AIWA CDC472 Service Manual

Illustration: CD-C472

CD-C472/C3400/C3400C/C3800/C3800C

SERVICE MANUAL

No. S2812CDC472//

CD-C472

CP-C472, CP-SW472, CENTER(GBOXS0006AWM1) and REAR(GBOXS0007AWM1), Constitute CD-C472.

CD-C3400/C3400C

CP-C3400, CP-SW472, CENTER(GBOXS0006AWM1) and REAR(GBOXS0007AWM1), Constitute CD-C3400/C3400C.

CD-C3800/C3800C

CP-C3800, CP-SW3800, CENTER(GBOXS0006AWM3) and REAR(GBOXS0007AWM3), Constitute CD-C3800/C3800C.

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

Illustration: CD-C3400/C3400C/C3800/C3800C

Manufactured under license from Dolby Laboratories Licensing Corporation. DOLBY, the double-D symbol and "PRO LOGIC" are trademarks of Dolby Laboratories Licensing Corporation.

CONTENTS

IMPORTANT SERVICE NOTES (For U.S.A. Only) .......................................................................................................... 2

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

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

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

QUICK GUIDE .................................................................................................................................................................. 7

DISASSEMBLY................................................................................................................................................................. 8

REMOVING AND REINSTALLING THE MAIN PARTS.................................................................................................. 11

ADJUSTMENT................................................................................................................................................................ 12

NOTES ON SCHEMATIC DIAGRAM ............................................................................................................................. 15

WAVEFORMS OF CD CIRCUIT..................................................................................................................................... 16

BLOCK DIAGRAM .......................................................................................................................................................... 17

SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD.............................................................................................20

TROUBLESHOOTING (CD CHANGER CONTROL / CD SECTION) ............................................................................ 34

FUNCTION TABLE OF IC .............................................................................................................................................. 38

FL DISPLAY.....................................................................................................................................................................44

REPLACEMENT PARTS LIST/EXPLODED VIEW

PACKING OF THE SET (For U.S.A. Only)

Page

SHARP CORPORATION

– 1 –

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

CD-C472/C3400/C3400C/C3800/C3800C

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

IMPORTANT SERVICE NOTES (For U.S.A.Only)

BEFORE RETURNING THE AUDIO PRODUCT

(Fire & Shock Hazard) Before returning the audio product to the user, perform the following safety checks.

1. Inspect all lead dress to make certain that leads are not pinched or that hardware is not lodged between the chassis and other metal parts in the audio product.

2. Inspect all protective devices such as insulating materials, cabinet, terminal board, adjustment and compartment covers or shields, mechanical insulators etc.

3. To be sure that no shock hazard exists, check for leakage current in the following manner.

* Plug the AC line cord directly into a 120 volt AC outlet. * Using two clip leads, connect a 1.5k ohm, 10 watt resistor

paralleled by a 0.15µF capacitor in series with all exposed metal cabinet parts and a known earth ground, such as conduit or electrical ground connected to earth ground.

* Use a VTVM or VOM with 1000 ohm per volt, or higher,

sensitivity to measure the AC voltage drop across the resistor (See diagram).

* Connect the resistor connection to all exposed metal parts

having a return path to the chassis (antenna, metal cabinet, screw heads, knobs and control shafts, escutcheon, etc.) and measure the AC voltage drop across the resistor.

VTVM

AC SCALE

1.5k ohms 10W

0.15 µ F

TO EXPOSED METAL PARTS

All check must be repeated with the AC line cord plug connection reversed. Any reading of 0.3 volt RMS (this corresponds to 0.2 milliamp. AC.) or more is excessive and indicates a potential shock hazard which must be corrected before returning the audio product to the owner.

TEST PROBE

CONNECT TO KNOWN EARTH GROUND

– 2 –

SPECIFICATIONS

CD-C472/C3400/

C3400C/C3800/C3800C

General

Power source: AC 120 V, 60 Hz Power consumption: 100 W Dimensions: Width; 10-5/8" (270 mm)

Height; 11-13/16" (303 mm) Depth; 13-13/16" (350 mm)

Weight: 14.0 lbs. (6.4 kg)

Amplifier section

Output power: Front speakers; 25 W minimum RMS into

8 ohms from 60 Hz to 20 kHz with no more than 10 % total harmonic distortion. Center speaker; 10 W (1 kHz, 10 % T.H.D.) Rear speakers; 10 W (total) (1 kHz, 10 % T.H.D.) Sub woofer; 30W (80Hz, 10% T.H.D.)

Output terminals: Front speakers; 8 ohms

Center speakers; 6 ohms Rear Speakers; 12 ohms Sub woofer; 6 ohms Headphones; 16-50 ohms (recommended; 32 ohms)

Input terminal: Video/Auxiliaary (audio signal);

500 mV/47 kohms

Tuner section

Frequency range: FM; 87.5 - 108 MHz

AM; 530 - 1,720 kHz

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: 0.15 % (WRMS)

Compact disc player section

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)

CD-C472/C3400/C3400C/C3800/C3800C

Front speaker section

CP-C472

Type: 2-way 4-3/4" (120 mm) woofer and 2" (50

mm) tweeter type

Maximum input power: 50 W Impedance: 8 ohms Dimensions: Width; 7-1/8" (180 mm)

Height; 11-13/16" (300 mm) Depth; 8-1/2" (216 mm)

Weight: 5.7 lbs. (2.6 kg)/each

CP-C3400/C3800

Type: 3-way type 4-3/4" (120 mm) woofer, 2"

(50 mm) tweeter and super tweeter]

Maximum input power: 50 W Impedance: 8 ohms Dimensions: Width; 7-7/8" (180 mm)

Height; 11-13/16" (300 mm) Depth; 8-1/2" (215.5 mm)

Weight: 5.5 lbs. (2.5 kg)/each

Center speaker section

GBOXS0006AWM1/3

Type: 4" (100 mm) full range speaker Maximum input power: 20 W Impedance: 6 ohms Dimensions: Width; 10-5/16" (262 mm)

Height; 5-3/4" (145 mm) Depth; 7-15/16" (201 mm)

Weight: 2.6 lbs. (1.2 kg)

Rear speaker section

GBOXS0006AWM1/3

Type: 4" (100 mm) full range speaker Maximum input power: 10 W Impedance: 12 ohms Dimensions: Width; 6-3/4" (170 mm)

Height; 4-13/16" (122 mm) Depth; 6-15/16" (176 mm)

Weight: 1.3 lbs. (0.6 kg)/eac

Sub woofer section

CP-SW472/SW3800

Type: 5-1/8" (130mm) full range speaker Maximum input power: 60 W Impedance: 6 ohms Dimensions: Width; 7-7/8" (200 mm)

Height; 11-13/16" (300 mm) Depth; 11-11/16" (297 mm)

Weight: 7.9 lbs. (3.6 kg)

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

– 3 –

CD-C472/C3400/C3400C/C3800/C3800C

NAMES OF PARTS

CD-C472/C3400/

C3400C/C3800/C3800C

Front Panel

1. Disc Tray

2. Disc Number Selector Buttons

3. Disc Skip Button

4. Open/Close Button:

5. Disc Number Indicator

6. Timer Indicator

7. Record Indicator

8. Sleep Indicator

9. Extra Bass Indicator: X-BASS

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

11. Memory Indicator

12. FM Stereo Mode Indicator: ST

13. FM Stereo Indicator:

14. CD Repeat Indicator:

15. CD Play Indicator:

16. CD Pause Indicator:

1234

56789

REC

SLEEP

1 2 3

10

X-BASS

14

11

12

MEMORY ST

kHz MHz

15 16

13

17. Power Button

18. Bypass Button

19. Phantom Button

20. Extra Bass Button: X-BASS

21. Main Volume Up/Down Buttons:

22. Function Selector Buttons

23. Timer/Sleep Button

24. Clock Button

25. Headphone Socket

26. Tuning and Time Up/Down Buttons:

27. Memory/Set Button

28. Record Pause Button:

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

30. Stop Button:

31. Normal Button

32. Play/Repeat Button:

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

34. Equalizer Selector/Demo Mode Button

35. CD Pause Button

36. Random Button

37. Clear Button

38. Sub woofer volume Control

39. (TAPE 1) Cassette Compartment

40. (TAPE 2) Cassette Compartment

22 23

24 25

26

17 18 19 20

27

2829

30

39

31 32 33

40

34

21

36 37

38

35

Rear Panel

1. AC Power Input Socket

2. FM/AM Loop Aerial Socket

3. Video/Auxiliary (Audio Signal) Input Sockets

4. Sub woofer Terminals

5. Rear Speaker Terminals

6. Center Speaker Terminals

7. Front Speaker Terminals

– 4 –

2

3

1

4 5

6

7

CD-C472/C3400/C3400C/C3800/C3800C

Speaker Section Front Speaker

CP-C472

1. Tweeter

2. Woofer

3. Bass Reflex Duct

4. Speaker Wire

CP-C3400/C3800

5. Tweeter

6. Super Tweeter

7. Woofer

8. Bass Reflex Ducts

9. Speaker Wire

Center Speaker

GBOXS0006AWM1/3

10. Full Range Speaker

11. Speaker Wire

Sub woofer

CP-SW472/SW3800

12. Full Range Speaker

13. Speaker Wire

Rear Speaker

GBOXS0006AWM1/3

14. Full Range Speaker

15. Speaker Wire

CP-C472 Front Speaker

1

2 3

CP-C3400/3800 Front Speaker

4

5 6

7

8

9

10

11

12

13

14 15

CD-C472/C3400/

C3400C/C3800/C3800C

Remote Control

1. Remote Control Transmitter LED

2. Surround Level Buttons:

3. Center Level Buttons:

4. Dolby Pro Logic Button

5. Center Mode Button

6. Test Tone Button

7. Balance Control Buttons: Tuner control section

8. Preset Up/Down Buttons: CD Control section

9. Disc Skip Button

10. Play/Repeat Button:

11. Memory Button

12. Clear Button

13. Pause Button:

14. Track Down/Review Button:

15. Track Up/Cue Button:

16. Stop Button:

17. Random Button

Tape control section

18. (TAPE 1) Play Button:

19. (TAPE 1/2) Stop Button:

20. (TAPE 2) Play Button:

21. (TAPE 2) Record Pause Button:

22. (TAPE 2) Rewind Button:

23. (TAPE 2) Fast Forward Button:

24. Equalizer Mode Button

25. Function Selector Buttons

26. Power Button

27. Extra Bass Button: X-BASS

28. Volume Up/Down Buttons:

11

24 25

26 27

2 3

4 5 6

7

12

18 19

13

1

14 15

16

20 21

8

9 10

17

22 23

28

– 5 –

CD-C472/C3400/C3400C/C3800/C3800C

SETTING THE CLOCK

POWER

CLOCK

MEMORY/

SET

TUNING/

TIME

( )

AM 12:00 AM 0:00 0:00

2

3

4

7

6

5

8

9

(Main unit operation)

1 Press the POWER switch to turn the power off.

2

Press the CLOCK button.

3 Within 3 seconds, press the MEMORY/SET button.

4 Press the TUNING/TIME ( or ) button to select the time

display mode.

"AM 12:00" → The 12-hour di splay will ap pear.

(AM 12:00 - PM 11:59)

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

(AM 0:00 - PM 11:59)

"0:00" → The 24-hour display will appear.

(0:00 - 23:59)

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

or it has been reset (see page 18).

5 Press the MEMORY/SET button.

6 Press the TUNING/TIME ( or ) button to adjust the hour.

● Press the TUNING/TIME 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 auto-

matically to "PM".

7 Press the MEMORY/SET button.

8 Press the TUNING/TIME ( or ) button to adjust the

minutes.

● Press the TUNING/TIME ( or ) button once to advance

the time by 1 minute. Hold it down to change the time in 5

minute intervals.

● The hour setting will not advance even if minutes advance

from "59" to "00".

9 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 cord

is disconnected, the clock display will go out.

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

flash on and off to indicate the time when the power failure

occurred or when the AC power cord was disconnected.

If this happens, follow the procedure below to change the

clock time.

To change the clock time:

When the POWER switch is set to OFF.

① Press the MEMORY/SET button.

② Perform steps 6 - 9 above.

When the POWER switch is set to ON.

① Press the CLOCK button.

② Within 3 seconds, press the MEMORY/SET button.

③ Perform steps 6 - 9 above.

To see the time display:

Press the CLOCK button.

● The time display will appear for about 3 seconds.

To change the time display mode:

① Perform steps 1 - 2 in the section "RESETTING THE MICRO-

COMPUTER", on page 18.

② Perform steps 1 - 9 above.

In this example, the clock is set for the

12-hour (AM 12:00) system.

RESETTING THE MICROCOMPUTER

Reset the microcomputer under the following conditions:

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

settings, and tuner and CD presets).

● If the display is not correct.

● If the operation is not correct.

1

Press the POWER switch to turn the power off.

2

While pressing down the VOLUME button and the /

button, hold down the POWER button for at least 1 sec-

ond.

Caution:

● The operation explained above will erase all data stored in

memory including clock and timer settings, and tuner and CD

presets.

1,2

2

OPERATION MANUAL

– 6 –

CD-C472/C3400/C3400C/C3800/C3800C

MINI COMPONENT SYSTEM

CD-C472

Preparation fo r use

Preparación pa ra su uso

● AM Loop Antenna

●

Antena de cuadro de AM

● FM Antenna

●

Antena de FM

● AC 120 V, 60 Hz

●

120 V de CA, 60 Hz

B

White line

Línea blanca

RATED SPEAKER IMPEDANCE:

Red

Rojo

Red

D

Rojo

Black

Negro

RIGHT

8 OHMS

MIN.

FRONT

LEFT

CD playback

Reproducción d e discos compactos

C D

OPEN

/CLOSE

● Label facing up

●

Etiqueta hacia arriba

SPEAKERS

CENTER

6 OHMS

MIN.

Black

Negro

RIGHT

REAR

LEFT

12 OHMS

MIN.

White line

Línea blanca

White line

Línea blanca

SUB WOOFER

Red

6 OHMS

MIN.

Rojo

Black

Negro

A

OPEN

/CLOSE

Quick-Guide

Turning the power on and off

Conexión y desconexión de la alimentación

A

B

C

D

POWER

● The sound level at a given volume setting depends on a combination of speaker efficiency, location and many other factors. It is advisable to avoid exposure to high volume levels, which occur while turning the unit on with the volume control setting up high, or while continually listening at high volume levels.

● Only discs bearing the logo as shown can be played in this unit.

Guía rápida

Remote contro l

Control remoto

Remote Sensor

Sensor remote

+

● 2 "AA" batteries

●

Dos pilas "AA"

● Batteries are not included.

●

Las pilas no están incluidas.

Precaution

8" - 20' (0.2m - 6m)

0,2m - 6m

15

Recording from CDs

Grabación de dis cos compactos

C D

Load the disc to be recorded.

Introduzca el disco que va a grabar.

TAPE 2

REC PAUSE

Tape playback

Reproducc ión de cintas

TAPE (1 2)

TAPE 1

TAPE 2

Radio operation

Funcionamiento de la radio

TUNER (BAND)

FM STERO

FM MONO

AM

ST

CD recording starts.

La grabación de CD empieza.

TUNING/TIME

Precaución

•

El nivel de sonido en una posición de volumen fijado depende de una combinación del rendimiento de las altavoces, la posición y muchos otros factores. Es aconsejable evitar un aumento de volumen. Esto se produce, por ejemplo, al conectar el aparato con el volumen puesto en una posición alta. Evite continuar la audición prolongada a altos niveles de sonido.

•

En este aparato sólo pueden reproducirse los discos que tengan el logotipo mostrado.

Sound control

Control del sonido

Main volume

Volumen principal Volumen de subgraves

VOLUME UP • • •

X-BASS

DOWN •

Equalizer

Ecualizador

Extra-BASS

Graves extra

VOLUME

EQUALIZER

DEMO

FLAT HEAVY-1 SOFT-2

VOLUME UP • • •

X-BASS

DOWN •

Sub woofer volume

SUB WOOFER

MIN MAX

EQUALIZER

HEAVY-2

SOFT-1

X-BASS

VOLUME

MODE

VOCAL

– 7 –

CD-C472/C3400/C3400C/C3800/C3800C

LOCK  LEVER

< A >

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 be removed when disassembling the unit. After servicing the unit, be sure to rearrange the leads where they were before disassembling.

4. Take suffcient care on static electricity of integrated circuits and other circuits when servicing.

CD-C472/C3400/

C3400C/C3800/C3800C

STEP REMOVAL PROCEDURE FIGURE

1 Top Cabinet 1. Screw ..................... (A1) x4 8-1

2 Side Panel 1. Screw ..................... (B1) x6 8-1

(Left/right) 2. Screw ..................... (B2) x2

3 CD Player Unit/ 1. Turn on the power supply, 8-2

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. Screw ..................... (C3) x1

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

4 Back Board 1. Screw ..................... (D1) x9 8-2

2. Socke ..................... (D2) x1

5 Main PWB 1. Screw ..................... (E1) x1 9-1

2. Socket .................... (E2) x2

3. Flat Wire................. (E3) x1

4.Tip Wire................... (E4) x1

5.Socket ..................... (E5) x1

6 Front Panel 1. Screw ..................... (F1) x2 9-1

7 Display PWB/ 1. Socket .................... (G1) x1 9-2

Switch PWB 2. Screw .....................

8 Tape Mechanism 1. Open the cassette holder. 9-2

2. Screw...................... (H1) x5

9

Power Amp. PWB

10 Turntable 1. Screw ..................... (K1) x1 9-4

11 Disc Tray 1. Screw ..................... (L1) x2 9-4

12 CD Player Unit 1. Screw ..................... (M1) x1 9-5

13 CD Changer 1. Screw ..................... (N1) x4 9-6

Mechanism 1. Screw

14 CD Mechanism 1. Screw ..................... (P1) x1 9-6

1. Screw ..................... (J1) x3 9-3

2. Socket .................... (J2) x2

2. Cover ..................... (K2) x1

2. Guide ..................... (L2) x2

2. Socket .................... (M2) x4

Note 1:

How to open the changer manually. (Fig. 8-3)

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.

(G2) x13

CD-C472/C3400/

C3400C/C3800/C3800C

( A1 ) x2 ø3 x12mm

( B1 ) x2 ø3 x8mm

Side Panel (Right)

( B2 ) x2 ø3 x8mm

Rear Panel 

(C2) x1

( C4 ) x2

A

CD Player Unit

Back Board 

( D2 ) x1

( C3 ) x1 ø3 x8mm

( D1 ) x7 ø3 x8mm

Figure 8-1

Pull

Figure 8-2

Top Cabinet

CD Tray Cover

1

( D1 ) x2 ø3 x10mm

( A1 ) x2 ø3 x12mm

Side Panel (Left)

( B1 ) x2 ø3 x8mm

Hook ( C1) x3

1 2

Front Panel

Main PWB

( C2 ) x1

Figure 8-3

– 8 –

( E4 ) x1

 ( E2 ) x2 

CD-C472/C3400/C3400C/C3800/C3800C

( K1 ) x1 ø3 x10mm

Front Panel

( K2 ) x1

Turntable

( E3 ) x1 

Power Amp.  PWB

Main PWB

( G2 ) x3 ø3 x10mm

( G2 ) x10 ø3 x10mm

Push

(E5) x1 

Figure 9-1

Switch PWB

Front Panel

Push

( F1 ) x2 ø3 x8mm

( G1 ) x1

Display  PWB

Tape Mechanism

( E1 ) x1 ø3 x10mm

Open

( L1 ) x1 ø3 x10mm

( L2 ) x1

CD Player Unit

Disc Tray

( L1 ) x1 ø3 x10mm

( L2 ) x1

Figure 9-4

( M1 ) x1 ø3 x10mm

( M2 ) x2

( H1 ) x5 ø3 x10mm

Tape Mechanism

Power  Transfomer

( J2 ) x1

Figure 9-2

( J1 ) x3 ø3 x12mm

Figure 9-3

Cassette Holder (Left/Right)

( J2 ) x1

Power Amp.  PWB

( M2 ) x2

CD Player Unit

Figure 9-5

( N1 ) x4

ø3 x12mm ( P1 ) x1 ø2.6 x10mm

Shift Lever

CD Changer Mechanism

CD Player Base

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 9-6

CD Mechanism

– 9 –

CD-C472/C3400/C3400C/C3800/C3800C

CP-C472

STEP REMOVAL PROCEDURE FIGURE

1 Front Speaker 1. Net.......................... (A1) x1 10-1

2. Front Panel ............ (A2) x1

3. Screw ..................... (A3) x2

4. Screw ..................... (A4) x4

CP-C3400/C3800

STEP REMOVAL PROCEDURE FIGURE

1 Front Speaker 1. Net.......................... (A1) x1 10-2

2. Duct Panel ............. (A2) x1

3. Screw ..................... (A3) x2

4. Screw ..................... (A4) x4

CP-C472

Front Panel ( A2 ) x1

Net ( A1 ) x1

CP-C3400/C3800

 ( A1 ) x1

( A3 ) x2 ø3 x10mm

( A4 ) x4 ø3 x12mm

Figure 10-1

Super Tweeter

( A3 ) x2 ø3 x10 mm

Tweeter

Woofer

Screwdriver

Tweeter

CP-SW472/SW3800

STEP

REMOVAL PROCEDURE FIGURE

1 Sub woofer 1. Net.......................... (A1) x1 10-3

2. Duct Panel ............. (A2) x1

3. Screw ..................... (A3) x4

Note:

The center and rear speakers can be easily disassembled. Therefore the disassembling method is not discribed. For details refer to the disassembling drawing in the Parts Guide.

( A2 ) x1

CP-SW472/SW3800

Net  ( A1 ) x1

( A3 ) x4 ø3 x12mm

( A4 ) x4 ø4 x12mm

Figure 10-2

Woofer

Screwdriver

Woofer

– 10 –

( A2 ) x1

Figure 10-3

Screwdriver

REMOVING AND REINSTALLING THE MAIN PARTS

CD MECHANISM SECTION

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

How to remove the loading motor (See Fig. 11-1)

1. Remove the screws (A1) x 2 pcs., to remove the loading motor.

CD-C472/C3400/C3400C/C3800/C3800C

Loading / Up / Down Motor

Motor PWB

( A1 ) x2 ø2.6 x5mm

Figure 11-1

How to remove the pickup (See Fig. 11-2)

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.

( B1 ) x2 ø2.6 x6mm

Shaft ( B2 ) x1

Stop Washer ( B3 ) x1

Pickup

CD Mechanism Gear ( B4 ) x1

Figure 11-2

– 11 –

CD-C472/C3400/C3400C/C3800/C3800C

ADJUSTMENT

MECHANISM SECTION

• Driving Force Check

Torque Meter Specified Value

Play: TW-2412 Tape 1: Over 80 g

Tape 2: Over 80 g

• Torque Check

Torque Meter

Play: TW-2111 30 to 60 g. cm 30 to 60 g.cm Fast forward: TW-2231 — 60 to 120 g.cm Rewind: TW-2231 — 60 to 120 g.cm

• Tape Speed

Test Tape

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

Adjusting

(MM1) (Load

TUNER SECTION

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

• AM IF/RF

Signal generator: 400 Hz, 30%, AM modulated

Test Stage Frequency Frequency

IF 450 kHz 1,720 kHz T351 *1 Band — 530 kHz (fL): T302 *2

Coverage 1.1 ± 0.1 V Tracking 990 kHz 990 kHz (fL): T302 *1

*1. Input: Antenna, Output: TP302 *2. Input: Antenna, Output: TP301

TAPE MECHANISM

Tape 1

Point

Display

MM 1 Motor

Specified Value

Specified

Value

Setting/

Adjusting

Parts

Tape 2

Instrument

Connection

resistance: 8 ohms)

Instrument

Connection

• FM RF

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

Test Stage

Band — 87.50 MHz L303(fL): *1 Coverage 3.4 V ± 50 mV

RF 98.00 MHz 98.00 MHz L302 *2

Frequency

(10-30 dB)

Frequency

Display

Serring/

Adjusting

Point

Instrument

Connection

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

• Detection

Signal generator: 10.7 MHz, FM sweep generator

Test

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

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

Instrument

Connection

IC303 Output: TP302

• VCO Frequency

Frequency

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

Frequency

Display

Adjusting

Parts

Instrument

Connection

of IC303

* Adjust for 76 kHz ± 200 Hz.

Notes:

After preparing the test circuit shown in Fig 12-2, connect the Pin 13 , Pin 21 and ground of the IC303 with test circuit, and measure the Value. At this time, apply a standard unmodulated signal input and adjust the VCO.

Pin 13 of IC303

G

Pin 21 of IC303

FET : 2SK19 or 2SK54

D

S

TO FREQUENCY COUNTER

10 kΩ

Volume in motor

MAIN PWB

1

IC301

FM BAND COVERAGE fL

13

TP302

VR351

VCO

R340

AM IF

IC303

L303

T351

1

21

T352

FM DET

L302

FM RF

T301

FM IF

R316 AM BAND COVERAGE fL

TP301

T302

AM TRACKING fL

Figure 12-1 ADJUSTMENT POINTS

– 12 –

Figure 12-2

TEST MODE

• Setting the test mode Any one of test mode can be set by pressing several keys as follows. <REC. PAUSE> + <DISC. SKIP> + <POWER> TEST: CD operation test

• TEST mode

Function — CD test mode

Setting of TEST mode Indication of CD TST mode (Fig. 13-1) OPEN/CLOSE operation is manual operation. The pickup can be moved by using the (

<MEMORY> LASER ON

<MEMORY> Tracking on the spot. SERVO OFF PLAY

) or ( ) key.

<MEMORY> Tracking on the spot. SERVO ON PLAY

IL is not performed.

CD-C472/C3400/C3400C/C3800/C3800C

<STOP>

STOP

<PLAY> key input

TOC. IL is performed, and the ordinary PLAY is performed. If the following key is pressed during PLAY, it is possible

Press <STOP> key.

Stop

to specify directly any Track No. <Disc Number 1> key: Track 4 <Disc Number 2> key: Track 9 <Disc Number 3> key: Track 15

Note:

Only in STOP state it is possible to slide the pickup with the ( ) or ( ) key. VOL. --- Last memory

BAL. --- CENTER R.GEQ. --- FLAT X-BAS --- OFF

1 2 3

Canceling method - POWER OFF

Figure 13-1

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. 13-2)

2. Tracking offset (Fig. 13-3)

3. E/F balance (tracking error balance) (Fig. 13-4)

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

0.1s

0.50 V IC1 7 TE

FOCUS OFF-SET ADJUST

TRACKING OFF-SET ADJUST

1 2

10ms

0.50 V IC1 20 FE

10ms

0.50 V IC1 7 TE

Figure 13-2

200 ms 1V/diV IC 1 15

200 ms 1V/diV IC 1 7

TO

TE

TRACKING/ ERROR BARANCE

1

ADJUST

2

Figure 13-4

– 13 –

Figure 13-3

Enlarged View

TRACKING OFF-SET ADJUST

1 2

CD-C472/C3400/C3400C/C3800/C3800C

EXPLANATION OF DOLBY SURROUND PRO LOGIC AND EVALUATION METHOD

Outline

• Namely, two speakers are connected in parallel to one amplifier.

• In the Pro Logic BYPASS mode the amplifier for C-ch (center

channel) and the amplifier for S-ch (surround channel) are in MUTE state. The SP output is cut.

• State of element output and terminal output in specific mode

State of set Dolby Pro Logic Dolby Pro Logic On mode Output point Bypass mode Normal mode Phantom mode

IC501 12 pin L-out Output enabled state Output enabled state Output enabled state

11 pin R-out Output enabled state Output enabled state Output enabled state IC501 9pin C-out No output Output enabled state No output IC501 10pin S-out No output Output enabled state Output enabled state SP OUT L-ch Output enabled state Output enabled state Output enabled state (SO901) R-ch Output enabled state Output enabled state Output enabled state SP OUT C-ch No output in MUTE (Q604) state Output enabled state No output in MUTE (Q604) state (SO901) SP OUT S-ch No output in MUTE (Q603) state Output enabled state Output enabled state (SO901)

Test tone output

• Pro Logic ON Normal mode Press the remote control TEST TONE button. →Output of only L-ch →Output of only C-ch

↑ ↓

Output of only S-ch ← Output of only R-ch The test tone (noise) is repeatedly output for output period (2 sec). In this case the following indication appears repeatedly. →TEST →L-ch →C-ch

↑ ↓

S-ch ← R-ch

• Pro Logic ON Phantom mode Press the remote control TEST TONE button. →Output of only L-ch →Output of only R-ch

↑ ↓

← Output of only S-ch The test tone (noise) is repeatedly output for output period (2 sec).

In this case the following indication appears repeatedly. →TEST → L-ch → R-ch

↑ ↓

← S-ch←

Relation between VIDEO IN input and output in Pro Logic ON state

(1) L-ch/R-ch same phase input into VIDEO IN input jack in

VIDEO Function mode

Output point Normal mode

SP out L-ch Almost no output (only omitting component) (SO901) R-ch Almost no output (only omitting component)

(SO901) SP out C-ch (SO901) SP out S-ch

Input signal is output. Almost no output (only omitting component)

• In the normal mode of Pro Logic ON mode the amplifiers for C-ch and S-ch are in operative state, so that the SP output appears.

• In the Phantom mode of Pro Logic ON mode the amplifier for C-ch is in MUTE state, so that the SP output is cut. The amplifier for S-ch (surround) is in operative state, so that the SP output appears

Output point Phantom mode

SP out L-ch Input signal is output. (SO901) R-ch Input signal is output.

(SO901) SP out C-ch SP cut, no output (SO901) SP out S-ch

Almost no output (only omitting component)

(2) L-ch/R-ch reverse phase input into VIDEO IN input jack in

VIDEO Function mode

(Reverse phase: Phase difference between L and R is 180°)

Output point Normal mode

SP out L-ch (SO901) R-ch

(SO901) SP out C-ch (SO901) SP out S-ch Input signal is output.

Output point Phantom mode

SP out L-ch (SO901) R-ch

(SO901) SP out C-ch SP cut, no output (SO901) SP out S-ch Input signal is output.

Almost no output (only omitting component) Almost no output (only omitting component)

Almost no output (only omitting component)

Almost no output (only omitting component) Almost no output (only omitting component)

• Accordingly, if you want to output signal waveform to C-ch SP

out, give the same phase input into L-ch/R-ch INPUT in the Pro Logic Normal mode.

If one of channels receives input, C-ch does not output. Only

L-ch or R-ch outputs.

• If you want to output signal waveform to S-ch SP out, you can

use either Normal mode or Phantom mode. However, 180° reverse phase input must be given to L-ch/R-ch INPUT.

– 14 –

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.

CD-C472/C3400/C3400C/C3800/C3800C

• 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

SW1 OPEN/CLOSE ON—OFF SW2 MECHA UP ON—OFF SW3 DISC NUMBER ON—OFF SW4 PICKUP IN ON—OFF SW701 EQUALIZER/DEMO ON—OFF SW702 VOLUME DOWN ON—OFF SW703 X-BASS ON—OFF SW704 VOLUME UP ON—OFF SW705 OPEN/CLOSE ON—OFF SW706 DISC SKIP ON—OFF SW707 DISC 1 ON—OFF SW708 DISC 2 ON—OFF SW709 DISC 3 ON—OFF SW710 REC. PAUSE ON—OFF SW711 UP ON— OFF SW712 STOP ON—OFF SW713 PLAY ON—OFF SW714 DOWN ON—OFF SW715 TUNING UP ON—OFF

DESCRIPTION

POSITION POSITION

FRONT

VIEW

REF. NO

SW716 TUNING DOWN ON—OFF SW717 POWER ON—OFF SW718 CLOCK ON—OFF SW719 TIMER/SLEEP ON—OFF SW720 MEMORY/SET ON—OFF SW721 CD ON—OFF SW722 TUNER/BAND ON—OFF SW723 TAPE ON—OFF SW724 VIDEO/AUX ON—OFF SW725 PASS ON—OFF SW726 NORMAL ON—OFF SW727 PHANTOM ON—OFF SW728 CD PAUSE ON—OFF SW729 CD CLEAR ON—OFF SW730 RANDOM ON—OFF SWM 3 FOOL PROOF ON—OFF SWM 4 F.A.S. ON—OFF SWM 5 CAM ON—OFF

DESCRIPTION

FRONT

VIEW

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

2SA1015 GR 2SC535 C 2SD468 C KRA102 M KRA109 M KRC102 M KRC104 M

ECB

KRC107 M KTA1266 GR KTA1271 Y KTC3199 GR KTC3200 GR KTC3203 Y

Figure 15 TYPES OF TRANSISTOR

– 15 –

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

2SD2012

CD-C472/C3400/C3400C/C3800/C3800C

WAVEFORMS OF CD CIRCUIT

STOP PLAY

FOCUS SERCH

5ms

0.50 V

1

IC1 20 F.E

5ms

5.0 V

2

IC1 54 DRF

3 1

0.5ms

6

10.0 V JP+

0.5ms

10.0 V

7

JP-

0.5ms

8

0.50 V JP

0.5ms

1.00 V

9

TE

0.5ms

3

1.00 V HF

0.5ms

4

5.0 V HFL

0.5ms

5

5.0 V TES

0.5ms

1.00 V

3

HF

0.5ms

4

5.0 V HFL

0.5ms

5

5.0 V TES

50ms

6

10.0 V JP+

50ms

10.0 V

7

JP50ms

0.50 V

8

JP 50ms

1.00 V

9

TE

CUE

1 2

3

REVIEW

1 2

3

CUE

10

11

10

11

12

20ms

1.00 V SPO

20ms

2.00 V CLV+

50ms

1.00 V SPO

50ms

2.00 V CLV+

5s 100mV SLD

PLAY

NORMAL DISC TN0=01

PLAY

TCD-712 (140mm) TN0=01

PLAY

TCD-712

0.5ms

10.0 V

6

JP+

0.5ms

10.0 V

7

JP-

0.5ms

0.50 V

8

JP

0.5ms

9

1.00 V TE

50ms

10.0 V

6

JP+ 50ms

10.0 V

7

JP50ms

0.50 V

8

JP 50ms

1.00 V

9

TE

REVIEW

12

0.5s 100mV SLD

1

– 16 –

1

2

3

4

5

98

6

7

20

12

13

242530

31

3222

34

35

36

10 11

27

26

28

29

PU-IN SW

XL1

XIN

LD0

FIN2

JP–

CV+

SLC

SL1

FIN1EF

TO

FD

SPO

NC

SLD

SL–

SL+

DRF

CL

DAT

CE

VCC1

6

+5V

PICKUP IN

SW4

FOCUS COIL

TRACKING COIL

M1

DISC

MOTOR

M

M2

SLIDE

MOTOR

PICKUP UNIT

9

IC2

LC78623D

SERVO/SIGNAL

CONTROL

+B1

IC3

M56748FP

DRIVER

IC1

LA9241M

SERVO AMP.

6

1

9

5

+B1

+12V(+B5)

( TO IC601 )

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

+B1

62

64 45 3623 43

37

38

39

40

24

25

10 10

265853

101220

324043

44

5352515431302923271615

4144

Q1

Q52

+4.3V

Q81 +7.3V (B1)

REGULATOR

TO MAIN SECTION

IC81

TA7291S

LORDING MOTOR

DRIVER

XOUT

EFMO

EFMIN

CLV+

JP–

CONT2

CONT1

RCHO

RVSS

LVSS

LCHO

VVDD

VDD

LVDD

RVDD

XVDD

SW1

OPEN/CLOSE

SW2

MECHA UP

SW3

DISC No.

M3

LOADING

SOLM1

TO DISPLAY

SECTION

CNS10

CD-C472/C3400/C3400C/C3800/C3800C

Figure 17 BLOCK DIAGRAM (1/3)

– 17 –

CD-C472/C3400/C3400C/C3800/C3800C

X

P

A

D

B

FM&AM LOOP ANT

FM BPF

BF301

1

234

AM TRACKING

IC301

FM FRONT END

TA7358AP

57

FM

OSC

FM RF FM OSC

L302

T302

AM ANT.

8

L303

Q302

OSC BUFF

6

9

FM IF

T301

AM BAND COVERAGE

CF301

FM +B

FM OSC

FM IF IN

VT

SWITCHING

Q344

1

AM MIX

AM IF

3

24

AM OSC IN

FM

+B4

T351

2223

AM+B

6

5

GND

AM IF

FM/AM IF

IC303

LA1805

AM RF IN

X352

4.5MHz

20

1

OSC

PLL CONTROLLER

7

+B4

21

FM+B

22

LC72131

10

ST

FM DET

7

STEREO

15 16

IC302

VR351

MPX VCO ADJ

T352

FM DET

20 13 15

VCO

MPX IN

DET OUT

FM IN

DI

AMIN

CE

11

4

3

5

MO/ST

FM/AM

111617

SWITCHING

VOLTAGE

REGURATER

CL

DO

6

17

21

L

R

FM/AM

Q343

ST

9

10

+

FM

FROM CD SECTION

TAPE 1

PB HEAD

L-CH R-CH

TAPE 2 REC/PB

HEAD

L-CH

R-CH

J501

VIDEO/AU

L R

TA

TU

C

18

IC501

LV1035M

DECORDER

33

21

LT-IN

45

RT-IN

L-OUT

R-OUT

44

24

23

31 32

X501

PLAYBACK&RECORD/

PLAYBACK AMP.

IC101

AN7345K

L (T1)

1

24

POP REDUCE

SWITCHING

Q107 Q108

R (T1)

L (T2)

R (T2)

L NF R NF

L REC

R REC

REF

2

23

3 4

T1/T2

6

REC

9

16

14

NOR/ HIGH

12

SWITCHING

Q103

~

Q106

REC

P.B

AC BIAS

P.B.

L

R

H/N

T1/T2

1915

SWITCHING

Q111

13

+B4

P.B

L

4

21

R

5

20

L

REC

7

18

R

8

L NF

17

R NF ALC

10

Q121 Q122

MUTING

REC

T1/T2

+B4

8

34

CL

38

CL

35

DATA

DOLBY PRO LOGIC

37

DATA

36

ENABLE

42

ERASE HEAD

BIAS OCS

Q128 L104

Q109 Q110

SWITCHING

Q124

BIAS Q126

Figure 18 BLOCK DIAGRAM (2/3)

– 18 –

BIAS

CD-C472/C3400/C3400C/C3800/C3800C

T

L

9

10

R

M

FM/AM

WITCHING

Q343

OLTAGE

GURATER

7

ST FM

J501

VIDEO/AUX

L R

R-OUT

24

23

L-OUT

+B4

AUX

TAPE

TUNER

CD

MONO/ST

FM

+B2

FL701

DISPLAY

11

IC451

Q707~ Q709 LED701~ LED706

37

9

44

3330 31 32

Q701

6

~

1

80

~

72 71 70

~

65 64

~

61

Q705 Q706

39

VOLUME

X-BASS

3

CD DSP WRQ

T1/T2

TAPE REC

TAPE BIAS

9

8

7

SYSTEM CONTROL MICROCOMPUTER

60

57

R MUTE

TAPE FP

T1 RUN PLSE

TAPE MECHASTOP

Q603 Q604

12

36

OUT REAR

20 28

CENTER

R

17 31

L

3018

RRIN

LRIN

+B4

8

7

4

VR701 SUB WOOFER VOLUME

CD DSP SQOUT

CD DSP COIN

CD DSP RWC

CD DSP CQCK

16151413121110

IC701

IX0192AW

VDD

D.P.CE

TAPE SOL

TAPE MOTOR

+B2

3

F-MUTE

Q601 Q602

SUB-WOOFER IN

CD DSP RES

RESET

CD T/T OPEN/CLOSE

F-MUTE

RX701

2

FRONT

Q904

2

1~

CLDICE

23

24 25 56

L

52 60

R L

53 59

R L

54 58

R L

55 57

R

LTIN

VDD

AUDIO PROCESSOR

49 6348 64 26

RTIN

3

SWM3

FOOL PROOF

SWM4 F. A. S

SOLM1

SOLENOID

SWM5

CAM

41

7

IC601

LC75396E

GRAPHIC EQUALIZER

VSS

PRESET GRAPHIC EQUALIZER

+B4

10

38

40

8

4425436

NJM4558L

SUB WOOFER AMP.

MEMORY BACK UP

1

R-IN

L-IN

C-MUTE

H/P MUTE

Q671 Q672 Q673 Q674

13

9 7

14

8

16 12

18

3

UNSWITCH +B1

L-CH INPUT

T2 RRUN PLSE

CD UP DOWN/DISC NO

R-CH INPUT

2423222120191817

25

~

27 29 30 33 34 35

CL

36

DE

37

DI

38

DO

39

DRF

40

42 41434445464748495051 4352535455565859

POWER

CD SL–

CD SL+

CD PUIN

POWER AMP.

REAR-IN CENTER-IN

VCC

12

NF

11

4

3

14

IC901

STK40724

POWER AMP.

+B

–B

5

19

4

STAND-BY

1

VDD

AVDD

+B2

AVREF

XL701

4.19MHz

SYSTEM STOP

IC681

NJM4560L

HEADPHONE AMP.

3 5

IC951

LA4451

REAR-OUT

2 5

CENTER

OUT

Q903

Q901 Q902

FRONT

L-OUT

9 8

R-OUT

20

SUB-WOOFER OUT

D801

TO CD SECTION TO CD SECTION

TO POWER SECTION +B5

PHM1

KEY

SW701

~

SW730

–

Q905Q605

SPEAKER TERMINAL

TO CD SECTION

Q705 Q706

ZD701

TO CD SECTION

+B1

+

M901 FAN MOTOR

M

JA901 HEADPHONES

SO901

+

SUB WOOFER

–

+ –

REAR SPEAKER

– + –

CENTER SPEAKER

+

+ –

FRONT SPEAKER

– +

RESET

Q704

1 7

4

OGIC R

31 32

X501

22

9

S- OUT C-OUT

+B1

+B4

+B5

+B1

+7.3V

+12V (ANALOG)

+12V (MOTOR)

+5.6V

Q710

VOLTAGE

REGULATOR

Q820 Q822

VOLTAGE

REGULATOR

Q824 Q825

Q823 Q826

VOLTAGE

REGULATOR

Figure 19 BLOCK DIAGRAM (3/3)

– 19 –

ZD801

D802

Q801

VOLTAGE

REGULATOR

D803 ~ D806

D807 D809

AC POWER

~

T.F

SUPPLY CORD

AC 120V 60Hz

CD-C472/C3400/C3400C/C3800/C3800C

3

9

A

R2 1K

C15

0.01

CNS1B

5

B

K

4

E A

3 2

B

1

F

CNS1A

1 2 3 4 5

K

1

A

2

B

3

E

4

F

5

CNP1

9

C

LD

MON

K E B LD GND

A F

2200P

C

LT0H30M1

D

ACTUATOR

1M

2200P

1M TR+ FO+

FO–

TR–

5

K

4

E A

3 2

B

1

F

1

TR–

2

TR+

3

FO+

4

FO–

5

GND

6

PD

7

VR

8

LD

C2

0.01

1.5V

C4

0.1/50

C54

R12 100

R131KC9

R14 27K

R16

3.3K

R22

C12

0.1

C1

4.2V

0.001

R10

2.2K

R11

6.8K

22K

100/16

R9

0.047

R15 12K

Q1 KTA1266 GR

4.8V

R8 15K

100K

C7

0.1/50

C8

0.068

C10 180P

8

R20

1K

R21

22K

PICKUP UNIT

E

CNS2B

11 2 3 4 5 6

7

8

CNP3A

CNS3B

6

5

4

3

2

1

CNS2A

2 3 4

5 6

7 8

CNP2

CNS3A

6 5 4 3 2 1

1 2 3 4 5 6 7 8

CNP3

SP+

6

SP–

5

SL_+

4

SL_–

3

CD_PUIN

2

CD_GND

1

C36 100/16

TR– TR+ FO+ FO–

GND

PD VR LD

F

+

M1

DISC

M

MOTOR

SLIDE

MOTOR

SW4

PICKUP

– +

M2

M

–

IN

+B +B

C3

1/50

C34

0.33/50 C32

0.01

C33

0.47/50

R46

560

0V

4.2V

4.8V

REF

1

2.5V

2.5V 0V

2.5V

2.5V 2V 2V 0V 0V 0V 0V 2V 2V

2.5V

2.5V 0V

4.7V 0V

2.2V

1V

LDS

BHI

PHI

LDO

–

VCC1

+

RF

–

+

–

FE1

+

REF

VCR

–

+

REF

+

REF

–

REF

–

+

GEN

REF

–

+

FD–

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

2.5V

–

VCR

+

VCR

–

+

REF

–

TGL1

+

–

THDL

JP

FSC

FOSTA

REF

+

–

+

REF

–

REF

+

–

2.5V

R23

10K

R24 47K

IC3

M56748FP

REF

TO

GEN

+

REF

–

+

GEN

AGND

FE–

FEFAFA–

0V

2.5V

2.4V

2.5V

C13

330P

R26

82K

C14

0.01

R25

1.5K

0V

36

0V

35

0V

34 33

2.5V 32

2.5V 31

1.8V 30

1.8V 29

0V

28

0V 0V

27

0V

26

2V

25

2V

24

2.5V

23

2.5V

22

2.5V

21 20

4.7V

FOCUS/TRACKING/SPIN/SLIDE DRIVER

19

0.7V

C31

220/6.3

1V

2.5V

VR

LF2

+

–

REF

+

DEF

– –

+

HFL

+

DRF

–

IC1

LA9241M

SERVO AMP.

VCC +

– +

–

REF

GL

FSTA

S.Q.R

THD

+

FE1

REF

–

+

REF

SP–

SPG

SPI

SP

2.5V

R29 56K

R28 10K

C16

0.0047

R31

R27

1.2K

39K

R48 10K

+B

C30

0.1/50

2.5V

4.8V0V0V4V4V

4.8V

FSS

REF1

VCC2

2

EFBAL FOSTA TOSTA 2FREQ

LASER FSTA

8/12CM SLOF

REF

+

REF

+

JP

–

10

REF

SLEO

SPO

2.5V

C17

0.001

R30

6.8K

C18

0.47/50

–

R33

1.2K

C20

DRF

REF

47/16

R32 10K

CE

JPCLO

OR

C84

0.001

CV– CV+

JP– JP+

SLOF

R34 22K

DAT

LATOH

SLOF

C19

1/50

TE

C5

0.033 C6

0.033

2.4V

2.5V

2.4V

2.5V

2.4V

2.5V

R17 33K

R19

R1 22

FIN2

1

FIN1

2

E

3

F

4

TB

5

TE–

6

TE

7

2.5V TESI

8

2.5V SCI

9

TH

10

11

TD–

12

TD

13

JP

14

TO

15

FD

16

R18

C11

15K

0.1

1K

1 2 3 4 5 6 7 8 9

10 11 12 13 14 15 16

17 18

2.4V

0V

49505152535455565758596061626364

CL

CLK

FSC

CE

REF

CL

3

REF

RF

4

5

+

–

+

–

SL–

SLD

2.2V

2.5V

SL+

2.2V

DEF

SLOF

TOFF

C21

TBC

DGND

-

+

SLC

RFS–

–

+

RFSM CV+

CV–

HFL TES

TGL

JP+

JP–

0V

0.0033

R35 220K

R45

4.7K

0V

48

C29

4.7/50

C28

HF TP1

R40

5.6K

C24

2.2P

C27

0.001

C26

0.033

R41 47K

C25 27P

R43 56K

R38 470

0.1

R44 33K

R42 47K

R3 1K

47

2.5V

46

0V

45

2.4V

SLI

44

43

2.5V

2.4V

42

41

1.5V 0V

40

0V

39

4.8V

38

0V

37

0V

36

4.8V

35

4.8V

34

0V

33

6

R36 220K

7

R37

C35

82K

1/50

D1 1SS1

D4 RL104A

D3

RL104A

D2

RL104A

G

CD MOTOR PWB-E

H

• NOTES ON SCHEMATIC DIAGRAM can be found on page 15.

1

23456

Figure 20 SCHEMATIC DIAGRAM (1/10)

– 20 –

CNP12

WRQ(DSP)

RWC(DSP)

12