DOWNLOAD Sony CDP-CX57 Service Manual ↓ Size: 3.26 MB | Pages: 58 in PDF or view online for FREE

– 13 –

*3 Aging cycle count function:

Functions which displays the number of agings carried out on
the Fluorescent indicator tube  in numbers. One aging cycle
consists of six discs.

Contents

Name

Code number

No disc in the specified slit

Disc in other slits

No function

No table sensor input

Load in timeover

Load out timeover

Access timeover

High speed search NG

Q data read error

BU operation (From focus search to until signal can be read) timeover

GFS monitor error

Focus cannot be imposed by focus search

DISC sensor check 1

DISC sensor check 2

Table operation check 2

Loading operation check 1

Loading operation check 2

BU related check 1

BU related check 2

BU related check 3

BU related check 4

BU related check 5

BU related check 6

Err 01

Err 02

Err 03

Err 04

Err 05

Err 06

Err *1

Err *2

Err *3

Err *4

Err *5

Err *6

Some operating method will be changed depending on if the fol-
lowing jig for the aging mode exists or not.

• Jig

Parts. No

Description

J-2501-123-A

Remote commander (For aging mode)

With remote commander for aging mode:
1. Turn ON the power of the unit. Open the front cover.
2. Press the 

[AGING START]

 button of the remote commander for

aging mode.

3. When the disc set mode is set, the  

·  and  P  LEDs blink.

4. Rotate the JOG dial. The slits (No. 10, 20, 30, 40, 51) for setting

the discs will come forward. Insert the discs into these slits. Do
not set the discs in other slits.

5. Set the use/disuse of the self protection function in errors. Press

the 

[REPEAT]

 button. When REPEAT is displayed on the fluo-

rescent indicator tube, the self protection function during the
error will become “Use”.
If the REPEAT display is OFF, it means that the function is not
used. (Normally set to “Use” when performing aging.)

6. Press the  

·  button.

7. The  

·  LED blinks, the aging mode is set, and aging is started.

8. The aging cycle lasts 3 minutes. When problems occur during

aging, the error number will be displayed on the fluorescent in-
dicator tube, and the  

P  LED will light up.

(Refer to the following table for the details of the errors.)

9. Aging will be repeated as long as no errors occur.
10. After each aging cycle, the number displayed on the Fluores-

cent indicator tube will increase.

11. To end aging, press the

I

/

u

button

Without remote commander for aging mode:
1. Turn ON the power of the unit. Open the front cover.
2. Press the 

[PLAY MODE]

,  

·  , and  ≠  buttons in order.

3. When the disc set mode is set, the  

·  and  P  LEDs blink.

The following procedure is the same as in the case “With remote
commander for aging mode”.

The * numbers mean the following according to the state of the unit during aging

2 : From checking to end of TOC read
3 : From end of TOC read to end of last track playback
4 : From end of last track playback to end of first track playback

1 DISCS

TRACK

MIN

SEC

DISC

CD1

5 1

1

1

0 . 0 2

Disc number

Aging carried

(Hexadecimal)

Track number

1 DISCS

DISC

CD1

4 0

1

1Err*01

Disc number

Error code

– 14 –

To adjust the mechanism section, enter the mechanism section adjustment mode.
For how to enter the mechanism section adjustment mode, refer to each adjustment section.

1. Make sure that there is no disc in the unit.
2. Connect an oscilloscope to TP501 of the MAIN board.

3. While pressing the 

[CLEAR]

 and 

[PLUS ONE]

 buttons at the same time and turn ON the power.

4. The fluorescent indicator tube shows as follows, and the mechanism section adjustment mode is set.

5. The disc table rotates in the clockwise direction. The disc table rotation time is displayed with ‘’PLUS ONE” slit as a measuring point.
6. Press the 

[CLEAR]

 button, to be rotated the disc table counterclockwise.

7. Measure the waveform of the oscilloscope when the disc table is rotating.

GND

oscilloscope

HHOUT
D.SENS

D.SENS (CH1)

HHOUT (CH2)

GND

MAIN board
TP501

CHECK button

CLEAR button

PLUS ONE button

≠

 button

±

 button

I/

u

 button

ª

P

51

7

3

* *

.

ALL DISCS

DISC

CD1

SEC

DISC No.

Lit according to rotational direction

Blinks

PLUS ONE

– 15 –

8. Move the holder (sensor) center so that the flat portion center at the top of the D.SENS (CH1) input waveform and the ‘’H” center of

HHOUT (CH2) coincide.

9. Tighten the fixed screw to fix the disc table, then press the 

[CLEAR]

 button.

10. The disc table rotates in the clockwise direction. Measure the waveform and make sure that the flat portion center at the top of the

D.SENS (CH1) input waveform and the ‘’H” center of HHOUT (CH2) conform.

During the adjustment mode, the rotational direction is switched each time the 

[CLEAR]

 button is pressed.

Pressing the 

[CHECK]

 button enters the loading mode which will be described later. Pressing the 

[CLEAR]

 button rotates the disc table again.

HHOUT (CH2) waveform

D.SENS (CH1) waveform

Flat portion center of
D. SENS (CH1) waveform

Fixed screw

Holder (sensor)

51

O N

I N

O F F

ALL DISCS

DISC

CD1

Loading OUT
SW condition

Loading
direction

Loading IN
SW condition

– 16 –

1. Check that there is no disc in the unit and then turn ON the power. Open the door, and set a disc in the PLUS ONE slit.
2. Turn OFF the power, close the door, and while pressing the 

[CLEAR]

 and 

[PLUS ONE]

 buttons simultaneously, turn ON the power

again.

3. Press the 

[CHECK]

 button, and set the loading mode.

4. Press the  

±  button and chuck the disc.

5. Adjust the magnet assembly and magnet holder so that A=B as shown in the figure.

1. Check that there is no disc in the unit and then turn ON the power. Open the door, and set a disc in the PLUS ONE slit.
2. Turn OFF the power, close the door, and while pressing the 

[CLEAR]

 and 

[PLUS ONE]

 buttons simultaneously, turn ON the power

again.

3. Press the 

[CHECK]

 button, and set the loading mode.

4. Press the  

±  button and chuck the disc.

5. Press  

≠  or  ±  button to stop the disc holder A slightly away from the disc.

6. Rotate and adjust the adjusting screw so that the center of the disc and that of the disc holder coincide.

Magnet ASSY

Magnet ASSY

Magnet holder

Screw (For adjustment)

A   B

Disc

Disc

Disc holder A

Disc holder A

a  b

a = b

Screw (For adjustment)