Sony CDP-CE525 - Compact Disc Player Manual de usuario

– 1 –

MICROFILM

CDP-CE525

US Model

Canadian Model

AEP Model

Australian Model

SPECIFICATIONS

SERVICE MANUAL

COMPACT DISC PLAYER

Model Name Using Similar Mechanism CDP-CE515

CD Mechanism Type CDM27H

Base Unit Type BU-5BD25

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

– 2 –

CAUTION

Use of controls or adjustments or performance of procedures

other than those specified herein may result in hazardous ra-

diation exposure.

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 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.

Laser component in this product is capable of emitting radiation

exceeding the limit for Class 1.

This appliance is classified as

a CLASS 1 LASER product.

The CLASS 1 LASER PROD-

UCT MARKING is located on

the rear exterior.

The following

caution label is

located inside of

the unit.

PARTS No. MODEL

MODEL IDENTIFICATION

— BACK PANEL —

4-997-419-0π

4-997-419-1π

4-997-419-2π

4-997-419-3π

Canadian

AEP

Australian

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 PUBLISHED BY SONY.

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉCURITÉ!!

LESCOMPOSANTSIDENTIFIÉSPARUNEMARQUE!SUR

LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES

PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE

FONCTIONNEMENT.NEREMPLACER CES COMPOSANTS

QUE PAR DES PIÈCES SONY DONT LES NUMÉROS

SONT DONNÉS DANS CE MANUEL OU DANS LES

SUPPLÉMENTS PUBLIÉS PAR SONY.

,,,,,,,,,yyyyyyyyy

PART NO.

SAFETY CHECK-OUT

After correcting the original service problem, perform the follow-

ing safety checks before releasing the set to the customer:

Checktheantenna terminals, metal trim,“metallized”knobs, screws,

and all other exposed metal parts forAC leakage. Check leakage as

described below.

LEAKAGE

The AC leakage from any exposed metal part to earth Ground and

from all exposed metal parts to any exposed metal part having a

return to chassis, must not exceed 0.5 mA (500microampers). Leak-

age current can be measured by any one of three methods.

1. A commercial leakage tester, such as the Simpson 229 or RCA

WT-540A. Follow the manufacturers’ instructions to use these

instruments.

2. A battery-operated AC milliammeter. The Data Precision 245

digital multimeter is suitable for this job.

3. Measuring the voltage drop across a resistor by means of aVOM

or battery-operatedAC voltmeter. The “limit” indication is 0.75

V, so analog meters must have an accurate low-voltage scale.

The Simpson 250 and Sanwa SH-63Trd are examples of a pas-

sive VOM that is suitable. Nearly all battery operated digital

multimeters that have a 2V AC range are suitable. (See Fig. A)

Fig. A. Using an AC voltmeter to check AC leakage.

0.15

To Exposed Metal

Parts on Set

1.5k

Ω

voltmeter

(0.75V)

Earth Ground

– 3 –

TABLE OF CONTENTS

1. SERVICING NOTE .......................................................... 4

2. GENERAL .......................................................................... 7

3. DISASSEMBLY

3-1. Case and Front Panel ............................................................ 8

3-2. Back Panel and Disc Table.................................................... 8

3-3. Base Unit ............................................................................. 9

3-4. Bracket (Gear) Assembly...................................................... 9

4.TEST MODE ..................................................................... 10

5. ELECTRICAL BLOCK CHECKING ........................ 13

6. DIAGRAMS

6-1. Circuit Boards Location...................................................... 15

6-2. Schematic Diagram – BD Section – ................................... 17

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

6-4. Printed Wiring Board – Main Section –.............................. 21

6-5. Schematic Diagram – Main (1/2) Section –........................ 23

6-6. Schematic Diagram – Main (2/2) Section –........................ 25

6-7. Printed Wiring Board – Motor Section – ............................ 27

6-8. Schematic Diagram – Motor Section – ............................... 28

6-9. Schematic Diagram – Panel Section – ................................ 29

6-10. Printed Wiring Board – Panel Section –............................ 31

6-11. IC Pin Functions................................................................ 33

6-12. IC Block Diagrams............................................................ 37

7. EXPLODEDVIEWS

7-1. Case Section........................................................................ 40

7-2. Front Panel Section ............................................................. 41

7-3. Back Panel and Disc Table Section..................................... 42

7-4. Chassis Section ................................................................... 43

7-5. Base Unit Section (BU-5BD25).......................................... 44

8. ELECTRICAL PARTS LIST ........................................ 45

– 4 –

SECTION 1

SERVICING NOTE

HOW TO OPEN THE DISC TRAY WHEN POWER SWITCH

TURNS OFF

NOTES ON HANDLINGTHE OPTICAL PICK-UP BLOCK

OR BASE UNIT

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

electrostatic breakdown because of the potential difference

generated by the charged electrostatic load, etc. on clothing and

the human body.

During repair, pay attention to electrostatic breakdown 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 objective lens.

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 two times.

Tray

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

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

To close the disc tray, turn the driver in the reverse direction

(to IN direction).

Set the mark of

ROTARY ENCODER.

Slide the SET LEVER

to the arrow

direction.

Rotate the GEAR (U/D)

to the arrow

direction.

Install the MAIN GEAR

as show in the drawing.

Stopper washer (5)

NOTE FOR MAIN GEAR INSTALLATION

– 5 –

CD-TEXTTEST DISC

This unit is able to display the TEXT 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. Set the test disc on a free tray, 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/0 dB/ L&R

4. Rotate ≠and ±knob to switch 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 DISCTEXT Data Contents (TRACKS No. 1 to 41:Normal Characters)

TRACK

No. Displayed Contents

TRACK

No. Displayed Contents

1kHz/0dB/L&R

20Hz/0dB/L&R

40Hz/0dB/L&R

100Hz/0dB/L&R

200Hz/0dB/L&R

500Hz/0dB/L&R

1kHz/0dB/L&R

5kHz/0dB/L&R

7kHz/0dB/L&R

10kHz/0dB/L&R

16kHz/0dB/L&R

18kHz/0dB/L&R

20kHz/0dB/L&R

1kHz/0dB/L&R

1kHz/-1dB/L&R

1kHz/-3dB/L&R

1kHz/-6dB/L&R

1kHz/-10dB/L&R

1kHz/-20dB/L&R

1kHz/-60dB/L&R

1kHz/-80dB/L&R

1kHz/-90dB/L&R

Infinity Zero w/o emphasis//L&R

Infinity Zero with emphasis//L&R

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

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

19kHz+20kHz(1:1)/0dB/L&R

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

100Hz/0dB/L*

1kHz/0dB/L*

10kHz/0dB/L*

20kHz/0dB/L*

100Hz/0dB/R*

1kHz/0dB/R*

10kHz/0dB/R*

20kHz/0dB/R*

100Hz Squer Wave//L&R

1kHz Squer Wave//L&R

1kHz w/emphasis/-0.37dB/L&R

5kHz w/emphasis/-4.53dB/L&R

16kHz w/emphasis/-9.04dB/L&R

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

SHIPMENT MODE

Performed when returning the unit to the customer.

Custom File Erases all custom files and initializes settings.

Procedure:

1. Remove the discs from all trays.

2. While pressing the DISK SKIP button and PROGRAM button,

press the 1/u button to turn ON the power.

3. “NO DISC” is displayed, indicating that the mode has ended.

Note: “NO DISC” may be displayed even if there are discs on the

trays.

– 6 –

TRACK

No. Recorded contents Display

NAll the same

X Y Z [ \ ] ^ _ (58····

11 a b c d e f g (60····

NAll the same

xyz{I}–(78····

i ¤ § (A0···· ¢£¥ are not displayed

–(A8···· ≥Cª¬PR are not displayed

±µ(B0···· •23

¶•are not displayed

¿ (B8···· † 1ºare not displayed

à á â ã Ä ÅÆÇ (C0····

èéêëìíîï(C8····

DÑòóôOÖ (D0····

ØùúûüY ß(D8···· is not displayed

NAll the same

ñòóôoö÷(F0····∂ is not displayed

øùúûüy y(F8···· is not displayed

NAll the same

′

! ” # $ %& ´ (21h to 27h)1kHz 0dB L&R

( ) + , – . / (28h to 2Fh)

01234567 (30h to 37h)

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

@A B C D E F G (40h to 47h)

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

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

X Y Z [ ¥ ] ^ _ (58h to 5Fh)

a b c d e f g (60h to 57h)

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

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

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 C7h)

ÈÉÊËÌÍÎÏ (C8h to CFh)

DÑÒÓÔÕÖ (D0h to C7h)

ØÙÚÛÜY ß (D8h to DFh)

àáâãäåæç (E0h to E7h)

èéêëìíîï (E8h to FFh)

∂ñòóôõö÷(F0h to F7h)

øùúûüy ÿ (F8h to FFh)

No.66

No.67

No.99

′

Table 2: CD-TEXT TEST DISC Recorded Contents and Display

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

– 7 –

LOCATION OF PARTS AND CONTROLS

11/u button

2DISC 1-5 button

3CONTINUE button

4SHUFFLE button

5PROGRAM button

6REPEAT button

7DISC CHECK button

8Display window

9·(PLAY) button and indicator

10 P(PAUSE) button and indicator

11 p(STOP) button

12 EX-CHANGE button

13 DISC SKIP button

14 §OPEN/CLOSE button

15 ≠AMS* ±/(DISC)/(PUSH ENTER) knob

16 MEGA CONTROL button and indicator

17 X-FADE button and indicator

18 NO DELAY button and indicator

19 CLEAR button

20 CHECK button

21 +(– AMS* +) button

22 =(– AMS* +) button

23 PEAK SEARCH button

24 EDIT/TIME FADE button

25 TIME/TEXT button

26 FADER button

27 INPUT button

28 PHONES jack

* AMS is abbreviation for Automatic Music Sensor.

SECTION 2

GENERAL

Front Panel

1234 5 6 7 8 9 10 11 12 13 14

16171819202122232425262728

– 8 –

SECTION 3

DISASSEMBLY

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

3-1. CASE AND FRONT PANEL

3-2. BACK PANEL AND DISCTABLE

Connector (Power cord)

Six screws

(BVTP3x10)

Back pane

Flat type wire (6 core)

(MAIN board, to CN404)

Screw

(BVTP3x8)

Bracket (guide B1)

!™

Bracket (guide B1)

Screw (BVTP3x8)

!¡

Screw (BVTP3x8)

!£

Screw (PTPWH3x12)

!¢

Disc table (B)

!∞

Disc table (A)

Bracket (guide F1)

!º

Bracket (guide F1)

Two screws

(M3x8)

Two screws

(M3x8)

Two screws

(BV3x8)

Case

Four screws

(BVTP3x10)

Three screws

(BVTP3x10)

Bottom plate

Flat type wire (17 core)

(MAIN board, to CN402)

Flat type wire (9 core)

(MAIN board, to CN403)

!º

Two screws

(BVTT3x8)

!¡

Three screws

(BVTP3x10)

!™

Front panel

– 9 –

Flat type wire (16 core

)

(BD board, to CN101)

Screw

(M3x12)

Two screws

(PTPWH2.6x6)

Two screws

(PTPWH2.6x6)

Holder (BU)

Compression spring (BU)

Base unit (BU-5BD25)

Stopper washer (5)

Gear (U/D)

Five screws

(BVTP3x8)

!º

Bracket (GEAR

)

assembly

2Gear (REV)

3Stopper washer (5)

4Gear (MAIN)

5Screw

(BVTP3x8)

6Rotary encoder

3-3. BASE UNIT

3-4. BRACKET (GEAR) ASSEMBLY

– 10 –

SECTION 4

TEST MODE

ADJ MODE

NOTE : This mode cannot be performed without a general remote

commander.

1. Chuck the CD first, and then turn OFF the power.

2. Short-circuit the test point (TP1:ADJ) of the main board and

ground with a lead wire.

3. Press the 1/ubutton to turn ON the power.

The CD is played back automatically and the ADJ mode is set.

4. To exit the mode, press the 1/ubutton to turn OFF the power.

• Prohibits high speed search during accessing

• Ignores even if GFS becomes L

ADJ Mode Special FunctionTable

Button Function

Tracking servo, sled servo OFF

Tracking servo, sled servo ON

FLUORESCENT INDICATOR TUBE, LED ALL LIT,

AND KEY CHECK MODE

1. Short-circuit the test(TP2:AFADJ) of the mainboard and ground

with a lead wire.

2. Press the 1/ubutton to turn ON the power.

The whole fluorescent indicator tube lights up.

Nothingwillbedisplayed whenthe SRAMisfaulty or improperly

soldered.

3. All buttons have individual button numbers.

When a button is pressed, the button number is counted up and

displayed.

Buttons and Corresponding Button Numbers

Button Button Number or Display

CONTINUE

SHUFFLE

PROGRAM

REPEAT

DISC CHECK

DISC1

DISC2

DISC3

DISC4

DISC5

·(PLAY)

P(PAUSE)

p(STOP)

EX-CHANGE

DISC SKIP

§OPEN/CLOSE

AMS (button)

AMS (knob)

MEGA CONTROL

X-FADE

NO DELAY

CLEAR

CHECK

)

PEAK SEARCH

EDIT/TIME FADE

TIME/TEXT

FADER

INPUT

Partial lighting 1 (Grid check)

Partial lighting 2 (Segment check)

All lit (LED lighting)

When remote controller signals are received, “RM **” will be

displayed.

(** are the numbers corresponding to the remote controller keys.)

When using the remote controller,switch the COMMAND MODE

switch to CD1.

4. To exit the mode, press the 1/ubutton to turn OFF the power.

When rotated clockwise: The music calendar

numerals light up in ascending order.

When rotated counterclockwise: The music

calendarnumerals light up indescending order.

CN402

IC302

TP1

(ADJ)

TP2

(AFADJ)

[MAIN BOARD] – CONDUCTOR SIDE –

Count up display Displays button numbe

* Set the COMMAND MODE switch to CD1.

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