Sony CDPX-3000-ES, CDPX-3000 Service manual

CDP-X3000/X3000ES

SERVICE MANUAL

Photo: CDP-X3000

SPECIFICATIONS

AEP Model

UK Model

E Model

Chinese Model

Model Name Using Similar Mechanism NEW
Base Unit Type BU-14B
Optical Pick-up Type KSS-213B/S-N

MICROFILM

COMPACT DISC PLAYER

TABLE OF CONTENTS

1. SERVICING NOTES

1-1. Writing Focus/Tracking Auto Gain Data ......................... 3

1-2. AF Mode.......................................................................... 3

1-3. ADJ Mode ....................................................................... 4

1-4. CLV-S Mode .................................................................... 4

2. GENERAL ................................................................... 5

3. DISASSEMBLY..........................................................10

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.

4. ELECTRICAL ADJUSTMENTS ......................... 14

5. DIAGRAMS

5-1. IC Pin Function Description............................................16

5-2. Printed Wiring Boards

– Servo Section –.............................................................22

5-3. Schematic Diagram

– Servo Section –.............................................................25

5-4. Schematic Diagram

– Audio Section – ............................................................ 29

5-5. Printed Wiring Boards

– Audio Section – ............................................................ 34

5-6. Printed Wiring Boards

– Power Section –............................................................39

5-7. Schematic Diagram

– Power Section –............................................................41

5-8. Schematic Diagram

– Control Section –.......................................................... 43

5-9. Printed Wiring Boards

– Control Section –.......................................................... 45

6. EXPLODED VIEWS ................................................ 52

7. ELECTRICAL PARTS LIST................................ 56

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 objectiv e lens.

LASER DIODE AND FOCUS SEARCH OPERATION
CHECK

Carry out the “S curve check” in “CD section adjustment” and
check that the S curve waveforms 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 dam-

aged by heat.

Flexible Circuit Board Repairing

• Keep the temperature of the soldering iron around 270 ˚C dur-

ing 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.

CAUTION

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

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.

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.

– 2 –

SECTION 1

e

SERVICING NOTES

1-1. WRITING FOCUS/TRACKING AUTO GAIN

DATA

In general for the CD players that use a digital servo IC, the focus/
tracking gain is automatically adjusted each time a disc is changed.
In this set, the gain in test disc (YEDS-18) has been written to a
nonvolatile memory (IC803: X24C01S) on the Display Board, and
therefore the gain is not readjusted even if a disc is changed.
Accordingly , always write auto gain data when replacing the Servo
Board, IC803 on Display Board, or optical pick-up.

1) Connect CN805 1 pin (IN/OUT SW) and 6 pin (GND) on
Display Board.
Under this condition, the set will operate even when the disc lid
is open (or Key Board is not connected).

2)Connect TP (ADJ: CN105 3 pin) on Servo Board to GND, and
TP (VC: CN108 2 Pin) to TP3 (TEI: IC105 @¶ pin) with lead
wires respectively.

3)Connect an oscilloscope to TP (TE: CN108 1 pin).

Oscilloscop

SERVO board

TP (TE)
TP (VC)

4) Insert the test disc (YEDS-18), turn on POWER switch, and
play fifth music with · (PLAY) and AMS Keys on the
Remocon.

5)Adjust RV101 so that the w aveform on oscilloscope is v erticolly
symmetric with respect to the A [Vdc], and also its le vel is 1.3 ±

0.6 Vp-p.

+
–

1-2. AF MODE

With the TP (AFJ: CN105 2 Pin) connected to the GND on Serv o
Board, turn on the POWER switch, and the AF mode is activated
and the following checking can be made.

1-2-1. FL tube check

All tubes turn on, then if · button is pressed, the display will be
as shown below. (Segment ON 1)

(Segment ON 1)

IF P button is pressed, the display will be as shown below. (Seg­ment ON 2)

2

6

12

16

If STOP p is pressed, all tubes turn on again.

18

4

8

14

10

20

(Segment ON 2)

B

0Vdc

A

symmetric

level: 1.3 ± 0.6 Vp-p

At this time, A/B × 100 = ± 22 (%) or less

6) The auto gain data are written when a lead wire between TP
(ADJ: CN105 3 pin) and GND is removed.

Note:If the POWER switch was turned on without connecting TP

(ADJ) to the GND, auto gain data are not written to the
memory even if a disc is inserted, but the pre vious data saved
in the memory are used as focus/tracking data.

– 3 –

1-2-2. key check

All buttons are assigned with numbers respectively
If a button is pressed, the number is counted up and the button
number is displayed.

Button number display

Button name Button number display

+ 88
= 01
) 02
0 03
PLAY · Segment ON 1
P Segment ON 2
p All ON

1-2-3. Remocon check

Press · button on the Remocon, and “ · ”on FL tube turns
on. If any other buttons are pressed, all tubes will turn off.

[DISPLAY BOARD] – Conductor Side –

CN805

71

6

GND

IC801

[SERVO BOARD] – Conductor Side –

CN105

321

CN106

(ADJ)

(AFJ)

IC105

(GND)

IC106

IN/OUT SW

CN107

IC107

TP3

(TEI)

(TE)

(VC)

RV101

CN108

1
2
3

1-3. ADJ MODE

With CN105 3 pin connected to 1 pin on the Servo Board, turn
on the POWER switch, and the ADJ mode is activated where the
following operation is executed.

• GFS, e v en if low continuously during playing, will cause noth­ing.

• High speed servo is disabled during an access.

• Gain of focus servo and spindle servo is not lowered.

• Manual operation and measurement for servo system are en­abled. (For detailed operation method, see the button function
table in ADJ mode.)

1-4. CLV-S MODE

Connect TP1(ADJ) to the GND after turning on the POWER
switch, and the spindle servo becomes CLV-S mode during play­ing.

Button function table in ADJ mode

With the TIME key, the jitter value display mode is activated
after all music remaining mode.
The number buttons have the functions as listed below.

Functions of number buttons
(on Remocon attached)

Buttons Functions

1 Increase focus bias by 8 steps
2 Adjust focus bias to the center
3 Turn off tracking servo and sled servo
4 Initialize auto gain
5 Turn off focus servo
6 Decrease focus bias by 8 steps
7 Readjust focus bias there
8 Turn on tracking servo and sled servo

10 Return auto focus bias to start point

– 4 –

SECTION 2

GENERAL

This section is extracted
from instruction manual.

– 5 –

– 6 –

– 7 –

– 8 –

– 9 –

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

(Pag

)

SECTION 3

DISASSEMBLY

TOP PLATE ASS’Y
(Page 10)

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

BASE UNIT
(Page 11)

BACK PANEL ASS’Y
(Page 13)

FRONT PANEL ASS’Y

e 11

TOP PLATE ASS’Y

1

two ornamental screws

SLED MOTOR
(Page 12)

MAIN BOARD
(Page 13)

2

top plate ass’y

OPTICAL PICK-UP
(Page 12)

1

two ornamental screws

3

connector
(CN805)

– 10 –

FRONT PANEL ASS’Y

1

4

two hexagon socket screws
(M3

×

8)

connector
(CN801)

2

three connectors
(CN111-113)

3

connector
(CN941)

4

two hexagon socket screws
(M3

×

BASE UNIT

4

four screws
(B2.6

5

four holders (SP)

6

base unit

7

two compression
springs (BU)

8)

5

front panel ass’y

2

screw
(BVTT3

×

6)

×

6)

3

lug

1

flat wire (23 core)
(CN301)

– 11 –

7

two compression springs (BU)

SLED MOTOR

1

flat wire (16 core)
(CN109)

6

two precision screws
(P1.7

×

2.5)

0

sled motor

9

Removal
two solders.

5

flat wire (6 core)
(CN107)

4

SERVO board

8

SLED board

OPTICAL PICK-UP

3

screw
(BVTT3

5

Remove the optical
pick-up to direction
of the arrow

A

3

four screws
(B2.6

×

5)

7

screw
(BVTT2.6

×

8)

×

8)

4

leaf spring (OP)

A

2

flat wire (7 core)
(CN109)

1

claw

2

sled shaft

– 12 –

BACK PANEL ASS’Y

1

connector
(CN942)

4

two ornamental screws
(M3

×

8)

6

bracket (SIDE)

5

three screws
(BVTT3

6

bracket (SIDE)

×

6)

7

back panel ass’y

2

five connectors
(CN204-206, 402, 502)

5

four screws
(BVTT3

3

Removal the
solder.
(JW2)

×

6)

MAIN BOARD

2

two connectors
(CN901, 902)

5

two rivets

3

screw
(BVTT4

4

two ornamental screws
(M3

×

8)

1

flat wire (23 core)

×

6)

4

lug

(CN301)

3

screw
(BVTT4

3

6

MAIN board

×

6)

screw
(BVTT3

×

6)

– 13 –

SECTION 4

ELECTRICAL ADJUSTMENTS

Note:

1. CD block is basically designed to operate without adjustment.

Therefore, check each item in order given.

2. Use YEDS-18 disc (Part No.: 3-702-101-01) unless otherwise

indicated.

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

4. Clean an object lens by an applicator with netural detegeent

when the signal level is low than specified value with the fol­lowing checks.

S-Curve Check

Connection

oscilloscope

SERVO board

TP5 (FE)

TP (VC)

+
–

Procedure:

1. Connect an oscilloscope to TP5 (FE: IC107 !∞ pin) on SER V O

board.

2. Connect TP4 (FEI: IC105 @ª pin) and TP (VC: CN108 2

pin) on Servo board with a lead wire.

3. With the disc (YEDS-18) loaded, turn ON the PO WER switch

to execute focus searching.

4. In such a case, confirm the symmetry and level (p-p value) of

the waveform (S-curve) on the oscilloscope.

S-curve waveform

symmetric

E-F Balance (Traverse) Check

Connection:

oscilloscope

(DC range)

SERVO board

TP (TE)
TP (VC)

+
–

Procedure:

1. Connect TP (ADJ: CN105 3 pin) on Servo Board to GND,
and TP3 (TEI: IC105 @¶ pin) to TP (VC: CN108 2 pin) with
lead wires respectively.

2. Connect on oscilloscope to TP (TE: CN108 1 pin).

3. Turn ON the POWER switc h.

4. Load the disc (YEDS-18) and press · (PLAY) button.

5. Confirm that a waveform on oscilloscope is vertically sym­metric to A[Vdc], and also its level is proper.

Traverse waveform

B

0Vdc

A

symmetric

level: 1.3 ± 0.6 Vp-p

At this time, A/B × 100 = ± 22 (%) or less

A

within 3.0 ± 1.0 Vp-p

B

5. After check, remove the lead wire connected in step 2.
Note: • Try to measure several times to make sure that the ratio

of A: B or B: A is mor e than 10: 7.

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

RF Level Check

Connection:

SERVO board

TP (RFO)

TP (VC)

oscilloscope

(AC range)

+
–

Procedure:

1. Connect an oscilloscope to the TP (RFO: CN108 3 pin)

2. Turn ON the POWER switc h.

3. Load the disc (YEDS-18), and play the 5th music with ·
(PLAY) and AMS Keys.

4. Confirm that a wa veform and RF le vel on the oscilloscope are
proper.

Note: Clear RF signal waveform means that the shape “≈” can

be clearly distinguished at the center of the waveform.

6. After check, remove the lead wire connected in step 1.

RF PLL Free-run Frequency Check

SERVO board

TP (XPLCK)

Frequency counter

+
–

1. Connect a frequency counter to the TP (XPLCK: CN106 1
pin).

2. Turn ON the POWER switc h.

3. Load the disc (YEDS-18) and press · (PLAY) button.
Confirm that the frequency at TP (XPLCK) is 4.3218MHz.

FOCUS/TRACKING AUTO GAIN DATA SETTING

Refer to 1-1. Writing focus/tracking auto gain data on page 3.

RF signal waveform

VOLT/DIV: 200 mV
TIME/DIV: 500 ns
(with the 10 : 1 probe
in use)

level: 1.2 Vp-p

+0.25
–0.20

– 14 –