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*3 Aging cycle count function:

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

TRACK

1

DISC

51

MIN SEC

0.02

1

1 DISC

CD1

Disc number

Track number

Agings carried
(Hexadecimal)

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.)

7. Press the  

·  button.

8. The  

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

9. 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.)

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

cent indicator tube will increase.

12. To end aging, press the  POWER  button

1

1 DISC

CD1

Disc number

1Err* 01

DISC

40

Error code

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

≠  , 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 chucking 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

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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 AUDIO board.

MAIN board
TP501

GND
TEST
SENS

SENS (CH1)

TEST (CH2)

GND

oscilloscope

3. While pressing the  CLEAR  and  PLUS ONE  buttons at the same time and turn ON the power.

POWER switch

PLUS ONE button

≠

 button

±

 button

CLEAR button

CHECK button

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

PLUS ONE

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.

DISC No.

Rotation time

**

3.8

DISC

51

Blinks

SEC

— 23 —

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

(CH2) coincide.

TEST (CH2) waveform

SENS (CH1) waveform

Flat portion center of
SENS (CH1) waveform

Fixed screw

Holder (sensor)

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 SENS

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

Note: 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.

ON

OFF 51

IN

Loading OUT
SW condition

Loading
direction

Loading IN
SW condition

— 24 —

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.

A

B

Magnet ASSY

Magnet holder

Magnet ASSY

Screw (For adjustment)

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  ∏º 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.

Disc

Disc holder A

Screw (For adjustment)

Disc

Disc holder A

a b

a = b