background image

C301A

C301B

R350

R102

R104

JC6

JC4

JC2

C601

JC20

JC21

JC18

JC19

JC16

JC30

JC53

JC50

R613

JC11

JC36

JC12

JC17

JC14

JC15

JC33

JC13

JC8

JC7

JC25

JC34

JC37

JC57

JC24

JC22

JC9

JC23

R100

C212

JC10

R351

R605

R253

R23

C253

C606

R44

R45

R37

JC31

JC27

JC28

JC29

C6

C2

R628

JC32

R38

C613

R624

C154

R608

R611

R606

R403

R402

R400

R404

R406

R407

R408

R405

R409

R644

C155

C404A

C10

C404B

R600

R602

C603

C602

R601

R307

C301

C305

C303

C304

R509

C310

R503

R505

C512

R504

R506

R502

C214B

C214A

C354

JC5

JC3

TH500

R206

C211

C210

R208

R207

C209

R508

C510

R352B

R352A

R353B

R103

R101

R210A

R211A

C201A

JC35

R201A

R211B

R210B

C201B

R201B

C200B

R200B

C200A

R200A

R106

C151

R105

C104

C109

C107

C105

C102

C100

R353A

R204

R302

R302

R303

C306

R308

R306

R47

R36

R69

R27

C16

C15

R14

R13

R2

R4

R6

R8

R10

R12

C5

R34

R33

C615

R627

R25

R60

R59

R68

R67

R62

R61

C22

C8

JC51

R609

JC26

E
B

EB

EB

EB

EB

EB

E
B

EB

E
B

E
B

E
B

EB

EB

E
B

E
B

E
B

E
B

B
E

B
E

B

E

E

B

3

4

1

2

D507

D506

D501

D402

D403

D404

D6

D5

D405

D608

D614

D8

D7

Q605

Q614

Q3

Q617

Q5

Q600

Q601

Q104

Q101

Q103

Q612

Q606

Q611

Q625

Q615

Q1

Q2

Q303

Q302

Q500

Q621

IC2

R401A

R401B

C400

R643

C624

R354B R354A

R305

C308

C307

R304

R616

R620

R618

C608

C604

JC39

R619

R617

R621

R356B

C206B

C206A

C352A

VR200B

ET1

VR200A

C352B

R355B

R357B

R356A

C353B

R355A

R357A

C353A

R603

R615

JC451

JC40

JC52

JC41

C300

JC38

JC42

JC56

JC55

JC54

JW18

JW16

JW15

JC43

C20

R626

C621

R634

C13

R641

C250

C153

C251

C252

R52

R53

C254

R51

R203

JC46

R205

RN3

RN2

R15

R22

R19

R18

R21

R17

R16

R1

R50

C207B

C18

C17

C504A

C505B

C505A

C504B

R65

R20

C502A

C503B

C503A

C502B

C500A

C501B

C501A

R501B

R501A

C500B

R500A

R500B

R300

R209

C213

R29

R35

R42

C7

R28

R24

R26

R11

R9

R7

R5

R3

C11

R57

R56

R55

R54

R58

C616

C14

C19

C4

C3

R64

R46

C625

C205B

R202B

R202A

C205A

C207A

R39

R40

C21

C618

JC44

RN400

L1

L100

L102

L105

L104

L106

L103

L300

L105

R629

L101

R625

R252

C402B

C612

C623

C610

C622

C1

C614

C403

C607

C605

C402A

C309

JW1

JW9

JW17

JW10

JW2

JW11

JW13

JW5

JW8

JW7

JW12

JW3

JW4

E B

E B

EB

EB

R604

R612

R614

R610

R251

R250

C255

C609

C12

R43

JC47

R254

R255

C507

R32

C506

L600

C600

C508

C509

C350A

C350B

C511

X150

RN1

RN150

RN7

RN6

C208

C204

C103

C106

C108

C101

C150

C152

C110

C351B

C351A

RN4

X2

X1

RN5

R607

C626

JC48

C9

JC6

1

1

11

10

2

13

25

14

1

14

28

15

1

1

1

25

1

24

3

1

13

1

1

4

24

3

1

1

6

4

5

2

2

2

1

9

2

5

3

7

4

8

6

12

10

11

13

8

16

18

17

9

7

1

8

16

9

8

1

1

1

5

4

2

10

11

20

21

30

31

40

30

80

51

50

31

81

100

14

BE

BE

EB

EB

EB

EB

EB

E B

E B

E B

BE

BE

BE

BE

BE

D400B

D401

MAIN UNIT

D400A

Q604 Q602

IC3

IC300

IC500

CN350

IC250

IC1

IC200

IC150

Q102

Q100

CN3

CN201

TU100

CN100

CN200

CN1

Q618

Q603

Q607

Q608

Q624

CN250

Q610

Q622

D603

D601

CN400

CN600

D613

D100

D605

D612

D250

D617

D251

D615

D607

D503B

D503A

D502B

D502A

D505A

D505B

D504A

D504B

D606

D610

D300

D604

D600

D350A

D350B

D351

D352A

D352B

Q350B

Q350A

Q351B

Q351A

Q616

Q300

Q620

Q301

A

B

D

F

H

J

C

E

G

I

2

1

3

5

7

4

6

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

PC BOARD

(

Component side view

)

7

8

R915

R900

R904

R920

R921

C908

12

2

13

1

R916

R902

CN900

RN901

RN900

R901

R923

C900

R917

C901

C902

C903

C904

R903

R905

R913

R911

R910

R906

R922

12

4

25

40

41

64

65

80

BE

Q900

R918

R919

R914

C906

C907

C905

R912

R909

BE

Q903

IC900

PROG

EJECT

RST

AM

FM

3

2

4

1

SRC

DISP

AUD

6

5

4

3

2

1

1

69

35

36

ATT

VOL-

VOL+

AUTO

D919

D918

D904

IC901

D902

D907

D905

D910

D909

D908

D913

D912

D906

D903

S903

S927

S902

S910

S926

S908

S916

S901

S914

S900

S925

S922

S921

S920

S928

S923

S924

S906

S913

D911

D916

D914

D901

D900

D915

S919

S918

S911

S912

S905

S904

S907

S909

S917

S929

S915

D917

CONTROL UNIT

LCD900

S801

S800

1

4

CN800

SWITCH UNIT

MAIN UNIT

Ref.No.

Address

Ref.No.

Address

Ref.No.

Address

Ref.No.

Address

IC1

4E

Q100

3F

Q351B

2G

Q611

4B

IC2

4D

Q101

3F

Q500

3F

Q612

5D

IC3

3C

Q102

3F

Q600

2E

Q614

5D

IC150

4C

Q103

3F

Q601

2E

Q615

5D

IC200

4F

Q104

4G

Q602

3B

Q616

5C

IC250

4C

Q300

3D

Q603

3C

Q617

4C

IC300

3E

Q301

3E

Q604

3B

Q618

5C

IC500

1E

Q302

3E

Q605

3C

Q620

4B

Q1

4C

Q303

3E

Q606

3B

Q621

5A

Q2

4D

Q350A

2F

Q607

3D

Q622

5B

Q3

5D

Q350B

2F

Q608

3D

Q624

5A

Q5

5E

Q351A

2G

Q610

4B

Q625

5B

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-508S

Page 1: ...9585 08 DC cord assy E30 4864 08 Plastic cabinet assy A02 1494 08 The CASSETTE MECHANISM OPERATION DESCRIPTION is the same model D40 1122 05 Please refer to the service manual for model D40 1122 05 B51 7452 00 Stay J54 0611 08 Escutcheon B07 2186 08 Screw set N99 1689 08 Screw set N99 1688 08 KRC 688 KRC 508S Panel assy A64 2088 08 Front glass assy B10 3208 08 Escutcheon assy B07 2195 08 Remote co...

Page 2: ... USED KRC 680R 578R RY 508S 688 KRC 680R KRC 508S KRC 578R RY KRC 688 E KRC 578R RY KRC 508S K KRC 680R 688 M CASS AM E AM K M FM E FM K M CD CH 310mV E K M E K M 1200mV FM K M CASS AM FM E CD CH FM K M CASS FM E AM K M AM E CD CH FRONT REAR CD CH CASS AM E AM K M FM E FM K M 730mV 560mV 1280mV 1660mV 2900mV 1490mV 400Hz 40KHz Dev 400Hz 75KHz Dev 1KHz 0dB 400Hz 30 Mod 1KHz 0dB 1370mV 670mV 1180mV ...

Page 3: ...Lighting OFF Lo 22 TEST IC test pin 23 P90 IC2_SDA I O E VOL E s data input output 24 P91 IC2_SCK O E VOL E clock output 25 P92 MUTE O Muting control Muting ON Hi Muting OFF Lo 26 P93 SW5V O SW 5 V control ON LO OFF HI 27 P94 F E_DATA I O IC3 data input output 28 P95 F E CLK O IC 3 clock output 29 P120 RTP0 CH_CON O CH control ON HI 30 P121 RTP1 CH_REQH O CH send request output Requested Lo 31 P12...

Page 4: ...75 P27 SCK0 NC O Not used 76 P80 A0 LCD_INH O Reset output to LCD driver 77 P81 A1 LCD_CE O CE output to LCD driver 78 P82 A2 SRT_SW1 I SRT position detection input 79 P83 A3 SRT_SW2 I SRT position detection input 80 P84 A4 NC O Not used 81 P85 A5 NC O Not used 82 P86 A6 NC O Not used 83 P87 A7 C MSC O EQ amp FF PLAY control PLAY HI OFF LO 84 P40 AD0 C F R O Tape transport direction switching FWD ...

Page 5: ...OFF 3 Press and hold the AUDIO key for 1 second to enter menu mode 4 Press the FM AM key to select SECURITY 5 Press and hold the Track Up Down for 2 seconds 6 Enter the code by pressing the Preset 1 2 3 and 4 keys Example To enter 3510 Press the Preset 1 key 4 times Press the Preset 2 key 6 times Press the Preset 3 key 2 times Press the Preset 4 key once 7 Press and hold the DISPLAY key for 3 seco...

Page 6: ...nect a AC voltmeter to CN200 TAPE PLAY VR200A L VR200B R 300mV a F E CASSETTE MECHANISM VR200B VR200A Rch Lch CN200 L G R a 300mV AC voltmeter ATTENTION OF ASSEMBLY Assembly of FPC Flexible PC board onto Roller ass y Turn Roller ass y by 4 times Hook the end of Roller ass y to the tongue Insert the FPC into the slit of Roller ass y then release the end of Roller ass y and the tongue www xiaoyu163 ...

Page 7: ... R254 R255 C507 R32 C506 L600 C600 C508 C509 C350A C350B C511 X150 RN1 RN150 RN7 RN6 C208 C204 C103 C106 C108 C101 C150 C152 C110 C351B C351A RN4 X2 X1 RN5 R607 C626 JC48 C9 JC6 1 1 11 10 2 13 25 14 1 14 28 15 1 1 1 25 1 24 3 1 13 1 1 4 24 3 1 1 6 4 5 2 2 2 1 9 2 5 3 7 4 8 6 12 10 11 13 8 16 18 17 9 7 1 8 16 9 8 1 1 1 5 4 2 10 11 20 21 30 31 40 30 80 51 50 31 81 100 14 B E B E E B E B E B E B E B ...

Page 8: ... C402A C309 JW1 JW9 JW17 JW10 JW2 JW11 JW13 JW5 JW8 JW7 JW12 JW3 JW4 E B E B E B E B R604 R612 R614 R610 R251 R250 C255 C609 C12 R43 JC47 R254 R255 C507 R32 C506 L600 C600 C508 C509 C350A C350B C511 X150 RN1 RN150 RN7 RN6 C208 C204 C103 C106 C108 C101 C150 C152 C110 C351B C351A RN4 X2 X1 RN5 R607 C626 JC48 C9 JC6 1 1 11 10 2 13 25 14 1 14 2 8 15 1 1 1 25 1 24 3 1 13 1 1 4 24 3 1 1 6 4 5 2 2 2 1 9 ...

Page 9: ... 84 87 85 86 C205A 0 01 R202A 180 VR200A 10K C206A 0 1u50 R210A 6 8K 3 3K R211A C208 22u16 1000P C214A C207A 0 1 R204 10 F REEL R REEL ANODE S MOTOR MODE1 MODE3 SW5V MODE2 M MOTOR S MOTOR GND 1 2 3 4 5 6 7 8 9 10 11 1 2 3 4 5 R201A 100K C201A 470P C200A 470P R200A 100K C201B 470P R201B 100K C200B 470P R200B 100K 5 4 3 2 1 2 3 5 4 1 Rch 3 GND 2 Lch 1 3 1 2 C MAIN MOTOR SUB MOTOR SUPPLY TAKE OFF 4 1...

Page 10: ...14 20 6 FR 4 5 FR P ANT 15 ILL B U 16 AMP CONT MUTE 13 14 2 3 P CON ACC 1 GND RR RR 11 12 RL 10 3 1 15 16 4 2 7 5 12 11 8 10 6 FUSE 18 17 FUSE RL FL FL 7 8 9 9 13 14 17 18 CHOKE COIL L600 Q622 625 Q621 624 Q618 620 Q616 617 Q614 615 Q610 611 784217AGF504 IC1 IC200 CXA2560Q KRC 678R RY UNIT No A YES E NO G YES CN200 YES R10 25 105 106 R205 207A 207B YES R210A 210B 211A 211B NO R644 YES YES VR200B V...

Page 11: ...48 SEG49 SEG50 52 53 50 51 SEG3 SEG36 SEG1 SEG2 1 2 3 4 COM3A COM2A COM1 NC 68 69 66 67 S49 S48 S46 S45 S43 S42 S40 S38 S35 SEG11 SEG7 SEG5 SEG4 SEG6 SEG10 SEG9 SEG8 5 6 7 8 9 10 11 12 SEG15 SEG14 SEG13 SEG12 SEG16 SEG17 SEG18 13 14 15 16 17 18 19 20 SEG39 1 SEG38 NC SEG35 NC 64 65 62 63 SEG42 NC SEG40 60 61 58 59 SEG58 2 SEG45 NC SEG43 56 57 54 55 SEG50 SEG49 SEG48 SEG46 52 53 50 51 S3 SEG36 SEG3...

Page 12: ... 08 M M M M D N G H C C F B E E E B G H N D Ax2 Ax2 K J J 1 2 3 A B Parts with exploded view numbers larger than 700 are not supplied 17 KRC 508S 688 EXPLODED VIEW www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 ...

Page 13: ... M2x1 8 BLK M2x2 5 M2x2 5 NI 2x8 BLK 1 7x5 N P Q R S N35 3004 45 N35 2004 45 N19 2148 08 N19 2149 08 N29 0518 08 3x4 2x4 BLK WASHER WASHER E RING RC1 201 274 262 275 258 212 DC1 222x2 size AAA battery Not supplied CN600 L600 F 1 CN100 CN350 TU100 284 MAIN CON MAIN S801 S800 SW PWB UNIT SW LCD900 CON 295 CON 292 CON 294 CON 293 703 777 216 271 270 265 242 268 264 269 PA1 215 267 796 251 Depends on ...

Page 14: ...14 08 LEVER N 2C N35 3004 45 SCREW 3X4 P 2C N35 2004 45 SCREW 2X4 BLK 223 2C D13 2088 08 GEAR IDOL Q 2C N19 2148 08 C WASHER 224 2C D14 0745 08 ROLLER FPC R 2C N19 2149 08 C WASHER CME1 1D D40 1141 08 CASSETTE MECHANISM ASSY S 2C N29 0518 08 E RING 228 3C E29 1807 08 CONDUCTIVE RUBBER T 1D N09 4368 05 SCREW M3X3 5 232 2C E39 0360 08 FLEXIBLE PCB ASSY 233 2C E58 0895 05 CONNECTOR 13P TDF DC1 1C E30...

Page 15: ... C 2 2UF K C302 C90 5326 08 CHIP C 0 033UF K F1 F06 1032 05 FUSE 10A C303 CK73GB1H153K CHIP C 0 015UF K C304 CK73FB1C474K CHIP C 0 47UF K 284 2D J19 5009 08 CHOKE COIL HOLDER C305 CC73FCH1H151J CHIP C 150PF J L1 L33 1055 08 CHOKE COIL 4 7uH C306 CK73GB1C104K CHIP C 0 10UF K L100 L33 1055 08 CHOKE COIL 4 7uH C307 CC73FCH1H121J CHIP C 120PF J L101 L33 1123 05 ANT COIL 52mH C308 CK73GB1C823K CHIP C 0...

Page 16: ...0W R357A B RK73FB2A101J CHIP R 100 J 1 10W R28 29 RK73FB2A104J CHIP R 100K J 1 10W R400 RK73FB2A101J CHIP R 100 J 1 10W R32 RK73EB2B104J CHIP R 100K J 1 8W R401A B RK73FB2A101J CHIP R 100 J 1 10W R33 RK73FB2A470J CHIP R 47 J 1 10W R402 RK73FB2A101J CHIP R 100 J 1 10W R34 RK73FB2A221J CHIP R 220 J 1 10W R403 405 RK73FB2A222J CHIP R 2 2K J 1 10W R35 RK73FB2A102J CHIP R 1 0K J 1 10W R406 407 RK73FB2A...

Page 17: ...SISTOR D250 11ES2C DIODE Q615 DTC124EUA DIGITAL TRANSISTOR D251 UDZ3 6B ZENER DIODE Q616 2SA1703 AN TRANSISTOR D300 1SS355 DIODE Q617 DTC124EUA DIGITAL TRANSISTOR D350A B STZ6 2Z ZENER DIODE Q618 2SA1703 AN TRANSISTOR D352A B STZ6 2Z ZENER DIODE Q620 2SC4081 TRANSISTOR D400A B STZ6 2Z ZENER DIODE Q621 DTA124EUA DIGITAL TRANSISTOR D401 STZ6 2Z ZENER DIODE Q622 2SB1565 E F TRANSISTOR D402 405 STZ6 2...

Page 18: ...A DIGITAL TRANSISTOR CM1 1A T42 1002 08 MOTOR ASSY MAIN CM2 1A T42 1001 08 MOTOR ASSY SUB A HD1 2B T31 0230 08 PLAYBACK HEAD 1 2B A10 4630 08 CHASSIS ASSY 4 3B D10 4375 08 SLIDER MAIN PLATE 5 3A D13 1494 08 GEAR B 6 3A D13 1495 08 GEAR C 7 3A D13 1496 08 GEAR D 9 2B D10 4376 08 ARM P G PLATE 10 2B J90 0948 08 GUID 11 2B D15 0919 08 PULLEY MID 12 2B D13 1497 08 GEAR P 15 2B J21 9458 08 MOUNTING HAR...

Page 19: ...Frequency Range 87 5MHz 108 0MHz Frequency Step 200kHz Frequency Step 50kHz Channel Space Selection 50k 200kHz Channel Space Selection 50k 200kHz Usable Sensitivity 9 3dBf Usable Sensitivity 9 3dBF S N 30dB 0 8µV 75Ω S N 30dB 0 8µV 75Ω FM Quieting Sensitivity 15 2dBf FM Quieting Sensitivity 15 2dBF S N 50dB 1 6µV 75Ω S N 50dB 1 6µV 75Ω Frequency Response 30Hz 15kHz Frequency Response 30Hz 15kHz 3 ...

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