Sony SCD-XE597 Service manual

SCD-XE597

SERVICE MANUAL

Ver. 1.3 2006.02

SPECIFICATIONS

AEP Model

UK Model

Model Name Using Similar Mechanism NEW CD Mechanism Type CDM66D-DVBU50 Optical Pick-up Name DBU-3

When a Super Audio CD is played

Playing frequency range 2 Hz to 100 kHz Frequency response 2 Hz to 40 kHz (–3 dB) Dynamic range 100 dB or more Total harmonic distortion rat e

Wow and flutter Value of measurable limit

When a CD is played

Frequency response 2 Hz to 20 kHz Dynamic range 96 dB or more Total harmonic distortion rat e

Wow and flutter Value of measurable limit

Output connector

Jack type Output

ANALOG

5.1CH OUT DIGITAL

(CD) OUT OPTICAL*

*Output only the audio signals of the CD

Phono jacks

Square optical output connector

0.0035 % or less

(±0.001 % W. PEAK) or less

0.0039 % or less

(±0.001 % W. PEAK) or less

level

2 Vrms (at 50 kilohms)

–18 dBm (Light

Load impedance

Over 10 kilohms

emitting wave length: 660 nm)

General

Laser Semiconductor laser

Power requirements 230 V AC, 50/60 Hz Power consumption 15 W Dimensions (w/h/d) 430 95 283 mm incl.

Mass (approx.) 3.1 kg

Supplied accessories

Audio connecting cord Red and White 2 (1) Remote commander RM-SX800 (1) Battery R6 (size-AA) (2)

Design and specifications are subject to change without notice.

(Super Audio CD: λ = 650 nm) (CD: λ = 780 nm) Emission duration: continuous

××

projecting parts

9-879-005-04

SUPER AUDIO CD PLAYER

Sony Corporation

Home Audio Division Published by Sony Techno Create Corporation

SCD-XE597

1. SERVICING NOTES ................................................ 3

2. GENERAL ................................................................... 4

3. DISASSEMBLY

3-1. Disassembly Flow ........................................................... 6

3-2. Cover ............................................................................... 6

3-3. MAIN Board.................................................................... 7

3-4. Loading Panel..................................................................7

3-5. Front Panel Section ......................................................... 8

3-6. KEY Board, DISPLAY Board ......................................... 8

3-7. CD Mechanism Deck (CDM66D-DVBU50) .................. 9

3-8. Base Unit (DVBU50) ...................................................... 9

3-9. RF Board, Pick-up Unit (DBU-3) ................................... 10

3-10. Belt (LD), LOADING Board, Motor (L) Assy................ 10

4. DIAGRAMS

4-1. Block Diagram ................................................................ 12

4-2. Printed Wiring Board — RF Section — ......................... 13

4-3. Schematic Diagram — RF Section — ........................... 14

4-4. Printed Wiring Board — MAIN Section — ................... 15

4-5. Schematic Diagram — MAIN Section (1/4) — ............ 16

4-6. Schematic Diagram — MAIN Section (2/4) — ............ 17

4-7. Schematic Diagram — MAIN Section (3/4) — ............ 18

4-8. Schematic Diagram — MAIN Section (4/4) — ............ 19

4-9. Printed Wiring Board — DISPLAY Section — ............ 20

4-10. Schematic Diagram — DISPLAY Section — ................ 21

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 pickup block. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objective lens.

CAUTION

Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.

This appliance is classified as a CLASS 1 LASER product. This label is located on the rear exterior.

5. TEST MODE ............................................................... 22

6. EXPLODED VIEWS

6-1. Main Section.................................................................... 23

6-2. Front Panel Section ......................................................... 24

6-3. CD Mechanism Deck ...................................................... 25

6-4. Base Unit (DVBU50) ...................................................... 26

7. ELECTRICAL PARTS LIST................................27

LASER DIODE AND FOCUS SEARCH OPERATION CHECK

Carry out the “S curve check” in “CD section adjustment” and check that the S curve waveform is output three times.

Notes on chip component replacement

• Never reuse a disconnected chip component.

• Notice that the minus side of a tantalum capacitor may be

damaged by heat.

Flexible Circuit Board Repairing

• Keep the temperature of the soldering iron around 270 °C

during repairing.

• Do not touch the soldering iron on the same conductor of the

circuit board (within 3 times).

• Be careful not to apply force on the conductor when soldering

or unsoldering.

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.

SECTION 1

SERVICING NOTES

SCD-XE597

HOW TO OPEN THE DISC TRAY WHEN POWER SWITCH TURNS OFF

Insert a tapering driver into the aperture of the unit bottom, and turn in the direction of arrow. Use a flat (-) head screwdriver to open the disc tray by manual operation. (Flat head screwdriver with nominal blade length of 3mm.) * To close the disc table, turn the driver in the reverse direction.

tapering driver

MODEL IDENTIFICATION – Back Panel –

Parts No.

MODEL Part No.

AEP Model 4-255-245-0[ ] UK Model 4-255-245-1[ ]

SCD-XE597

Front Panel

123 45 678

SECTION 2

GENERAL

This section is extracted from instruction manual.

;

A POWER switch (9) B SA-CD/CD button (5, 9)

Each time you press the button while playing back a hybrid disc, the layer to be played back switches between the SA - CD layer and the CD la yer.

C PLAY MODE button (13, 14)

Press to select the pl ay mo de .

D Disc tray (9) E MULTI CHANNEL DECODING indicator

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.

F A button (9) G x button (9, 14) H m/M buttons (12) I l AMS L dial

(AMS: Automatic Music Sensor) (8, 9, 10, 12, 14, 15, 16, 18)

J X button (9) K H button (9, 12, 13, 14) L Display window (10) M Remote sensor (6) N TIME/TEXT button (11)

Each time you press the button, the playing time of the track, the remaining time of the disc, or TEXT information appea r s in the display.

O MULTI/2CH button (5, 9)

Press to select the playback area when a disc with the 2 channel area and the multi-channel area (page 5) is loaded.

P MENU button (8, 9, 10, 12, 15, 16, 18)

Press to enter the menu. Press to exit from the menu and return to the normal display.

Remote

A CD1/ 2 (command mode ) switch (8)

Select the comman d mod e.

B CONTINUE button (13, 14)

Press to resume Continuous Play from Shuffle Play or Program Play.

SHUFFLE button (13) PROGRAM button (14)

C TI ME/TEXT button (11)

Each time you press the button, the playing time of the track, the remaining time of the disc, or TEXT information appe ars in the display.

D DISPLAY MODE button (12)

Press to turn the display information off or on.

E m/M buttons (12) F CLEAR button (14)

Press to delete a progra me d tr a ck number.

G LEVEL ADJ button (17)

Press to adjust the output level balance for the Multi-channel management fun ct ion ( pa g e 15).

H ENTER button (8, 9, 10, 12, 14, 15, 17, 18) I CHECK button (14)

Press to check the programed order.

J REPEAT button (13) K H button (9, 12, 13, 14)

X button (9) x button (9, 14)

L AMS ./> buttons

(AMS: Automatic Music Sensor) (8, 9, 10, 12, 14, 15, 17, 18)

M SA-CD/CD button (5, 9)

Each time you press the button while playing back a hybrid disc, the layer to be played back switches between the SA-CD layer and the CD layer.

N MUL TI/2CH button (5, 9)

Press to select the playback area when a disc with the 2 channel area and the multi-channel area (page 5) is loaded.

O DI SC SKIP +/– buttons*

Press to select the disc . *This button cannot be used in this player.

qf qd

q; 9

3 4

SCD-XE597

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

•The dotted square with arrow (

completed.

3-1. DISASSEMBLY FLOW

SET

) prompts you to move to the next job when all of the works within the dotted square ( ) are

SECTION 3

DISASSEMBLY

3-2.COVER

(Page 6)

3-3.MAIN BOARD

(Page 7)

3-5. FRONT PANEL SECTION

(Page 8)

3-6.KEY BOARD, DISPLAY BOARD

(Page 8)

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

3-4.LOADING PANEL

3-7.CD MECHANISM DECK

(CDM66D-DVBU50)

3-8.BASE UNIT (DVBU50)

3-9. RF BOARD,

PICK-UP UNIT (DBU-3)

3-2. COVER

two screws (case 3)

(Page 7)

(Page 9)

(Page 10)

cover

screw (+BVTP 3

3-10. BELT (LD), LOADING BOARD,

MOTOR (L) ASSY

(Page 10)

two screw (case 3)

3-3. MAIN BOARD

)

wire (flat type) (13 core) (CN703)

wire (flat type) (31 core) (CN702)

screw (+BVTP 3

connector (8p) (CN901)

MAIN board

three screws (+BVTP 3

SCD-XE597

3-4. LOADING PANEL

tapering driver

connector (5p) (CN151)

PWB holder

two claws

loading panel

SCD-XE597

)

3-5. FRONT PANEL SECTION

connector (CN101)

connector (CN891)

claw

wire (flat type) (13 core) (CN703

3-6. KEY BOARD, DISPLAY BOARD

LED board

knob (AMS)

bracket

front panel section

three screws (+BVTP 3 × 8)

connector (CN813)

KEY board

three screws (+BVTP 2.6

connector (CN814)

two screws (+BVTP 2.6

DISPLAY board

seven screws (+BVTP 2.6

3-7. CD MECHANISM DECK (CDM66D-DVBU50)

three screws (+BVTP 3

CD mechanism dec

(CDM66D-DVBU50)

wire (flat type) (31 core) (CN702)

connector (5p) (CN151)

SCD-XE597

3-8. BASE UNIT (DVBU50)

Turn the cam to the direction of arrow (counter clock wise) by tapering driver.

DVBU50

screw (DIA. 12), floating

Remove the Base unit (DVBU50) to the direction of arrow.

Take off the tray.

SCD-XE597

)

3-9. RF BOARD, PICK-UP UNIT (DBU-3)

hook

three screws (step screw (M))

pick-up unit (DBU-3)

holder (66D)

wire (flat type) (CN002)

RF board

3-10. BELT (LD), LOADING BOARD, MOTOR (L) ASSY

gear (LD)

claw

belt (LD)

CN001

flexible board (

two screws (BTTP M2.6)

CN003

two screws

(B 2.6

tray (66)

claw

Removal the solders.

motor (L) assy

LOADING board

SECTION 4

DIAGRAMS

SCD-XE597

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.

• W : indicates side identified with part number.

• f : internal component.

• : Pattern from the side which enables seeing.

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

• Indication of transistor.

C Q

These are omitted.

Note Schematic Diagrams.

• All capacitors are in µF unless otherwise noted. (p: pF) 50 WV or less are not indicated except f or electrolytics and tantalums.

• All resistors are in Ω and 1/ specified.

• f : internal component.

• C : panel designation. Note: The components identified by mark 0 or dotted

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

• A : B+ Line.

• B : B– Line.

•Voltages and waveforms are dc with respect to ground under no-signal conditions. no mark: SACD PLAY ( ): CD PLAY

•Voltages are taken with a VOM (Input impedance 10 MΩ). Voltage variations may be noted due to normal production tolerances.

•Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production tolerances.

• Circled numbers refer to waveforms.

• Signal path.

J : CD c : CD DIGITAL OUT (OPTICAL)

W or less unless otherwise

•Waveforms – RF Board –

1 IC001 tl SIGO (CD)

200 ns/DIV

1 IC001 tl

40 ns/DIV

1.4 Vp-p

SIGO (SACD)

1.4 Vp-p

– MAIN Board – – DISPLAY Board –

2 IC706 uk DSPHREFO

354 ns

3 IC706 <z./

40 ns/DIV

3.5 Vp-p

RF IN (SACD)

1.4 Vp-p

5 IC801 5 IC

200 ns

4 IC320 2,4,6,q;,qs

3.3 Vp-p

88.6 ns

3.5 Vp-p

• Circuit Boards Location

POWER SW board

KEY board

PT board

LED board

LOADING board

RF board

MAIN boar

DISPLAY board

SCD-XE597

1111

+ 25 hidden pages

Sony SCD-XE597 Service manual

TABLE OF CONTENTS

SERVICING NOTES

GENERAL

3-1. DISASSEMBLY FLOW

DISASSEMBLY

3-2.COVER

3-3. MAIN BOARD

3-4. LOADING PANEL

3-5. FRONT PANEL SECTION

3-6. KEY BOARD, DISPLAY BOARD

3-7. CD MECHANISM DECK (CDM66D-DVBU50)

3-8. BASE UNIT (DVBU50)

3-9. RF BOARD, PICK-UP UNIT (DBU-3)

3-10. BELT (LD), LOADING BOARD, MOTOR (L) ASSY

DIAGRAMS