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13

Button

Button Number or Display

CONTINUE

2

SHUFFLE

1

PROGRAM

0

REPEAT

9

MENU

5

DISC1

14

DISC2

13

DISC3

12

DISC4

11

DISC5

10

H (PLAY)

Partial lighting 1 (Grid check)

X (PAUSE)

26

x (STOP)

Partial lighting 2 (Segment check)

EX-CHANGE

17

DISC SKIP

16

A OPEN/CLOSE

All lit (LED lighting)

AMS (button)

30

AMS (knob)

When rotated clockwise: The music calendar
numerals light up in ascending order.
When rotated counterclockwise: The music
calendar numerals light up in descending
order.

MEGA CONTROL

22

X-FADE

28

NO DELAY

29

CLEAR

18

CHECK

19

M

20

m

21

PEAK SEARCH

3

EDIT/TIME FADE

4

TIME/TEXT

8

FADER

6

R

Light altemately

r

R

Light altemately

r

14

For the aging mode, three modes of all mode, disc table mode, and loading mode are available.

This set has the Aging mode for operation check of the mechanism deck.
• If a failure occurred

The aging operation stops and a faulty status is displayed on the fluorescent indicator tube.

• If no failure occurs

The aging operation continues repeatedly.

Do not use the test disc when performing aging.
Aging will not be performed properly if discs with tracks shorter than 4 seconds are used.

(When using the aging remote controller (J-2501-123-A):
1. Set the remote controller 

[CD1/2/3]

 switch to CD1.

2. Press the 

[POWER]

 button and turn ON the power.

3. Set discs on all trays.

(More than two discs if five are not available.)

4. Press the 

[AGING START]

 button of the aging remote controller.

5. Aging starts and the fluorescent indicator tube will display the following.
6. To exit the mode, press the 

[POWER]

 button to turn OFF the power.

(When no aging remote controller):
1. Press the 

[POWER]

 button and turn ON the power.

2. Set discs on all trays.

(More than two discs if five are not available.)

3. All mode:

Press the 

[CONTINUE]

,

x

and 

[CHECK]

 buttons at the same time.

Disc table mode:
Press the 

[CONTINUE]

,

x

and 

[DISC SKIP]

 buttons at the same time.

Loading mode:
Press the 

[CONTINUE]

,

x

and 

[EX-CHANGE]

 buttons at the same time.

4. Aging starts, and the fluorescent indicator tube will display the following.
5. To exit the mode, press the 

[POWER]

 button to turn OFF the power.

Code No.

Status

All mode

Disc table

Loading

Display in

Display in

mode

mode

Normal operation

case of failure

0

CLOSE (Tray closed)

a

a

A-0

NG 0

1

TOC reading

a

a

a

A-1

NG 1

2

Access to last track

a

A-2

NG 2

3

Play of last track (3 sec)

a

Counter display

NG 3

4

EX OPEN (Tray opened while chucking)

a

a

A-4

NG 4

5

EX SKIP (Disc tray rotated)

a

A-5

NG 5

6

EX CLOSE (Tray closed)

a

a

A-6

NG 6

7

Access to first track

a

A-7

NG 7

8

Play of first track (3 sec)

a

Counter display

NG 8

9

OPEN (tray opened)

a

a

A-9

NG 9

A

DISC SKIP (Disc tray rotated,

a

a

A-A

NG A

and next disc was selected)

The discs are selected in the order of DISC 1 

→

 DISC 2 

→

 DISC 3 

→

 DISC 4 

→

 DISC 5 

→

 DISC 1....Empty trays are skipped.

15

For the mechanism deck check mode, two modes of disc table mode and loading mode are available.
In the mechanism deck check mode, the disc table turning time and the loading time in each section are measured and displayed.

1. Disc table mode:

Press the 

[POWER]

 switch while pressing 

[CHECK]

, 

[    OPEN/CLOSE]

 and  

[REPEAT]

 buttons simultaneously.

Loading mode:
Press the 

[POWER]

 switch while pressing 

[CHECK]

, 

[    OPEN/CLOSE]

 and  

[TIME]

 buttons simultaneously.

A

A

Display contents

Mode

Check command

Display

Disc table mode

0: Right one turn

R 12.5

L – – .–

Table turning

1: Left one Turn

R 12.5

L 10.2

(

 time measurement 

)

2: Measurement end

R12.5

L 10.2

3: Undefined

4: Star position

START

– – .–

5: Open 

→

 Close

CLOSE

10.2

6: Close 

→

 BU up

BU UP

0.7

Table mode

7: BU up 

→

 EX open

EX OPEN

6.2

Loading time

8: EX open 

→

 EX close

EX CLOSE

10.3

(

 measuremnet 

)

9: EX close 

→

 BU down

BU DOWN

1.2

A: BU down 

→

 Open

OPEN

9.3

FF: Measurement end

CLOSE

10.2

16

1. CD Block is basically designed to operate without adjustment.  There-

fore, 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 10 M

Ω

 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.

Procedure:
1. Connect oscilloscope to TP (FE) and TP (VC) on the BD board.
2. Connect between TP (FE1) and TP (VC) with lead wire.
3. Connect between TP (AGCCON) and TP  (GND)  with lead

wire.

4. Turned power switch (

[POWER]

 button) on.

5. Load a disc (YEDS-18) and actuate the focus search. (In con-

sequence of open and close the disc tray, actuate the focus
search)

6. Cofirm that the oscilloscope waveform (S-curve) is symmetri-

cal between A and B.  And confirm peak to peak level within
4 ± 1 Vp-p.

S-curve waveform

7. After check, remove the lead wire connected in step 2 and 3.

• 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.

Procedure:
1. Connect oscilloscope to TP (RF) and TP (VC) on BD board.
2. Connect between TP (AGCCON) and TP (GND) with lead

wire.

3. Turned power switch (

[POWER]

 button) on.

4. Load a disc (YEDS-18) and playback.
5. Confirm that the oscilloscope waveform is clear and check RF

signal level is correct or not.

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

Clear RF signal waveform means that the shape “

◊

” can be clearly

distinguished at the center of the waveform.

Procedure :
1. Connect oscilloscope to TP (TE) and TP (VC) on BD board.
2. Turned power switch (

[POWER]

 button) on.

3. Load a disc (YEDS-18) and playback the number five track.
4. Press the

H

button. (Becomes the 1 track jump mode)

5. Confirm that the level B and A (DC voltage) on the oscillo-

scope waveform.

1 track jump waveform

Specified level:          

×

 100 = less than ± 22%

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

Procedure :
1. Connect frequency counter to TP (PLCK) with lead wire.

2. Turned power switch (

[POWER]

 button) on.

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

Confirm that reading on frequency counter is 4.3218 MHz.

A
B

±

±

±

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