Sharp CDBA-180 Service manual

CD-BA180

SER VICE MANUAL

No. S7060CDBA180/

MINI COMPONENT SYSTEM

MODEL CD-BA180

CD-BA180 Mini Component System consisting of CD-BA180 (main unit), CP-BA180 (front speaker) and GBOXS0040AWM1 (rear speaker).

• In the interests of user-safety the set should be restored to its original condition and only parts identical to those specified be used.

This Service Manual is for the CD-BA180, which is a minormodification model of the CD-BA150. This manual, therefore, describes only the different points from the CD-BA150. Please refer to the CD-BA150 service manual (No.S1003CDBA150/) together with this manual.

CD-BA150

OPERATION MANUAL ............................................................... 5

REMOVING AND REINSTALLING THE MAIN PARTS.............. 8

ADJUSTMENT .......................................................................... 11

TROUBLESHOOTING (CD SECTION) .................................... 35

FUNCTION TABLE OF IC ........................................................ 39

Page

CONTENTS

Page

SPECIFICATIONS ............................................................................................................................................................. 2

NAMES OF PARTS ........................................................................................................................................................... 3

DISASSEMBLY.................................................................................................................................................................. 5

CD TEST MODE................................................................................................................................................................. 8

BLOCK DIAGRAM ............................................................................................................................................................. 9

SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD..............................................................................................12

NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 28

TYPES OF TRANSISTOR AND LED................................................................................................................................28

WAVEFORMS OF CD CIRCUIT...................................................................................................................................... 29

VOLTAGE ........................................................................................................................................................................ 30

FL DISPLAY......................................................................................................................................................................31

REPLACEMENT PARTS LIST/EXPLODED VIEW

SHARP CORPORATION

This document has been published to be used for after sales service only. The contents are subject to change without notice.

CD-BA180

FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER TO THE OPERATION MANUAL.

SPECIFICATIONS

● General

Power source: AC 120 V, 60 Hz Power consumption: 105 W Dimensions: Width; 270 mm

Weight: 6.2 kg

Height; 330 mm Depth; 375 mm

● Amplifier section

Output power: RMS; 100 W (50 W + 50 W)

Input terminals: Video/Auxiliary (audio signal); Output terminals: Front speakers; 8 ohms

(10 % T.H.D.)

500 mV/47 kohms Rear speakers; 16 ohms

Headphones; 16-50 ohms (recommended; 32 ohms)

● Compact disc player section

Type: 3-disc multi-play compact Signal readout: Non-contact, 3-beam semi- D/A converter: 1-bit D/A converter

Frequency response: Dynamic range: 90 dB (1 kHz)

disc player conductor laser pickup 20 - 20,000 Hz

● Cassette deck section

Frequency response: 50-14,000 Hz (Normal tape) Signal/noise ratio: 55 dB (TAPE 1, playback)

50 dB (TAPE 2, recording/playback)

Wow and flutter: 0.3 % (WRMS)

CP-BA180

Type: 3-way type [10 cm woofer x 2

and 5 cm tweeter]

Maximum input power: 80 W Rated input power: 40 W Impedance: 8 ohms Dimensions: Width; 231.5 mm

Height; 330 mm Depth; 210 mm

Weight: 3.1 kg/each

GBOXS0040AWM1

Type: 10 cm full-range speaker Maximum input power: 30 W

Rated input power: 15 W Impedance: 16 ohms Dimensions: Width; 170 mm

Height; 170 mm Depth; 88 mm

Weight: 0.5 kg/each

● Tuner section

Frequency range: FM; 87.5-108 MHz

AM; 530-1,720 kHz

Specifications for this model are subject to change without prior notice.

– 2 –

CD-BA180

■ Front panel

1.

Extra Bass Indicator

12.

FM Stereo Mode Indicator

13.

FM Stereo Indicator

14.

(CD) Repeat Indicator

15.

(CD) Pause Indicator

16.

(CD) Play Indicator

17.

Record Indicator

18.

(CD) Disc Number Indicators

19.

(CD/TUNER) Memory Indicator

10.

Sleep Indicator

11.

(TAPE) Play Indicator

12.

Timer Record Indicator

13.

Timer Play Indicator

14.

Spectrum Analyzer/Volume Level Indicator

NAMES OF PARTS

1

23456 11

10 12 13

9

14

CD-BA180

87

15.

(CD) Disc Tray

16.

Memory/Set Button

17.

(CD) Track Down/Review Button (TUNER) Preset Down Button

3

(TAPE 2) Rewind Button

18.

(CD) Track Up/Cue Button (TUNER) Preset Up Button (TAPE 2) Fast Forward Button

19.

(TAPE 2) Record Pause Button

20.

Timer Set Indicator

21.

On/Stand-by Button

22.

Clock Button

23.

Timer/Sleep Button

24.

Function Selector Buttons

25.

Headphone Socket

26.

Tuning and Time Up/Down Buttons

27.

(CD/TAPE) Stop Button

28.

Dimmer Button

29.

Volume Up/Down Buttons

30.

Equalizer Mode Selector Button

31.

Extra Bass/Demo Mode Button

32.

(CD) Open/Close Button

33.

(CD) Disc Skip Button

34.

(CD) Play/Repeat Button (TAPE) Play Button

35.

(TAPE 1) Cassette Compartment

36.

(TAPE 2) Cassette Compartment

20 21

22 23

24 25

26 27

14

17 181615

35 36

14

19

28 29

30 31

32 33

34

– 3 –

CD-BA180

■ Rear panel

11.

AC Power Input Socket

12.

FM/AM Loop Aerial Socket

13.

Video/Auxiliary (Audio Signal) Input Sockets

14.

Front Speaker Terminals

15.

Rear Speaker Terminals

2 3 4

1

5

■ Remote control

11.

Remote Control Transmitter LED

● CD control section

12.

Disc Number Select Buttons

13.

Memory Button

14.

Pause Button

15.

Clear Button

16.

Track Down/Review Button

17.

Track Up/Cue Button

18.

Disc Skip Button

19.

Play/Repeat Button

10.

Stop Button

11.

Random Button

● Tuner control section

12.

Preset Up/Down Buttons

● Tape control section

13.

(TAPE 1) Play Button

14.

(TAPE 2) Record Pause Button

15.

(TAPE 1/2) Stop Button

16.

(TAPE 2) Play Button

17.

(TAPE 2) Rewind Button

18.

(TAPE 2) Fast Forward Button

● Common section

19.

Equalizer Mode Selector Button

20.

Function Selector Buttons

21.

On/Stand-by Button

22.

Extra Bass Button

23.

Volume Up/Down Buttons

1

2 3

4 5 6 7

13 14 15 16 17 18

19 20

21 22

8

9 10

11 12

23

CP-BA180

11.

Tweeter

12.

Bass Reflex Duct

13.

Woofers

14.

Speaker Wire

GBOXS0040AWM1

11.

Full-Range Speaker

12.

Speaker Wire

1

3

2

4

1

2

– 4 –

(B1)x4 ø3x12mm

(B1)x2 ø3x10mm

Rear Panel

(B1)x2 ø3x10mm

Side Panel (Right)

Side Panel (Left)

(A1)x2 ø3x12mm

Top Cabinet

(D1)x3 ø3x10mm

(C3)x1

(C1)x1 ø3x12mm

(D1)x4 ø3x12mm

CD Player Unit

CD Tray Cover

Rear Panel

Pull

(C3) x1

(C2) x3

1

2

Main PWB

(C4)x2

CD Servo PWB

Lock Lever

CD Player Unit (Bottom View)

DISASSEMBLY

Caution on Disassembly

Follow the below-mentioned notes when disassembling the unit and reassembling it, to keep it safe and ensure excellent performance:

1. Take cassette tape and compact disc out of 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 servicing.

CD-BA180

STEP REMOVAL PROCEDURE FIGURE

1 Top Cabinet 1. Screw ..................... (A1) x4 5-1

2 Side Panel 1. Screw ..................... (B1) x8 5-1

(Left/right)

3 CD Player Unit/ 1. Turn on the power supply, 5-2

CD Tray Cover

4 Main PWB/ 1. Screw .....................

Rear Panel 2. Socket .................... (D2) x4 6-2

5 Front Panel 1. Screw ..................... (E1) x2 6-2

6 Display PWB 1. Screw .....................

7 Tape Mechanism 1. Open the cassette holder. 6-3

8

Headphones PWB

9 Turntable 1. Hook....................... (J1) x2 6-4

10 Disc Tray 1.

11 CD Servo PWB 1. Screw ..................... (L1) x1 6-6

12 CD Mechanism 1. Hook....................... (M1) x2 7-1

13

Note 1: How to open the changer manually. (Fig. 5-3)

1. In this state, turn fully the lock lever in the arrow direction through the hole on the loading chassis bottom.

2.

While holding the lock lever, rotate the cam gear anticlockwise until the

cam gear rib engages with the clamp lever.

3. After that, push forward the CD slide holder.

Note 2:

1. After removing the connector for the optical pickup from the

connector, wrap the conductive aluminium foil around the front end of the connector so as to protect the optical pickup from electrostatic damage.

(Note 2) 2. Hook....................... (L2) x2

Loading Motor PWB

open the disc tray, take out the CD cover, and close. (Note 1)

2. Screw ..................... (C1) x1

3. Hook....................... (C2) x3

4. Hook....................... (C3) x2

5. Socket .................... (C4) x2

(D1) x10

3. Flat Cable .............. (D3) x1

4. Lug Wire................. (D4) x1

5. Flat Wire................. (D5) x1

2. Hook....................... (E2) x2

(F1) x15

2. Flat Cable .............. (F2) x1

2. Screw ..................... (G1) x6

1. Screw ..................... (H1) x1 6-3

2. Cover ..................... (J2) x1

Turn fully the lock lever in the

arrow direction.

2.

While holding the lock lever,rotate the cam gear until the cam gear rib engages with the clamp lever.

3.

Push the slide holder backward to

engage the claw with the groove and remove it in the direction

of the arrow. ..............

3. Socket .................... (L3) x4

2. Hook....................... (M2) x3

1. Hook....................... (N1) x5 7-1

(K1) x6

(Fig. 6-1)

5-2,6-2

6-3

5-3

6-1

6-5

CD-BA180

Figure 5-1

Figure 5-2

Figure 5-3

Note 3:

1. Be careful not to break the claw of the CD mechanism.

2. When fining back the cam gear assembly, let it lock by front movement.

– 5 –

CD-BA180

Turntable

Disc Tray

(J2) x1

CD Player Unit

(J1) x2

Clamp Lever

CD Player Unit (Top View)

Cam Gear Rib

Figure 6-1

(D1)x2 ø3x10mm

(D3)x1

(D2)x1

(D4)x1

(D1)x1 ø3x10mm

(E2)x1

(D2)x3

Figure 6-2

(F2)x1

(E1)x2 ø3x10mm

Display PWB

(D5)x1

Headphones PWB

Main PWB

(E2)x1

Figure 6-4

Disc Tray

(K1) x3

3

2

1

(K1) x3

Figure 6-5

(L1) x1

(L3) x2

CD Servo

PWB

CD Player

Chassis

(F1)x15 ø3x10mm

Tape Mechanism

(G1)x6 ø3x10mm

(H1)x1 ø3x10mm

Figure 6-3

Open

Cassette Holder

Headphones PWB

(L2) x2

(L3) x2

Figure 6-6

– 6 –

CD-BA180

CD Mechanism

(M1) x1

(M2) x3

(M1) x1

Figure 7-1

Loading Motor PWB

(N1) x5

CP-BA180

STEP

REMOVAL PROCEDURE FIGURE

1 Woofer 1. Front Panel ............ (A1) x1 7-2

2. Screw ..................... (A2) x8 7-3

2 Tweeter 1. Screw ..................... (B1) x2 7-3

(A1) x1

Driver should be pried away from speaker box.

Screwdriver

Speaker Box

(A2)x4 ø4x12mm

Woofer

(B1)x2 ø3x10mm

Speaker Box

Tweeter

Figure 7-2

Figure 7-3

– 7 –

CD-BA180

TEST MODE

· Setting the test mode

Any one of test mode can be set by pressing several keys as fallows. <X-BASS> + <CD> + <POWER> TEST:CD operation test

Function:-CD test mode.

-Enter test mode.

C D T E S T

OPEN/CLOSE operation is using manual.

<< >>, << >> buttons make pick's slide possible.

IL isn't done

<<PLAY>> key input.

Do TOC IL. Do normal play When these following key is input into PLAY key, track number can be appoint directly

<< 1>> key: Track 4 <<

2>> key: Track 9 3>> key: Track 15

<<

<<STOP>> key input.

STOP

VOL — Last memory BAL — CENTER P.GEQ — FLAT X-BASS — OFF

<<MEMORY>> key input.

Laser ON.

<<MEMORY>> key input.

Tracking OFF play at that specific point.

<<MEMORY>> key input.

Tracking ON play at that specific point.

<<STOP>> key input.

STOP

Sliding the PICKUP with <<

>>, << >> button

must only be in STOP mode.

To cancel : Power OFF

– 8 –

CNP12

CNP11

Q2

+3.3V

+5V

CONT5

CONT2

CONT3

CONT4

CONT7

CONT6

SLD0

SPD0

FD0 TD0

+5V

TO DISPLAY SECTION

CLAMP SW

CDINT

WRQ

CE

DO

CLK

DI

CD RES

GND

DRF

CNS4

BI4

CNP4

M2

SLED

MOTOR

M1

SPINDLE

MOTOR

M

TRACKING COIL

FOCUS COIL

PICKUP UNIT

TE

FE

RFEV

HFL

VVDD

ADAVDD

VDD

LVDD

RVDD

XVDD

VDD5V

RFEV

FE-

FE

TE-

TE

HFL

+3.3V

CONSTANT

VOLTAGE

+5V

Q1

Q3

LASER

DRIVER

LDD

PD

VCC3

VCC2

VCC4

VCC1

TIN2

TIN1

FIN2

FIN1

IC3

M63001FP FOCUS/TRACKING/ SPIN/SLED DRIVER

IC1

LA9235M

SERVO AMP.

TO MAIN SECTION

(TO IC401)

R-CH

L-CH

AGND

DGND

+B3(+5V)

RCHO

RVSS

LVSS

LCHO

IC2

LC78641E

SERVO/SIGNAL

CONTROL

-

+

M

SW1

OPEN/

CLOSE

XL1

16.9344MHz

6

5

43

3

2

5

4

1

12

34

7

8

217

89

10

12

4

3

5

SW2

CLAMP

SW3 DISC

NUMBER

M3 T/T

UP/DOWN

MOTOR

6

12

4

3

56

12

4

3

56

75

76

45 46

47 48 32 31

30 65 66 67 68 69 70 71 72

CE CL

DI

DO

INT

WRQ

RES

DEF

52

51

XOUT

XIN

73

5

183644 49 50 7 14 15 16

23

24

25

26

33

3

13

19

40

64

74

17

18 19 20

21

22

30

23 11

9

1

45671516 26 27

2 1725 4142 3839

35

29 22 21 14

8

40

18

24 23 28

SW4

PICKUP IN

+3.3V

CD-BA180

Figure 9 BLOCK DIAGRAM (1/3)

– 9 –

CD-BA180

FM

AM

CNP301

P.B. HEAD

TAPE 1

REC/P.B. HEAD

TAPE 2

1 2 3

TAPE MOTOR

SOLENOID

T2 PLAY

T1 PLAY

R. PLAY

F. PLAY

FROM

CD SECTION

CNP11

L-CH

R-CH

P.B. L-CH R-CH

ERASE

HEAD

BF301

REC

AC BIAS

1

FM RF

AM TRACKING

T303

MOTOR

DRIVER

Q604

M

Q605 Q606

IC701 54PIN

IC701 53PIN

IC701 56PIN

IC701 55PIN

CNS402

1 2 3 4 5

SWITCHING

Q104~ Q107

IC301

TA7358AP

FM FRONT END

2

3

5

4

L312

T306

+B5

POP REDUCE

L REC

R REC

SWITCHING

Q108 Q109

BIAS

Q114 L104

OSC

FM IF

6

8

7

FM

OSC

T301

OSC BUFF

FM+B

IC101

AN7345K

P.B

Q103

SWITCHING

FM OSC

VT

SWITCHING

H/N

T1/T2

19

Q102

Q302

AM BAND

COVERAGE

PLAYBACK AND RECORD

/PLAYBACK AMP.

L(T1)

1

R(T1)

24 2

L(T2)

23

R(T2) L NF

3 22

R NF

T1/T2

6

REC

9

16

REF

14

NOR/

12

HIGH

15

SWITCHING

+B2

Q101

SWITCHING

+B2

Q360

13

4

21

5 20

7

18

8

17

10

Q112 L103

CF303T302

L R

L NF R NF

ALC

+B2

20

L REC R

14

OSC

FM

VIDEO/AUX

+B2

PB

2

1

MIX

AM

FM/AM IF MPX.

23

AM OSC IN

X352

4.5MHz

22

7

SO401

L R

BIAS

Q113

CF352T351

AM IF

IC303

LA1832S

21

AM RF IN

15

16

IC302

LC72131

PLL(TUNER)

FM/AM

9

L

AUX

R L

TAPE

R

L

TUNER

R

L

CD

R

4

5

VCC

AM IF

GND

FM/AM

OUT

18

7

STEREO

DI

CE

3 4 5

11

MO/ST

10

21

9

16 10

15

AUDIO PROCESSOR

11 14

12 13

L

7

8

17

CF351

899

FM

DET

MPXIN

16

DO

CL

6

VCC

IC401

LC75341

R

18

17

MO/ST

VCO

FM/AM

17

+B2

23

3

Q110 Q111

MUTING

X351

456kHz

13

L R

12

+B2

ZD351

14 15

DI

1

CE

2

CL

24

REC/PLAY

T1/T2

BIAS

Q401 Q402

R

21

L

4

SYSTEM MUTE

Figure 10 BLOCK DIAGRAM (2/3)

– 10 –

CD-BA180

401 402

+B2

SYSTEM MUTE

SP. DET.

+B3

Q601~ Q603

2 31

63

~

78

VLOAD

79 80

~

85 90

~

92 93

~

100

VDD

1

+B4

Q901 Q902 Q903 Q904

IC901

STK402040

POWER AMP.

-B2

+B5

8

~

13

FL701

FL DISPLAY

~

14

16

-B2

4 4

IC702

KIA4558P

8

+B5

~

44

28

29

+B4

48 49

47

OPE.AMP

7

1

REMOTE SENSOR

RX701

IC703 KIA4558P OPE.AMP

1

1 2 3

+B4

VDD

4042434445 41474849 4652535455 51575859 56 50

39 38 37 36 35

DO

+B4

34 33

~

31

30 29

28

KEY SW601~SW603 SW609~SW623 SW625~SW628

RL951

+B5

SECTION

Q971

JK951

HEADPHONES

TO CD

+B3

M901

M

FAN

MOTOR

SO901

FRONT SPEAKER

REAR SPEAKER

AVDD

22 23232421

+B4

~

1710 16

20

RESET IC

IC704

SYS. STOP

CEDICL

1

IC701

IX0328AW

SYSTEM

MICROCOMPUTER

RESET

~

7

4

566

9

Q609

12 13

11

XL701

4.1943MHz

VDD

15

+B4

3

2

L

1

R

15

-Vcc

+Vcc

9

8

–B1

+B1

R-OUT

7

11

L-OUT

13

F801

4A/125V

D801

Y

2

-B2

+B5

+B2

+B3

+B4

-15V

M10V

A10V

+5V

UNSWITCH

+5V

CONSTANT VOLTAGE

Q831

IC841

VOLTAGE REGULATOR

IC851

IC852

VOLTAGE REGULATOR

D802~D805

F802

4A/125V

F803

2A/250V

T.F.

PT801

POWER TRANSFORMER

AC POWER

SUPPLY CORD

AC 120V, 60Hz

Figure 11 BLOCK DIAGRAM (3/3)

– 11 –

CD-BA180

42

41

40 39 38 37 36

LOADING M-

VCC4

LD_M+ LD_M-

LOADING M+

35 34 33

32

31 30 29 28 27 26 25 24 23 22

SPDO

VCC3

VCC2(SPN)

SP-

SP+

SPO

GND

+B

EFBL

A

PH(R

TDO

FDO

NC

TEST

HFL

TE

TE-

FE

FE-

RFEV

BH

PH

RF

RF-

RFSW

VCC

30

29

28

27 26 25 24 23 22 21

20 19 18 17 16

REF

ODRV

AGCON

ODRV

REF

AGCON

ODRV

APC

LPF

DH

PH

LPF

PH/BH

LDON

EFBL

FIN1

FIN2

REF1

TIN2

TIN1

AGON

LDD

TEST0

GND

VREF

TES1

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

FIN2

FIN1

TIN2

TIN1

+B

2

5

3

1

7 6

4

4 3 2

1

7 6 5

CD SERVO PWB-B

5

1

3

7 6

4

2

4 3 2

1

7 6 5

Vcc

C

Vref

F

B

E A

LD

VR

PD

GND

FO-

FO+

TR+

TR-

5

2

1 2 3 4 5 6 7 8

8

3

6 7

1

4

TRTR+

FO+ FOGND

PD VR LD

ACTUATOR

FO+

FOTR-

TR+

1 2 3 4 5 6 7 88

3

6 7

1

4 5

2

PICKUP UNIT

GND(D)

PUIN

SP+

SP-

SL+ SL-

3 2

5

1

4

6

2

3

5

1

4

6

3

6

1

4

5

2

3

5

1

4

6

CD MOTOR PWB-C

21

20

19

18

17

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

SLDO

FDO

TDO

MUTE

Vref

STANDBY

VCC1

SL-

SL+

GND

TR+

TR-

FO-

FO+

FO

FD

TO

+B

+

-

+

+B

+

-

+

M M

+

R54 68K

R53 68K

R52 68K

R51 68K

CNP1

R56 68K

R55 68K

C6 100/6.3

C54

47/10

C55

0.01

C51

47/10

C53

0.001 R25

10K

C7 10/35

C8

0.022

R47

3.3

Q3

KTA1266 GR

LASER DRIVER

R50

47

C14

0.33

C13

0.01

R42

120K

R3

47K

R4

10K

C11

4.7/6.3

R6 27K

R7

6.8K R5

39K

C12

0.022

C18

3P

(CH)

R8

330

R10 27K

C26

0.047

C22

100P

R80

1M

R79

1.5M

C24

2.2/50 C21

0.1

C23

0.047

R12

680

R

1.

R11 12K

R1 68

C

0.

C27

0.1

C17

0.0047

R15 10K

C20

0.1

C42 68P

C25

0.022

C41

100/6.3

C28

47/10

C82

0.022

R44

1K

C

0.

C47

100/6.3

C49

100/6.3

C50

100/6.3

C46

0.022

IC3

M63001FP

FOCUS/TRACKING/

SPIN/SLED DRIVER

R48

6.8K

R96

1.5K

C52

0.01

CNP2

CNP3

CNS3A

CNS3B

M1

SPINDLE

MOTOR

M2

SLED

MOTOR

SW4

PICKUP IN

IC1

LA9235M

SERVO AMP.

CNS1A

CNS1B

CNS2A

CNS2B

CNP3A

13

2

5

8

4

A

B

C

D

E

F

G

H

• NOTES ON SCHEMATIC DIAGRAM can be found on page 28.

– 12 –

1

23456

Figure 12 SCHEMATIC DIAGRAM (1/10)

CD-BA180

+B

42 41 40 39 38

37 36 35

34 33 32

31

30

29

28

27

26

25

24

23

22

C17

0.0047

13

LD_M+ LD_MVCC4 LOADING M+ LOADING M-

GND

VCC3 SP-

SP+

SPDO

SPO

VCC2(SPN)

C20

0.1

C82

0.022

C25

R10 27K

100/6.3

0.022

R8

330

C42 68P

C47

C41

100/6.3

+B

C23

0.047

C24

2.2/50

C22

100P

R15 10K

CD SIGNAL

R94 10K

R95

JITER

DEFECT

CONTROL

A/DSW

R39

470

+B

EFMO

80

D/A

SLDO

KRC102 M

79 78

AUTO

ADJUST

27

FG(D_Vref)

+B

R22

470

DS1SS133

Q2

10K

FSEQ

FRAME SYNC DEFECT,PROTECT EFM DECODE

CLV CONTROL

SW

LASER

28

D22

1

8

7

R12 680

PD01

R13 680

C81

0.022 PCKIST

R14

1.2K SLCIST

EFMIN

0.1

PH(RFENV)

ADAVDD C29

0.022 ADAVSS

PHREF BHREF

R44

1K

R35

TDO

FDO

PD02

VVSS

VVDD

HFL

SLCO

JITTV JITTC

VREF

TBLO

TDO FDO

1K

1

2 3

PLL VCEC

4 5

FR

6 7 8

SLICE LEVEL

9

CONTROL

10 11 12

BH

13 14

FE

15

TE

16 17 18

+

-

19 20 21

S/H

22 23 24

26

25

SPDO

1

R38

270

SLDO

SPDO

6

R21

470

D21

DS1SS133

R79

1.5M

C21

0.1

R11 12K

R80 1M

C27

C26

0.047

C28

47/10

2

EFBL

DISC_NO

CONT7

V/vP

77

76

GENERAL

PROCESSEROR

CONT2

CONT1

30

29

R40 1.2K

32

O/C

R67 1K

R68 1K

CONT6

VSS

74

75

SERVO

GENERAL

CONT4

CONT3

32

31

R46 1K

R45 1.2K

C71 100P C72 0.01 C73 100P C74 100P C75 100P C76 100P C77 100P C78 100P

+B

C80

0.022 VDD5V

73

SERVO/SIGNAL

CORRECT

CONT5

33

35

34

PCK

R17 1K

+B

R16 10K

+B

DEF

RES

72

71

IC2

LC78641E CONTROL

ERROR

AUDIO

OUT

37

36

VDD

C2F

DOUT

100/6.3

INT

WRQ

70

69

INTERPOLATION

MUTE

ATTENUATION

DEEMPHASIS

FSX

39

38

C30

0.022

C31

SERIAL

EXTERNAL

DIGITAL

1BIT

68

COMMAND INTERFACE

OUT

AUDIO IN

FILTER

DAC

EFLG

40

67

SUBCODE DECODE CRC

TEST

CLDIDO

66

CLOCK

GENERATOR

9

R71 1K R72 1K R73 1K R74 1K R75 1K R76 1K R77 1K R78 1K

CE

65

LPF

+B

64 63 62 61 60 59 58 57 56 55 54 53 52

51 50 49 48 47 46 45 44 43 42 41

L62

2.2µH

SBCK

PW SBSY SFSY 16M DATA DATACK LRSY

ASDFIN ASDACK ASLRCK XVSS

XOUT

XIN XVDD RVDD RCHO RVSS LVSS

LCHO LVDD

MUTER MUTEL EMPH

L61

0.82µH

16.9344MHz

R20

220

+B

R82

2.2K

C38

10/16

C39

+B

10/16

47

R19

+B

CONSTANT VOLTAGE

Q1

2SC3203 Y

+B

ZD61

DZ3.9BSB

R81

2.2K

0.022

100/6.3

C34

0.022

12 11

10

X1

C44

C45

C56

330/6.3

C40

0.0015 C43

0.0015

DRF RES WRQ INT DO DI CL CE

+B

R-CH

1

AGND

10K

R84

10K

R83

C83

0.022

+B

220

R58

C64

47/6.3

+B

O/C

GND(D)

DISC_NO

M+

M-

CNP4

2 3 4

5

1

2

3

4

5

6

7

8

9 10

1

2 3 4 5665

P14 1 - B

TO MAIN PWB

CDINT WRQ DRF CE DO DI CLK CD RES CLAMP SW

GND

BI4

1 2 3 4

6

CNS402

P21 12 - B

CNS701

TO DISPLAY PWB

SW1

OPEN/

CLOSE

SW2

CLAMP

SW3 DISC

NUMBER

+

M3

M

T/T

-

UP/DOWN LOADING

L-CH

DGND

+5V

+B

CNP11

+B

INT WRQ DRF CE DO DI CL RES

CNP12

CNS4

1 2 3 4 5

CD LOADING MOTOR PWB-E

3

• The numbers 1 to 13 are waveform numbers shown in page 29.

7

8 9 10 11 12

Figure 13 SCHEMATIC DIAGRAM (2/10)

– 13 –

CD-BA180

A

CNS402

P13 12 - D

CNP11

TO CD SERVO

B

PWB

C

SECTION

1 2 3 4 5

TO

POWER P16 1 - F

BI402

R-CH

1

A_GND

2

L-CH

3

CD_GND

4

+5v

5

L

q

GND (A_GND)

t

R

r

+5V

j

GND (CD_GND)

s

+B

Q401,Q402 : SYSTEM MUTE

R401

330

R402

330

R403

2.7K

R404

2.7K

KTC3199 GR

C401

Q402

KTC3199 GR

R410

10K

R409

Q401

0.001

10K

R407

2.2K

C402

0.001 R408

2.2K

C403 22/25

R425

22K

C405

0.022

R415

3.9K

C404

100/16

0.1(ML)

R417

3.3K

C409

C407

10/50

C411 0.1(ML)

C413 0.0027

C417 1/50 C419 4.7/50 C421 1/50 C423 1/50

C425 1/50

C427 1/50

DI

1

CE

2

VSS

3

LOUT

4

LBASS

5

LTRE

6

LIN

7

LSEL0

8

L4

9

L3

10

L2

11

L1

12

AUDIO PROCESSOR

CCB

INTERFACE

-

+

-

+

AUX

DECK

TUN

CD

IC401

LC75341

+

+B+B

CLK

24

+B

VDD

+

-

+

-

+

23

C406 22/50

VREF

22

C408 10/50

ROUT

C410

21

RBASS

RTRE

RSEL0

20 19

RIN

18

17

R4

16

R3

15

R2

14

R1

13

0.1(ML)

C412 0.1(ML)

C414 0.0027 C418 1/50 C420 4.7/50 C422 1/50 C424 1/50 C426 1/50 C428 1/50

-

+

R418

3.3K

R

D

PLAYBACK SIGNAL

FM SIGNAL

+B

RECORD SIGNAL CD SIGNAL VIDEO SIGNAL

R157

150

Q102

KRC104 M

R101

10K

8.6V

Q104

0.7V

Q101

R106

2.2K

R108

3.3K

R109

3.3K

R107

2.2K

R102

10K

R103

4.7K

R112

R111

0V

R113

4.7K

47K

0V

2

0V

R105

R110

47K

0V

2

1K

1

0V 0V

1

KRC104 M

R137

15K

R104

1K

0V

Q109

KTC3199 GR

3.4V

3

3.4V

3

Q103

C106

0.001

Q108

KTC3199 GR

C107

0.001

C112 330P

C113 330P

C108

R115

100/16

R114

1K

24

1

1K

R

L

C116

100/10

C118

0.033

C114 330P

23

2

C115 330P

C117

100/10

R117

56 R138

15K

R116

56

22

3

100K

R118

112K

-

+ Hich=T1

+

-

112K

100K

R119

C119

0.033

C120 560P

R121

C121

R120

21

3.9K

560P

3.9K

4

R124

33K

C122

C123 47/25

R125

33K

C144

0.0022

R122

47/25

22

5

C137

0.022

CHASSIS

C102

0.001

C103

0.001

C104 180P

C105 180P

9.3V

KTA1266 GR

2SC1845 F

0V

Q106

2SC1845 F

Q107

2SC1845 F

0V

Q105

2SC1845 F

E

MECHANISM

CHASSIS

EARTH

R-CH

L-CH

TAPE 1

PLAYBACK HEAD

F

ERASE

HEAD

R-CH

L-CH

TAPE 2

RECORD/

G

PLAYBACK HEAD

1 2 3

1 2

3 4 5 6 7

T1_R

A_GND

T1_L

M_GND

ERASE

T2_R2

A_GND

T2_R1

T2_L1 T2_L2

1 2 3

1 2

3 4 5 6 7

CNP101

CNP102

5.6K

R123

5.6K

C143

R126 68K

19

IC101

AN7345K

6

C139

3.3/50

0.0022

C150 22/25

MUTING

0V

3.9K

R130

R128 6.8K

18

7

6.8K

R127

3.9K

R129

R142 220K

KTC3199 GR

0.7V

0V

1.5K

R132

270P

C126

C128 22/25

17

+

Hich=CHROME

+

-

8

270P

C127

1.5K

R131

Q110

R134

C130

C129 22/25

R133

C131

R140

10K

100

0.022

C132

56K

100

0.022

C133

R136

0.0033

16

9

0.0033

R141

10K

KTC319

10K

C134

47/25

15

ALC

10

C135 47/25

R135

10K

Q11

1

Nor/CrO2

1

H

• NOTES ON SCHEMATIC DIAGRAM can be found on page 28.

1

23456

Figure 14 SCHEMATIC DIAGRAM (3/10)

– 14 –