Sony CDPX-5000 Service manual

CDP-X5000

SERVICE MANUAL

Model Name Using Similar Mechanism NEW Base Unit Type BU-12A Optical Pick-up Type KSS-274A/J-N

SPECIFICATIONS

AEP Model

UK Model

E Model

Chinese Model

MICROFILM

General

COMPACT DISC PLAYER

— 1 —

CAUTION

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

TABLE OF CONTENTS

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

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

The 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 PRODUCT MARKING is located on the rear exterior.

CAUTION

: INVISIBLE LASER RADIATION WHEN OPEN AND

INTERLOCKS DEFEATED. AVOID EXPOSURE TO BEAM.

ADVARSEL

SIKKERHEDSAFBRYDERE ER UDE AF FUNKTION. UNDGÅ UDSAETTELSE FOR STRÅLING.

VORSICHT

ABDECKUNG GE ÜBERBRÜCKT.

VARO!

TIINA NÄKYMÄTTÖMÄLLE LASERSÄTEILYLLE. ÄLÄ KATSO SÄTEESEEN.

VARNING

NAD OCH SPÄRREN ÄR URKOPPLAD. BETRAKTA EJ STRÅLEN.

ADVARSEL

SIKKERHEDSLÅS BRYTES. UNNGÅ EKSPONERING FOR STRÅLEN.

: USYNLIG LASERSTRÅLING VED ÅBNING NÅR

: UNSICHTBARE LASERSTRAHLUNG, WENN

FFNET UND SICHEREITSVERRIEGELUNG

NICHT DEM STRAHL AUSSETZEN.

: AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALT-

: OSYNLIG LASERSTRÅLING NÄR DENNA DEL ÄR ÖPP-

: USYNLIG LASERSTRÅLING NÅR DEKSEL ÅPNES OG

This caution label is located inside the unit.

3. DISASSEMBLY

3-1. Top Plate Assembly ............................................................. 8

3-2. Front Panel Assembly .......................................................... 8

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

3-4. Back Panel ........................................................................... 9

4. ELECTRICAL BLOCK ADJUSTMENTS ............... 10

5. DIAGRAMS

5-1. Circuit Boards Location .................................................... 12

5-2. IC Pin Function

• IC101 Focus/Tracking/Sled/EFM Comparator

(CXD2515AQ ) ............................................................... 13

• IC201 System Control (CXP84124-043Q) ..................... 16

5-3. Printed Wiring Board — Servo, Panel Section —............. 20

5-4. Schematic Diagram — Servo, Panel Section — ............... 23

5-5. Schematic Diagram — Audio, Power Section — ............. 28

5-6. Printed Wiring Board — Audio, Power Section —........... 31

6. EXPLODED VIEWS

6-1. Top Plate Assembly Seciton .............................................. 37

6-2. Front Panel Section ........................................................... 38

6-3. Back Panel Section ............................................................ 39

6-4. Base Unit Section (BU-12A)............................................. 40

7. ELECTRICAL PARTS LIST ..................................... 41

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.

SAFETY-RELATED COMPONENT WARNING !!

COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH MARK ! ON THE SCHEMATIC DIAGRAMS AND IN THE P ARTS 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.

— 2 —

SECTION 1

SERVICING NOTE

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 objecti ve 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 OPERA TION CHECK

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

WRITING OF FOCUS/TRACKING AUTO GAIN DATA

General CD palyers using digital servo ICs automatically adjust the focus/tracking gain each time the disc is changed. In this unit, the gain of the standard disc (YEDS-18) is written in the non-volatile memory (IC203:X24C01S) of the servo board so that the gain need not be re-adjusted when changing discs. Therefore, if the servo board, IC203 of the servo board, or optical pick-up has been replaced, be sure to write the auto gain data.

FLUORESCENT INDICA T OR TUBE FULL LIGHTING MODE

1. Connect TP (AFJ:Pin 2 of CN515) to GND (Ground), and turn ON the POWER switch.

2. The bridge check (check for short-circut between pins of the S RAM (IC202 of the servo board)) is performed, and all the FL tubes light up if there is no bridge.

3. When a key other than the p(stop) key is pressed, the corresponding FL tubes lights up. Each time the p(stop) key is pressed, all the FL tubes light up.

[SERVO BOARD] — Conductor Side —

CN515

ADJ

321

AFJ

IC102

CN514

IC104 IC105

IC202

CN513

1. Connect TP (ADJ: Pin 3 of CN515) to GND (Ground), and turn ON the POWER switch.

2. Insert the test disc (YEDS-18). (The TOC data of the disc will be read.) This memorizes the auto gain data of the test disc.

Note:

• If the disc is replaced without turning OFF the power, the auto gain

data of the last disc inserted will be memorized.

• If the POWER switch is turned ON without connecting TP (ADJ)

to GND, the auto gain data will not be memorized when the disc is inserted, and the data memorized the last time will be taken as the focus/tracking data.

— 3 —

LOCATION OF PARTS AND CONTROLS

SECTION 2

GENERAL

This section is extracted from instruction manual.

UNIT OPERATION BLOCK

123

1 POWER switch 2 Disc lid 3 0/) (fast forward/

fast rewind) buttons

5 · (play) button/lamp 6 P (pause)button/lamp 7 p (stop)button 8 Display window

4 =/+ buttons (*AMS)

*AMS is the abbreviation of Automatic Music Sensor.

REAR PANEL

1LINE OUT 2 DIGITAL OUT OPTICAL switch 3 DIGITAL OUT COAXIAL switch 4 DIGITAL OUT BALANCED switch 5 AC IN (230V) 6 DIGITAL OUT BALANCED 7 DIGITAL OUT COAXIAL 8 DIGITAL OUT OPTICAL

REMOTE COMMANDER (RM-DX5000)

1 2

3 4 5

6 7 8 9 !º !¡

!™ !£

!¢ !∞

!§ !¶

!• !ª

@º @¡ @™

1 DISPLAY MODE button 2 PLAY MODE buttons

CONTINUE button SHUFFLE button PROGRAM button C.INDEX button

3 Number buttons (1-20) 4 CLEAR button 5 >20 button 6 CHECK button 7 REPEAT button 8 A˜B button 9 ·(play) button

!º =/+ (*AMS) buttons !¡ C/c(index search) buttons !™ TIME button !£ MUSIC SCAN button !¢ SPACE button !∞ FADER button !§ PEAK SEARCH button !¶ ERASE button !• FILE button !ª p (stop) button @º P (pause) button @¡ 0/) (fast forward/

fast rewind) buttons

@™ 0/) SLOW buttons

— 4 —

— 5 —

— 6 —

— 7 —

SECTION 3

DISASSEMBLY

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

3-1. TOP PLATE ASSEMBLY

Top plate assembly

Connector (CN805: Display board)

Four ornamental screws

3-2. FRONT PANEL ASSEMBLY

Front panel assembly

Two bolts (M3)

Connectors (CN207, CN208: SERVO board)

Two bolts (M3)

— 8 —

3-3. BASE UNIT

Base unit

Spring

Four screws (B 2.6X6)

Boss (M) (Four pieces)

Ground wire

Connectors (CN201, CN210: SERVO board)

Screw (B 3X8)

3-4. BACK PANEL

Screw (B 3X8)

Ground wire

Two screws (B 3X6)

Back panel assembly

Connectors (CN305: A OUT board) (CN502: CN508, CN509, CN512: AUDIO board)

Three screws (BV 3X8)

— 9 —

SECTION 4

ELECTRICAL BLOCK ADJUSTMENTS

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

SERVO board

TP (FE) TP (VC)

Procedure :

1. Connect oscilloscope to test point TP (FE: CN210 !ºpin).

2. Connect between test point TP (FEI: IC101 @ªpin) and TP (VC: CN210 !™pin) by lead wire.

3. Put disc (YEDS-18) in and turn Power switch on and actuate the focus search.

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

S-curve waveform

symmetry

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 : 1.2 Vp-p

+0.25 –0.20

E-F Balance Check

oscilloscope

SERVO board

TP (TE) TP (VC)

Procedure :

1. Connect test point TP (ADJ: CN515 3pin) to Ground and TP (TEI: IC101 @¶pin) to TP (VC: CN210 !™pin) with a lead wire.

2. Connect oscillscope to test point TP (TE: CN210 !¡pin)

3. Turn Power switch on.

4. Put disc (YEDS-18) in and playback.

5. Confirm that the oscilloscope waveform is symmetrical on the top and bottom in relation to 0Vdc, and check this level.

level: 3 ± 1 Vp-p

5. 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.

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

RF Level Check

oscilloscope

SERVO board

TP (RF) TP (VC)

Procedure :

1. Connect oscilloscope to test point TP (RF:CN215 1pin).

2. Turn Power switch on.

3. Put disc (YEDS-18) in and playback.

4. Confirm that oscilloscope waveform is clear and check RF signal level is correct or not.

Trav erse waveform

0Vdc

level : 2 ± 1 Vp-p

symmetry

6. Remove the lead wire connected in step 1.

RF PLL Free-run Frequency Check

Procedure :

1. Connect frequency counter to test point TP (PLK: CN513 4pin) with lead wire.

SERVO board

TP (PLK)

frequency counter

2. Turn Power switch on.

3. Put the disc (YEDS-18) in and playback. Confirm that reading on frequency counter is 4.3218 MHz.

Setting of Focus/Tracking Auto Gain Data

Refer to “Writing of Focus/Tracking Auto gain data” on page 3.

— 10 —

Skew Adjustment

(Be sure to perform this adjustment when the optical pick-up or a mechanical part of the optical pick-up has been replaced.)

1. Remove the top plate. (See 3. Disassembly/Top Plate Assembly)

2. Remove the eight screw (+B3X8) of the top plate and remo ve the KEY board.

3. Connect the KEY board connector and the DISPLAY board connector.

4. Remove the base unit. (Do not disconnect the connectors.) (Refer to 3. Disassembly/Base Unit.)

5. Adjust with the unit placed sideways as shown in the figure.

6. Connect and oscilloscope to TP (RF: 1Pin of CN215).

7. While pressing the ±and ·buttons, press the POWER button. (The discrete open/close detection is turned OFF.)

8. Set a disk (YEDS-18) and press the ·button.

9. Rotate the adjustment screw with a Phillips screwdriver and adjust so that the oscilloscope waveform becomes clear.

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

Adjustment screw

Base unit

Note: Hold the base

unit horizontally.

KEY BOARD

level : 1.2 Vp-p

10.After the adjustment, lock the adjustment screw.

[ SERVO BOARD ] — Conductor Side —

CN514

6 4 1

(PLK)

+0.25 –0.20

CN513

(ADJ)

3 1

CN515

IC101

29 (FEI)

27 (TEI)

(VC)

(FE)

(RF)

CN215

CN210

12 10

(TE)

— 11 —

+ 23 hidden pages