 J515 J516 J505 J504 J532 J533 J535 J538 J536 J537 STANDBY TUNER BAND CD USB TAPE MODE AUX USB O T E TAPE REC DEMO OPEN ALBUM DOWN ALBUM UP EQ X BASS SEARCH SEARCH RPLAY PAUSE FPLAY PAUSE STOP R516 R512 J512 J513 R514 R504 G O I R503 J541 J502 12 1 J503 R502 R501 J506 J514 J545 R515 R508 R506 1 4 1 4 SENSOR R538 R520 R519 R507 R518 R517 R509 R511 R510 B C E B C E R513 C521 C...

Page 6: ... BC14 EC25 EC13 EC23 EC31 EC21 BC40 R1 R57 C43 R60 R59 R54 C42 R61 R62 BC8 BC49 R53 R52 R28 EC15 R2 BC44 R4 R44 R45 BC46 BC39 BC45 BC20 R18 R19 BC43 R49 R50 R41 C40 R46 R43 R72 R71 R74 R73 R40 BC37 BC13 BC9 R3 R17 BC19 C37 R42 C38 BC18 BC17 BC10 R68 C46 R65 R66 C65 C63 BC34 C24 C23 C22 C21 C20 BC24 R63 R20 BC22 BC21 BC25 BC6 BC23 BC1 BC31 BC30 BC27 R37 C36 R35 C35 R34 C34 R33 C33 R32 C45 BC28 R64 ...

Page 7: ...7 RXD M505USB LS M505 O N M L K 1 2 3 4 5 6 7 PC BOARD Refer to the schematic diagram for the values of resistors and capacitors CD SIDE B ...

Page 8: ...1 J432 J417 R406 J416 J433 R314 R372 R330 R331 J301 C470 MAIN PHONE AUX R498 R471 R470 R473 R472 R476 R479 C424 R496 R440 R459 C45 R R35 R35 R359 R360 R361 R363 R362 R475 R369 R370 R367 R340 R371 R491 R310 R463 R405 R401 C405 R407 R403 C403 R402 R404 C404 L408 R460 R461 C438 C439 C420 R483 R484 C427 R469 L210 L211 J105 R344 R301 C334 C333 J104 R474 R455 R456 R477 R478 C451 R434 R429 C453 R424 R423...

Page 9: ...05 J403 Q108 Q107 D103 D102 Q105 R196 R487 R433 R431 C455 C454 C210 R216 R214 R215 R218 R213 R212 C259 C288 FB202 C213 C226 R226 C215 R229 R243 R241 C233 R221 R251 R257 C261 R206 C225 C257 R203 R261 C250 C216 R230 C214 FB204 C258 R240 R244 C238 R242 C234 C244A R264 R258 R259 R333 R355 R356 R359 60 R457 R344 R301 R128 R127 R148 R141 R164 R173 R165 R175 R166 R176 R167 R177 R185 R178 R169 R104 R117 R...

Page 10: ...D915 D916 D914 D911 D909 D910 D912 R902 R903 R901 C920 RL901 E B C BLUE AC1 AC2 L901 C923 C925 C918 C913 C915 C916 C914 C911 C909 C910 C912 C922 F903 C921 F902 BLK RED A RED B ORG B F904 F901 ORG A WHT A WHT B J2 J1 1 10 C917 TR901 BROWN POWER Refer to the schematic diagram for the values of resistors and capacitors PC BOARD ...

Page 11: ...800P C33 2200P 1K 20K R33 R32 47u10 EC17 C27 0 01 C25 0 22 C26 0 01 R30 33K TP11 C30 820P 4700P C29 300P C32 0 1 C31 330P 470K R64 C45 150K R60 470K R57 C43 150K R63 1 R59 BC12 100P R70 10K MGND R48 4 7K 49 46 45 R53 1 1 R52 R56 1 1 R55 BC1 0 1 0 1 BC2 0 1 BC40 1000P BC41 0 1 BC27 0 01 BC30 0 1 BC7 1000P BC31 0 1 BC28 0 1 BC29 220u10 EC8 220u10 0 1 BC42 0 1 BC9 0 1 BC13 33 R3 12 R14 330P BC4 0 1 B...

Page 12: ...SS K1 GPIO TTIO1 5 SD D1 MS D1 GPIO TTIO2 6 SD D2 MS D2 GPIO TTIO3 7 SD D3 MS D3 VDD 01 GPIO R CS4 B GPIO R CS3 B GPIO R CS2 B GPIO R CS1 B GPIO RST B IR IN GPIO VFD CLK GPIO VFD STB GPIO VFD DATA GPIO R 20 E MIX10 R A19 CLKIN CLKOUT USB GND USB VDD USB DP USB DM VSS PLLA VDD PLLA VSS PLLV VDD PLLV M D7 M D6 M D5 M D4 M D3 VDD 02 M D2 M D1 M D0 M WE B M CAS B M RAS B VSS 02 VSS K2 M CS0 B GPIO M B...

Page 13: ...35 M33 M32 M09 M11 M10 M08 M31 M00 M01 M02 M04 M03 M05 M06 M07 M28 M29 M21 M26 M27 M25 M24 M30 M20 M19 M18 M16 M17 M15 M14 M13 M22 R51 33 RA19 RA28 RA24 RA04 RA21 RA20 RA22 RA23 RA00 RA25 RA06 RA05 RA07 RA02 RA03 RA26 RA27 RA18 RA08 RA16 RA14 RA15 RA13 RA12 RA11 RA10 RA09 RA17 RA01 L6 10u6 3 EC23 EC25 10u6 3 12K R93 12K R80 R82 R95 C65 680P C63 680P RA00 RA02 RA01 RA06 RA03 RA05 RA04 RA07 RA08 RA1...

Page 14: ...6 8K R128 12K R127 2 2u16 C107 CD L CD R GND 1 3 2 18K R348 18K R347 4 7K R345 C366 1000P 1000P C365 4 7K R346 8 2 3 10 9 C363 1000P 3 1K R351 R350 9 1K 2 R352 1K 1000P C364 R349 9 1K 1 3 2 1 AUX L G AUX R 1 7 6 3 5 4 2 7 2 5 6 3 4 1 7 6 5 4 3 2 1 INPUT1 NFB1 PHASE OUTPUT1 ALC ALC TIME GND 8 9 10 11 12 13 14 INPUT2 NFB2 PHASE ALC RIPP FIL VCC C223 1000P L204 4 7u16 C240 FB203 C236 100P 330P C238 C...

Page 15: ...7K R459 33K R458 47u16 C446 10K R454 10K R358 R457 10K R493 1 2K 10 R492 100u16 C400 2200u35 C418 5W 220 R930 0 1 C448 220 C445 2200u35 R931 0 1 C449 5W 100P C480 C427 0 01 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 NF 2 NF 1 IN 2 IN 1 NC GND S BY SUB NC PRE NC CH2 PRE CH2 NC CH1 VCC CH1 VCC L409 8uH L404 8uH L405 8uH L407 8uH C451 1000P 1K R434 R429 1K C453 1000P 0 1 C429 4 7 1 2W R462 C465 ...

Page 16: ...TR901 R902 1 8W RL901 33 R903 1000P C923 L901 B B 9V 16V 7V 16V 14V 22K 1 4W POWER M 505USB 3 4 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 cur...

Page 17: ...22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 SG17 SG18 SG19 SG20 SG21 SG22 SG23 SG24 SG25 SG26 SG27 SG28 SG29 SG30 SG31 SG32 SG33 SG34 SG35 SG36 SG37 SG38 SG39 COM1 COM2 COM3 COM4 KO1 SG40 KO2 SG41 KO3 KO4 KO5 D...

Page 18: ...1 B A M 505USB This figure is available on parts location But individual parts is not available for repair ass y parts only 689 DM FM LM PU EXPLODED VIEW MECHANISM Parts with the exploded numbers larger than 700 are not supplied ...

Page 19: ...N401 763 662 685 751 776 748 752 751 DISPLAY PCB 634 622 620 621x4 619x5 612 635 636 637 726 742 728 777 787 787 787 784 787 783 783 604 601 603 607 607 629 616 615 613 614 624 624 625 623 630 718 717 602 LCD501 BS BM PF PR RPH search TAPE rec USB O T E stop SW517 SW509 SW518 SW514 SW503 SW504 SW712 demo SW502 EQ SW512 up SW516 down p call album SW513 volume VR501 SW515 SW501 X bass SW508 TAPE mod...

Page 20: ...637 08 LCD FILTER 6214 070600100 635 1D J19 6482 08 LIGHT GUIDE PM 5502 070600100 636 1D B11 1636 08 LIGHT GUIDE PA 7208 070600100 637 1D J19 6478 08 LIGHT GUIDE BK 5601 070600100 650 1E W02 4673 08 TUNER MODULE K 4902 070600100 654 1E A80 4576 08 REAR CABINET H 5006 070600100 S 654 1E A80 4577 08 REAR CABINET B 5006 070600200 B 658 2E J19 6484 08 LOCKING PCB SU 6306 070600200 659 2E J42 0361 08 S...

Page 21: ...57 259 CK73GB1H102K CHIP C 1000PF K C260 261 CC73GCH1H221J CHIP C 220PF J C270 CK73GB1H223K CHIP C 0 022UF K C282 283 CC73GCH1H101J CHIP C 100PF J C288 CK73GB1H102K CHIP C 1000PF K C301 306 CD04BJ1H010M ELECTRO 1 0UF 50WV C307 308 CK73GB1H104K CHIP C 0 10UF K C309 312 CK73GB1C105K CHIP C 1 0UF K C315 316 CK73GB1C105K CHIP C 1 0UF K C317 318 CK73GB1H272J CHIP C 2700PF J C319 CK73GB1H104K CHIP C 0 1...

Page 22: ... USBATYPE1 1C E58 0096 08 USB JACK USB 1 3209 040200000 JK302 1E E63 1426 08 RCA JACK RED W 3204 020183020 JK400 2D E11 1012 08 PHONE JACK CK 3202 110135000 F901 F50 0364 08 FUSE TSD 1 6A 2001 160250130 F902 903 F50 0365 08 FUSE TSD 4A 25 2001 400250100 F904 F50 0364 08 FUSE TSD 1 6A 2001 160250130 F1 L92 0863 08 CH FERRITE BEA 2721 601030000 FB201 204 L92 0864 08 CH FERRITE BEA 2721 701020000 L2 ...

Page 23: ...6 RK73GB2A223J CHIP R 22K J 1 10W R127 RK73GB2A123J CHIP R 12K J 1 10W R128 RK73GB2A682J CHIP R 6 8K J 1 10W R129 131 RK73GB2A102J CHIP R 1 0K J 1 10W R134 139 RK73GB2A102J CHIP R 1 0K J 1 10W R140 RK73GB2A473J CHIP R 47K J 1 10W R141 RK73GB2A222J CHIP R 2 2K J 1 10W R142 RK73GB2A103J CHIP R 10K J 1 10W R145 RK73GB2A101J CHIP R 100 J 1 10W R146 RK73GB2A102J CHIP R 1 0K J 1 10W R147 RK73GB2A000J CH...

Page 24: ...B2A151J CHIP R 150 J 1 10W R433 434 RK73GB2A102J CHIP R 1 0K J 1 10W R435 RK73GB2A103J CHIP R 10K J 1 10W R436 437 RK73GB2A223J CHIP R 22K J 1 10W R439 RK73GB2A302J CHIP R 3 0K J 1 10W R440 RK73GB2A104J CHIP R 100K J 1 10W R441 RK73GB2A102J CHIP R 1 0K J 1 10W R445 RK73GB2A223J CHIP R 22K J 1 10W R448 RK73GB2A563J CHIP R 56K J 1 10W R453 RD14BB2E2R2J RD 2 2 J 1 4W R454 RK73GB2A103J CHIP R 10K J 1 ...

Page 25: ...CP900 JUMPER WIRE 3005 000000000 LCD501 1C B38 0285 08 LCD TC0380TTN 2403 000000620 Q3 2SB1132R CH TRANSISTOR 1421 211320010 Q4 BT3904 CH TRANSISTOR 1422 039040000 Q5 6 3CA8550 TRANSISTOR PNP 1411 385500000 Q7 9 2SC8050 TRANSISTOR NPN 1412 080500000 Q101 2SC8050M CH TRANSISTOR 1422 080500020 Q102 3CA8550 TRANSISTOR PNP 1411 385500000 Q103 2SC8050M CH TRANSISTOR 1422 080500020 Q104 3CA8550 TRANSIST...

Page 26: ... 12 16 32 MP3 decode Compliant with MPEG 1 2 Audio Layer 3 WMA decode Compliant with Windows Media Audio 9 Recording format MP3 128 kbps 44 1 kHz Cassette deck section Track 4 track 2 channel stereo AUX section Input Sensitivity Impedance 1000 mV 10 kΩ General Power consumption 75 W Dimensions W 160 mm 6 5 16 H 269 mm 10 9 16 D 345 mm 13 15 16 Weight net 5 5 kg 11 7 lb Speakers Enclosure Bass refl...

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