Sony CDPXE-220 Service manual

CDP-XE220/XE320

SERVICE MANUAL

Ver 1.1 2001. 05

Photo: CDP-XE320

Model Name Using Similar Mechanism CDP-XE210/XE310 CD Mechanism Type CDM14FL-5BD29C Base Unit Type BU-5BD29C Optical Pick-up Type KSS-213BA/F-NP

SPECIFICATIONS

AEP Model

UK Model

9-922-805-12

COMPACT DISC PLAYER

Sony Corporation

Home Audio Company Shinagawa Tec Service Manual Production Group

– 1 –

Laser component in this product is capable of emitting radiation exceeding the limit for Class 1.

TABLE OF CONTENTS

1. SERVICING NOTE .......................................................... 3

This appliance is classified as a CLASS 1 LASER product. The CLASS 1 LASER PR ODUCT MARKING is located on the rear exterior.

The following caution label is located inside of the unit.

CAUTION

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

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

3. DISASSEMBLY

3-1. Front Panel ........................................................................... 5

3-2. Base Unit (BU-5BD29C)......................................................5

4. TEST MODE ....................................................................... 6

5. ELECTRICAL BLOCK CHECKING .......................... 8

6. DIAGRAMS

6-1. Circuit Boards Location...................................................... 10

6-2. Printed Wiring Board – CD Section – .................................11

6-3. Schematic Diagram – CD Section – ................................... 13

6-4. Printed Wiring Board – Main Section –.............................. 15

6-5. Schematic Diagram – Main Section – ................................ 17

6-6. Printed Wiring Board – Panel Section – ............................. 19

6-7. Schematic Diagram – Panel Section – ................................ 21

6-8. IC Pin Functions ................................................................. 23

6-9. IC Block Diagrams ............................................................. 29

7. EXPLODED VIEWS

7-1. Main Section ....................................................................... 32

7-2. CD Mechanism Section (CDM14FL-5BD29C) ................. 33

7-3. Base Unit Section (BU-5BD29C) .......................................34

8. ELECTRICAL PARTS LIST ........................................ 35

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.

SAFETY-RELATED COMPONENT WARNING !!

COMPONENTS IDENTIFIED BY MARK ! OR DO TTED 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.

MODEL IDENTIFICATION — BACK PANEL —

PARTS No. MODEL

4-996-565-0 4-996-565-1 4-996-565-2 4-996-565-3

XE320 : AEP XE320 : UK XE220 : AEP XE220 : UK

Parts No.

– 2 –

SECTION 1

SERVICING NOTE

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.

To close the disc table, turn the driver in the reverse direction.

Pull out disc table.

NOTES ON HANDLING THE 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.

– 3 –

Front Panel

SECTION 2

GENERAL

LOCATION OF PARTS AND CONTROLS

1 1/u switch 2 DISC tray 3 PEAK SEARCH button 4 CHECK button 5 CLEAR button 6 0,) button 7 ≠, AMS * ± knob

(PUSH ENTER button)

8 p (stop) button 9 P (pause) button 10 · (play) button 11 § OPEN CLOSE button 12 Display window 13 TIME button 14 REPEAT button 15 PLAY MODE button

45 6 7

89101112131415

* AMS is the abbreviation for Automatic Music Sensor.

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SECTION 3

DISASSEMBLY

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

3-1. FRONT PANEL

• In order to remove the front panel block when the power supply does not turn on, rotate the cam with tapering driver as the figure shows, and the loading part will be moved. Then pull out the loading part by your hand to remove the loading panel as the figure shows. After tha t take out the front panel block.

Tapering driver

Loading panel

Loading part

3-2. BASE UNIT (BU-5BD29C)

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

BU-5BD29C

Yoke bracket

Remove the Base unit (BU-5BD29C) to the direction of arrow.

Take off the disc table.

– 5 –

SECTION 4

TEST MODE

4-1. AF MODE

The following checks can be performed in the AF mode, which is set by connecting the TP2 (JW40 : AFADJ) terminal on MAIN boar d to the Ground and turning on the power.

• FL tube check

After all segments light up, when the · button is pressed continuously, the following will be displayed. (Partial lighting 1)

8 8 8

When the p button is pressed continuously , the following will be displayed. (partial lighting 2)

6810

12 14

16 18 20

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

• Key check

All buttons have corresponding button numbers. When a button is pressed, the counter will count up and display the button’s n umber. Ho wever , the counter will only count to “13”. It will not count for buttons already pressed once, but will display the button’s number.

(Partial lighting 1)

(Partial lighting 2)

4-2. ADJ MODE

The following operations are performed in the ADJ mode , which is set by connecting the TP3 (JW41 : ADJ) terminal to the Ground and turning on the power.

FUNCTIONS OF NUMBER BUTTONS (With the general remote commander)

Button

1 2 3 4 5 6 7 8 9

Focus bias adjustment plus (Not used in servicing) EF-BALANCE adjustment plus (Not used in servicing) Tracking servo off Tracking gain adjusting plus (Not used in servicing) Laser power control off (Not used in servicing) Focus bias adjustment minus (Not used in servicing) EF-BALANCE adjustment minus (Not used in servicing) Tracking servo on Tracking gain adjustment minus ((Not used in servicing) Laser power control on (Not used in servicing)

Function

4-3. AGING MODE

This unit is equipped with an aging mode to check operations of the mechanism deck.

• When faults occur: Aging stops, and the state when aging stopped is displayed on the fluorescent display tube.

• When no fault has occurred: Aging is continued repeatedly.

888888

Display of counting

Button

ENTER (AMS)

0 )

TIME REPEAT PLAY MODE

Button No.

Display of button number

Displayed

02 04 05 06 07 08 09

When the AMS knob is rotated to the right, the music calendar changes from 1 n – – n 20 n 1. When rotated to the left, it changes from 20 n 1 n 20 – –

• Remote commander check

When the · button of the remote commander is pressed, the “·” lights up. All go off when the other buttons are pressed.

Button

PEAK SERCH CHECK CLEAR OPEN/ CLOSE § PLAY · STOP p

Button No.

Displayed

10 11 12

All lit

Partial lighting 1 Partial lighting 2

Aging method 1 (When using the aging mode remote controller (J-2501-123-A)):

1. Press the 1/u button and turn ON the power.

2. Set the disc on the tray.

3. Press the AGING START button of the aging remote controller .

4. Aging starts and the message shown in Fig. 1 is displayed on the fluorescent display tube.

5. To end, press the 1/u button.

Aging method 2 (When no aging mode remote controller):

1. Press the 1/u button and turn ON the power.

2. Set the disc on the tray.

3. Press the ∏ button, CHECK button, and PLA Y MODE button together in this order.

4. Aging starts and the message shown in Fig. 1 is displayed on the fluorescent display tube.

5. To end, press the 1/u button.

Fig. 1 Message in Aging Mode

Code

No.

Load in

Access to TOC

Access to last track

Playback of last track (3 seconds) Access to first track

4 5

Playback of first track (3 seconds) Load out

State

Display when

normal

A0 A1 A2

Counter display

Display when

abnormal

E0 E1 E2 E3

E4 E5

– 6 –

[ MAIN BOARD ] — Component Side —

TP3

(JW41: ADJ)

CN402

IC401

TP2 (JW40: AF ADJ)

– 7 –

SECTION 5

ELECTRICAL BLOCK CHECKING

Note:

1.CD Block is basically designed to operate without adjustment. Therefore, check each item in order given.

2.Use YEDS-18 disc (3-702-101-01) unless otherwise indicated.

3.Use an oscilloscope with more than 10MΩ impedance.

4.Clean the object lens by an applicator with neutral detergent when the signal level is low than specified value with the following checks.

S Curve Check

oscilloscope

BD board

TP (FEO) TP (VC)

Procedure :

1.Connect oscilloscope to test point TP (FEO) on BD board.

2.Connect between test point TP (FOK) and ground by lead wire.

3.Turn Power switch on.

4.Put disc (YEDS-18) in and turn Power switch on again and actuate the focus search. (actuate the focus search when disc table is moving in and out.)

5.Check the oscilloscope waveform (S-curve) is symmetrical between A and B. And confirm peak to peak level within 3±1 Vp-p.

S-curve wavef orm

symmetry

Within 3

1 Vp-p

Note:

A clear RF signal waveform means that the shape “◊” can be clearly distinguished at the center of the waveform.

RF signal waveform

VOLT/DIV : 200mV TIME/DIV : 500ns

level : 1.3 ± 0.3 Vp-p

E-F Balance (1 Track Jump) Check (Without remote commander)

oscilloscope

BD board

TP (TEO) TP (VC)

Procedure :

1.Connect oscilloscpe to test point TP (TEO) on BD board.

2.Turn Power switch on.

3.Put disc (YEDS-18) in to play the number five track.

4.Press the “P (Pause)” button. (Becomes the 1 track jump mode)

5.Check the level B of the oscilliscope's waveform and the A (DC voltage) of the center of the Traverse waveform. Confirm the following : A/B x 100 = less than ± 7%

1 track jump waveform

Center of the waveform

6.After check, remove the lead wire connected in step 2.

Note :

•Try to measure several times to make sure than the ratio of A : B or B : A is more than 10 : 7.

•Take sweep time as long as possible and light up the brightness to obtain best waveform.

RF Level Check

oscilloscope

BD board

TP (RF) TP (VC)

Procedure :

1.Connect oscilloscope to test point TP (RF) on BD board.

2.Turn Power switch on.

3.Put disc (YEDS-18) in to play the number five track.

4.Confirm that oscilloscope waveform is clear and check RF sig-

nal level is correct or not.

level : 500

100 mVp-p

symmetry

A (DC voltage)

E-F Balance Check (With remote commander)

oscilloscope

BD board

TP (TEO) TP (VC)

Procedure :

1.Connect the test point TP3 (ADJ) on MAIN board to the ground with a lead wire on main board.

2.Connect oscilloscpe to test point TP (TEO) on BD board.

3.Turn the Power switch on to set the ADJ mode.

4.Put disc (YEDS-18) in to play the number five track.

5.Press the “3” button. (The tracking servo is turned OFF.)

– 8 –

SECTION 6

230µsec

5Vp-p

DIAGRAMS

6. Check the level B of the oscilliscope's wavefor m and the A (DC voltage) of the center of the Traverse waveform. Confirm the following : A/B x 100 = less than ± 7%

Traverse waveform

Center of the waveform

level : 500 ± 100 mVp-p

A (DC voltage)

7. Press the “8” button. (The tracking servo is turned ON.) Confirm the C (DC voltage) is almost equal to the A (DC voltage) is step

Traverse waveform

C (DC

Tracking servo OFF

Tracking servo ON

voltage)

8. Disconnect the lead wire of TP3 (ADJ) connected in step 1.

[ MAIN BOARD ] — Component Side —

CN402

TP3 (JW41: ADJ) TP2 (JW40: AF ADJ)

IC401

Adjustment Location :

[ BD BOARD ] — Side A —

(RF)

IC101

(TEO)

(FEO)

(FOK)

(VC)

6-1. CIRCUIT BOARDS LOCATION

LOADING board

POWER SW board

PANEL board

THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.)

For schematic diagrams.

Note:

• 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 specified.

•

: internal component.

• C : panel designation.

Note: The components identified by mark ! or dotted line

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

• U : B+ Line.

• V : B– Line.

• H : adjustment for repair.

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

: can not to be measured

∗

• Voltages are tak en with a V OM (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 : digital out

/4 W or less unless otherwise

BD board

WAVEFORMS – CD SECTION –

500mV/DIV, 500nsec/DIV

IC101 #£ RFO

200mV/DIV, 1µsec/DIV

IC101 2 FEI

50mV/DIV, 1msec/DIV

IC101 $¶ TEI

7.8µsec

IC103 @¶ MDP

– PANEL SECTION –

1.3Vp-p

0.5Vp-p

0.2Vp-p

2.5Vp-p

MAIN board

IC103 ^º XPCK

135µsec

5Vp-p

IC103 ^™ RFCK

135µsec

5Vp-p

IC103 &¢ WFCK

2.6Vp-p

16.9344MHz

IC103 *ª XTAI

– 9 –

For printed wiring boards.

Note:

• X : parts extracted from the component side.

• Y : parts extracted from the conductor side.

•

p : parts mounted on the conductor side.

•

• b : Pattern from the side which enables seeing.

(The other layers' patterns are not indicated.)

: Through hole.

4.2Vp-p

4MHz

IC501 #¡ EXTAL

– 10 –

CDP-XE220/XE320

• Semiconductor Location

Ref. No. Location IC101 C-1

IC102 B-1 IC103 C-2

Q101 C-6

6-2. PRINTED WIRING BOARD – CD SECTION –

• See page 10 for Circuit Boards Location.

• Indication of transistor

These are omitte

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(Page 15)

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+ 22 hidden pages