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Sharp CD-BK300W, Service Manual

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Sharp CD-BK300W Service Manual Download Page 24

CD-BK300W

– 24 –

Figure 24 SCHEMATIC DIAGRAM (5/10)

A

B

C

D

E

F

G

H

1

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6

• NOTES ON SCHEMATIC DIAGRAM can be found on page 39.

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PLAY SW_B

FPA (F-REC)

FPB (R-REC)

MIC SW

LCK 0

DISTOUT/SW OUT

NO USE

NO USE

NO USE

NO USE

NO USE

NO USE

KARAOKE LATCH

P22/DIST3

P21/DIST2

P20/DIST1

P19/DIST0

P18

P17

P15

P14

P13

P12

P11

P10

P9

P8

P7

P6

P5

P4

P3

P2

VLOAD

P16

NO USE

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8

2

3

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1

+

-

M

TAPE MECHANISM

PWB-D

9

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5

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2

1

9

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3

2

1

DISPLAY PWB-B1

0V

10V

10V

10V

T2 RUN

CD CLA

52

51

T_SOL A

T_MOTOR

TIMER LED

SP_RLY

VDD

SP_DET

T1 RUN

25

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P02

P03

P04

P05

P06

P07

P08

P09

P10

P11

P12

P13

P14

P15

P16

P17

P18

P19

P20

P21

P22

F

F

F

R_REC

T1 RUN

F_REC

SOLA

SOLB

+MTR

T2 RUN

GND

T2 PLAY

TAPE

MOTOR

PLAY

F. PLAY

CASSETTE

SOLENOID

SOLENOID

PH

+B

-B

-B

-B

+B

+B

+B

+B

+B

R716
100K

R728

47K

R727

47K

M

R725

10K

R720

10K

R718

10K

R714

10K

R717

10K

R713

10K

D705

DS1SS133

R740 1K

R746

10K

R749

10K

LED722

CS709 0.022

CS708 0.022

ZD701

MTZJ6.2C

RS708 270

CS706

2.2/50

CS707

2.2/50

CS710 2.2/50

RS713 100K

RS711

100K

RS715

100K

RS703

68K

RS701

33K

RS720

180K

RS717

470K

RS709

150K

D702

DS1SS133

RS718

56K

RS714

2.2M

RS702

10K

CS704
0.0027

CS712
0.0068

CS701

270P

CS713

0.022

RS710

270

CS702

270P

IC702

KIA4558P

OPE AMP.

CS711
0.0068

RS712

820K

RS716

1M

RS706

220K

RS704

220K

RS719

15K

RS707

390K

D706

DS1SS133

RS705

12K

CS703
0.0027

D703

DS1SS133

CS705

0.022

IC703

KIA4558P

OPE AMP.

R738 1K

R739 1K

R741 1K

R742 1K

R743 1K

R745 1K

R744 1K

DT704

DS1SS133

C715
22/50

C714
47/50

R794

1K

CNP702

C719
47/25

D712

DS1SS133

D713

DS1SS133

R792

10K

R793

10K

R724

33

R736

10K

Q704

KTA1271 Y

R752

10K

Q708

KTA1273 Y

R737

10K

Q705

KTA1271 Y

Q701

KTC3199 GR

R701
100K

R702

1K

Q702

KTC3199 GR

R704
100K

R705

1K

R719

1K

R755 2.2K

R754 2.2K

R753 1.8K

R751 1K

R748 1K

R747 1K

Q703

KTC3199 GR

FL701

FL DISPLAY

FC702

Summary of Contents for CD-BK300W

Page 1: ...TYPES OF TRANSISTOR AND LED 39 WAVEFORMS OF CD CIRCUIT 40 TROUBLESHOOTING 41 FUNCTION TABLE OF IC 45 FL DISPLAY 53 REPLACEMENT PARTS LIST EXPLODED VIEW MINI COMPONENT SYSTEM MODEL CD BK300W In the interests of user safety the set should be restored to its original condition and only parts identical to those specified be used SERVICE MANUAL This document has been published to be used for after sale...

Page 2: ...BUT THE LASER COMPONENT IS CAPABLE OF EMITTING RADIATION EXCEEDING THE LIMIT FOR CLASS 1 THEREFORE IT IS IMPORTANT THAT THE FOLLOWING PRECAUTIONS ARE OBSERVED DURING SERVICING TO PROTECT YOUR EYES AGAINST EXPOSURE TO THE LASER BEAM 1 WHEN THE CABINET IS REMOVED THE POWER IS TURNED ON WITHOUT A COMPACT DISC IN POSITION AND THE PICKUP IS ON THE OUTER EDGE THE LASER WILL LIGHT FOR SEVERAL SECONDS TO ...

Page 3: ...2 W 36 W 36 W Subwoofer 116 W 58 W 58 W Output terminals Speakers 6 ohms Headphones 16 50 ohms recommended 32 ohms Input terminals Video Auxiliary audio signal 500 mV 47 kohms Microphone 1 mV 600 ohms Type 3 disc multi play compact disc player Signal readout Non contact 3 beam semiconductor laser pickup D A converter 1 bit D A converter Frequency response 20 20 000 Hz Dynamic range 90 dB 1 kHz Fre...

Page 4: ...ect Button 25 CD Track Up or Fast Forward Tape 2 Fast Wind Tuner Preset Up Button 26 Tuning and Time Down Button 27 Memory Set Button 28 Tape 2 Record Pause Button 29 CD Track Down or Fast Reverse Tape 2 Fast Wind Tuner Preset Down Button 30 Microphone Level Control 31 Microphone Socket 6 7 8 9 10 11 18 23 22 17 16 15 14 13 12 26 27 28 30 31 29 24 25 19 20 21 4 5 1 2 3 Display 1 Extra Bass Indicat...

Page 5: ... Track Up or Fast Forward Tape 2 Fast Wind Tuner Preset Up Button 18 CD or Tape Stop Button 19 CD Play or Repeat Tape 1 Play Tape 2 Forward Play Button 20 Video Auxiliary Button 21 Tape 1 2 Button 22 Volume Up and Down Buttons 1 2 15 16 17 18 19 20 22 3 6 4 7 8 9 10 13 12 11 5 14 21 Buttons with mark in the illustration can be operated on the remote control only Other buttons can be operated both ...

Page 6: ...he unit using the AC plug adaptor supplied with the unit as illustrated The AC plug adaptor is not included in areas where the AC wall socket and AC power plug can be directly connected see illustration 1 2 Setting the FM AM span selector The International Telecommunication Union ITU has established that member coun tries should maintain either a 100 kHz or a 50 kHz interval between broadcasting f...

Page 7: ...If trouble occurs 4 Press the TUNING TIME or button to adjust the hour and then press the MEMORY SET button Press the TUNING TIME or button once to advance the time by 1 hour Hold it down to advance continuously When the 12 hour display is selected AM will change automatically to PM 5 Press the TUNING TIME or button to adjust the minutes and then press the MEMORY SET button Press the TUNING TIME o...

Page 8: ...Cannot hear treble Are the capstans pinch rollers or heads dirty Sound fluctuation Cannot remove the tape If a power failure occurs during playback the heads remain engaged with the tape Do not open the compartment forcibly Wait until electricity resumes Symptom Possible cause The vocal part of a multiplexed disc is not heard Is the karaoke mode set to L CH R CH or V CANCEL Symptom Possible cause ...

Page 9: ...f the unit 2 Be sure to remove the power supply plug from the wall outlet before starting to disassemble the unit 3 Take off nylon bands or wire holders where they need to be removed when disassembling the unit After servicing the unit be sure to rearrange the leads where they were before disassembling 4 Take sufficient care on static electricity of integrated circuits and other circuits when serv...

Page 10: ... Amp PWB Transformer PWB E2 x 1 Power PWB E3 x 1 E3 x 1 E3 x 1 E3 x 1 Mic PWB Front Panel Amp PWB F1 x 2 ø3 x 10mm F1 x 2 ø3 x 10mm F2 x 1 F3 x 1 F1 x 1 ø3 x 8mm G1 x 1 ø3 x 8mm Push F3 x 1 Push Headphones PWB F4 x 1 Front Panel E3 x 1 Tape Mechanism H3 x 1 H2 x 13 ø3 x 10mm J1 x 5 ø3 x 10mm H1 x 1 Display PWB Headphones PWB Open Front Panel Cassette Holder Tape Mechanism K1 x 1 ø3 x 10mm Mic PWB ...

Page 11: ...1 Screw D1 x2 11 4 STEP REMOVAL PROCEDURE FIGURE Figure 11 3 Figure 11 1 Figure 11 2 CP BK300 Figure 11 4 P3 x 2 P2 x 2 P3 x 2 CD Servo PWB Slide Chassis P1 x 1 ø3 x 8mm Q2 x 3 Q1 x 1 Q1 x 1 CD Mechanism A1 x 4 ø4 x 20mm A4 x 2 ø4 x 20mm A3 x 2 A3 x 2 Fromt Panel Side Panel A2 x 1 Net A4 x 2 ø4 x 20mm C1 x 4 ø4 x 16mm B1 x 4 ø4 x 16mm D1 x 2 ø3 x 10mm Tweeter Woofer Subwoofer ...

Page 12: ... Note When installing the pinch roller pay attention to the spring mounting position How to remove the belt TAPE 2 See Fig 12 4 1 Remove the main belt D1 x 1 pc from the motor side 2 Remove the FF REW belt D2 x 1 pc How to remove the belt TAPE 1 See Fig 12 4 1 Remove the main belt E1 x 1 pc from the motor side 2 Remove the FF REW belt E2 x 1 pc How to remove the motor See Fig 12 5 1 Remove the scr...

Page 13: ...y method to remove the CD mechanism How to remove the loading motor See Fig 13 1 1 Bend the hooks A1 x 5 pcs to remove the loading motor 2 Remove the drive belt A2 x 1pc Figure 13 1 ADJUSTMENT MECHANISM SECTION Driving Force Check Torque Meter Specified Value Play TW 2111 Tape 1 Over 80 g Tape 2 Over 80 g Torque Check Torque Meter Tape 2 Play TW 2111 30 to 80 g cm 30 to 80 g cm Fast forward TW 223...

Page 14: ...ng offset adjustment 2 Tracking balance adjustment waveform drawing Fig 14 2 EFBL 3 Gain adjustment The gain is compensated inside the IC so that the loop gain at the gain crossover frequency will be 0 dB Focus gain adjustment Tracking gain adjustment Adjustment Since this CD system incorporates the following automatic adjustment functions readjustment is not needed when replacing the pickup There...

Page 15: ...Tracking OFF play at that specific point MEMORY key input Tracking ON play from that specific point STOP key input STOP IL isn t done VOL Last memory BAL CENTER P GEQ FLAT X BASS OFF To cancel Power OFF Sliding the PICKUP with button must only be in STOP mode MEMORY key input Adjustment result automatically will display as below for each 2 sec a FOFF_XX b TOFF_XX c TBAL_XX d TGAN_XX f FGAN_XX g RF...

Page 16: ...t Detection 02 DC Detection 03 TAPE Mechanism Error ER TA 00 Tape Mechanism Error 01 Initial Error 02 03 CD VCD Pickup Mechanism Error ER CD 00 Pickup Mechanism Error 01 PU IN SW Detection NG 02 03 04 CD Changer Mechanism Error ER CD 10 Changer Error 11 Initial Error 12 13 Tray Error ET CD 20 Tray Error 21 22 23 Focus Not Match NO DISC IL Time Over NOT READ TUN PLL Unlock ER TU 00 TUN Error 01 PLL...

Page 17: ...RVDD LVDD ADAVDD RFVDD XL1 33 8688 MHz OC DISC NO CLAMP SW CD RES CLK DI DO CE DRF WRQ 5V B6 5V B6 DGND L CH AGND VCC3 VCC2 VCC4 VCC1 IC2 M63001FP FOCUS TRACKING SPIN SLED DRIVER XIN XOUT RES WRQ DO DI CLK CE TIN2 TIN1 FIN2 FIN1 TD0 FD0 SPDO SLDO CONT5 CONT2 CONT3 CONT4 RCHO RVSS LVSS LCHO 80 42 79 75 20 5 40 18 24 23 14 8 21 22 29 35 41 47 46 7 10 9 8 7 15 1 2 17 25 42 41 83 39 4 7 6 5 16 82 26 2...

Page 18: ... B4 R L REC R L L NF R NF ALC REC T1 T2 T1 T2 NOR HIGH REF R REC L REC POP REDUCE R NF L NF SWITCHING L T2 R T2 R T1 L T1 IC101 PLAYBACK AND RECORD PLAYBACK AMP R L FM AM MPXIN STEREO AM RF IN AM OSC IN FM Q360 VT OSC X352 4 5MHZ AM BAND COVERAGE AM TRACKING T303 T306 Q302 X351 456kHz MO ST VCO FM DET FM B GND AM IF CF351 IC303 LA1832S FM IFDET FM MPX AM IF MPX AM MIX CF352 T351 FM RF OSC FM L312 ...

Page 19: ...M Q910 Q909 Q709 Q902 Q901 Q903 Q904 Q906 Q905 Q907 Q908 603 604 Q605 Q606 Q851 Q850 IC902 STK4029S POWER AMP A 10V M12V F805 T2A L 250V F806 T2A L 250V F804 T5A L 250V F802 T4A L 250V F801 T4A L 250V Vcc Vcc L OUT R OUT F803 T5A L 250V CLK MAIN REC PLAY VLOAD RESET SUBWOOFER B5 B5 B5 B5 VDD VDD KARAOKE LATCH VDD R OUT L OUT SP DET SYSTEM MUTE CE DI DO XL701 4 194304MHz Vcc Vcc IC901 STK40271 POWE...

Page 20: ...CC PICKUP UNIT TR TR TR TR FO FO FO PD VR LD F C B A E VCC VREF SLIDE SPIN PU IN 1 2 3 4 5 6 1 2 3 4 5 6 5 3 6 2 7 1 4 5 3 6 2 7 1 4 5 3 6 2 7 1 4 5 3 6 2 7 1 4 4 1 3 6 5 2 4 1 3 6 5 2 M M 4 8 5 2 1 7 3 6 4 8 5 2 1 7 3 6 4 8 5 2 1 7 3 6 4 8 5 2 1 7 3 6 2 LASER DRIVER CNP1 CNS1A CNS1B R6 33K R5 12K R4 12K R3 33K R1 12K R2 12K C1 47 25 C2 0 01 CNP2 CNS2A CNS2B C38 0 01 C39 100 10 R44 12K C41 100 10 ...

Page 21: ... FDO TDO REF1 VREF ADAVSS ADAVDD JITTC RFMON TE TEC FE TIN2 F TIN1 E FIN2 B FIN1 A RSVSS RFVDD RF EFMIN SLCIST SLCO 5V DGND L CH AGND R CH 6 3 5 4 2 6 1 3 5 4 2 6 1 3 5 4 2 6 1 9 8 7 6 2 4 5 3 1 5 4 3 2 1 3 1 2 CNS703 CNS11 CD LOADING MOTOR PWB E 2 CONSTANT VOLTAGE R49 1 D2 DS1SS133 D1 DS1SS133 Q3 KRC102 M R45 470 R46 470 R20 10K R13 1K R14 1K R15 1K R16 1K R18 1K R17 1K P C11 0 22 50 C10 10 50 2 ...

Page 22: ...641 0 0033 R608 10K C642 0 0033 C628 1 50 C629 1 50 C627 1 50 C626 1 50 C624 1 50 C124 0 0022 R109 4 7K C123 0 0022 R134 68K C154 0 047 ML R166 22K R131 33K R125 5 6K C121 1 50 C630 1 50 R854 10K R156 220K R607 10K R613 330 R615 2 2K R614 330 R616 2 2K Q604 KTC3199 GR C618 1 50 C617 1 50 R619 22K R618 1K C622 4 7 50 C620 1 50 C612 0 0027 R60 3 9 C610 0 1 ML C608 0 1 ML C61 10 5 C619 1 50 R605 3 9K...

Page 23: ...LK MIC LATCH MIC IN A_GND A_ 10V TUN_R A_GND TUN_L DO CE DI CLK D_GND A_ 10V REC_L REC_R B B CD_GND D_GND 4 13 12 1 KOK OUT L KOK IN L KOK OUT R KOK IN R 1 3 2 B B B B B B 1 2 3 4 5 6 7 8 9 B B B B B B B B B B B B B CNPK1 TO MIC PWB P29 12 C TO DISPLAY PWB P25 12 D CNP701 1 27 Q126 KRC104 M R601 1K R602 1K R603 1K CNP601 0 047 ML C830 47 25 C642 0 0033 C628 1 50 C626 1 50 C624 1 50 R633 15K R634 1...

Page 24: ... PLAY TAPE MOTOR PLAY F PLAY CASSETTE SOLENOID SOLENOID PH B B B B B B B B B R716 100K R728 47K R727 47K M R725 10K R720 10K R718 10K R714 10K R717 10K R713 10K D705 DS1SS133 R740 1K R746 10K R749 10K LED722 CS709 0 022 CS708 0 022 ZD701 MTZJ6 2C RS708 270 CS706 2 2 50 CS707 2 2 50 CS710 2 2 50 RS713 100K RS711 100K RS715 100K RS703 68K RS701 33K RS720 180K RS717 470K RS709 150K D702 DS1SS133 RS71...

Page 25: ...3 REC PLAY TO CD SERVO PWB P21 12 B R700 10K RD12 100K SW712 DISC SKIP SW711 DISC 3 RD11 33K RD10 18K SW710 DISC 2 SW709 DISC 1 RD09 10K RD08 5 6K RD07 3 9K RD06 2 7K RD05 2 2K RD04 1 5K R770 1K IC701 IX0427AW SYSTEM MICROCOMPUTER IC704 BU2092F INPUT OUTPUT EXPANDER D718 DS1SS133 C728 0 01 Q709 KRC102 M R796 47K C729 3 3 50 R797 100K SW703 TIMER SW713 OPEN CLOSE SW734 TUNER SW733 VIDEO RD36 100K S...

Page 26: ...956 18K R964 18K R962 4 7K C908 47 50 R906 820 R908 1K R904 56K C910 15P C906 220P R918 1K R901 100 C903 100 50 R902 22K C940 0 22 R993 0 22 2W R995 0 22 2W R912 0 1 1W R914 1K C912 0 022 R916 1 5K Q902 KTC3199 GR C901 10 50 D902 DS1SS133 C950 0 022 C816 47 25 ZD803 DZ13BSC R806 680 C814 3300 63 R819 22K R971 68K R970 68K C961 0 1 ML C959 2 2 50 R969 1K R968 1K C958 2 2 50 C960 0 1 ML C953 47 25 C...

Page 27: ...6K R929 820 C927 220P C929 15P R977 1K Q907 KTC3199 GR Q908 KTC3199 GR R940 56K R939 56K R941 56K C932 47 50 C937 47 50 R954 1K R953 68K C938 10 50 R952 15K Q910 KTC3203 Y CNP803 CNP803 CNP803 CNP804 FW801 L902 L904 L905 L903 SW801 VOLTAGE SELECTOR F801 T4A L 250V F802 T4A L 250V F803 T5A L 250V F804 T5A L 250V F806 T2A L 250V F805 T2A L 250V C832 0 047 ML C833 0 047 ML C803 0 047 ML C804 0 047 ML...

Page 28: ...0µH C358 1 50 C352 10 50 C350 0 022 C351 0 022 C397 0 022 R382 150 C381 12P CH X352 4 5 MHz C382 15P CH R375 470 C384 0 001 R378 1K R372 1K R374 1K R373 1K R316 4 7K CF303 C318 100P C313 22P CH R309 10K C324 3 9P UJ VD303 SVC211C C312 0 022 C306 0 022 C307 10 50 C311 18P R302 10 IC301 TA7358AP FM FRONT END C305 4 7P CH C310 15P CH BF301 B P F R326 82 C303 10P CH C304 0 01 CNP301 SO302 FM ANTENNA T...

Page 29: ... 390 CK19 0 022 RK8 5 6K CK23 0 001 CK1 0 01 RK11 1K RK10 1K RK9 1K CK43 47 25 ZDK1 MTZJ5 6B RK12 100 RK13 1 2K QK1 KTC3203Y ICK1 M65856SP MIC AMP RK2 56K RK3 56K RK4 10K RK7 1K JK1 MIC CK9 2 2 50 CK8 4 7 50 CK13 0 0047 CK17 220 10 CK18 100 16 CK16 0 22 CK15 0 068 CK25 2 2 50 CK26 2 2 50 CK12 2 2 50 CK14 0 001 CK21 0 068 CK24 2 2 50 CK33 47P CK30 2 2 50 CK29 2 2 50 CK31 0 15 CK35 47P CK34 47P CK22...

Page 30: ... VD302 VD301 VD303 1 3 5 2 4 JK601 VIDEO AUX IN R CH L CH 1 5 10 15 20 24 12 13 1 10 TO CD SERVO PWB P36 5 A CNP7 CNS11 GY RD RD GY WH GY WH GY GY GY GY RD WH GY WH GY WH GY GY WH WH WH 1 2 3 4 5 6 TO MIC P29 1 CNP CNS11 1 2 3 4 5 MAIN PWB A AM LOOP ANTENNA FM 75 OHMS GND 1 2 2 3 1 5 20 24 12 13 15 10 1 5 10 20 22 11 12 15 1 1 2 2 3 3 4 5 6 7 8 9 C388 R620 R363 R361 R364 R362 R615 R616 C616 R612 R...

Page 31: ... 3 4 5 6 7 TO TAPE2 RECORD PLAYBACK ERASE HEAD FROM TAPE1 PLAYBACK HEAD P37 10 F 1 5 10 15 20 24 12 13 1 7 GY WH GY WH GY WH RD 1 6 WH GY WH GY WH GY GY WH TO MIC PWB P29 12 G CNP7 3 4 5 6 8 9 10 7 FC701 CNP701 TO DISPLAY PWB P33 11 A 1 27 1 2 3 4 5 6 7 8 9 10 P35 12 E TO AMP PWB CNP902 3 2 1 1 2 3 1 2 3 B B C E E C B B C E B C E B C E B C E B C E B C E 1 2 3 1 2 3 3 2 1 B C E B C E B C E C E P32 ...

Page 32: ...03 SW709 DISC 1 ZD701 RS708 SW715 X BASS SW710 DISC 2 SW711 DISC 3 SW712 DISC SKIP LED LED706 LED707 LED708 1 3 5 7 9 2 4 6 8 10 1 10 FC702 TO TAPE MECHANISM PWB P37 8 A DISPLAY PWB B1 8 7 6 5 1 2 3 4 8 7 6 5 1 2 3 4 CNP8 TO CD SERVO PWB P36 4 A 24 23 1 2 3 6 7 8 9 10 11 12 13 14 15 16 1 2 3 B C E B C E B C E C725 C723 C724 R783 R784 R790 R785 R789 R786 R788 R791 R787 R770 RD07 RD35 RD36 RD13 RD14...

Page 33: ... SW723 TAPE SW734 TUNER SW729 STOP SW728 PLAY SW727 FAST FORWARD SW717 REVERSE MODE LED722 LED702 LED701 LED705 29 30 31 32 33 24 23 25 26 27 28 34 35 36 37 38 39 40 41 42 43 44 56 57 58 3 1 1 7 5 11 9 15 13 19 17 23 21 2 6 4 10 8 14 12 18 16 22 25 27 24 26 20 FC701 CNP601 27 TO MAIN PWB P31 8 A BR COLOR TABLE RD R OR YL GR BL VL GY WH W BK PK BROWN RED ORANGE YELLOW GREEN BLUE VIOLET GRAY WHITE B...

Page 34: ...POWER PWB D1 AC POWER SUPPLY CORD AC 110 127 220 230 240 V 50 60 Hz R821 R822 D803 C803 C804 C832 D802 C833 ZD804 R814 D804 R807 D805 D806 D807 C806 C805 RD WH GY WH GY D808 D809 C807 C808 D810 R802 Q801 R801 C812 C810 R803 F806 T2A L 250V F805 T2A L 250V F801 T4A L 250V F802 T4A L 250V F803 T5A L 250V F804 T5A L 250V ZD801 C809 ZD802 R804 C811 CNP903 BI901 SW801 VOLTAGE SELECTOR LG902 LG901 BR CO...

Page 35: ...D903 C912 R947 Q902 R916 R946 R914 Q901 R913 R915 R920 C905 C814 R921 R911 R909 R996 R994 R819 R805 R910 C918 IC902 R902 C919 R901 R923 R922 R993 R995 R912 R908 RY902 R948 R949 R950 R951 L905 L904 L902 C937 Q909 R952 Q910 R980 R979 C938 R953 R954 D909 LG903 R966 C955 R965 C945 C956 C960 C910 R960 R970 R904 C957 C952 R959 R918 C958 C986 C906 C951 C953 R906 R968 C947 C903 C940 R962 C950 R961 C948 IC...

Page 36: ...2 CNP7 C24 L1 Q2 ZD2 CNP5 C48 C18 CD SERVO PWB C CNS703 P32 1 B FROM DISPLAY PWB 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 CNS1B CNS1A CNS2B BL WH BL WH BL WH RD RD WH GY WH GY WH GY WH 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 3 4 1 2 5 6 7 1 7 1 8 PICKUP UNIT 306 CNS3B CNS3A RD WH GR WH GR WH CD MOTOR PWB G 1 2 3 4 5 6 1 2 3 4 5 6 M1 SPINDLE MOTOR SW4 PICKUP IN M2 SLED MOTOR 1 2 3 4 5 6 6 5 4 3 2 1 6 5 ...

Page 37: ...T T UP DOWN MOTOR SW2 CLAMP SW1 OPEN CLOSE CNP101 P31 11 D TO MAIN PWB TAPE 1 PLAYBACK HEAD PK BK BK WH WH PK GR 2 3 1 TAPE MOTOR 1 1 2 3 2 4 5 6 7 9 8 1 9 CNS702 SOLENOID PH SW SW SW SW SOLENOID TAPE MECHANISM PWB F TAPE MECHANISM ASSEMBLY P32 4 G TO DISPLAY PWB FC702 BR COLOR TABLE RD R OR YL GR BL VL GY WH W BK PK BROWN RED ORANGE YELLOW GREEN BLUE VIOLET GRAY WHITE BLACK PINK P32 12 C TO MAIN ...

Page 38: ... 2 1 V 2 1 V 4 9 V 3 7 V 3 7 V 9 8 7 6 5 4 3 2 1 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 40 39 38 42 41 37 36 35 34 33 32 31 PIN NO VOLTAGE IC2 0 V 0 V 0 V 5 3 V 5 3 V 5 0 V 5 0 V 5 3 V 5 0 V 5 0 V 5 0 V 5 0 V 5 0 V 5 0 V 5 0 V 5 0 V 5 0 V 5 0 V 5 0 V 5 0 V 5 0 V 5 0 V 10 2 V 0 V 9 8 7 6 5 4 3 2 1 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 PIN NO VOLTAGE IC601 0 V 0 V 0 5 ...

Page 39: ...c capacitor the expression capacitance withstand voltage is used CH TH RH UJ Temperature compensation ML Mylar type P P Polypropylene type Schematic diagram and Wiring Side of P W Board for this model are subject to change for improvement without prior notice REF NO DESCRIPTION POSITION POSITION SW717 REVERSE MODE ON OFF SW722 CD ON OFF SW723 TAPE ON OFF SW724 TUNING DOWN ON OFF SW725 MEMORY SET O...

Page 40: ...div NORM 20 kS s 2 1 Record Length Smoothing ON CH1 0 000 V CH2 0 000 V Main 100 K Zoom 2 K Mode NORMAL Type EDGE CH2 Delay 2 924 ms Hold off 0 2 µs CH3 0 00 V CH4 0 00 V BW FULL Trigger Filter Offset 1 IC1 21 6 IC1 22 T T TE DRF Stopped CH1 10 V DC 10 1 CH2 1 V DC 10 1 100 ms div 100 ms div NORM 100 kS s 2 1 Record Length Smoothing ON CH1 0 0 V CH2 0 00 V Main 100 K Zoom 2 K Mode NORMAL Type EDGE...

Page 41: ...operate Clean the objective lens and check the playback operation When this section does not operate even after the above step is taken check the following items Remove the cabinet and follow the trouble shooting instructions Track skipping and or no TOC Table Of Contents may be caused by build up of dust other foreign matter on the laser pickup lens Before attempting any adjustment make certain t...

Page 42: ...s servo activated Waveform drawing Figure 42 2 Pins 7 12 79 and 80 on IC1 Check the laser diode driver Q1 peripheral circuit When a disc is loaded start playback operation 2 Does DRF change from L to H Is the disc rotating 3 Is the HF waveform normal Waveform drawing Figure 42 3 Check the spin system If the disc is spinning and a HF waveform is generated DRF will go H Figure 42 1 Check the laser d...

Page 43: ...ctivated Check the peripheral circuits at pins 14 15 and 20 on IC1 and CNS1A B If the waveform shown in Figure 43 1 appears and soon after NO DISC appears 2 Tracking system check Check the TE waveform at pin 15 on IC1 A normal jump operation cannot be completed or the beginning of the track cannot be found Check the around pin 20 on IC1 Initialization is possible but play is not possible Data cann...

Page 44: ...0 2 µs CH3 0 00 V CH4 0 00 V BW FULL Trigger Filter Offset CH1 v DIV 500 mV 1999 04 05 17 33 17 Is pin 52 C2F on IC1 L Yes No The HF waveform is normal and the time is displayed normally but no sound is produced Or the sound has dropouts 5 Others There are too many error flags on a damaged disc which makes error correction impossible Check again using a known good disc 1 When playing at normal spe...

Page 45: ...rpose I O terminal 5 27 SBCK CONT6 Input Output Input Mode General purpose I O terminal 6 or Subcode reading clock input terminal 28 SBCK FG Input Subcode reading clock input terminal FG signal input terminal external emphasis setting terminal Terminal functions are set by commands When not used connect to 0 V 29 DEFECT Output L Defect terminal 30 V P Output H Auto switching monitor output termina...

Page 46: ...must be set LOW after first applied power on 67 DRF Output L Focus detection output port 68 VDD5 Input Power supply for Microprocessor 69 VSS GND for digital circuit Must be connected to 0 V 70 CONT3 Input Output Input General purpose port 1 71 CONT2 Input Output Input General purpose port 2 72 CONT1 Input Output Input General purpose port 3 73 PDO1 Output Internal VCO control phase comparator out...

Page 47: ...H0 RVSS LVSS LCH0 LVDD LC78645E MIX LPF LPF LPF TBAL TBAL RAM LEVEL SET AGC EQ SW PH BH MONI CONT A D SERVO PROCESSOR TRACK JUMP AUTO ADJUST JITTER DETECT 1bit DAC 8FS DIGITAL FILTER GENERAL PURPOSE PORTS COMMAND INTERFACE CLOCK GENERATOR CLV CAV CONTROL PLL VCEC SLICE LEVEL CONTROL APC S H D A SW DRF RUPTURE DEFECT FRAME SYNC DETECT PROTECT INSERT EFN DECODE VDD SUBCODE DECODE CRC MONITOR SIGNAL ...

Page 48: ...Input Output DS DATA INPUT 27 ANI6 NO USE Input GND TUNER SM Input TUNER SIGNAL METER INPUT DSA_ACK Input Output DSA ACR 28 ANI5 SPEANA 2 Input SPEANA DATA INPUT 16 kHz 29 ANI4 SPEANA 1 Input SPEANA DATA INPUT 1 kHz 30 ANI3 SPEANA 0 Input SPEANA DATA INPUT 63 kHz 31 33 ANI2 ANI0 KEY 2 KEY 0 Input KEY INPUT 34 AVDD AVDD Input ANALOG VDD 35 AVREF AVREF Input ANALOG REF VOLTAGE 36 INTP3 P_IN Input PO...

Page 49: ...35 NO USE Input GND RDS RDDA ESS_STB Input RDS TRANSMIT DATA INPUT DSA STROBE 65 FIP34 NO USE Output GND RDS RDCL ESS_DI Output RDS CLOCK DSA DATA OUTPUT 66 FIP33 NO USE Input GND RDS READY ESS_DO Input RDS READY DSA DATA INPUT 67 P103 DIST3 Input DESTINATION INPUT FIP32 P22 Output FL DISPLAY DRIVER 68 P102 DIST2 Input DESTINATION INPUT FIP31 P21 Output FL DISPLAY DRIVER 69 P101 DIST1 Input DESTIN...

Page 50: ... CONTROL CIRCUIT CONTROL CIRCUIT CONTROL CIRCUIT LOUT LBASS 0 1uF LIN LSEL0 L4 L3 L2 L1 R1 R2 R3 R4 RSEL0 R1N RTRE LTRE RBASS 0 1uF ROUT Yref VDD CL DI CE YSS CCB INTERFACE CD Tuner Tape Video 24 23 22 21 20 19 18 17 16 15 14 13 1 2 3 4 5 6 7 8 9 10 11 12 LC75341 DI CE VSS LOUT LBASS LTRE LIN LSEL0 L4 L3 L2 L1 CL VDD VREF ROUT RBASS RTRB RIN RSEL0 R4 R3 R2 R1 ...

Page 51: ...ilter before A D convertor for digital delay 17 LPF1 OUT Output Low pass filter 1 output Pre filter before A D convertor for digital delay 18 AD INTOUT Output A D integrator output Composes D A conversion integrator with external capacitor 19 AD INTIN Input A D integrator input Composes D A conversion integrator with external capacitor 20 ADCONT A D control To determine adaptive time constant of A...

Page 52: ...9 PS2 Input Phase shift input 2 Determines a constant at time of phase shift 40 LATCH Input Latch input via serial bus 41 CLOCK Input Clock input via serial bus 42 DATA Input Data input via serial bus 42 DATA 41 CLOCK 40 LATCH 39 PS2 38 PS1 37 VCFIL 36 LOUT 35 ROUT 34 SOURCEOUT 33 KEYCONIN 32 RIN 31 LIN 30 VOLIN 29 LPF2OUT 28 LPF2IN2 27 LPF2IN1 26 DAINTOUT 25 DAINTIN 24 DACONT 23 VCC 22 1 2 3 4 5 ...

Page 53: ...B10 B11 B12 B13 B14 B15 B16 B17 B18 B19 B20 B21 9G S1 B1 B2 B3 B4 B5 B6 B7 8G Dp d c n p r e m g b k j h f a S2 S3 S4 S5 7G Dp d c n p r e m g col b k j h f a S2 S3 S4 S5 6G Dp d c n p r e m g b k j h f a S2 S3 S4 S5 5G Dp d c n p r e m g b k j h f a S2 S3 S4 S5 4G Dp d c n p r e m g b k j h f a S2 S3 S4 S5 3G Dp d c n p r e m g b k j h f a S2 S3 S4 S5 2G Dp d c n p r e m g b k j h f a S2 S3 S4 S5...

Page 54: ...CD BK300W 54 MEMO ...

Page 55: ...lindrical type without lead wire VC TV Square type without lead wire VC TQ Square type without lead wire VC CY Square type without lead wire VC CZ Square type without lead wire VC J The 13th character represents capacity difference J 5 K 10 M 20 N 30 C 0 25 pF D 0 5 pF Z 80 20 If there are no indications for the electrolytic capacitors error is 20 Resistors VRD Carbon film type VRS Carbon film typ...

Page 56: ...licon DS1SS133 D901 907 VHDDS1SS133 1 J AB Silicon DS1SS133 D909 VHDDS1SS133 1 J AB Silicon DS1SS133 DK1 2 VHDDS1SS133 1 J AB Silicon DS1SS133 DT704 VHDDS1SS133 1 J AB Silicon DS1SS133 LED701 702 VHP4204UYT7 1 J AD LED Yellow 4204UYT7 LED705 VHP4204UYT7 1 J AD LED Yellow 4204UYT7 LED706 708 VHP4204UGT7 1 J AD LED Green 4204UGT7 LED722 VHP4204SRT7 1 J AD LED Red 4204SRT7 ZD1 VHEDZ3R3BSB 1 J AB Zene...

Page 57: ...J AA 0 001 µF 50V C393 VCEAZA1HW105M J AB 1 µF 50V Electrolytic C394 VCEAZA1EW476M J AB 47 µF 25V Electrolytic C395 VCTYMN1EF223Z J AA 0 022 µF 25V C396 VCEAZA1AW107M J AB 100 µF 10V Electrolytic C397 VCTYMN1EF223Z J AA 0 022 µF 25V C398 VCEAZA1AW107M J AB 100 µF 10V Electrolytic C399 VCTYMN1EF223Z J AA 0 022 µF 25V C401 VCCSPA1HL150J J AA 15 pF 50V C602 VCEAZA1HW226M J AB 22 µF 50V Electrolytic C...

Page 58: ... VRD ST2CD102J J AA 1 kohm 1 6W R39 40 VRD MN2BD681J J AA 680 ohms 1 8W R41 VRD MN2BD123J J AA 12 kohms 1 8W R42 VRD MN2BD122J J AA 1 2 kohms 1 8W R43 VRD MN2BD221J J AA 220 ohms 1 8W R44 VRD ST2CD123J J AA 12 kohms 1 6W R45 46 VRD MN2BD471J J AA 470 ohms 1 8W R47 VRD MN2BD101J J AA 100 ohm 1 8W R49 VRD ST2EE1R0J J AA 1 ohm 1 4W R101 102 VRD MN2BD102J J AA 1 kohm 1 8W R103 104 VRD MN2BD222J J AA 2...

Page 59: ...AA 56 kohms 1 6W R922 923 VRD RT2HD4R7J J AA 4 7 ohms 1 2W 1 R924 925 VRG ST2EC101J J AB 100 ohm 1 4W Fusible R926 VRD ST2CD223J J AA 22 kohms 1 6W R927 928 VRD ST2CD563J J AA 56 kohms 1 6W R929 930 VRD ST2CD821J J AA 820 ohms 1 6W R931 932 VRD ST2CD102J J AA 1 kohm 1 6W R933 934 VRN VV3AAR10J J AB 0 1 ohm 1W R935 936 VRD ST2CD123J J AA 12 kohms 1 6W R937 938 VRD ST2CD102J J AA 1 kohm 1 6W R939 94...

Page 60: ...ber SW4 QSW F9001AW01 J AD Switch Leaf Type Pick Up In SW601 QSW S0024AWZZ J AE Switch Slide Type Span Selector SW701 92LSWICHT1663T J AC Switch Key Type ON Stand by SW702 92LSWICHT1663T J AC Switch Key Type Clock SW703 92LSWICHT1663T J AC Switch Key Type Timer SW709 92LSWICHT1663T J AC Switch Key Type Disc 1 SW710 92LSWICHT1663T J AC Switch Key Type Disc 2 SW711 92LSWICHT1663T J AC Switch Key Typ...

Page 61: ...8 7 92PFF19N 11 J Belt Main Tape 1 258 8 92PF522 061 J Clutch Ass y Block Tape 1 258 9 92PFF19S 52 J Belt FF REW Tape 1 258 10 92PF513 861 J Head Plate Block Tape 1 258 11 92PF522 063 J Clutch Ass y Block Tape 2 259 92LCAUT1706A1 J AC Label Class 3 260 92LCAUT1706B J AA Label Laser 261 TSPC 0871AWZZ J Label Specification For Taiwan 261 TSPC 0872AWZZ J Label Specification For Thailand 262 JKNBK0012...

Page 62: ...907 LHLDZ8001AWSA J AD Catching Holder 908 QCNWN1834AWZZ J AK Tweeter Cord With Capacitor C1 2 909 XJBSD40P20000 J AA Screw ø4 20mm 910 XJBSD40P16000 J AB Screw ø4 16mm 911 XJBSD30P10000 J AA Screw ø3 10mm 912 XMBSD40P16000 J AC Screw ø4 16mm 913 XMBSF40P20000 J AC Screw ø4 20mm 914 PFLT 0046AWZZ J AC Felt 915 TSPC 0877AWZZ J Label Specifications 916 QCNWN1912AWZZ J Subwoofer Cord 917 QCNWN1903AWZ...

Page 63: ...CD BK300W A B C D E F G H 1 2 3 4 5 6 Figure 8 CD MECHANISM EXPLODED VIEW 8 CD BK300W 306 1 701 304 701 302 301 702 303 M1 703x2 305x2 SW4 M2 305 PWB G 306 2 306 3 306 704 ...

Page 64: ... 214 FL701 610x2 201 15 201 17 201 201 31 201 1 201 12 201 8 201 4 201 6 201 7 201 5 201 2 216 219x2 201 3 217 213 617 604 604 230 212 222 203 203 2 203 1 224x12 PWB D3 PWB D2 PWB H 601 220 T801 PWB D1 210 612x2 603x2 603x1 606x13 610x3 610x10 610x2 610 261 605x2 610x1 608x5 609x1 609x1 609x1 603x1 603x1 610x2 610x2 616x4 209 611x2 611x2 201 23 201 24 201 30 201 32 Silicon Grease Silicon Grease 20...

Page 65: ...C D E F G H 1 2 3 4 5 6 10 CD BK300W CD MECHANISM 204 250 228 229 236 254 252 232 232 232x4 PWB C 232 225 M3 SW3 PWB E 607x2 607x2 SW2 SW1 247 253 235 251 256 615 206 238 257 241 246 248 245 244 243x4 242 239 249 255 234 231 240 237 614 227 233 260 259 ...

Page 66: ...916 904 SP1 2 SP5 6 SP3 4 914x4 906x4 905x4 911x2 917 C1 2 Capacitor N P 3 3µF 100V C1 2 Capacitor N P 3 3µF 100V Electrolytic SP1 2 TWEETER SP3 4 WOOFER SP5 6 SUBWOOFER BL BK BK BK BK RD RD RD SP3 4 WOOFER SP1 2 TWEETER SP5 6 SUBWOOFER with Capacitor C1 2 908 Figure 11 SPEAKER EXPLODED VIEW 11 ...

Page 67: ...CD BK300W 12 MEMO ...

Page 68: ... in Japan SA SZ EX A0105 1775DS HA M COPYRIGHT 2001 BY SHARP CORPORATION ALL RIGHTS RESERVED No part of this publication may be reproduced stored in a retrieval system or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise without prior written permission of the publisher ...

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