Sharp CDC-401-W, CPC-402 Service manual

CD-C401W,CP-C402

SERVICE MANUAL

CD-C401W CP-C402

CD-C401W and CP-C402 constitute CD-C401W.

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

No. S7751CDC401W/

CONTENTS

Page

SAFETY PRECAUTION FOR SERVICE MANUAL .......................................................................................................... 2

VOLTAGE SELECTOR..................................................................................................................................................... 2

AC POWER SUPPLY CORD AND AC PLUG ADAPTOR................................................................................................ 2

SPECIFICATIONS ............................................................................................................................................................ 3

NAMES OF PARTS .......................................................................................................................................................... 4

OPERATION MANUAL..................................................................................................................................................... 6

DISASSEMBLY................................................................................................................................................................. 7

REMOVING AND REINSTALLING THE MAIN PARTS.................................................................................................... 9

ADJUSTMENT................................................................................................................................................................ 10

NOTES ON SCHEMATIC DIAGRAM ............................................................................................................................. 12

TYPE OF TRANSISTER................................................................................................................................................. 12

BLOCK DIAGRAM .......................................................................................................................................................... 13

SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD.............................................................................................16

VOLTAGE ....................................................................................................................................................................... 28

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

TROUBLESHOOTING (CD SECTION) .......................................................................................................................... 30

FUNCTION TABLE OF IC .............................................................................................................................................. 34

DISPLAY PANEL ............................................................................................................................................................ 40

REPLACEMENT PARTS LIST/EXPLODED VIEW

SHARP CORPORATION

– 1 –

CD-C401W,CP-C402

SAFETY PRECAUTION FOR

SERVICE MANUAL

Precaution to be taken when replacing and servicing the Laser Pickup.

The AEL (Accessible Emission Level) of Laser Power Output for this model is specified to be lower than Class I Requirements. However, the following precautions must be observed during servicing to protect your eyes against exposure to the Laser beam.

(1) When the cabinet has been removed, the power is turned

on without a compact disc, and the Pickup is on a position outer than the lead-in position, the Laser will light for several seconds to detect a disc. Do not look into the Pickup Lens.

(2) The Laser Power Output of the Pickup inside the unit and

replacement service parts have already been adjusted prior to shipping.

(3) No adjustment to the Laser Power should be attempted

when replacing or servicing the Pickup.

(4) Under no circumstances look directly into the Pickup Lens

at any time.

(5) CAUTION - Use of controls or adjustments, or performance

of procedures other than those specified herein may result in hazardous 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 LASERSTRALING VED ABNING. SE IKKE IND I STRALEN-HELLER IKKE MED OPTISKE INSTRUMENTER.

VARO! AVATTAESSA OLET ALTTIINA NAKYMATON LASERSATEILYLLE. ALA TUIJOTA SATEESEEN ALAKA KATSO SITA OPTISEN LAITTEEN LAPI.

VARNING-OSYNLIG LASERSTRALNING NAR DENNA DEL AR OPPNAD. STIRRA EJ IN I STRALEN OCH BETRAKTA EJ STRALEN GENOM OPTISKT INSTRUMENT.

ADVERSEL-USYNLIG LASERSTRALING NAR DEKSEL APNES. STIRR IKKE INN I STRALEN ELLER SE DIREKTE MED OPTISKE INSTRUMENTER.

VOLTAGE SELECTION

The voltage selector is located on the AC voltage selector box. If adjustment is necessary, use a screwdriver in order to turn the selector in either direction the correct voltage figure is displayed in the window next to the adjisument screw.

QACCB0004AW00

QACCE0007AW00

92LCoRDZ1652A

92LCoRD577B

92LPLUG027 92LPLUG155A

Figure 2 AC POWER SUPPLY CORD AND AC PLUG ADAPTOR

– 2 –

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

SPECIFICATIONS

CD-C401W

General

Power source: AC 110/127/220/230-240 V,

50/60 Hz

Power consumption: 80 W Dimensions: Width; 270 mm (10-5/8")

Height; 280 mm (11-1/16") Depth; 332.5 mm (13-1/8")

Weight: 4.2 kg (9.2 Ibs.)

CD-C401W,CP-C402

Compact disc player section

Type: 3-disc multi-play compact disc

player

Signal readout: Non-contact, 3-beam semi-

conductor laser pickup

D/A Converter: 1-bit D/A converter Frequency response: 20 - 20,000 Hz Dynamic range: 90 dB (1 kHz)

Amplifier section

Output power: PMPO; 160 W

MPO; 34 W (17 W + 17 W) (10 % T.H.D.) RMS; 20 W (10 W + 10 W) (10 % T.H.D.)

Output terminals: Speakers; 8 ohms

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

Tuner section

Frequency range: FM; 88 - 108 MHz

AM; 531- 1,602 kHz

Cassette deck section

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

playback)

55 dB (TAPE 2, playback)

Wow and flutter: 0.15 % (WRMS)

CP-C402

Speaker section

Type: 10 cm (4") full range speaker Maximum input power: 20 W Impedance: 8 ohms Dimensions: Width; 170 mm (6-11/16")

Height; 280 mm (11") Depth; 151 mm (5-15/16")

Weight: 1.4 kg (3.1 Ibs.)/each

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

– 3 –

CD-C401W,CP-C402

NAMES OF PARTS

CD-C401W

Front Panel

1. Disc Tray

2. CD Play Indicator:

3. Disc Number Indicators

4. FM Stereo Mode Indicator: ST

5. Extra Bass Indicator: X-BASS

6. Memory Indicator

7. CD Pause Indicator:

8. CD Repeat Indicator:

9. FM Stereo Indicator:

10. Function/CD Track/CD Counter/Frequency/Preset Channel/Volume Indicator

11. On/Stand-by Switch

12. Memory Set Button

13. Clock/Timer Button

14. Extra Bass Button: X-BASS

15. Volume Up/Down Buttons:

16. Function Selector Button

17. Band Selector Button

18. Tuning Up/Down Buttons:

19. Track Down/Review/Preset Down Button:

20. Play/Repeat Button:

21. Stop Button:

22. Track Up/Cue/Preset Up Button:

23. Disc Skip Button

24. Open/Close Button:

25. Headphone Socket

1

2

3

123

4

ST

7

8

1112

9

10

13

16

17

18 19 20 21 22 2324 25

26

27

5

X-BASS

14

6

MEMORY

15

26. (TAPE 1) Cassette Compartment

27. (TAPE 2) Cassette Compartment

28. (TAPE 1) Record Button:

29. (TAPE 1) Play Button:

30. (TAPE 1) Rewind Button:

31. (TAPE 1) Fast Forward Button:

32. (TAPE 1) Stop/Eject Button:

33. (TAPE 2) Play Button:

34. (TAPE 2) Stop/Eject Button:

/

2829303132 33 34

– 4 –

8

9

1 2

4

5

3

6 7

CD-C401W

Rear Panel

1. AC Power Input Socket

2. AC Voltage Selector

3. Speaker Terminals

4. AM Loop Aerial Input Socket

5. Aerial Earth Terminal

6. FM 75 ohms Aerial Socket

7. Span Selector Switch

CP-C402

Speaker Section

8. Bass Reflex Duct

9. Speaker Wire

CD-C401W

CD-C401W,CP-C402

Remote Control

1. Remote Control Transmitter LED

CD Control section

2. Stop Button:

3. (CD) Track Down/Review Button: (TUNER) Preset Down Button:

4. (CD) Track Up/Cue Button: (TUNER) Preset Up Button:

5. Play/Repeat Button:

6. Disc Skip Button

7. Pause Button:

8. Memory Button

9. Clear Button

Common section

10. Extra Bass Button: X-BASS

11. Function Selector Buttons

12. Power Button

13. Volume Up/Down Buttons:

1

5

2 3

6 7

4

89

10

11

12 13

– 5 –

CD-C401W,CP-C402

ON/STAND-BY

CLOCK/

TIMER

TUNING

( )

MEMORY/

SET

AM 12:00 AM 0:00 0:00

1

2

3

6

5

4

7

8

SETTING THE CLOCK

1

Press the ON/STAND-BY switch to enter the stand-by mode.

The display brightness will decrease in stand-by mode.

2

Press the MEMORY/SET button.

3

Press the TUNING ( or ) button to select the time display

mode.

"AM 12:00" → The 12-hour disp lay will appe ar.

(AM 12:00 - PM 11:59)

"AM 0:00" → The 12-hour display will appear.

(AM 0:00 - PM 11:59)

"0:00" → Th e 24-hour di splay will appe ar.

(0:00 - 23:59)

Note that this can only be set when the unit is first installed

or it has been reset (see below).

4

Press the MEMORY/SET button.

5

Press the TUNING ( or ) button to adjust the hour.

Press the TUNING button once to advance the time by 1

hour. Press for more than 0.5 seconds to advance continu-

ously.

When the 12-hour display is selected, "AM" will change auto-

matically to "PM".

6

Press the MEMORY/SET button.

7

Press the TUNING ( or ) button to adjust the minutes.

Press the button for at least 0.5 seconds to advance continu-

ously.

The hour setting will not advance even if minutes advance

from "59" to "00".

8

Press the MEMORY/SET button.

The clock starts operating from "0" seconds. (Seconds are

not displayed.)

Note:

In the event of a power failure or when the AC power lead

is disconnected, the clock display will go out.

When the AC power supply is resumed, the clock display will

flash on and off to indicate that the time must be reset.

If this happens, follow steps 1 and 4 - 8 in the procedure

described above.

To change the clock time:

When the ON/STAND-BY switch is set to STAND-BY.

1

Press the MEMORY/SET button.

2

Perform steps 5 - 8 above.

When the ON/STAND-BY switch is set to ON.

1

Press the CLOCK/TIMER button.

2

Within 3 seconds, press the MEMORY/SET button.

3

Perform steps 5 - 8 above.

To change the time display mode:

1

Press the ON/STAND-BY switch to enter the stand-by mode.

2

Press and hold down the button, and then hold down the

ON/STAND-BY switch for at least 1 second.

(Refer to RESETTING THE MICROCOMPUTER on page 15.)

3

Perform steps 1 - 8 above.

Note:

The operation explained above will erase all data stored in

memory, such as clock and timer settings, tuner and CD pres-

ets.

In this example, the clock is set for the 24-

hour (0:00) system.

PREPARATION FOR USE

15

Notes concerning use:

Replace the batteries if control distance decreases or oper-

ation becomes erratic.

Periodically clean the transmitter LED on the remote control

and the sensor on the main unit with a soft cloth.

Exposing the sensor on the main unit to strong light may

interfere with operation. Change the lighting or the direction

of the unit.

Keep the remote control away from moisture, excessive heat,

shock, and vibrations.

0.2 m - 6 m

(8" - 20')

RESETTING THE MICROCOMPUTER

Reset the microcomputer under the following conditions:

To erase all of the stored memory contents (clock and timer

settings, tuner and CD presets).

If the display is not correct.

If the operation is not correct.

1

Press the ON/STAND-BY switch to enter the stand-by mode.

2

Press and hold down the button, and then hold down the

ON/STAND-BY switch for at least 1 second.

1,2

2

OPERATION MANUAL

– 6 –

DISASSEMBLY

Top Cabinet

(A1)x2 ø3x12mm

(B1)x1 ø3x12mm

(B1)x2 ø3x12mm

Hook

Side Panel (Left)

Side Panel (Right)

Back Board

CD Tray Cover

CD Player Unit

Hook

Driver

Push

Hook (C1)x3

Hook

Driver

Push

(C2)x1

(C3)x4

(D1)x4 ø3x8mm

(D1)x1 ø3x8mm

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 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-C401W

STEP REMOVAL

1 Top Cabinet 1. Screw ..................... (A1) x4 7-1

2 Side Panel 1. Screw ..................... (B1) x6 7-1

(Left/right)

3 CD Player Unit/ 1. Turn on the power supply, 7-2

CD Tray Cover open the disc tray, take out

the CD cover, and close. (Note 1)

2. Hook....................... (C1) x3

3. Hook....................... (C2) x2

4. Socket .................... (C3) x4

4 Back Board 1. Screw ..................... (D1) x5 7-2

5 Main PWB/ 1. Screw ..................... (E1) x10 8-1

Display PWB 2. Hook ....................... (E2) x2

3. Socket .................... (E3) x5

6 Front Panel 1. Screw ..................... (F1) x2 8-1

2. Hook....................... (F2) x3

7 Tape Mechanism 1. Open the cassette holder. 8-2

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

8 Turntable 1. Screw ..................... (H1) x1 8-3

2. Cover ..................... (H2) x1

9 Disc Tray 1. Screw ..................... (J1) x2 8-3

2. Guide ..................... (J2) x2

10 CD Changer 1. Screw ..................... (K1) x4 8-4

Mechanism

11 CD Mechanism 1. Screw ..................... (L1) x1 8-4

Note 1: How to open the change manually. (Fig. 7-3)

1. Insert the tip of fine screwdriver into the hole of CD player base, and press down the worm wheel <A>.

2. Then, turn fully the lock lever in the arrow direction through the hole on the loading chassis bottom in this state. After that, push forward the CD player base.

STEP REMOVAL

CP-C402

1 Speaker 1. Front panel .............(A1) x1 8-5

2. Screw...................... (A2) x4 8-6

PROCEDURE

FIGURE

CD-C401W

LOCK LEVER

CD-C401W,CP-C402

Figure 7-1

Figure 7-2

< A >

Figure 7-3

– 7 –

CD-C401W,CP-C402

Woofer

Speaker Box

(A2) x2 ø4x12mm

(E3)x1

(E1)x2 ø3x10mm

(E3)x1

(E1)x8 ø3x10mm

(E3)x2

Hook (F2)x3

Front Panel

Figure 8-1

Hook (E2)x2

(E3)x1

(F1)x2 ø3x10mm

Front Panel

Display PWB

Main PWB

( K1 ) x4

ø3 x14mm ( L1 ) x1 ø2.6 x10mm

Shift Lever

CD Changer Mechanism

CD Player Base

CD Mechanism

Care when installing the CD changer mechanism. Install the CD changer mechanism on the CD player base after the shift lever has been set in the highest position.

Figure 8-4

CP-C402

Front Panel

(A1) x1

Speaker Box

(G1)x6 ø3x10mm

( J1 ) x1 ø3 x10mm

( H2 ) x1

Figure 8-2

( H1 ) x1 ø3 x10mm

Open

Cassette Holder (Left/Right)

Tape Mechanism

Turntable

Disc Tray

Direction of handle

Figure 8-5

Driver should be pried away from Speaker Box.

Screw Driver

( J2 ) x1

CD Player Unit

( J2 ) x1

Figure 8-3

( J1 ) x1 ø3 x10mm

Figure 8-6

– 8 –

REMOVING AND REINSTALLING THE MAIN PARTS

( B1 ) x2

2.6 x6mm

( B2 ) x1

( B3 ) x1

( B4 ) x1

CD Mechanism

Pickup

CD MECHANISM SECTION

Perform steps 1, 2, 3, 13 and 14 of the disassembly method to remove the CD mechanism.

How to remove the turntable up/down motor (See Fig. 9-1)

1. Remove the screws (A1) x 2 pcs., to remove the turntable up/down motor.

How to remove the pickup (See Fig. 9-2)

1. Remove the screws (B1) x 2 pcs., to remove the shaft (B2).

2. Remove the stop washer (B3) x 1 pc., to remove the gear (B4).

3. Remove the pickup.

CD-C401W,CP-C402

Turntable Up/Down Motor

( A1 ) x2 ø2 x5mm

Figure 9-1

Figure 9-2

– 9 –

CD-C401W,CP-C402

Pin 13 of IC351

Pin 21 of IC351

D

G

S

10 kohm

TO FREQUENCY COUNTER

FET : 2SK19 or 2SK54

ADJUSTMENT

MECHANISM SECTION

• Driving Force Check

Torque Meter

Play: TW-2412 Tape 1: Over 50 g

• Torque Check

Torque Meter

Tape 1

Play: TW-2111 30 to 60 g. cm 30 to 60 g.cm Fast forward: TW-2231 — 80 to 135 g.cm Rewind: TW-2231 — 80 to 135 g.cm

• Tape Speed

Test Tape

Normal MTT-111 Volume in 3,000 ± Speaker speed motor 30 Hz terminal

Adjusting

Point

TUNER SECTION

fL: Low-range frequency fH: High-renge frequency

• AM IF/RF

Signal generator: 400 Hz, 30%, AM modulated

Test Stage

IF 450 kHz 1,602 kHz T351 *1 Band — 531 kHz (fL): T333 *2

Coverage 1.1 ± 0.1 V Tracking 990 kHz 990 kHz (fL): T331 *1

*1. Input: Antenna (CNP301), Output: TP302 *2. Input: Antenna (CNP301), Output: TP301

Frequency Frequency

Display

TAPE MECHANISM

Specified Value

Tape 2: Over 100 g

Specified Value

Specified

Value

Setting/

Adjusting

Parts

Tape 2

Instrument

Connection

(Load resistance: 8 ohms)

Instrument

Connection

• FM RF

Signal generator: 1 kHz, 75 kHz dev., FM modulated

Test Stage

Frequency

Display

Serring/

Adjusting

Point

Band — 88.0 MHz L303(fL): *1 Coverage 3.4 V ± 50 mV

RF 98.00 MHz 98.00 MHz L302 *2

(10-30 dB)

Instrument

Connection

*1. Input: Antenna (CNP301), Output: TP301 *2. Input: Antenna (CNP301), Output: Speaker terminal

• Detection

Signal generator: 10.7 MHz, FM sweep generator

Test

Frequency

Stage

Detection 10.7 MHz 98.00 MHz T352 Input: Pin 1 of

IF 10.7 MHz 98.00 MHz T301(Turn Input: Pin 1 of

Frequency

Display

Adjusting

Parts

Instrument

Connection

IC301 Output: TP302

the core of IC301 transformer Output: TP302 T352 fully counterclookwise.)

• VCO Frequency

Frequency

Display

98.00 MHz 98.00 MHz VR351* Pin 13, Pin 21 (60 dB) and ground

Adjusting

Parts

Instrument

Connection

of IC351

* Adjust for 76 kHz ± 200 Hz.

Notes:

After preparing the test circuit shown in Fig 10-2, connect the Pin 13 , Pin 21 and ground of the IC351 with test circuit, and measure the Value. At this time, apply a standard unmodulated signal input and adjust the VCO.

Volume in motor

FM BAND

TP301

COVERAGE

R319

L303

FM IF

T301

L302

FM RF

T333

IC301

1

MAIN PWB

TP303

VR351

VCO

TP302

13

C364

IC351

+

C360

FM DET.

AM IF

T351

21

T352

Figure 10-1 ADJUSTMENT POINTS

– 10 –

T331

L301

Figure 10-2

AM BAND

COVERAGE fL

AM TRAKING fL

CNP301

AM LOOP ANTENNA

SO301

ANTENNA

TERMINAL

CD-C401W,CP-C402

CD SECTION

Since this CD system incorporates the following automatic adjustment function, when the pickup is replaced, it is not necessary to readjust it. Since this CD unit does not need adjustment, the combination of PWB and laser pickup unit is not restricted.

• Automatic adjustment item

1. Focus offset (Fig. 11-1)

2. Tracking offset (Fig. 11-2)

3. E/F balance (tracking error balance) (Fig. 11-3)

4. RF level AGC function (HF level: constant)

5. RF level automatic follow-up of the tracking gain

This automatic adjustment is performed each time a disc is changed. Therefore, each disc is played back using the optimal settings.

0.1s

0.50 V IC1 20 FE

FOCUS OFF-SET ADJUST

0.1s

0.50 V IC1 7 TE

Figure 11-1

TRACKING OFF-SET ADJUST

1 2

CD TEST MODE

When the PLAY and POWER keys are pressed at the same time in OFF MODE, the

set will enter CD TEST MODE IL is not performed.

↓

"CD TEST" of LCD will light up.

↓

The pickup can be moved by using the ( ) or

( ) key.

→

↓

LASER ON

↓

FOCUS SERVO ON

↓

TRACKING ON THE STOP

SERVO OFF PLAY

Display "CD 01 0:00"

↓

TRACKING ON THE STOP

SERVO OFF PLAY

↓

STOP "CD TEST" will display

Press PLAY key

10ms

0.50 V IC1 20 FE

10ms

0.50 V IC1 7 TE

200 ms 1V/diV IC 1 15

TO

200 ms 1V/diV IC 1 7

TE

Figure 11-2

Figure 11-3

Enlarged View

TRACKING OFF-SET ADJUST

1 2

TRACKING/ ERROR BARANCE

1

ADJUST

2

Cancel method: POWER OFF LCD display: After the PLAY or APMS MEMORY key has been

pressed, the track No. and time only will appear (valid). The other items are optional.

Note: The pickup can be slid using the or key only

while in the stop mode.

ALL CLEAR AND RE-START FUNCTION

When the STOP and POWER keys are pressed to turn on the power, the entire internal memory will be cleared and the mechanism will run from address 0. All of the tuner presets, APMS, TOC and disc numbers which were last stored in memory will be cleared, and the tuner, changer mechanism and all of the other items will be initialized.

– 11 –

CD-C401W,CP-C402

NOTES ON SCHEMATIC DIAGRAM

• Resistor: To differentiate the units of resistors, such symbol as K and M are used: the symbol K means 1000 ohm and the symbol M means 1000 kohm and the resistor without any symbol is ohm-type resistor. Besides, the one with “Fusible” is a fuse type.

• Capacitor: To indicate the unit of capacitor, a symbol P is used: this symbol P means micro-micro-farad and the unit of the capacitor 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.

• The indicated voltage in each section is the one measured by Digital Multimeter between such a section and the chassis with no signal given.

1. In the tuner section,

( ) indicates AM < > indicates FM stereo

2. In the main section, a tape is being played back.

3. In the deck section, a tape is being played back.

( ) indicates the record state.

4. In the power section, a tape is being played back.

5. In the CD section, the CD is stopped.

• Parts marked with “ ” ( ) are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the safety and performance of the set.

REF. NO DESCRIPTION POSITION POSITION

SW1 OPEN/CLOSE ON—OFF SW2 MECHA UP ON—OFF SW3 DISC NUMBER ON—OFF SW4 PICKUP IN ON—OFF SW605 TAPE 1 MAIN ON—OFF SW606 TAPE 2 MAIN ON—OFF SW607 REC. ON—OFF SW608 TAPE 1 PLAY ON—OFF SW701 POWER ON—OFF SW702 VOLUME UP ON—OFF SW703 VOLUME DOWN ON—OFF SW704 PLAY ON—OFF SW705 FF ON—OFF SW706 REW ON— OFF SW707 OPEN/CLOSE ON—OFF

FRONT

VIEW

REF. NO DESCRIPTION

SW708 STOP ON—OFF SW709 DISC SKIP ON—OFF SW710 X-BASS ON—OFF SW711 FUNCTION ON—OFF SW712 BAND ON—OFF SW713 CLOCK/TIMER ON—OFF SW714 MEMORY ON—OFF SW715 TUNING UP ON—OFF SW716 TUNING DOWN ON—OFF SW718 SPAN SELECTOR 50/9— 100/10 SW901 VOLTAGE SELECTOR 110—127—

220—230/240 SWM 3 FOOL PROOF ON—OFF SWM 4 F.A.S. ON—OFF SWM 5 CAM ON—OFF

FRONT

VIEW

ECB

(S)(G)(D)

(1) (2) (3)

2SC1845 F 2SC380 O KRA102 M KRA109 M KRC102 M

BCE (D)(G)(S) (3) (2) (1)

KRC104 M KTA1266 GR KTA1271 Y KTC3199 GR KTC3203 Y

Figure 12 TYPES OF TRANSISTOR

– 12 –

2SD2012 Y

1

2

3

4

5

98

6

7

20

12

13

242530

31

3222

34

35

36

10 11

272628

29

PU-IN SW

XL1

XIN

LD0

FIN2

JP–

CV+

SLC

SL1

FIN1EF

TO

FD

SPO

SP

SLD

SL–

SL+

DRF

CL

DAT

CE

VCC1 VCC2

6

+5V

PICKUP IN

SW4

FOCUS COIL

TRACKING COIL

M1

SPINDLE

MOTOR

M

M2

SLED

MOTOR

PICKUP UNIT

9

IC2

LC78623D

SERVO/SIGNAL

CONTROL

+B5

IC5

M56748FP

DRIVER

IC1

LA9241M

SERVO AMP.

6

1

9

5

+B5

+12V(+B3)

( TO IC401 )

RES. CQCK. COIN

SQOUT. RWC. WRQ

~

CL, DAT, SELIAL CONTROL/CE

Q93

Q91

SL+. SL–. DRF

7 3

9

8

7

6

5

4

3

2

1

GND (D)

MECHA UP

GND (D)

DISK NO.

OPEN/CLOSE

GND (D)M–M+

GND (M)

9

8

7

6

5

4

3

2

1

CNP10

M

+5V

62

64

56 45 3623 43

37

38

39

40

24

25

10 10

265853

101220

324043

44

5352515431302923271615

4144

Q1

+5V

Q81 +5V (+B5)

VOLTAGE

REGULATOR

VOLTAGE

REGULATOR

VOLTAGE

REGULATOR

SWITCHING

FROM POWER AMP.

SECTION

TO MAIN SECTION

IC91

TA7291

MOTOR

CONTROL

XOUT

EFMO

EFMIN

CLV+

JP–

CONT2

CONT1

RCHO

RVSS

LVSS

LCHO

VVDD

VDD

LVDD

RVDD

XVDD

SW1

OPEN/CLOSE

SW2

MECHA UP

SW3

DISC NUMBER

M3

LOADING

SOLM1

TO DISPLAY

SECTION

CNS10

+B5

FROM POWER AMP.

SECTION

CD-C401W,CP-C402

Figure 13 BLOCK DIAGRAM (1/3)

– 13 –

CD-C401W,CP-C402

3

C

SO301

FM75ohms

ANTENNA TERMINAL

AM LOOP ANTENNA

2 1

CNP301

AM ANT.

TERMINAL

L301

RF

3

1

FM IN

L302

FM RF

AM ANT. AM OSC.

T331 T333

FM FRONT END

IC301

TA7358AP

MIX

4

6

VD301

T301 L303

VD331-2VD331-1

CD SECTION

57

FM IF

B.A

OSC

89

FM OSC.

VD302

Q302

CF302

FM +B

RF AMP

FM IF IN

10.7MHz

8

D381

AM IF

T351

AM MIX OUT

1

3

IC351

LA1805

FM IF DET. /FM MPX. /AM IF

67

AM +B

AM OSC

AM RF IN

X381

4.5MHz

VT

1

7

FM

Q381

SWITCHING

CF351

T352

AM IF IN

5

FM DET

DET OUT

Q351

MUTING

FM IN

IC381

LC72131

PLL

+B5

FM DET

VCC

20 21 11

L OUT R OUT

MPX IN

STEREO

MONO/STST

AM IN

ST

10

4

3

6

5

DI

CL

CE

DO

SWITCHING

FM/AM

131524 17 162322

101115162220

VDD

21

Q352

9

10

VR351 FM VCO

17

L R

VOLTAGE

REGULATOR

D382

ZD381

+B5

FM +B

MOTOR

TAPE1

P.B. HEAD

L-CH R-CH

TAPE2

REC/P. B. HEAD

L-CH R-CH

ERASE HEAD

M601

TAPE

M

REC

SWITCHING

Q201 Q206

~

SW606

T2 MAIN

SW605

T1 MAIN

SW608

T1 PLAY

PB

REC. /P. B. AMP.

T1 L

1

24

T1 R

2

T2 L

23

T2 R

L NF

3

R NF

22

POP

6

REDUCE

L REC REC

9

16

R REC

12

SWITCHING

Q207~ Q209

Q212

L203

BIAS OSC

D202D201

IC201

AN7345K

P. B

CLDICE

40232425

21 28

19 30

17 32

16 33 14

LR

9

L

TO

+B4

T2 ON

T1 PLAY

T1/T2

VCC

+B5

13

L OUT

L

4

R

R OUT

21

T1/T2

19

L REC IN

7

18

R REC IN

8

17

ALC

1110

ALC CUT

Q210 Q213

REC MUTING

Q211

SWITCHING

REC

SW607

+B4

CD

TUNER

TAPE

L R

L

R L

R

Figure 14 BLOCK DIAGRAM (2/3)

– 14 –

KEY MATRIX

SW702 ~ SW716

CD-C401W,CP-C402

LCD701

COM 0 ~

COM 3

S0 ~ S20

21

22

25

~~

1

LCD BIAS

~

25 28

29

~~

32 34

KEY IN

37

DO

63

DI

65

CE

66

CL

64

INITIAL1 INITIAL2

IX0182AW

MICROCOMPUTOR

~

T1/T2

T2 ON

T1 PLAY

21

COM OUT SEG OUT

IC701

SYSTEM

POWER CONT.

~~

24

69

9

1

SYSTEM STOP

REMOCON

53526061 62 67 40 51

53 53

59

VDD

POWER CONT.

~

RESET

XL701

4.19MHz

80

68

13

38

58

LMP1

LMP2

RESET

Q701

Q702 Q703

POWER FAIL

DETECTOR

RX701

REMOCON

SWITCHING

Q704

Q705

SWITCHING

D703

+B5

+B6

GRAPHIC EQUALIZER

CLDICE

L

21

R

28

L

19

R

30

L

17

R

32

98

16 33 14 35 56 63 50 26 27 12 37 11 38 10 39

LR

TO CD SECTION

6

7

LC75394E

AUDIO PROCESSOR

5

IC431

GRAPHIC EQUALIZER

V REF

L VREF

R VREF

+B4 +12V

(MECHA)

VSS

4

A VSS

Q925 Q926

VOLTAGE

REGULATOR

3

X- BASS

2

1

VOLUME

VOLTAGE

REGULATOR

Q924

VDD

SW718 SPAN SELECTOR

IC601 LA4282 POWER AMP.

2

VOLTAGE REGULATOR

L-IN

5

R-IN

1

NF

6

3

484746454443424140232425

OUT

8

5

L

55

R

7

5

+B5

Q641

4

GND

P-CONT

D905 ~ D908

9

L-OUT

11

R-OUT

7

10

12

VCC

GND

33V

D901 ~ D904

F901

T2.5A L 250V

F902

T1.6A L 250V

T901 POWER

TRANSFORMER

SPEAKER SWITCH

230-240V

T.F

J601 HEADPHONES

220V 127V 110V

SO601

SPEAKER

TERMINAL

SW901 VOLTAGE SELECTOR

AC SOCKET

SO901

AC POWER SUPPLY CORD

AC 110V/127V/220V/ 230-240V

50/60Hz

TO CD SECTION

+B5 +12V

+B6(5V)

(ANALOG)

VOLTAGE

REGULATOR

IC922

VOLTAGE

REGULATOR

IC921

F921

T500mA L 250V

Figure 15 BLOCK DIAGRAM (3/3)

– 15 –

CD-C401W,CP-C402

P

I

SQOUT

0.01

C1

R1 1K

C2 47/10

KTA1266 GR

C25

0.01

LA9241M

SERVO AMP.

C3

0.1/50 R2

100K

C4

0.001

R4

2.2K C6 0.033(ML)

R5

6.8K

R6

100

R7

1K

C9

0.047

R9

(ML)

27K

R11

3.3K

C75

100P

R281KR29

R39 22K

R40 22K

C11

0.1 (ML)

Q1

3.6V1.3V

3V

IC1

C5

0.033(ML)

R8

12K

C10

180P

C44

330/10

15K

C7

0.1/50

C8

0.068 (ML)

1K

R43

C24

1/50

R3

R12 15K

12

R13 33K

VCC1

FIN2

1

REF

FIN1

2

REF

E

3

F

4

TB

5

TE-

6

TE

7

TESI

8 9

SCI

TH

10

11 12

TD-

TD

13

JP

14

TO

15

FD

16

C13

0.1

(ML)

1 2 3 4 5 6 7 8 9

10 11 12 13 14 15 16 17 18

R45 1K

4.7K

R32

C21 1/50

56K

C45

4.7/25

C34

0.033 (ML)

R36 47K

C32 27P

R35 470

C50

0.1 (ML)

R34

1K

C31

0.0027

R46 1K R47 1K

R38 33K

R37 47K

D2

1SS119

+5V

C53 220P

LUG1

C40

0.33/50 C39

C38

0.01

C37

C35

FE1

REF

C15

0.0047

58

VR

+ –

– +

+ –

SPI

220/6.3

+ –

VCC

+

–

+

–

REF

–

24

0.47/50

0.1/50

57

REF1

DEF

HFL

DRF

8/12CM

REF

FSTA

REF

S.Q.R

JP

+

–

+

SPG

SP–

252627

C16

R21 56K

R22

R20 10K

6.8K

R23

1.2K

C17

56

VCC2

EFBAL FOSTA TOSTA 2FREQ LASER

FSTA

SLOF

0.001

55

FSS

DRF

CV–

+

–

CV+

JP–

+

–

JP+

JPCLO

OR

REF

SLEO

SPO

28

C19 47/10

R25

1.2K

49

DEF

CL

CE

CLK

DAT

FSC

CE

REF

CL

LATOH

REF

RF

RFSM

CV+ CV–

SLOF

HFL

SLOF

+

–

TES

+

–

REF

SL–

SLD

SL+

29

30

C18

1/50

10K

R24

18K

R30

R41

48

TBC

47

46

DGND

45

SLI

44

––+

C33

0.001

SLC

43

R33

5.6K

RFS–

42

+

C30

2.2P

41

TP1

40 39 38

37

36

TOFF

35

TGL

34

JP+

33

JP–

31

32

R27

220K

C20

0.0033

R26

220K

R10

82K

50

54

515253

0.47/50

560

R42

64

61

63

62

LDS

LDO

–

+

RF – +

–

+

REF

–

+

VCR

REF

–

+

REF

–

REF

+

–

+

GEN

REF

–

TO

REF

GEN + –

REF

+

–

FA

FA–

FD-

18

19

17

R14

10K

R15

1.5K

47K

IC5

M56748FP

59

60

LF2

PHI

BHI

REF FE1 REF

VCR

–

+

VCR

+ –

+

TGL1

–

GL

THDL

THD

JP

FSC

FOSTA

GEN

REF

+

–

+

–

REF

AGND

SP

FE

FE–

23

22

20

21

C12

330P

R17

82K

C14

0.01

R16

R19 39K

36 35 34 33 32 31 30

29 28 27

26 25

R31

24

10K

23 22

FOCUS/TRACKING/

SPIN/SLIDE DRIVER

21

20 19

A

CNS1B

K

B

1 2

E

3

A B

4

F

5

CNS1A 1 2 3 4 5

CNP1 1 2 3 4 5

C

PICK UP UNIT

K

1

E

2

A

3

B

4

F

D

5

1 2 3 4 5 6 7 8

1/16

VR1A

1M

2200P

1M

2200P

TR+

FO+

FOTR-

ACTUATOR

E

CNS2B

CNS2A

CNP2

1

TR_

2

TR+

3

FO+

4

FO_

GND

F

5

PD

6

VR

7

LD

8

CD MOTOR

PWB-B

CNS3B

CNS3A

M1

SPINDLE

M

MOTOR

M2

G

SLED

M

MOTOR

SW4

PU-IN

CNP3

SP+

6

SP_

5

SL+

4

SL_

3

PU-IN

2

1

H

• NOTES ON SCHEMATIC DIAGRAM can be found on page 12.

1

23456

Figure 16 SCHEMATIC DIAGRAM (1/9)

– 16 –

R54

1K

PUIN

SL–

SL+

1324

DRF

TO D