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Sharp CD-BA250H, Service Manual

The Sharp CD-BA250H is a versatile audio system that delivers powerful sound. To ensure seamless operation, it comes with an easy-to-understand Operation Manual. Download this manual for free at manualshive.com, unlocking the full potential of your CD-BA250H with clear instructions and helpful insights.

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CD-BA250H/CD-BA2600H

– 24 –

A

B

C

D

E

F

G

H

1

2

3

4

5

6

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

Figure 24 SCHEMATIC DIAGRAM (3/9)

0.7 V

0 V

0 V

0 V

0.7 V

0 V

0 V

0 V

0 V

0 V

0 V 

0.7 V

0.7 V

0 V

0 V

0 V

0 V

0 V

0.7 V

0.7 V

0

9.3 V

8.6 V

9.3 V

0 V

2

1

3

1

2

3

3.4 V

3.4 V

0 V

0 V

0 V

1

2

3

4

5

6

7

8

9

10

11

12

13

14

17

18

19

20

21

MAIN PWB-A1(1/3)

TO  POWER  SECTION

P26  1-G

TO CD SERVO PWB

P23  12-C

CNP7

A_GND

M_GND

ERASE

T2_R2

T2_R1

T2_L1

T2_L2

1 

2 

3 

4 

5 

6 

7 

T1_R

T1_L

A_GND

3 

2 

1 

–15 V

VF1 

VF2 

–VP 

P_IN

M_+12 V

A+10 V 

GND 

GND 

SW_5 V

L-CH

R-CH

SW_5 V

SW_5 V 

GND 

GND 

GND 

SP_RLY

SP_DET

(A_+B)

CD_+B 

A_+B

CD_+B 

CD_GND 

L-CH

A_GND 

R-CH

3 

4 

5 

6 

1 

2 

6 

5 

4 

3 

2 

1 

24

23

22

21

20

19

18

17

16

15

14

13

12

11

10

9 

8 

7 

6 

5 

4 

3 

2 

1 

CD

TUNER 

DECK

AUX 

DI

CE

VSS 

LOUT

LBASS 

LTRE

LIN 

L4

L3

L2

L1

CLK

VDD

VREF

ROUT

RBASS

RTRE

RIN

RSEL0

R4

R3

R2

R1

INTERFACE 

CCB 

+ 

– 

+ 
–

+ 

-

+ 

–

+ 

–

+ 

– 

+ 

- 

+ 

– 

LSEL0 

24

23

22

21

20

19

18

17

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

L 

R 

Vcc

ALC 

GND 

ALC 

RIPPLE

Nor/CrO2

–

+ 

–

+ 

Hich=T1 

+ + 

–

– 

Hich=CHROME 

56K 

112K

56K 

112K

L 

R 

REC_R

+B

+B

+B

+B

+B

+B

-B

-B

IC101

AN7345K  

3

2

1

7

6

5

4

3

2

1

TAPE2

RECORD/

PLAYBACK HEAD

ERASE HEAD

R-CH

L-CH

TAPE1

PLAYBACK HEAD

L-CH

R-CH

Q112~Q114 : SWITCHING

Q101~Q106 : SWITCHING

Q107,Q108 : MUTING

C651

220P

C652

220P

C650

220P

C121 0.022

R146

10K

C141 100/16

R149

150 

C133     22/50

C134     220/10

C603

22/50

R60

3.9K

R602

1K

R618

330

R619

330

BI601 

CNS601 

R604

10K 

C610

1/50 

C601 220/16

C612

0.0027

C614

1/50

C616

4.7/50

C618

1/50

C620

1/50

C624

1/50

C622

1/50

R601

1K

R621    22K

C639 1/50

R614 3.3K

R615 3.3K

R611

2.2K

Q601

KTC3199 GR

R613 390

C636

0.001

R610

2.2K

Q602

KTC3199 GR

R612

390

C635

0.001

R620 22K

C640 22/50

Q604

KTC3199 GR

Q603

KTC3199 GR

C637

0.001

C638

0.001

R616

2.2K

R617

2.2K

CNP102

C106 560P

R130    1.5K

R112    15K

C108  
330P

Q102

2SC1845 F

Q104

2SC1845 F

Q112

KTA1266 GR

Q101

2SC1845 F

R103

2.2K

R106

3.3K

R104

2.2K

R105

3.3K

Q103

2SC1845 F

R119

3.9K

R117

100K

R139

10K

Q107

KTC3199 GR

R138

10K

Q108

KTC3199 GR

R147

10K

C136

0.022

Q113

KRC104 M

R111

15K

C113

0.033 

R123

5.6K

C117 47/25

C115 560P

C111

100/25

R120

3.9K

R118

100K

R124

5.6K

C114

0.033

C116

560P

C118 47/25

R116

56

C112

100/25

R126   3.9K

R122 33K

C120   0.0022

R121 33K

C119 0.0022

R127   3.9K

R125    68K

R132

100

C127 0.022

C123 270P

C126

22/50

L102

2.2 

µ

H 

C128    0.022

C130    0.0033

R102

1K

Q114

KRC104 M

R128 6.8K

C122    3.3/50

R129 6.8K

C131 47/25 

C129     0.0033

R133   100 

C125

22/50

R131   1.5K

C101

560P

R101

1K

C132

47/25

C103

180P

C104

180P

R107 47K

C102

560P

C124 270P

R114

1K

R109 4.7K

C105    560P

R137

220K

R148

4.7K

C110

330P

Q106 KTC3199 GR

R134

10K

R110 4.7K

L101 2.2

µ

H 

R113

1K

C109

330P

C107
330P

Q105

KTC3199 GR 

R135 10K

R115

56

R108 47K

C623

1/50

C621

1/50

C619

1/50

C617

1/50

C615

4.7/50

C613

1/50

C605

0.15

C607

0.1

C626

0.0056

R608

1.2K

R606

3.9K

C608

0.1

C606    0.15

CNP101

IC101

AN7345K

PLAYBACK AND RECORD/

PLAYBACK AMP.

IC601

LC75341

AUDIO PROCESSOR

Summary of Contents for CD-BA250H

Page 1: ... 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 sales service only The contents are subject to change without notice SHARP CORPORATION MINI COMPONENT SYSTEM MODEL CD BA250H CD BA250H Mini Component System consisting of CD BA250H main unit and CP BA250H speaker system MINI COMP...

Page 2: ...zardous radiation exposure Laser Diode Properties Material GaAIAs Wavelength 780 nm Emission Duration continuous Laser Output max 0 6 mW CAUTION INVISIBLE LASER RADIATION WHEN OPEN DO NOT STARE INTO BEAM OR VIEW DIRECTLY WITH OPTICAL INSTRUMENTS VARNING OSYNLIG LASERSTRALNING NAR DENNA DEL AR OPPNAD STIRRA EJ IN I STRALEN OCH BETRAKTA EJ STRALEN MED OPTISKA INSTRUMENT ADVERSEL USYNLIG LASERSTRALIN...

Page 3: ...ut power 150 W Rated input power 75 W Impedance 6 ohms Dimensions Width 220 mm 8 11 16 Height 330 mm 13 Depth 217 mm 8 9 16 Weight 3 0 kg 6 6 lbs each Amplifier CD BA250H for U K Cassette deck CD BA250H for U K Output power RMS 150 W 75 W 75 W 10 T H D RMS 104 W 52 W 52 W 0 9 T H D Output terminals Speakers 6 ohms Headphones 16 50 ohms recommended 32 ohms Input terminals Video Auxiliary audio sign...

Page 4: ...Button 26 CD Track Up or Fast Forward Tape 2 Fast Forward Tuner Preset Up Button 27 Tuning and Time Down Button 28 Memory Set Button 29 Tape 2 Record Pause Button 30 CD Track Down or Fast Reverse Tape 2 Rewind Tuner Preset Down Button 4 5 6 7 1 2 3 8 9 10 17 25 23 24 22 21 16 15 14 13 12 11 27 28 29 30 26 18 19 20 Display 1 RDS Indicator 2 Programme Type Indicator 3 Traffic Announcement Indicator ...

Page 5: ...elect Button 10 Tape 2 Record Pause Button 11 CD Button 12 Tuner Band Button 13 On Stand by Button 14 Extra Bass Button 15 CD Stop Button 16 CD Play or Repeat Button 17 CD Track Up or Fast Forward Button 18 CD Random Button 19 Tuner Preset Up and Down Buttons 20 Tape 2 Play Button 21 Tape 2 Rewind Button 22 Tape 2 Fast Forward Button 23 Video Auxiliary Button 24 Tape 1 25 Volume Up and Down Button...

Page 6: ... AM 0 00 PM 11 59 Note that this can only be set when the unit is first installed or it has been reset Refer to step 3 under 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 Holdit down to advance continuously When the 12 hour display is selected AM will change automaticall...

Page 7: ...ollers 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 remote control does not oper ate Is the AC power lead of the unit plugged in Is the battery polarity respected Are the batteries dead Is the distance or angle in...

Page 8: ... Insert the batteries Replace the cover battery cover as shown 1 2 2 FM antenna 1 Remote control 1 AM loop antenna 1 System connections 3 3 AM loop antenna FM antenna Red Black Right speaker Left speaker Wall socket AC 230 V 50 Hz For U K Wall socket AC 230 V 50 Hz Except for U K Right speaker Left speaker RCA lead not supplied To the line output sockets VCR DVD etc TV ...

Page 9: ...p ply voltage due to lightning etc or if it is operated incorrectly it may malfunction If such a problem occurs do the following 1 Set the unit to the stand by mode and turn the power on again 2 If the unit is not restored in step 1 unplug and plug in the unit and then turn the power on 3 If neither step 1 nor 2 restores the unit do the follow ing Press the ON STAND BY button to enter the power st...

Page 10: ...s concerned with travel to near and far des tinations package tours and travel ideas and opportunities Not for use for announcements about problems delays or roadworks affect ing immediate travel where TP TA should be used LEISURE Programmes concerned with recreational activities in which the listen er might participate Examples include Gardening Fishing Antique collecting Cooking Food Wine etc JA...

Page 11: ...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 servicing Figure 11 2 Figure 11 3 CD BA...

Page 12: ... 1 CD Player Unit K1 x 2 1 3 2 L1 x 3 L1 x 3 Main PWB Front Panel Headphones PWB Transformer PWB Power PWB E2 x 2 E4 x 1 E3 x 1 E2 x 1 F1 x 2 ø3 x 8mm E1 x 2 ø3 x 10mm G2 x 1 G1 x 12 ø3 x 10mm H1 x 5 ø3 x 10mm Display PWB Front Panel Headphones PWB Open Cassette Holder Tape Mechanism J1 x 1 ø3 x 10mm Lug Wire M3 x 2 M2 x 2 M3 x 2 CD Servo PWB Slide Chassis M1 x 1 ø3 x 8mm ...

Page 13: ...3 Tweeter 1 Screw C1 x2 13 3 STEP REMOVAL PROCEDURE FIGURE Figure 13 2 Figure 13 1 CP BA250H CP BA2600H Figure 13 3 N2 x 3 N1 x 1 N1 x 1 CD Mechanism A1 x 1 Screwdriver Driver should be pried away from Speaker Box Front Panel Speaker Box B1 x 4 ø4 x 12mm Woofer C1 x 2 ø3 x 10mm Tweeter ...

Page 14: ...n of the arrow B Note When installing the pinch roller pay attention to the spring mounting position How to remove the belt TAPE 2 See Fig 14 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 14 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 14 5 ...

Page 15: ...x 5 pcs to remove the loading motor 2 Remove the drive belt A2 x 1pc Figure 15 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 2231 70 to 180 g cm Rewind TW 2231 70 to 180 g cm Specified Value Tape 1 Specified Value Adjusting Point...

Page 16: ... adjustment waveform drawing Fig 16 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 Therefore different PWBs and pickups can be ...

Page 17: ...nput 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...

Page 18: ...Current 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 ...

Page 19: ... XVDD RVDD LVDD ADAVDD RFVDD XL1 33 8688 MHz OC DISC NO CLAMP SW CD RES CLK DI DO CE DRF WRQ B6 5V B6 5V 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 8...

Page 20: ...D TAPE 1 R CH L CH R CH L CH IC601 LC75341 AUDIO PROCESSOR B4 R L REC R L L NF R NF ALC REF R REC L REC POP REDUCE R NF L NF SWITCHING L T2 R T2 R T1 L T1 R L FM AM MPXIN STEREO AM RF IN AM OSC IN FM Q360 VT OSC X352 4 5 MHz AM BAND COVERAGE AM TRACKING T303 T306 X351 456 kHz MO ST VCO DET FM FM B GND AM IF CF351 FM AM IF MPX IC303 LA1832S FM IF DET FM MPX AM IF AM MIX CF352 T351 CF303 CF301 FE301...

Page 21: ... Q603 Q604 Q612 Q613 IC903 KIA7810AP VOLTAGE REGULATOR IC902 KTC2026 IC901 STK4029S POWER AMP F903 T2A L 250V F904 T2A L 250V F902 T4A L 250V F901 T4A L 250V Vcc Vcc L OUT R OUT CLK MAIN AC POWER SUPPLY CORD REC PLAY VLOAD RESET GROUND B7 B7 B7 B7 B5 VDD VDD VDD SP DET CE DI DO XL700 4 194304 MHz BIAS T1 T2 AVDD KEY SW701 SW707 SW712 SW718 SW720 SW727 SW729 SW732 TO CD SECTION IC701 IX0401AW SYSTE...

Page 22: ... VREF VCC 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 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 CNP3 C...

Page 23: ...LDO SPDO 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 5 V 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 1 2 3 4 8 6 5 7 9 5 4 3 2 1 3 1 2 CNS8 CNS601 CD LOADING MOTOR PWB E 2 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 C11 22 50 C10 10 50 C5 7 ML R11 10K...

Page 24: ... R618 330 R619 330 BI601 CNS601 R604 10K C610 1 50 C601 220 16 C612 0 0027 C614 1 50 C616 4 7 50 C618 1 50 C620 1 50 C624 1 50 C622 1 50 R601 1K R621 22K C639 1 50 R614 3 3K R615 3 3K R611 2 2K Q601 KTC3199 GR R613 390 C636 0 001 R610 2 2K Q602 KTC3199 GR R612 390 C635 0 001 R620 22K C640 22 50 Q604 KTC3199 GR Q603 KTC3199 GR C637 0 001 C638 0 001 R616 2 2K R617 2 2K CNP102 C106 560P R130 1 5K R11...

Page 25: ...C PLAY T_T1 T2 T_BIAS CLK DI TUN_SM CE DO 8 7 6 9 13 5 2 4 3 14 1 12 11 10 15 20 19 17 18 24 23 22 16 25 21 26 27 28 REC_R B B B B B B B B MUTING BIAS SWITCHING CNP701 R622 220K R623 220K C133 22 50 C134 220 10 C625 0 0056 R609 1 2K C603 22 50 C611 0 0027 R607 3 9K R141 4 7K Q110 KRC104 M R136 220K C135 0 022 C601 220 16 R603 1K R690 6 8K R693 33K R691 6 8K R692 33K C693 0 001 D691 DS1SS133 C690 3...

Page 26: ...22 BI902 C915 0 022 C916 22 50 R909 22K C904 2200 63 C903 2200 63 R902 22K R901 22K R903 3 3K R957 56K ZD904 DZ130BSB C970 6800 16 Q908 KRA107 M C931 0 22 50 C930 0 22 50 C969 3 3 50 Q907 KRC107 M R933 56K R931 100K ZD905 DZ2 4BSB R908 560 C907 2200 35 R943 100 C941 100 50 R945 0 22 2W R947 0 22 2W R948 0 22 2W R946 0 22 2W C950 0 1 ML C952 0 1 ML R958 4 7 C951 0 1 ML C953 0 1 ML R959 4 7 C933 0 0...

Page 27: ...330BSB C911 47 50 C912 47 50 ZD903 DZ6 2BSA R905 47K C913 100 35 R907 12K R968 4 7K C967 47 50 R969 4 7 CNP971 R963 6 8 R961 6 8 R962 6 8 R960 6 8 C961 0 022 C959 0 022 C957 0 022 C955 0 022 C960 0 022 C958 0 022 C956 0 022 C954 0 022 L920 L921 D806 DS1SS133 C906 0 1 ML C905 0 1 ML R906 10 Q901 KTA1274 Y R904 2 2K C910 220 50 D904 DS1N404S D902 DS1N404S D903 DS1N404S D905 DS1N404S C908 100 50 D906...

Page 28: ...pp IC CD CLK CD DO CLK DI DO AVSS TUN SM DSA_ACK 20 dB DRF XT2 2 3 6 7 8 9 10 11 12 13 14 15 16 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 47 48 49 M12 V B B B 2 4 1 8 7 3 5 6 2 4 1 8 7 3 5 6 DISPLAY PWB B1 R786 10K R788 6 8K CNS702 R770 10K R772 10K C7 1 5 C706 47 50 R718 1K R719 1K R720 1K R721 1K R724 1K R726 2 2K R727 2 2K R728 2 2K R729 1K R730 1K R732 1K R733 1K R734 1...

Page 29: ...4 3 7 2 6 8 9 1 5 4 3 7 2 6 28 1 CNP701 TO MAIN PWB P25 12 D TO POWER PWB P26 6 G FFC701 CNP803 2 1 3 R774 10K CNS701 RD30 5 6K RD16 3 9K SW717 VOLUME UP SW718 VOLUME DOWN RD17 180K SW714 DIMMER SW715 X BASS SW716 EQUALIZER RD15 1 8K C702 220 10 C703 0 022 C701 1 50 R781 47K C715 0 01 R765 4 7K BI803 CNS803 R718 1K R719 1K R720 1K R721 1K R724 1K R726 2 2K R727 2 2K R728 2 2K LED701 SLR342VCJ D711...

Page 30: ...32MHz CT25 22P CH CT23 22P CH CT21 47 16 ICT21 LC72723M RDS DECORDER CT27 0 022 LT22 2 2µH R372 1K IC302 LC72131 PLL TUNER R370 1K C364 2 2 50 IC303 LA1832S FM IF DET FM MPX AM IF R365 10K C345 0 022 S0302 FM ANTENNA TERMINAL Q301 2SC380 O C321 100 16 R387 5 6K C370 1 50 R393 1K R376 1K R355 3 3K R359 1 8K D304 DS1SS133 D303 DS1SS133 C301 0 01 C384 0 001 FE301 FM FRONT END C369 27P C374 0 018 ZD35...

Page 31: ... 2 1 V 2 1 V 1 6 V 4 9 V 3 0 V 1 6 V 0 V 0 V 4 9 V 4 9 V 1 6 V 2 1 V 2 1 V 0 V 0 V 0 V 0 V 0 V 0 V 0 V 0 V 4 2 V 0 V 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 03 V 5 00 V 5 01 V 5 01 V 5 03 V 5 01 V 5 01 V 5 01 V 5 01 V 5 01 V 5 01 V 5 01 V 5 01 V 5 03 V 5 01 V ...

Page 32: ...itor without such a symbol is microfarad As to electrolytic 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 SW716 EQUALIZER ON OFF SW717 VOLUME UP ON OFF...

Page 33: ... 07 09 51 15 500 ms 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 M...

Page 34: ...e objective lens of the optical pickup is dirty this section may not 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 ...

Page 35: ...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 dio...

Page 36: ...tivated 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 canno...

Page 37: ... off 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 norma...

Page 38: ...General purpose 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 outp...

Page 39: ... 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 output ...

Page 40: ...VDD RCH0 RVSS LVSS LCHO 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 S...

Page 41: ...R SIGNAL METER INPUT 28 ANI5 SPEANA2 Input SPEANA DATA INPUT 16 kHz 29 ANI4 SPEANA1 Input SPEANA DATA INPUT 1 kHz 30 ANI3 SPEANA0 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 POWER FAILURE DETECT 37 P02 JOG 1 GND 38 P01 JOG 0 GND 39 INTP0 REMOCON Input REMOCON INPUT 40 VSS VSS GR...

Page 42: ...S CLOCK 66 FIP33 RDS READY Input RDS READY 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 DESTINATION INPUT FIP30 P20 Output FL DISPLAY DRIVER 70 P100 DIST0 Input DESTINATION INPUT FIP29 P19 Output FL DISPLAY DRIVER 71 78 FIP28 FIP21 P18 P11 Output FL DISPLAY DRIVER 79 VLOAD VLOAD...

Page 43: ... RVref 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 44: ...8 B9 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 ...

Page 45: ... FOR U K ONLY If any one of the bands shown in Fig 52 is removed for some reason be sure replace it to the original position and same appearance as before Figure 52 AC Power Supply Cord Nylon Band 80mm 92LNBAND1318A Power Transformer Transformer PWB Brown Blue Bushing ...

Page 46: ... 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 type VRN Metal film type VR MF Cylindrical type without lead wire ...

Page 47: ... ZD2 VHEDZ3R9BSB 1 J AC Zener 3 9V DZ3 9BSB ZD351 VHEDZ5R1BSB 1 J AC Zener 5 1V DZ5 1BSB ZD561 VHEDZ6R2BSB 1 J AC Zener 6 2V DZ6 2BSB ZD901 VHEDZ330BSD 1 J AC Zener 33V DZ330BSB ZD902 VHEDZ110BSB 1 J AB Zener 11V DZ110BSB ZD903 VHEDZ6R2BSA 1 J AB Zener 6 2V DZ6 2BSA ZD904 VHEDZ130BSB 1 J AB Zener 13V DZ130BSB ZD905 VHEDZ2R4BSB 1 J AB Zener 2 4V DZ2 4BSB ZDT21 VHEDZ5R1BSB 1 J AC Zener 5 1V DZ5 1BSB...

Page 48: ...rolytic C567 568 VCTYMN1CX682K J AA 0 0068 µF 16V C569 VCEAZA1HW225M J AB 2 2 µF 50V Electrolytic C570 572 VCTYMN1EF223Z J AA 0 022 µF 25V C573 VCKZPA1HF223Z J AA 0 022 µF 50V C601 VCEAZA1CW227M J AC 220 µF 16V Electrolytic C603 VCEAZA1HW226M J AB 22 µF 50V Electrolytic C605 606 VCFYDA1HA154J J AB 0 15 µF 50V Polyester C607 608 VCFYHA1HA104J J AB 0 1 µF 50V Thin Film C609 610 VCEAZA1HW105M J AB 1 ...

Page 49: ...W R359 VRD MN2BD182J J AA 1 8 kohms 1 8W R360 VRD MN2BD472J J AA 4 7 kohms 1 8W R361 362 VRD MN2BD103J J AA 10 kohm 1 8W R363 364 VRD MN2BD473J J AA 47 kohms 1 8W R365 VRD MN2BD103J J AA 10 kohm 1 8W R369 VRD MN2BD150J J AA 15 ohms 1 8W R370 VRD ST2CD102J J AA 1 kohm 1 6W R372 374 VRD MN2BD102J J AA 1 kohm 1 8W R376 VRD MN2BD102J J AA 1 kohm 1 8W R377 VRD MN2BD473J J AA 47 kohms 1 8W R378 VRD MN2B...

Page 50: ...J AA 5 6 kohms 1 8W RT21 VRD MN2BD103J J AA 10 kohm 1 8W RT22 23 VRD ST2EE391J J AA 390 ohms 1 4W RT24 VRD MN2BD563J J AA 56 kohms 1 8W RT25 VRD MN2BD103J J AA 10 kohm 1 8W RT26 VRD MN2BD563J J AA 56 kohms 1 8W RT27 30 VRD MN2BD102J J AA 1 kohm 1 8W OTHER CIRCUITRY PARTS BI4 CNS4 QCNWN1572AWZZ J AF Connector Ass y 6 6Pin BI601 CNS601 QCNWN1842AWZZ J AG Connector Ass y 6 6Pin BI701 CNS8 QCNWN1843AW...

Page 51: ...CD BA2600H 202 1 Side Panel Left Not Replacement Item 202 2 PCUSG0022AWZZ J AB Cushion Leg 203 92LCAB3561CASY J Side Panel Ass y Right For CD BA250H 203 92LCAB3565CASY J Side Panel Ass y Right For CD BA2600H 203 1 Side Panel Right Not Replacement Item 203 2 PCUSG0022AWZZ J AB Cushion Leg 204 GCAB 1194AWSA J AP Cabinet Top For CD BA250H 204 GCAB 1194AWSB J AP Cabinet Top For CD BA2600H 206 GCOVA134...

Page 52: ...00H Only 13 SPAKA0300AWZZ J AM Packing Add 14 SPAKZ0771AWZZ J AF Bottom Pad 15 SPAKZ0773AWZZ J Top Pad 16 SPAKP0013AWZZ J AC Polyethylene Bag Unit 17 92LBAG1770A J AB Polyethylene Bag AC Power Supply Cord 18 RRMCG0264AWSA J AQ Remote Control 18 1 GFTAB1022AWSB J AK Battery Lid Remote Control P W B ASSEMBLY Not Replacement Item PWB A1 3 92LPWB3562MANS J Main Power Transformer Combined Ass y PWB B1 ...

Page 53: ...CD BA250H CD BA2600H A B C D E F G H 1 2 3 4 5 6 Figure 7 CD MECHANISM EXPLODED VIEW 7 CD BA250H CD BA2600H 306 1 701 304 701 302 301 702 303 M1 703x2 305x2 SW4 M2 305 PWB F 306 2 306 3 306 704 ...

Page 54: ...01 6 201 7 201 5 201 2 201 17 219 x 2 201 3 201 18 213 230 212 222 203 203 2 203 1 224 x 8 PWB A3 PT801 PWB A2 610 x 12 610 x 2 610 605 x 2 611 x 2 602 x 3 IC904 IC902 IC903 IC901 601 x 1 608 604 x 2 616 x 2 262 616 x 2 613 x 2 608x1 606 x 12 608 x 5 201 24 201 21 201 22 201 13 201 19 201 11 201 21 201 23 201 22 201 15 610 x 2 Silicon Grease 201 20 220 PWB A1 603 x 2 603 x 1 223 603 x 1 610 610 25...

Page 55: ... H 1 2 3 4 5 6 9 CD BA250H CD BA2600H CD MECHANISM 204 250 228 229 236 254 252 261 232 232 232 x 4 PWB C 232 225 M3 M3 SW3 PWB E PWB E 607 x 2 607 x 2 260 SW2 SW1 247 253 235 251 256 615 241 246 248 245 244 243 x 4 242 239 249 255 234 231 240 237 614 227 233 206 238 257 ...

Page 56: ...apacitor 2 7µF 100V N P C1 2 Capacitor 2 7µF 100V Electrolytic N P SP3 4 TWEETER SP1 2 WOOFER BK BK RD RD SP1 2 WOOFER SP3 4 TWEETER 901 907 904 x 4 902 908 x 4 903 906 x 2 906 x 2 909 x 2 SP3 4 SP1 2 Figure 10 SPEAKER EXPLODED VIEW 10 CP BA250H CP BA2600H ...

Page 57: ...ELLOW COLOR RIGHT LEFT 17 9 10 15 16 13 2 1 14 12 1 A FRONT SPEAKER B FRONT Top Top Top RIGHT LEFT 18 1 2 4 11 5 6 3 7 8 FRONT BACK SIDE BACK SIDE PACKING METHOD CD BA250H FOR U K ONLY CD BA250H CP BA250H 13 Packing Add SPAKA0300AWZZ 14 Bottom Pad SPAKZ0771AWZZ 15 Top Pad SPAKZ0773AWZZ ...

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