Sony SCD-XB770 Service manual

SCD-XB770

SERVICE MANUAL

Ver 1.0 2001.04

Photo: Silver type

SPECIFICATIONS

AEP Model

UK Model

Model Name Using Similar Mechanism NEW CD Mechanism Type CDM66B-DVBU6 Base Unit Name DVBU-6 Optical Pick-up Name KHM-230AAA

When a super audio CD is played

Playing frequency range 2 Hz to 100 kHz Frequency response 2 Hz to 50 kHz (–3 dB) Dynamic range 104 dB or more

Total harmonic distortion rate

Wow and flutter Value of measurable limit (±0.001 %

When a CD is played

Frequency response 2 Hz to 20 kHz Dynamic range 99 dB or more Total harmonic distortion rate

Wow and flutter Value of measurable limit (±0.001 %

Output connector

ANALOG OUT

DIGITAL (CD) OUT OPTICAL*

DIGITAL (CD) OUT COAXIAL*

PHONES

*Output only the audio signals of the CD

Jack type

Phono jacks

Square optical output connector

Coaxial output connector

Stereo phone jack

0.0018 % or less

W. PEAK) or less

0.002 % or less

W. PEAK) or less

Output level

2 Vrms (at 50 kilohms)

–18 dBm

0.5 Vp-p

10 mW

Load impedance

Over 10 kilohms

Light emitting wave length:

( )

660 nm

75 ohms

32 ohms

General

Laser radiant power: 5.47 uW at 650 nm

*These output is the value measured at a distance of about 200mm from the objective lens surface on the optical pick-up.

Power requirements 230 V AC, 50/60 Hz Power consumption 25 W Dimensions (w/h/d) 430 × 111 × 283 mm incl. projecting

parts

Mass (approx.) 5.8 kg

Supplied accessories

• Audio connecting cord

phono jack × 2 (Red and White) y phono jack × 2 (Red and White) (2) phono jack × 1 (Black) y phono jack × 1 (Black) (2)

• Remote commander RM-SX700 (1)

• R06 (size-AA) batteries (2)

Design and specifications are subject to change without notice.

SUPER AUDIO CD PLAYER

9-873-846-11 Sony Corporation

2000D0500-1 Home Audio Company C 2001.4 Shinagawa Tec Service Manual Production Group

SCD-XB770

SERVICING NOTES

NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT

The laser diode in the optical pick-up block may suffer electrostatic break-down because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic break-down and also use the procedure in the printed matter which is included in the repair parts. The flexible board is easily damaged and should be handled with care.

NOTES ON LASER DIODE EMISSION CHECK

The laser beam on this model is concentrated so as to be focused on the disc reflective surface by the objective lens in the optical pick-up block. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objecti ve lens.

CLEANING OF OPTICAL PICK-UP LENS

In cleaning the lens of optical pick-up, use the air blower. Never use a cotton swab for cleaning the lens of optical pick-up, which otherwise causes a trouble.

SCD-XB770

HOW TO OPEN THE TRAY WHEN POWER SWITCH TURNS OFF

tray

A

cam (66)

tapering driver

1

Insert a tapering driver (3 mm in diameter) in the hole at the bottom of the unit, turn the cam (66) fully in the direction of arrow A.

3

SCD-XB770

DISPLAY BOARD SERVICE POSITION

In checking the DISPLAY board, prepare jig (extension cable J-8000-024-A : 1.00 mm Pitch, 12 cores, Length 300 mm.)

MAIN board

CN706

DISPLAY board

CN801

Note: Follow the assembly procedure in the numerical order given.

INSTALLATION OF THE TRANS BOARD

Note : Solder the TRANS board after installing power transformers (T901, T902)

to the chassis. (To prevent the TRANS board from being cracked.)

3

four screws (PTTWH3

×

6)

4

Connect jig (extension cable J-8000-024-A) to the DISPLAY board (CN801) and MAIN board (CN706).

5

Solder seventeen portions.

four screws

3

(PTTWH3

×

6)

2

power transformer (T902)

1

power transformer (T901)

4

SECTION 2

Front Panel Parts Descriptions

GENERAL

SCD-XB770

This section is extracted from instruction manual.

POWER

PHONES

PHONE LEVEL

MIN MAX

TIME/TEXT SACD/CD

MENU MULTI/2CH

1 POWER switch (14)

Press to turn on the player.

2 TIME/TEXT button (15)

Each time you press the button, the playing time of the track, the total remaining time on the disc, or TEXT information appears in the display.

3 SACD/CD button (12)

Each time you press the button, ”SACD“ or ”CD“ appears in the display. Select the type of CD you want to play.

4 Disc tray (14)

Press A OPEN/CLOSE to open/close the disc tray.

Multi-channel indicator

5

Turns on when you turn on the player, or when the Multi-channel Super Audio CD is loaded and select the Multi-channel playback area by pressing MULTI/ 2CH.

6 A OPEN/CLOSE button (14)

Press to open the disc tray

.

7 H button (14)

Press to start play.

8 X button (14)

Press to pause play.

9 x button (14)

Press to stop play.

OPEN CLOSE

AMS

PUSH ENTER

0 l AMS L dial (AMS: Automatic Music Sensor)

(13)

When you turn the l AMS L dial counterclockwise by one click, you go back to the preceding track; when you turn the l AMS L dial clockwise by one click, you go to the succeeding track.

qa m/M buttons (18)

Press to locate a portion you want to play within a track.

qs Display window (15)

Shows various information.

qd MULTI/2CH button (12)

Press to select the playback area when the 2 channel + Multi-channel Super Audio CD (page 13) is loaded.

qf MENU (13)

Press to enter the menu.

qg PHONES LEVEL

Adjust the headphones volume.

qh PHONES

Connect the headphones. During playback of a Multi-channel Super Audio CD,

the same signal that is output from the ANALOG

5.1CH FRONT L/R jacks is output from the PHONES jack.

Rear Panel Parts Descriptions

ANALOG

2CH OUT 5.1CH OUT OUT

FRONT COAXIAL OPTICALSURR CENTER

L

R

1 ANALOG 2CH OUT L/R jacks (6)

Connect to an audio component (stereo/2 channel) using the audio connecting cord.

2 ANALOG 5.1CH OUT jacks (5)

Connect to an amplifier equipped with the 5.1CH input jacks (Multi-channel amplifier, AV amplifier, etc.) using the audio connecting cords.

3 DIGITAL (CD) OUT COAXIAL connector (7)

Connect to an audio component using the coaxial digital cable.

4 DIGITAL (CD) OUT OPTICAL connector (7)

Connect to an audio component using an optical digital cable.

DIGITAL(CD)

L

SUB

R

WOOFER

Note

Only the audio signals of the CD can be output from the DIGITAL (CD) OUT connectors shown in 3 and 4. Those of the Super Audio CD cannot be output through DIGITAL (CD) OUT.

5

SCD-XB770

Remote Parts Descriptions

1 CONTINUE button (20)

Press to resume normal play from Shuffle Play or Programme Play.

SHUFFLE button (20)

Press to select Shuffle Play.

PROGRAM button (21)

Press to select Programme Play.

2 DISPLAY MODE button (16)

Press to turn off the information.

3 TIME/TEXT button (15)

Each time you press the button, the playing time of the track, the total remaining time on the disc, or TEXT information appears in the display.

4 Number buttons (18)

Press to enter the track numbers.

5

i

10 button (18)

Press to locate a track numbered over 10.

6 REPEAT button (19)

Press repeatedly to play all tracks or only one track on the disc.

7 AyB button (20)

Press to select Repeat A-B Play.

8 H button (14)

Press to start play.

X button (14)

Press to pause play .

x button (14)

Press to stop play.

9 AMS ./> (AMS: Automatic Music Sensor)

buttons (18)

Press to locate a specific track.

0 m/M buttons (18)

Press to locate a portion you want to play within a track.

qa INDEX >/. buttons (18)

Press to locate a specific point marked with an index signal when you play a disc that has index signals.

qs SACD/CD button (12)

Each time you press the button, ”SACD“ or ”CD“ appears in the display. Select the type of CD you want to play.

qd MULTI/2CH button (12)

Press to select the playback ar ea when the 2 channel + Multi-channel Super Audio CD (page 13) is loaded.

qf ENTER button (24)

Press to decide the selection.

qg CLEAR button (21)

Press to delete a programmed track number.

qh LEVEL ADJ button (24)

Press to adjust the output level balance for the Multichannel management function (page 22).

CHECK button (21)

qj

Press to check the programmed order.

PLAY MODE

CONTINUE SHUFFLE

DISPLAY/

MODE

TIME/TEXT

PROGRAM

SACD/CD

MULTI/2CH

123 456 78

>10 ENTER

REPEAT

9

10/0

CLEAR

CHECK

LEVEL

BA

ADJ

AMS

INDEX

11

6

Compatible Disc Types

SCD-XB770

You can play the following discs with this player. Depending on the type of disc to be played, select the appropriate indicator by pressing SACD/CD or MULTI/ 2CH (pages 14).

Classification by the layer configuration

Super Audio CD (single layer disc)

This disc consists of a single HD (high density) layer. When you play this disc, the player is set to the Super Audio CD playback mode automatically.

HD (Super Audio CD) layer

Super Audio CD (dual layer disc)

This disc consists of dual HD layers and is capable of extended play over long periods. When you play this disc, the player is set to the Super Audio CD playback mode automatically. Also, as the dual layer disc consists of dual HD layers on one side only, it is not necessary to turn the disc over.

HD (Super Audio CD) layer

Conventional CD

This disc is the standard format. When you play this disc, the player is set to the Conventional CD playback mode automatically.

CD layer

Super Audio CD + CD (Hybrid disc)

This disc consists of an HD layer and a CD layer. Press SACD/CD to select the layer you want to listen to. Also, as the dual layers are on one side, it is not necessary to turn the disc over.You can play the CD layer using a conventional CD player.

CD layer

HD (Super Audio CD) layer

Classification by the channel configuration of the Super Audio CD

2 channel Super Audio CD

This disc consists of the 2 channel playback area. When you play this disc, the player is set to the 2 channel playback mode automatically.

2 channel playback area

Multi-channel Super Audio CD

This disc consists of the multi-channel playback area. When you play this disc, the player is set to the multichannel playback mode automatically.

Multi-channel playback area

2 channel + Multi-channel Super Audio CD

This disc consists of the 2 channel playback area and the multi-channel playback area. Press MULTI/2CH to select the playback area you want to listen to.

2 channel playback area

Multi-channel playback area

You can select the default playback area (2 channel playback or multi-channel playback area).

1

During stop mode, press MENU.

2

Turn l AMS L until “M/2CH SELECT” appears in the display .

3

Press l AMS L.

The current playback area appears.

4

Turnl AMS L to select desired playback area, then press l AMS L.

Incompatible Discs

This player cannot play the following discs. If you try to play them, the error message “TOC Error” or “NO DISC” will appear or there will be no sound.

• CD-ROM

• DVD, etc.

7

SCD-XB770

• This set can be disassembled in the order shown below.

3-1. DISASSEMBLY FLOW

SET

3-2. COVER

(Page 9)

SECTION 3

DISASSEMBLY

3-3. FRONT PANEL SECTION

(Page 9)

3-4. AUDIO BOARD,

MAIN BOARD (Page 10)

3-5. MECHANISM DECK

(CDM66B-DVBU6) (Page 10)

3-6. BASE UNIT

(DVBU-6) (Page 11)

8

Note: Follow the disassembly procedure in the numerical order given.

)

3-2. COVER

2

two flat head screws (TP)

2

two flat head screws (TP)

4

two washers (DIA. 3.2)

5

two washers (P)

3

cover

SCD-XB770

1

two screws

2

two flat head screws (TP)

4

two washers (DIA. 3.2

3-3. FRONT PANEL SECTION

4

7

front panel section

1

Pull out the tray. (Refer to page 3, HOW TO OPEN THE TRA Y WHEN POWER SWITCH TURNS OFF.)

2

loading panel assy

connector (CN992)

6

two claws

6

two claws

4

two connector (CN305, 905)

3

wire (flat type) (12 core) (CN706)

5

seven screws (BV/RING)

9

SCD-XB770

)

3-4. AUDIO BOARD, MAIN BOARD

8

wire (flat type) (30 core) (CN708)

9

connector (CN703)

0

screw (BVTT3

×

6)

qa

wiring stopper

qs

MAIN board

9

two connectors (CN704, 707)

1

two wires (flat type) (19 core) (CN302, 303)

wire (flat type) (12 core) (CN706)

2

four connectors



(CN301, 304, 305, 306)

5

two washers (DIA. 3.6)

0

three screws (BVTT3

6

PC board holder

7

AUDIO board

4

screw (BVTT3

×

6)

3

×

6)

five screws (BVT/RING)

3-5. MECHANISM DECK (CDM66B-DVBU6)

1

Pull out the tray. (Refer to page 3, HOW TO OPEN THE TRAY WHEN POWER SWITCH TURNS OFF.)

2

loading panel assy

3

Push the tray.

6

three screws (BVTT3

×

8)

7

mechanism deck (CDM66B-DVBU6)

4

wire (flat type) (30 core (CN708)

10

5

connector (CN151)

3-6. BASE UNIT (DVBU-6)

– BOTTOM VIEW –

cam (66)

base unit (DVBU-6)

SCD-XB770

2

1

screw (DIA. 12), floating

3

base unit (DVBU-6)

11

SCD-XB770

MEMO

12

SECTION 4

d

DIAGRAMS

SCD-XB770

4-1. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS

Note on Printed Wiring Board:

• X : parts extracted from the component side.

• Y : parts extracted from the conductor side.

• : Pattern from the side which enables seeing. (The other layers' patterns are not indicated.)

Caution: Pattern face side: Parts on the pattern face side seen from (Conductor Side) the pattern face are indicated. Parts face side: Parts on the parts face side seen from (Component Side) the parts face are indicated.

• Main board is multi-layer printed board. However, the patterns of inter mediate-layer have not been included in diagram.

• Indication of transistor

C Q

B

E

These are omitted.

Note on Schematic Diagram:

• All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums.

• All resistors are in Ω and 1/ specified.

f

•

• 5 : fusible resistor.

• C : panel designation.

Note: The components identified by mark 0 or dotted line

• A : B+ Line.

• B : B– Line.

• Voltages and waveforms are dc with respect to ground

• V oltages are taken with a VOM (Input impedance 10 MΩ).

• Waveforms are taken with a oscilloscope.

• Circled numbers refer to waveforms.

• Signal path.

: internal component.

with mark 0 are critical for safety. Replace only with part number specified.

under no-signal conditions. no mark : SACD PLAY ( ) : CD PLAY

Voltage var iations may be noted due to normal production tolerances.

J : SACD PLAY c : CD PLAY (ANALOG OUT) I : CD PLAY (DIGITAL OUT)

: Impossible to measure

∗

4

W or less unless otherwise

• Circuit Boards Location

AC SW board

HP board

KEY board

DISPLAY board

TRANS board

POWER board

LOADING board

RF board

AUDIO boar

MAIN board

1313

SCD-XB770

4-2. SCHEMATIC DIAGRAM – RF Board – • See page 30 for Waveforms. • See page 33 for IC Block Diagram.

C041

C032

0.1

SACD/CD RF AMP,

FOCUS/TRACKING

C025

ERROR AMP

IC001

CXD1881R

0.1

R016

R018

C039

0.1

N O D L

1k

0.01

C040

0.01

R

IR M

DTC144EKA-

B+ SWITCH

D L _ D C

C036

0.1

1000p

C045

330p

C044

C042

C043

0.033

D O M V

Q005

T146

D002

R003

1SS352

33k

-TPH3

(SPINDLE)

(SLED)

(LIMIT)

C026

0.01

C017 C021

C011

C010

C009

R097

33k

D L _ D V D

22p 22p

22p

C018

C013

5600p

2200p

C008

2200p

C016 180p

3333 2200p

R092

0

D001

1SS352

-TPH3

22p

C020

C023R015R093 C001

100

6.3V

C015

10

C030

22

10V

R017

470

CN003

CN002

25P

6P

CD_LD

CD_LDGND

CD_VR

CD_PD

VMOD

DVD_LD

DVD_VR

DVD_LDGND

DVD_PD

TRK+

TRK-

FCS-

FCS+

A

D

E

C

GND

H

VC

RF

F

G

VCC

B

M3

M2

S1

SP+

SP-

SD+

SD-

LIM_SW

D3V

LIM_SW

CD_LD

R001

0

CD_PD

VMOD

RFP

DVD_LD

R002

100

DVD_PD

TD-

TD+

FD-

FD+

C004

0.1

C006

0.1

SP+

SP-

SD+

SD-

D3V

C012

5600p

A

B

C

D

A

D

E

C

H

RFP

F

G

B

CD_F

CD_E

DVD_PD

CD_PD

Q001

2SB1121-ST-TD

AUTOMATIC

POWER CONTROL

(FOR SACD)

JL081

Q002

2SB1121-ST-TD

B+ SWITCH

D O M V

C031

0.1

C027

0.1

R091

0

C007 C024

R098C022

10 0.01

33k1000p

CN005

30P

MIRR

VMOD

R022

12k

F

E

F

E

N

I

T

F

R

E

R

_

/P

A

SD

FE

LK

T

C

A D

R025

0

R024

0

R023

C048

0.047

R035

JL006

JL003

JL002

JL001

C047

0.1

C046

0.1

R021

10M

C038

C002

100

2200p

6.3V

R094R019

3333

Q003

2SB1121-ST-TD

AUTOMATIC

POWER CONTROL

R090

(FOR CD)

0

C037

C029

10

1000p

0

47k

R029

R046 R036

SUMMING AMP,

PI ERROR AMP,

AVC BUFFER

IC004

C095

0.1

100 10k

C060

0.1

PI

C051

0.1

C003

0.1

NJM3403AV(TE2)

C055

C052

47

0.1

6.3

C028

47

6.3

R020

470

C090

1

C050

22

10V

R044

8.2k

C094

22

10V

C064

0.1

R066

R065

10k

R084

10k

R087

10k

R086

10k

R085

10k

E

R082

F

E

_

D

F

C

G

CD

JL053

FE/PI

PI

JL052

TE

FE

SDEN

DATA_RF

CLK_RF

LDON

FD-

FD+

TD-

TD+

SD-

SD+

SP-

SP+

D3V

JL051

LIM_SW

10k

R083

H

AGND

RFAC

AGND

AVC

MIRR

VMOD

DFCT

FE/PI

PI

TE

FE

A5V

SDEN

DATA_RF

CLK_RF

LDON

A3V

FD-

FD+

TD-

TD+

SD-

SD+

SP-

SP+

D3V

SA/CD

LIM_SW

(Page 18)

1414

4-3. PRINTED WIRING BOARDS – RF/LOADING Boards – • See page 13 for Circuit Boards Location.

1 2 3 4 5 6 7 8

M3

M

M2

(SLED)S1(LIMIT)

M

OPTICAL PICK-UP

BLOCK

KHM-230AAA

(SPINDLE)

RF BOARD

(COMPONENT SIDE)

A

SCD-XB770

B

C

D

A

MAIN BOARD CN708

(Page 16)

RF BOARD

(CONDUCTOR SIDE)

32 17

33

48

49 64

E

16

1

E

1-680-791-

11

(11)

LOADING BOARD

S152

LOADING

IN

11

1-645-721-

(21)

K

MAIN

BOARD

CN703

(Page 16)

CN151

5

1

S151

LOADING

IN

M

M151

(LOADING)

11

1-680-791-

(11)

• Semiconductor Location

Ref. No. Location

D001 D-4 D002 D-4

IC001 B-3 IC004 D-4

Q001 B-4 Q002 B-5 Q003 B-4 Q005 B-5

1515

SCD-XB770

4-4. PRINTED WIRING BOARD – MAIN Board (Component Side) – • See page 13 for Circuit Boards Location.

• Semiconductor Location

Ref. No. Location

IC503 H-4 IC509 C-3 IC701 C-6 IC703 A-7 IC801 C-9 IC803 G-9 IC814 D-8 IC901 G-6

1 2 3 4 5 6 7 8 9 10 11

MAIN BOARD

A

(COMPONENT SIDE)

C870

B

C

D

54

13

E

F

A

RF

BOARD

CN005

(Page 15)

FOR

RS-232C

15

G

H

1

I

5

K

LOADING

BOARD

CN151

(Page 15)

J

11

1-681-018-

K

E

POWER BOARD CN904

(Page 28) (Page 25) (Page 25) (Page 26) (Page 25)

C

AUDIO

BOARD

CN303

B

AUDIO

BOARD

CN304

F

DISPLAY

BOARD CN801

D

AUDIO BOARD CN302

1616

(11)

4-5. PRINTED WIRING BOARD – MAIN Board (Conductor Side) – • See page 13 for Circuit Boards Location.

SCD-XB770

1 2 3 4 5 6 7 8 9 10

MAIN BOARD

(CONDUCTOR SIDE)

A

• Semiconductor Location

Ref. No. Location

D903 A-4 D904 A-2

IC502 F-9 IC504 G-9 IC512 H-10 IC702 E-3 IC706 B-4

B

IC708 B-6 IC802 H-5 IC808 C-3 IC811 E-5 IC812 E-4 IC813 D-4 IC902 G-6

C

IC903 G-4 IC905 I-9

Q701 J-7 Q702 J-7

D

E

2

3

1

F

48 33

49

32

31

G

64

116

17

2

H

I

J

E

11

1-681-018-

(11)

1717

SCD-XB770

4-6. SCHEMATIC DIAGRAM – MAIN (1/5)/LOADING Boards – • See page 30 for Waveforms. • See page 33 for IC Block Diagram.

TP501

(AGND)

C592

10

10V

C516

DATA_RF

CLK_RF

LDON

SA/CD

LIM_SW

R501

10k

0.1

C

VC

WAVRB BUFFER,

DRVC BUFFER

R1027

68k

2 E

-T M

3

A

0

4

5

0 4

IC

3 M

J N

TE

MDP

WAVRB

FOK

LOCK

R565

10k

R568

10k

TP509

(DFCT)

TP508 (FOK)

TP507

(LOCK)

C545

10 10V

C543

SFDR

SRDR

TFDR

TRDR

FFDR

FRDR

R549

0

R561

1k

C534 C535

10000p 2200p

FE

0.1

C588

2200p

C589

2200p

C590

1000p

R560

1k

R558

47k

R562

1k

JL566

JL565

JL564

JL563

JL562

JL560

1k

R655

JL559

1k

R656

JL558

2.2k

R657

JL557

2.2k

R658

JL556

2.2k

R659

JL555

2.2k

R660

0

R578

0

R577

TP506 (FE)

JL554

JL553

TP505 (SE)

C533C531

2200p0.047

C544

0.1

R511 R510

3.3k 1.6k

MIRR

TP510TP514

(COUT)(MIRR)

JL569

JL561

TP513

(TE)

JL568

JL570

JL572

TP511

(PI)

C501

TP503

(DRVC)

1

R1026

10k

C518

1

0.1

k 0

V

2

0

7

2

1

5 C

0

3

1

5 R

7 1 5 C

GND

k 0 2 2

9 2 5 R

C591

C513

0.1

JL546

C519

1

R522

10

10V

0

RFAC

MIRR

VMOD

DFCT

PI

TE

FE

SDEN

0 3

0 5 R

7 4 5 L J

) C V

(A

4 0 5 P T

FE

TE

IN_SW

PI

RFAC

R502

10k

OUT_SW

R654C942

1k0.1

S151

(LOADING OUT)

S152

(LOADING IN)

M151

(LOADING)

(Page 14)

OUT_SW

IN_SW

GND

LOAD+

LOAD-

CN708

30P

AGND

RFAC

AGND

AVC

MIRR

VMOD

DFCT

FE/PI

PI

TE

FE

A5V

SDEN

DATA_RF

CLK_RF

LDON

A3V

FD-

FD+

TD-

TD+

SD-

SD+

SP-

SP+

D3V

SA/CD

LIM_SW

CN151

CN703

5P

OUT_SW

IN_SW

GND

LOAD+

LOAD-

CL1062

CL1063

CL1064

CL1065

CL1066

CL1067

CL1068

CL1069

CL1070

CL1071

CL1072

CL1073

CL1074

CL1075

CL1076

CL1077

CL1078

CL1079

CL1080

CL1081

CL1082

CL1083

CL1084

CL1085

CL1086

CL1087

CL1088

CL1089

CL1090

CL1093

CL1091

LOAD-

FD-

FD+

TD-

TD+

SD-

SD+

SP-

SP+

R1018

22

2 9 0 1 L C

LOAD+

TP502

(DGND)

A5V

AGND

A3V

(Page 21)

D5V

DGND

D3V

DRVC

AVC

M12V

BCLK

MDAT

LRCK

DOUT

768FS

LOCK

FOK

MIRR

COUT

SCOR

GFS

SCLK

SENS

CLOK

XLAT

DATA

XRST_CD

SQCK

SQSO

MD2

MDP

RF_AC

SPIN

SPDA

TE

FE

FJMP1

FJMP2

SP_ERR

WAVRB

MGND

DSP_BUS

SPC970_BUS

ANALOG_BUS

)

3

2

WFCK

C2PO

0

CL502

(MNT3)

SCOR

8 7 5 L J

JL576

7 7

5 3 7

JL 5 L J

R584

33k

C547

0.1

T

5

N L C

(M

TP517 (WFCK)

CL505

(MNT0)

GFS

8 9 0 1 L C

)

6

K

1

C

5

F

P T

(R

CL504

(MNT1)

DIGITAL SIGNAL PROCESSOR,

DIGITAL SERVO PROCESSOR

IC509

CXD3068Q

3

1

8

5

JL

k 0 1

8

k

8

0

5

0

R

1 3

9 5 R

C551

0.47

C548

0.01

C502

0.1

7 8 5 L J

5

9

8

5

JL

p 0 0 0 0 1

3 5 5 C

XLAT

CLOK

SCLK

SENS

1

3

5

6

9

5

L

JL

J

4

0

2

9

5

k

L

0

JL

J

1 8

k

0

1

6

R 4 0 6

R

C559

0.1

5

0

1

6

0

3

5

k

0

.0

C

6

.3

0 R

3

C556 C561

10 10V 0.1

GSCOR

C2PO

WFCK

DATA

MUTE_CD

XRST_CD

8

0

2

9

0

5

6

0.1

L

J

JL603

1 0 6

9

7

R618

9

JL

5

470k

L

J

R617

1M

3

5

3

p

1

M

6

0

.1

6

1

5

0

C

R

C

1

FL502

C568C567

10

10V

JL616

JL615

JL614

JL613

JL612

CL508

CL507

CL506

JL611

JL610

R619

0

JL609

JL608

JL607

JL606

JL605

JL604

C570

10

10V

C569

0.1

FL501

C587

0.1

EXCK

SBSO

SQCK

SQSO

768FS

R628

0

BCLK

R627

0

MDAT

R626

0

LRCK

R625

330

DOUT

MD2

R621

0

EXCK

SBSO

SA/CD

CLK_RF

DATA_RF

SDEN

LDON

LOAD_IN

LOAD_OUT

IN_SW

OUT_SW

MUTE_2D

MUTE_LOAD

SP_ON MUTE_CDA5V

VMOD

LIM_SW

GSCOR

CL501

COUT

(GND)

4

1

7

5

L

J

RF_AC

(Page

21)

(Page 19)

TFDR

TRDR

FFDR

FRDR

FJMP2

JL519 JL520

R607

4.7k

R602

4.7k

R596 R586

00

R592

4.7k

R595

4.7k

FJMP1

SPIN

C527

R508

SP_ERR

MUTE_2D

JL521

R534C536

3.3k0.47

C562

R611

R601

C558

R524

680p

10k

22k

680p

R555C542

3.3k0.47

R591C550

2.7k680p

C506 R513

R599C555

2.7k680p

0.1 10

C509 R516

0.1 10

C510

0.1

C511

0.1

R520

0

R518

10

R523

10

TD+

TD-

FD+

FD-

FOCUS/TRACKING

COIL DRIVE,

SLED MOTOR DRIVE

IC502

BA5983FP

C528

10

10V

2.2k

R512

0

C549

R509

0.1

R576

0

JL516

JL517

C526

0.1

10k

R590

10k

R505

4.7k

R506

R589

4.7k

10k

C554

0.1

+5V REGULATOR

µPC3905T-E1

IC504

OGI

33k

SFDR

SRDR

R594

33k

C520

22

16V

R507

3.3k

R597

R515

0

R572

10

0 1

3 7 5 R

C541C539

0.10.1

SD-

SD+

LOAD_IN

LOAD_OUT

MUTE_LOAD

JL528

R661

C525

0.1

LOAD- LOAD+

JL543JL542

R635

R582R581

010k10k

JL630

SPINDLE/

LOADING

MOTOR DRIVE

IC512

BA5912AFP-YE2

0

560p

R554

2.7k

R556

2.7k

C529 560p

JL637

R563 R644

10 10

C532

0.1

SPDA

JL617

JL618

R642 C577

R606

R632 10k

R634

6.8k

10

9

45

.1

6

55

0

R

0 3 5 C

SP+

33k 10000p

6.8k

1 4 6

JL

.1 0

3

C582

58 C

0.1

SP-

SP_ON

JL621

JL636

R598

0

C584

C579

22

16V0.1

1818

4-7. SCHEMATIC DIAGRAM – MAIN Board (2/5) – • See page 30 for Waveforms. • See page 33 for IC Block Diagram.

100k

R545

1500p

(Page 18)

ANALOG_BUS

SPC970_BUS

DSP_BUS

MDP

RF_AC

SPIN

FJMP1

FJMP2

SPDA

FE

TE

SP_ERR

WAVRB

768FS

GSCOR

EXCK

SBSO

WFCK

C2PO

BCLK

MDAT

LRCK

DOUT

DATA_RF

CLK_RF

SDEN

LDON

MIRR

LOCK

FOK

COUT

GFS

MUTE_CD

SENS

SCLK

DATA

XLAT

CLOK

MD2

SQSO

SCOR

SQCK

SA/CD

XRST_CD

SP_ON

VMOD

MUTE_2D

MUTE_LOAD

LOAD_IN

LOAD_OUT

IN_SW

OUT_SW

LIM_SW

C523

SPINDLE MOTOR

DRIVE

IC708(2/2)

C731

NJM3404AM-TE2

C780

10

10V

R761

2.2k

R750

R777

C729

10

10V

0.1

7

4

IC708(1/2)

C777

0.1

C781

10

10V

C772

0.1

R764

1M

C771

0.047

R759

R758

R757

R756

0

R766

0

R768

100

R776 C766

10k

0

NJM3404AM-TE2

1

R701 220k

8

6

5

R704 220k

FL702

C776

0.1

C773 R763 R769

0.47 8.2k 2.2k

R762

0

CL791R755

(C2PO)0

0 100p

MDIN

MDP

FL706

A5V

TP706

(SPIN)

SPIN

DRVC

AVC

FL703

D5V

D3V

DGND

A3V

FL704

AGND

C775

0.1

R765

22k

MDIN

R767

47k

C774

4700p

GSCOR

EXCK

SBSO

SCOR

WFCK

C2PO

BCLK

MDAT

LRCK

XRST_DVD

D0

D1

D2

D3

D4

R544 100k

(2/2)

R540

2

3

C521

1500p

R703

C779

10 10V

C770

0.1

22k

R770

0

0.1

C769

100k

R778

0.1

C768

10k

R541 100k

R538 100k

CL1008

100k

BUFFER

C778

0.1

C767

0.1

C765

0.1

CENTER VOLTAGE

NJM3404AM-TE2

TP705 (DVC)

C701

10

10V

C705

0.1

R702 100k

FL701

(1/2)

JL786

JL785

CL796

CL795

CL794

CL793

CL792

CL750

JL784

JL783

JL782

JL781

CL781

CL780

CL787 (BCK)

CL786

(MDATA)

CL785

(LRCK)

GENERATOR

IC703(2/2)

1

C702

10 10V

(2/2)

2

3

CL790

CL789

CL788

R705

100k

R706 100k

C704

C798C799

0.10.01

C706

0.1

1

M 1

8 0 7 R

C752

0.1

D5

D6

TP704

C709

(AGND)

0.1

C708C707

1000p33p

R709

68k

R707

100

C764

0.1

A0

D7

C712

R712

220p

10k

C711

R710

0.01

10k

CL703

R711

2.2k

A1

A4

A2

A3

RF_AC

R713

10k

C713

0.1

R714

10k

CL779

C763

0.1

A7

A6

A5

APDO

R729

0

TP702TP703 (APDQ)(RFAC)

R725

C715 3300p

C714

1

XHRD

1.8k

R726 100k

R724

6

C720C703

0.111k1k

R718

10k

7 0 7 L C

IC701

CXD1882R-1

R745

47k

8

5

7

4

CL701

IC703(1/2)

NJM3404AM-TE2

INTEGRATOR

R780

0

0 1

.1

7

0

L

C 8 1 7 C

6 7 7 L J

8 7 7 L C

R744

22

7 7 7 L

SDEF

C

SD7

47k

R746

R721

33k

R720

C716

0.47

1 .0 0

k

7

0

1

0

7

1

C

7 1

R781

7

0

R

0 0

1

7

6

4

1

7

C

R

k 1

9 1 7 R

SACD DECODER

XINIT1

XINIT0

XCS1882

XHWR

D3V

JIT

TP701 (JIT)

R727

3.3k

R728C721

C728

10k1

0.1

(1/2)

C722

C723

0.1

BDB

BDC

BDD

BDE

BDF

8

5

6

7

1

7

L J

JL

JL774 JL773 JL772 JL771 JL769JL770

0.1

C762 C761

5 7 7

CL776

L C

SD5

SD6

BD9

BDA

9

0

1

2

7

7 L

JL

J

0.1

CL773

4 7 7 L C

SD4

SD3

D903

1SS367

D-RAM

IC706

GM71VS18163CLT-6

FL705

BD8

XCAS

2

3

2

7

JL

C760

0.1

SCD-XB770

A1

A2

BDE

BDF

BDC

BDA

BDD

BDB

BD9

BD8

JL1080

.

D

GN

I/O12

I/O13

I/O14

I/O15

3

D

I/O

VD

I/O2

I/O1

I/O0

BD3

BD2

BD1

BD0

C727

10

10V

CL918 (RFD)

MA9

XMOE

4 2 7

JL

SD2

MA8

7

8

1

2

1

7

L

C

JL726

2 7

CL771

7 L C

CL770

SD0

SD1

8

10

.C N

I/O

I/O9

GND

I/O

I/O11

4

.C. N

I/O7

I/O6

I/O5

I/O

VDD

5 7

10 L J

BD6

BD7

BD5

BD4

C725C724

0.10.1

CL1017

JL929

JL731

JL734

JL735

JL736

JL737

JL738

JL740

JL741

JL742

JL743

JL744

JL745

JL746

JL750

JL751

JL752

JL753

JL754

JL755

JL756

JL757

JL758

JL759

JL760

JL761

JL762

JL763

JL764

JL765

JL766

JL767

JL768

JL1088

JL777

XCAS

XMOE

JL1081

.C.

OE

N

CAS

LCAS

U

.C. N

N.C.

WERAS

7

76

7

0

0 1

WE

JL1

JL

RAS

R772

TP802

22

.1 0

0 3 7 C

MA7

MA6

MA5

MA4

MA3

MA2

MA1

MA0

R730

22

RAS

C740

0.1

R731

22

BD7

BD6

BD5

C741

0.1 BD4

BD3

BD2

BD1

BD0

R732

10k

C742

0.1

R733

10k

R734

10k

C743

0.1

R735

10k

R736

10k

R737

10k

R738

10k

R740

10k

C744 R741

0.1 22

C745

R742

0.12222

R743

MA5

MA6

MA7

MA4

MA8

MA9

D

A4

A5

A7

A6

A8

A9

.C. N

N.C.

9

78

7

0

10 L1 J

JL

MA0

GFS_V

GN

DD

3

2

1

V

A

A0

A

MA3

MA2

MA1

C726

0.1

A3

(Page 20)

WE

A4

XSRQ

XSHD

XDCK

XSAK

A5

A6

A7

A8

B

1

2

3

(Page 21)

B 4

1919

SCD-XB770

CL1043

CL1045

C861

L802

L803

C851

R859

C852

CN704

CL1094

CL1010

CL1018

CL1021

CL1023

JL919

CN701

CL1096

CL1095

CN702

R860

L801

C850

R858

IC811

R853

R855

R808

CL825

R854

FL808

C846 C847

CL880

CL1044

R982

R990

CL1041

CL1042

CL1040

CL1039

CL1038

CL1037

CL1036

CL1035

R983

CL1034

CL1033

CL1032

CL1031

CL1030

CL1048

CL1047

CL1046

CL1097

CL1029

C914

FL906

C913

C860

R851

JL699

C857

R826

R850

R849

R848

R821

R822

C855

JL687

JL689

JL691

JL685

JL683

JL681

R918

C951

JL675

JL678

CL800

R865JL670

JL671

C838

J

L

6

4

J

L

6

5

J

L

6

3

J

L

6

2

J

L

6

1

J

L

6

0

J

L

6

5

9

JL666

JL667

JL668

JL674

JL673

JL672

JL669

JL680

JL679

JL677

JL682

JL684

JL686

JL688

JL690

JL692

JL693

JL694

JL695

JL697

JL696

JL698

JL700

J

L

7

0

3

J

L

7

0

2

J

L

7

0

1

C866 R852

C858

FL811

R810

R803

C867

J

L

7

0

7

J

L

6

5

8

C818

R1015

J

L

6

5

7

J

L

6

5

6

J

L

6

5

J

L

6

5

4

J

L

6

5

3

J

L

6

5

2

J

L

6

5

1

J

L

6

5

0

J

L

6

4

9

J

L

6

4

8

J

L

6

4

7

J

L

7

9

2

J

L

7

9

3

J

L

7

9

5

J

L

7

9

4

C941

R1025

C842

R

8

2

R

8

3

R

8

4

R

8

6

R

8

7

R

8

R

8

9

R

8

5

IC808

C854

C865R842C815R870C871

JL805

J

L

8

0

4

J

L

8

0

2

J

L

7

9

6

J

L

7

9

8

J

L

7

9

7

J

L

7

9

J

L

8

0

JL801

J

L

6

4

6

J

L

6

4

5

J

L

6

4

J

L

6

4

3

J

L

8

4

8

J

L

8

4

6

J

L

8

4

5

J

L

8

4

J

L

8

4

3

J

L

8

4

2

R827

C839

C810R831

C807

R829R800

C808

R

8

3

9

R

8

2

8

C817

JL841

JL840

JL839

JL838

JL837

JL836

JL835

JL834

JL833

JL832

JL831

JL830

JL829

C819

R830

JL828

JL827

JL826

JL825

JL824

JL823

JL822

JL821

JL819

JL820

JL818

C

8

0

4

C

8

3

7

JL817

JL816

JL815

JL814

JL813

JL812

JL811

JL810

JL809

JL808

C813

C849

JL807

JL806

C843

IC702

C795

C796

C797

CL883

FL810D904

FL813

C809

C840

C800

C802

C803

FL807

FL812

C841

C848

IC814

C811

CL870

CL872

CL871

CL873

C812

IC801

IC813

IC812

J

L

1

0

8

2

J

L

1

0

8

3

CL885

R809

C870

R847

FB801

FB803

FB804

FB802

TP808

JL850

JL1071

JL847

JL849

JL676

R867

R866

C856

0.01

22p

680

22p

6P

19P

220

22p

680

SN74LVU04A

220

100

6.3V

0.1

22

10 10V 0.01

0.01

0

0.01

22

0.01

2.2

0.1

0

0.01

0.01 0

100

6.3V

0

0.01

22

1

0

0.01

1

0

k

1

0

k

1

0

k

1

0

k

1

0

k

1

0

k

1

0

k

1

0

k

MT48LC1M16A1TG

0.01

0.0110k0.0110k0.01

100

0.01

0.0133k

0.01

1004.7k

100p

4

.7

k

4

.7

k

0.01

4.7k

0

.0

1

0

.0

1

0.01

TA48M025F

100

6.3V

1

220

4V

1SS367

10

10V

10

10V

0.01

10

10V

0.01

10

10V

0.01

SN74AHCT1G08DCKR

0.01

CXD2752R

SN74LV245APWR

(WM-RF)

100

0.033

22

0

0.01

A1

A2

A3

A4

A5

A6

A7

A8

1

C

2

C

3

C

4

C

5

C

6

C

7

C

SD7

SD6

SD5

SD4

SD3

SD2

SD1

SD0

SH

R

RD

Y

X

M

S

LAT

XR

ST_D

SD

R

F_A

C

XSHD

SDCK

XSHD

XSAK

SDEF

D3

V

D

G

N

D

XDCK

S

H

R

M

U

T

A1IN

A1OUT

DOUT

AV0

AV1

AV2

AV3

AV4

AV5

AV6

AV7

SDEF

XSAK

SDEF

XSHD

SDCK

AV0

AV1

AV2

AV3

AV4

AV5

AV6

AV7

XSRQ

SA0

SA1

SA2

SA3

SA4

SA5

SA6

SA7

SA8

SA9

SA10

SA11

SCAS

SRAS

SWE

DCLK

DCKE

DQ0

DQ1

DQ2

DQ3

DQ4

DQ5

DQ6

D

Q

1

D

Q

2

D

Q

3

D

Q

4

D

Q

5

D

Q

6

D

Q

7

S

W

E

S

CAS

S

R

AS

S

A11

S

A10

S

A0

S

A1

S

A2

S

A3

S

A4

SA5

SA6

SA7

SA8

SA9

DCLK

D

CK

E

DQ7

W

P

K

W

RF

W

R

F

768FS

DSRS

DSLS

DSLF

DSC

DSR

DSL

AG

N

D

M

S

CK

M

S

D

ATI

M

S

D

ATO

W

PK

D3V

ISBTEST

LRCKO

MDATO

MDAT_SUBO

64FS

128FS

E128FSO

E64FSO

W

AV

RB

AMUTE

INIT

LATCH

DATA

SHIFT

MULTI

MODE

BCLK

256FS

D

Q

0

D3V

ZM

C

KI

DSAR

DSAL

DSASW

DSAC

DSARS

DSALS

DGND

GND

CDBCK

CDLRCK

SDATAR

SDATAL

GND

X

M

S

L

A

T

M

S

C

K

M

S

D

A

T

I

M

S

D

A

T

O

X

M

S

D

O

E

X

R

S

T

S

M

U

T

E

M

C

K

I

E

X

C

K

O

1

E

X

C

K

O

2

L

R

C

K

M

N

T

0

M

N

T

1

M

N

T

2

M

N

T

3

T

C

K

T

D

I

T

D

O

T

M

S

T

R

S

T

E

S

T

1

T

E

S

T

2

T

E

S

T

3

X

B

IT

S

U

P

D

T

0

S

U

P

D

T

1

S

U

P

D

T

2

S

U

P

D

T

3

S

U

P

D

T

4

S

U

P

D

T

5

SUPDT6

SUPDT7

BCKASL

BCKAI

BCKAO

PHREFI

PHREFO

ZDFL

DSAL

ZDFR

DSAR

ZDFC

DSAC

ZDFLFE

DSALFE

ZDFLS

DSALS

ZDFRS

DSARS

W

A

D

0

W

A

D

1

W

A

D

2

W

A

D

3

T

E

S

T

I

W

A

D

4

W

A

D

5

W

A

D

6

W

A

D

7

W

C

K

W

A

R

F

I

W

A

V

R

B

DCLK

DCKE

XWE

XCAS

XRAS

A11

A10

A9

A8

A7

A6

A5

A4

A3

A2

A1

A0

XSRQ

XSHD

SDCK

XSAK

SDEF

SD0

SD1

SD2

SD3

SD4

SD5

SD6

SD7

D

Q

7

DQ5

DQ4

D

Q

6

DQ3

DQ2

DQ1

DQ0

V

D

V

D

V

S

V

S

D

Q

0

D

Q

1

V

S

Q

D

Q

2

D

Q

3

V

D

Q

D

Q

4

D

Q

5

V

S

Q

D

Q

6

D

Q

7

V

D

Q

L

D

Q

M

WEC

A

S

R

A

S

C

S

A

1

0

/A

P

A

0

A

1

A

2

A

3

A

4

A

5

A

6

A

7

A

8

A

9

N

C

K

E

C

L

K

U

D

Q

M

N

C

/R

F

U

D

Q

8

D

Q

9

V

S

Q

D

Q

1

0

D

Q

1

V

D

Q

D

Q

1

2

D

Q

1

3

V

S

Q

D

Q

1

4

D

Q

1

5

A

1

-B

A

V

D

Q

SDATARS

SDATALS

GND

CDDATA

GND

INIT

LATCH

SHIFT

DATA

MODE

SDATALF

SDATAC

GND

MULTI

3.3VD

D/O

GND

CDDATA_SUB

GND

IN

G

OUT

G

V

D-RAM

+2.5V

REGULATOR

128FS

64FS

256FS

+3.3V-D

AMUTE

VDIO

V

S

IO

T

E

S

T

O

V

D

C

V

S

C

T

E

S

T

O

T

E

S

T

O

T

E

S

T

O

T

E

S

T

O

V

D

IO

F

R

A

M

E

V

S

IO

M

S

R

E

A

D

Y

V

D

C

V

S

C

XSUPAK

VSC

TESTO

TESTI

TESTO

VSDSD

VDDSD

VSDSD

VDDSD

TESTO

VSC

TESTO

TESTI

T

E

S

T

I

V

D

IO

T

E

S

T

O

T

E

S

T

O

T

E

S

T

O

V

S

C

T

E

S

T

O

T

E

S

T

I

T

E

S

T

I

T

E

S

T

I

V

D

C

T

E

S

T

I

T

E

S

T

I

T

E

S

T

I

T

E

S

T

I

T

E

S

T

I

T

E

S

T

I

V

S

IO

T

E

S

T

I

T

E

S

T

I

T

E

S

T

I

V

D

IO

V

S

C

V

D

C

T

E

S

T

I

W

A

V

D

W

A

V

D

W

A

V

S

W

A

V

S

VDIO

VSIO

V

S

IO

VDIO

TESTO

VSC

VDC

VSIO

VDIO

NC

VSIO

VDC

4-8. SCHEMATIC DIAGRAM – MAIN Board (3/5) – • See page 30 for Waveforms.

(Page

19)

(Page 22)

(Page

23)

(Page

23)

(Page

23)

2020

4-9. SCHEMATIC DIAGRAM – MAIN Board (4/5) – • See page 30 for Waveforms. • See page 33 for IC Block Diagram.

(Page 19)

1B

2B

3B

4B

SCD-XB770

3D

4D

5D

(Page 18)

(Page 29)

(Page 18)

(CHASSIS)

DRVC

DGND

MGND

M12V

AGND

E

TE

D

U

O M

AM

FL901

C901

10

C906

0.01

10V

C902

0.01

R931 R932

100 100

CL977

R958

R959

R962

JL1072

JL1073

10k

0

R949

R948

R947 CL970

R954

R960

10k

NC

VCC

NC

IN

R820C921R964

MD2

FJMP1

FJMP2

SENS

XCS_IO

XCS1882 TE

D0

D1

D2

D3

T_SENS

0.01

C920

D4

D5

D6

D7

XINIT0

XINIT1

RESET SIGNAL

GENERATOR

M51957BFP-600C

IC905

AGND

AVC

D3V

D5V

C790

47

FL750

CL761

CL763

CL762 CL992

CL765 CL995

CL991

CL993

CL996CL766

CL997CL767

16V

FB703

FB705

CL764 CL994

FB708

FB707

FL751

FL752

FL754

FL753

FB709

CL760

FB701

CL990

CN707

12P

NC

M+12V

M-GND

A-GND

D-GND

D+3.3V

A+3.3V

A-GND

D-GND

D+5V

A+5V

A3V

A5V

AVC

DRVC

D3V

D5V

DGND

FB704

FB706

C793C791

2204V100

6.3V

FB710

A5V

C792C794

100

220

6.3V

4V

A3V

CL976

CL975

15k

CL971

15k

0

CL978

10k

CL969

CL968

CL967

JL907

JL906

JL905

JL904

JL903

JL902

JL901

CL966

CL965

CL999

CL964

CL989

R961

1k

C

OUT

NC

JL1074

CL988

GND

C923

17.5k0.013.3k

TP901

0.01

C924

TA

TCH

A

HIFT

D

LA

S

22

R901

R902

R903

CL901

CL902

CL903

R970

0

R875

5.6k

CL962

CL961

CL960

R876

100

0

R943

R942

TA

IN

A1

DA

XLAT

IT

IN

22

R904

CL904

CL959

0

R973

T U

CO

A7

CL905

10k

R944

CL958

W

_S

IN

A6

CL906

10k

R945

CL957

W

T_S

OU

A5

CL907

CL956

R

IR M

4 A

CL908

CL955

0

R910

O S Q S

A3

CL909

CL954

R

SCO

A2

CL910

CL953

K C

SQ

R1020

CL951

10k

A0

A1

CL911

CL912

CPU

IC901

CXP973F064-203R

CL952

100

R941

R940

K

CLO

R

F

RD

W

R

H

_C

X

M

ATA_

R

D

R978

10k

22

R905

R914

CL979

CL913

CL914

CL915

CL916

100

R971

CL980

8.2k

X901

20MHz

C945

R1029

R1022

0.1

8.2k

C946C910

0.10.01

O

A

D

PD

AP

S

TXD

22

R907

CL917

CL950

100

R930

UT M R H

S

XD R

CL949

100

R929

T

SLA M

X

CL919

CL948

100

R928

Y D R R H S

1k

R951

CL920

CL947

ATO

SD M

F

K_R L C

CL921

CL946

100

R926

ATI

SD M

R912

10k

RXD

DGND

TXD

5V-D

10V-PWE

CN709

6D

7D

8D

9D

(Page 22)

10D

11D

(FOR RS-232C)

5P

R913

10k

R906

22

CL945

CK S

M

R1021

C916

0.01

R946 10k

EEPROM

IC903

BR24C02F-E2

CL923

0.22

C746

CL937

CL938

CL939

CL940

CL941

CL942

CL943

C905

0.01

R980

10k

CL944

R925

100

R1024

R939

100022

R1028

CL928

CL929

CL930

CL931

CL932

CL933

CL934

CL935

CL936

N O

LD

R991

0

R992

CL924

CL926

CL927

C904

0.01

R998

SP_ERR

0

R915

100

R824

0

C903

10

10V

JIT

R920R919

R921

R981

10k

FL908

R916

FE

1k

R804

10k

C936

10022

100

10k

R805

C937

1000p

R806

10k

C938

1000p

R807

10k

C939

1000p

C948

0.1

C949

0.1

C952

0.1

C953

0.1

LOCK

FOK

SCLK

GFS

C909

C908

100p

10000p

R917

1k

KEY3

KEY2

1000p

KEY1

KEY0

LED_DRV

GFS_V

IFREQ

SCK1

SOUT1

R975

10k

XDIS_IO

JL950

RXD

JL951

TXD

JL952

JL953

2121

Sony SCD-XB770 Service manual

TABLE OF CONTENTS

SERVICING NOTES

GENERAL

3-1. DISASSEMBLY FLOW

DISASSEMBLY

cover

front panel section

3-4. AUDIO BOARD, MAIN BOARD

mechanism deck (CDM66B-DVBU6)

base unit (DVBU-6)

DIAGRAMS

4-1. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS

4-8. SCHEMATIC DIAGRAM – MAIN Board (3/5) – • See page 30 for Waveforms.