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— 13 —

1

two screws
(PTPWH M2.6 

×

 6)

3

two springs

5

screw
(BVTP 2.6 

×

 8)

7

BD board

4

flat wire (16 core)
(CN102)

3

two springs

2

optical pick-up
section

1

two screws
(PTPWH M2.6 

×

 6)

6

Removal
four solders.

limit switch
(S101)

3

optical pick-up (KSS-213D/Q-NP)

6

spindle motor
(M101)

2

sled shaft

1

claw

5

sled motor
(M102)

4

two screws
(P2 

×

 3)

— 14 —

5

two screws
(BTP 2.6 

×

 8)

7

Removal the capstan motor (M1)
to direction of the arrow 

B

.

4

Break the soldering
of motor lead.

6

claw

8

Hang two belts.

3

Removal the AUDIO board
to direction of the arrow 

A

.

2

four screws
(BTP 2.6 

×

 4)

1

connector
(CN651)

A

B

— 15 —

•

The cold reset clears all data including preset data stored in the
RAM to initial conditions. Execute this mode when returning
the set to the customer.

Procedure:
1. Press three buttons GROOVE ,  ENTER/NEXT , and

DISC 1 simultaneously.

2. The fluorescent indicator tube becomes blank instantaneously,

and the set is reset.

•

This mode moves the pick-up to the position durable to vibration.
Use this mode when returning the set to the customer after repair.

Procedure:
1. Press

1/u button to turn the set ON.

2. Press PLAY MODE button and

1/u button simultaneously.

3. A message “LOCK” is displayed on the fluorescent indicator

tube, and the CD delivery mode is set.

•

This mode resets the set with the preset data kept stored in the
memory.  The hot reset mode functions same as if the power
cord is plugged in and out.

Procedure:
1. Press three buttons GROOVE , ENTER/NEXT , and

DISC 2 simultaneously.

2. The fluorescent indicator tube becomes blank instantaneously,

and the set is reset.

•

This mode can run the CD sled motor freely. Use this mode, for
instance, when cleaning the pick-up.

Procedure:
1. Select the function “CD”.
2. Press three buttons GROOVE , ENTER/NEXT , and

CD FLASH  simultaneously.

3. The Sled Servo mode is selected, if “CD” is blinking on the

fluorescent indicator tube.

4. With the CD in stop status, press

) button in CD section to

move the pick-up to outside track, or

0 button to inside track.

5. To exit from this mode, perform as follows:

1) Move the pick-up to the most inside track.
2) Press three buttons in the same manner as step 2.

Note:
•

Always move the pick-up to most inside track when exiting
from this mode.  Otherwise, a disc will not be unloaded.

•

Do not run the sled motor excessively, otherwise the gear can
be chipped.

•

A step of AM channels can be changed over between 9 kHz and
10 kHz.

Procedure:
1. Press  

1/u button to turn the set ON.

2. Select the function “TUNER”, and press TUNER/BAND

button to select the BAND “AM”.

3. Press

1/u button to turn the set OFF.

4. Press ENTER/NEXT and

1/u buttons simultaneously, and

the display of  fluorescent indicator tube changes to “AM 9 k
STEP” or “AM 10 k STEP”, and thus the channel step is changed
over.
Be sure not to change with carelessness.

Procedure:
1. Press three buttons GROOVE , ENTER/NEXT , and

DISC 3 simultaneously.

2. LEDs and fluorescent indicator tube are all turned on.

Press DISC 2 button, and the key check mode is activated.

3. In the key check mode, the fluorescent indicator tube displays

“K 1 J0 V0”.  Each time a button is pressed, “K”value increases.
However, once a button is pressed, it is no longer taken into
account.
“J” value increases like 1, 2, 3 ... if rotating JOG dial knob in
“clock wise”  direction, or it decreases like 0, 9, 8 ... if rotating
in “counter clock wise” direction.
“V” value increases like 1, 2, 3 ... if rotating VOLUME knob
in “+”  direction, or it decreases like 0, 9, 8 ... if rotating in “–”
direction.

4. To exit from this mode, press three buttons in the same manner

as step 1, or disconnect the power cord.

This model has the self-diagnosis function for the video and audio
decoder sections.
Immediately after the power on, the self-diagnosis function searches
each operation of IC’s around the mechanism controller (IC701).
The LED (D701) on the VIDEO board indicates their results.

[VIDEO  BOARD] (SIDE-A)

LED (D701) INDICATION

SYMPTOM

Light

No error

1 time blinking (Repeatedly)

External RAM (S-RAM) error
 (IC751)

2 times blinking (Repeatedly)

Video decoder section error
(IC201)

3 times blinking (Repeatedly)

Video RAM (D-RAM) error
(IC251)

4 times blinking (Repeatedly)

Audio decoder section error
(IC201)

IC701

IC201

D701

IC771

IC901

— 16 —

Procedure:
1. Press three buttons  GROOVE  ,  ENTER/NEXT  , and DISC 3

simultaneously.

2. LEDs and fluorescent indicator tube are all turned on.

Press   DISC 1  button, and the version check mode is activated.

3. In the version check mode, the fluorescent indicator tube displays

version information as follows.

SPEC ASIA-2

←

Press

DISC 1

↓

MC F/V V1.3

Press

DISC 1

↓

 

 

 

 Press

VC F/V V1.4

   DISC 1

Press

DISC 1

↓

GC S-V V1.0

Press

DISC 1

↓

LBT 715 VCD

4. To exit from this mode, press three buttons in the same manner

as step 1, or disconnect the power cord.

This mode can be used for operation check of CD section and tape
deck section.
•

If an error occurred:
The aging operation stops.

•

If no error occurs:
The aging operation continues repeatedly.

1. Aging Mode in CD Section
1-1.  Operating Method of Aging Mode

1. Set discs in DISC 1 and DISC 3 trays.
2. Select the function “CD”.
3. Press three buttons GROOVE , ENTER/NEXT ,

and DISC 5  simultaneously.

4. The aging mode is activated, if a changer mark on the

fluorescent indicator tube is blinking.

5. In the aging mode, the aging is executed in a sequence given

in “1-2. Operation during Aging Mode”.
The aging continues unless an alarm occurred.

6. To exit from the aging mode, press

1/u button to turn the

set OFF.

•

If a button other than buttons In CD section is pressed during
aging, the aging in the CD section is finished.

•

To execute aging to the tape deck section successively,
press

·  button in the deck A.

“AGING” is displayed on the fluorescent indicator tube.  (For
the aging in tape deck, see “2. Aging Mode in Tape Deck
Section”.

1-2.  Operation during aging Mode
In the aging mode, the program is executed in the following
sequence.

1. The disc tray turns to select a disc. (For a disc selection

sequence, see Section 1-3.)

2. TOC of disc is read.
3. The pick-up accesses to the last track.
4. Steps 1 through 3 are repeated.

1-3.  Disc Selection Sequence
•

During the aging mode, discs are selected in the following
sequence:

Disc 1 

→

 Disc 3

 

  ↑

       ↓

Disc 3

 ←

 Disc 1

2. Aging Mode in Tape Deck Section
2-1.  Operating Method of Aging Mode

1. Load a commercially available 10-minute tape into the decks

A and B respectively.
(If a 10-minute tape is not available, another tape may be
used but a cycle time will be longer.)

2. Select the function “TAPE”.
3. Rewind tapes in advance by pressing

0 button

respectively on decks A and B.

4. Press three buttons GROOVE , ENTER/NEXT ,

and DISC 5  simultaneously.

5. Press

· button on deck A.  (This button triggers the aging

mode.)

6. The aging mode is activated if “AGING A” is displayed on

the fluorescent indicator tube.

7. In the aging mode, the aging is executed in a sequence given

in “2-2.  Operation during Aging Mode”.
The aging continues unless an alarm occurred.

8. To exit from the aging mode, press

1/u button to turn the

set OFF.

2-2.  Operation during Aging Mode
In the aging mode, the program is executed in the following
sequence.

1. A tape on FWD side is played for one minute.
2. PAUSE STOP is made.
3. Recording is made for 3 minutes. (For the deck not having

the record function, the play is executed.  In this case,

·

LED does not light up.)

4. FF is executed up to the end of tape.
5. A tape is reversed, and the tape on REV side is played for

one minute.

6. PAUSE STOP is made.
7. Recording is made for 3 minutes.  (For the deck not having

the record function, the play is executed.  In this case,

ª

LED does not light up.)

8. FF is executed up to the end of tape.
9. Steps 1 through 8 are executed for the other deck.
10. Steps 1 through 9 are repeated unless an alarm occurred.

2-3.  Deck Selection Sequence
•

During the aging mode, decks are selected in the following
sequence:

Deck A (FWD) 

→

 Deck A (REV)

              ↑                        ↓

Deck B (REV) 

 ←

 Deck B (FWD)