Sony CDP-XB820 Manuel utilisateur

MICROFILM

SERVICE MANUAL

COMPACT DISC PLAYER

AEP Model

Model Name Using Similar Mechanism NEW

CD Mechanism Type CDM36-14E

Base Unit Type BU-14E

Optical Pick-up Type KSS-213B/F-NP

SPECIFICATIONS

CDP-XB820

– Continued on next page –

– 2 –

TABLE OF CONTENTS

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

2. GENERAL ................................................................... 6

3. DISASSEMBLY ......................................................... 7

4. TEST MODE

4-1. AF ADJ Mode ................................................................. 9

4-2. ADJ Mode ....................................................................... 10

4-3. CLV-S Mode.................................................................... 10

4-4. AGING Mode.................................................................. 11

5. ELECTRICAL BLOCK CHECKING ................ 12

6. DIAGRAMS

6-1. IC Pin Function Description ........................................... 14

6-2. Note for Printed Wiring Boards and

Schematic Diagrams ....................................................... 16

6-3. Printed Wiring Board – BD Section – ............................ 19

6-4. Schematic Diagram – BD Section – ............................... 21

6-5. Printed Wiring Boards

– OPTICAL PICK-UP/MOTOR Section – .................... 23

6-6. Schematic Diagram

– OPTICAL PICK-UP/MOTOR Section – .................... 24

6-7. Printed Wiring Board – MAIN Section – ....................... 25

6-8. Schematic Diagram – MAIN Section (1/2) –................. 27

6-9. Schematic Diagram – MAIN Section (2/2) –................. 29

6-10. Printed Wiring Boards – POWER Section – .................. 31

6-11. Schematic Diagram – POWER Section – ...................... 33

6-12. Printed Wiring Boards – PANEL Section – ................... 35

6-13. Schematic Diagram – PANEL Section – ........................ 37

7. EXPLODED VIEWS................................................ 42

8. ELECTRICAL PARTS LIST ............................... 46

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK !OR DOTTED

LINE WITH MARK !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 PUB-

LISHED BY SONY.

– 3 –

SECTION 1

SERVICING NOTES

The laser diode in the optical pick-up block may suffer electro-

static 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 emis-

sion, observe from more than 30 cm away from the objective lens.

Notes on chip component replacement

• Never reuse a disconnected chip component.

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

aged by heat.

NOTES ON HANDLING THE OPTICAL PICK-UP

BLOCK OR BASE UNIT

CAUTION

Use of controls or adjustments or performance of procedures

other than those specified herein may result in hazardous ra-

diation exposure.

This appliance is classified as a CLASS 1 LASER product.

The CLASS 1 LASER PRODUCT MARKING is located on

the rear exterior.

Laser component in this product is capable of emitting radiation

exceeding the limit for Class 1.

The following caution label is located inside the unit.

HOW TO OPEN THE DISC TRAY WHEN POWER

SWITCH TURNS OFF

Insert a tapering driver into the aperture of he unit bottom, and

turn in the direction of arrow (to OUT direction).

DISC REMOVAL PROCEDURE (at POWER OFF)

1. Remove the case. (Refer to page 7.)

2. Push the slide cam in the direction of the arrow A.

3. Draw out the loading panel in the direction of the arrow Bby

hand, and remove a disk.

slide cam

loading panel

”B

– 4 –

CD-TEXTTEST DISC

This unit is able to display the test data (character information) written in the CD on its fluorescent indicator tube.

The CD-TEXT TEST DISC (TGCS-313:4-989-366-01) is used for checking the display.

To check, perform the following procedure.

Checking Method:

1. Turn ON the power, set the disc to the disc table with the “test disc” label facing up, and chuck the disc.

2. Press the ·button and play back the disc.

3. The following will be displayed on the fluorescent indicator tube.

Display : 1KHZ 0DB

4. Rotating [AMS] knob, select the track. The text data of each track will be displayed.

For details of the displayed contents for each track, refer to “Table 1 : CD-TEXT TEST DISC TEXT Data Contents” and “Table 2 : CD-

TEXT TEST DISC Recorded Contents and Display”.

Restrictions in CD-TEXT Display

In this unit, some special characters will not be displayed properly. These will be displayed as a space or a character resembling it. For

details, refer to “Table 2 : CD-TEXT DISC Recorded Contents and Display”.

Table 1 : CD-TEXTTEST DISC TEXT Data Contents (TRACKS No. 1 to 41:Normal Characters)

1 1kHz/0dB/L&R 22 1kHz/-90dB/L&R

2 20Hz/0dB/L&R 23 Infinity Zero w/o emphasis//L&R

3 40Hz/0dB/L&R 24 Infinity Zero with emphasis//L&R

4 100Hz/0dB/L&R 25 400Hz+7kHz(4:1)/0dB/L&R

5 200Hz/0dB/L&R 26 400Hz+7kHz(4:1)/-10dB/L&R

6 500Hz/0dB/L&R 27 19kHz+20kHz(1:1)/0dB/L&R

7 1kHz/0dB/L&R 28 19kHz+20kHz(1:1)/-10dB/L&R

8 5kHz/0dB/L&R 29 100Hz/0dB/L*

9 7kHz/0dB/L&R 30 1kHz/0dB/L*

10 10kHz/0dB/L&R 31 10kHz/0dB/L*

11 16kHz/0dB/L&R 32 20kHz/0dB/L*

12 18kHz/0dB/L&R 33 100Hz/0dB/R*

13 20kHz/0dB/L&R 34 1kHz/0dB/R*

14 1kHz/0dB/L&R 35 10kHz/0dB/R*

15 1kHz/-1dB/L&R 36 20kHz/0dB/R*

16 1kHz/-3dB/L&R 37 100Hz Squer Wave//L&R

17 1kHz/-6dB/L&R 38 1kHz Squer Wave//L&R

18 1kHz/-10dB/L&R 39 1kHz w/emphasis/-0.37dB/L&R

19 1kHz/-20dB/L&R 40 5kHz w/emphasis/-4.53dB/L&R

20 1kHz/-60dB/L&R 41 16kHz w/emphasis/-9.04dB/L&R

21 1kHz/-80dB/L&R

TRACK

No. Displayed Contents

NOTE: The contents of Track No. 1 to 41 are the same as those of the current TEST DISC-their titles are displayed.

TRACK

No. Displayed Contents

≠

– 5 –

Table 2: CD-TEXTTEST DISC Recorded Contents and Display

(In this unit, some special characters cannot be displayed. This is no a fault.)

TRACK

No. Recorded contents

′

! ” # $%& ´ (21h to 27h)1kHz 0dB L&R

( ) + , – . / (28h to 2Fh)

01234567 (30h to 37Fh)

8 9 : ; < = > ? (38h to 3Fh)

@A B CD E F G (40h to 47Fh)

H I J K L MNO (48h to 4Fh)

P QR S T U VW (50h to 57Fh)

X Y Z [ ¥ ] ^ _ (58h to 5Fh)

a b c d e f g (60h to 67Fh)

h i j k l m n o (68h to 6Fh)

p q r s t u v w (70h to 77Fh)

xyz{I} (78h to 7Fh)

i¢£¤¥ § (A0h to A7h) 8859-1

≥Cª¬PR–(A8h to AFh)

•±23 µ¶ • (B0h to B7h)

†1º ¿ (B8h to BFh)

ÀÁÂÃÄÅÆÇ (C0h to C7Fh)

ÈÉÊËÌÍÎÏ (C8h to CFh)

DÑÒÓÔÕÖ (D0h to D7Fh)

ØÙÚÛÜY ß (D8h to DFh)

àáâãäåæç (E0h to E7Fh)

èéêëìíîï (E8h to FFh)

∂ñòóôõö÷(F0h to F7Fh)

øùúûüy ÿ (F8h to FFFh)

No.66

No.67

No.99

′

Display

– 6 –

SECTION 2

GENERAL

• LOCATION OF CONTROLS

1 432 5 6 789 0 !¡!™

!£ !¢ !∞!§!¶ !• !ª @º @¡ @™ @£@¢ @∞

1U(power) button

2PLAY MODE button

3REPEAT button

4FADER button

5TIME TEXT button

6Remote sensor

70button

8)button

9EDIT/TIME FADER button

0CHECK button

!¡ CLEAR button

!™ Fluorescent indicator tube

!£ PHONES jack

!¢ PHONE LEVEL knob

!∞ FILTER knob

!§ PEAK SEARCH button

!¶ AUTO SPACE button

!• MUSIC SCAN button

!ª LANGUAGE button

@º Disc tray

@¡ §OPEN/CLOSE button

@™ ·button

@£ Pbutton

@¢ pbutton

@∞ ≠AMS ±, PUSH ENTER knob

– 7 –

CASE

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

SECTION 3

DISASSEMBLY

FRONT PANEL SECTION

2

two screws

(case 3TP2)

2

two screws

(case 3TP2)

3

case

1

two screws

(BV/RING)

2

two screws

(case 3TP2)

3

loading panel ass’y

2

two claws

1

Push the slide cam

in the direction of the arrow

4

connector

(CN903)

5

connector

(CN351)

6

flat wire (25 core

)

(CN302)

8

claw

7

five screws

(BV3

9

front panel section

8

claw

– 8 –

MECHANISM DECK (CDM36-14E)

MAIN BOARD



3

lug

2

screw

(BVTP3

4

two screws

(BVTP3

4

two screws

(BVTP3

5

mechanism dec

(CDM36-14E)

1

flat wire (23 core)

(CN301)

1

flat wire (23 core)

(CN301)

two screws

(BVTP 3

5

main board

3

four screws

(BV/RING)

2

connector

(CN951)

4

two screws

(BVTP 3

– 9 –

When the pbutton is pressed, the following will be displayed.

(partial lighting 2)

When the OPEN/CLOSE §button is pressed, all will light up

again.

When the ≠AMS ±knob is rotated, the following

will be displayed. (partial lighting 3)

• Key check

All buttons have corresponding button numbers. When a button is

pressed, the counter will count up and display the button’s num-

ber. However, the counter will only count to “18”. It will not count

forbuttonsalreadypressed once, butwill display the button’snum-

ber.

SECTION 4

TEST MODE

4-1. AF ADJ MODE

The following checks can be performed in theAFADJ mode, which

is set by connecting the TP2 (AF ADJ : JW96) terminal on MAIN

board to the Ground and turning on the power.

• FL tube check

After all segments light up, when the ·button is pressed, the

following will be displayed. (Partial lighting 1)

(Partial lighting 3)

(Partial lighting 2)

(Partial lighting 1)

“FILTER-STD/1/2/3” is displayed on the FL tube when the

FILTER switch is pressed.

• Remote commander check

“REMOCON PLAY” is displayed on the FL tube when the PLAY

button on the remote commander is pressed.

All go off when the other buttons a pressed.

• Audio check

• Initial setting of digital filter and release of mute.

• Whenthe TP2 (AFADJ)terminal onMAIN board is set to HIGH

(VDD), emphasis turns on. When set to LOW (GND), it turns

off.

6810

12 14

16 18 20

Display of counting

Display of button number

Rightward:

Lefrward:

Button Button Number or Display

LANGUAGE 0

MUSIC SCAN 1

AUTO SPACE 2

PEAK SEARCH 3

PLAY MODE 4

REPEAT 5

FADER 6

TIME/TEXT 7

EDIT/TIME FADE 10

CHECK 11

CLEAR 12

P18

PUSH ENTER 20

OPEN/CLOSE §All lit

PLAY ·Partial lighting 1

STOP pPartial lighting 2

≠AMS ±Partial lighting 3

Buttons and Corresponding Button Numbers

– 10 –

4-2. ADJ MODE

The following operations are performed in the ADJ mode, which

is set by connecting the TP1 (ADJ : JW98) terminal to the Ground

and turning on the power.

• During playback, there is no problem even if the GFS is continu-

ously LOW.

• High speed search is prohibited during access.

• During playback, the gain of focus servo and spindle servo does

not decrease.

• Servo related manual operations and measurement can be

performed.

(For details of operations, refer to Table of Key Operrations in

ADJ Mode.)

4-3. CLV-S MODE

The spindle servo for playback sets into the CLV-S mode when

the TP2 (AFADJ) terminal is connected to Ground after turning on

the power.

TABLE OF BUTTON OPERATIONS IN ADJ MODE

The jitter value display mode can be set after the all-music

remaining number mode using the [TIME/TEXT] button.

The functions of the number buttons are shown in the following

table.

FUNCTIONS OF NUMBER BUTTONS

(With the attached remote commander)

[ MAIN BOARD ] – Conductor Side –

Button Function

1 Focus bias up

2 Focus bias aliasing (upper, middle, lower) display

3 Focus bias (best point, jitter value) display

4 Tracking servo, sled servo off

5 Tracking gain up

6 Focus bias down

7 Focus bias readjustment

8 Focus bias 00 point

9 Tracking servo, sled servo on

10 Tracking gain normal

11 S-Curve mode (play mode only)

12 Eccentric mode

14 Reserved for BD

17 Tracking gain initialize

18 Offset display (TE), EF, Bias

19 Offset display (VC, FE, RF)

20 Auto gain (FCS, TRK)

CLR key (Error Rate, RFCK, GFS) selection

IC930 JW096

TP2

(AFADJ)

TP1

(ADJ)

JW098

IC302

CN302

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