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– 21 –

1

two step screws

2

two insulators

1

two step screws

2

two insulators

part 

A

NG

OK

Take care so that the part 

A

may be right position when installing.

part 

A

3

sub chassis

part 

A

1

flexible board
(over write head)

3

screws (BVTT2 

×

 4)

5

BD board

4

OP relay
flexible board
(CN101)

2

flat cable (15 core)
(CN106)

– 22 –

2

over write head

1

screw (P1.7 

×

 6)

1

stopper washer

2

shaft (shutter) A

3

shutter ass’y

shutter ass’y

shaft (shutter) B

hole B

hole A

When installing, install the shaft (shutter) A
into the hole as show in the figune before
installing the shaft (shutter) B into the hole B.

shaft (shutter) A

– 23 –

•

Install the part A of lever (head up)
to pass over the slider complete ass’y.

part A

OK

NG

Take care not to damage
the detective switch.

slider ass’y

claw

claw

45

°

3

Set the shaft of gear (LA) to be at the
position in the figure.

2

retainer (gear)

4

Remove the slider complete ass’y
in the direction of arrow with putting
out of two claws.

1

special screw
(M1.7 

×

 1.4)

– 24 –

1. As loading related operations will be performed regardless of

the test mode operations being performed, be sure to check
that the disc is stopped before setting and removing it.  Even if
the  

§ EJECT button is pressed while the disc is rotating dur-

ing continuous playback, continuous recording, etc., the disc
will not stop rotating.  Therefore, it will be ejected while ro-
tating.  Be sure to press the

§ EJECT button after pressing

the  EDIT/NO  button and the rotation of disc is stopped.

2. The erasing-protection tab is not detected in the test mode.

Therefore, operating in the recording laser emission mode and
pressing the  

r REC  button, the recorded contents will be

erased regardless of the position of the tab.  When using a disc
that is not to be erased in the test mode, be careful not to enter
the continuous recording mode and traverse adjustment mode.

1. Continuous recording mode (CREC MODE)
2. Traverse adjustment mode (EFBAL ADJUST)
3. Laser power adjustment mode (LDPWR ADJUST)
4. Laser power check mode (LDPWR CHECK)
5. When pressing the

r REC button.

With the power supply to the set in OFF (standby) status, while
pressing the CD SYNC button simultaneously, insert the power
cord of TA-EX77 (pre/main amplifier system) or power feed jig
(PFJ-1) into the power outlet, then release the button.

Press the  REPEAT  button, and the power is turned OFF (standby
status), and the set becomes ready for normal operation.

All operations are performed using the  SELECTOR  knob,
EDIT/NO button, and ENTER/YES button.  The functions of
these buttons and knob are as follows.

Thirteen test modes are selected by turning the SELECTOR knob.

•

For detailed description of each adjustment mode, refer to the
“5. ELECTRICAL ADJUSTMENTS”.

•

If a different adjustment mode has been selected by mistake,
press the  EDIT/NO  button to exit from it.

*1: The EEP MODE, Scurve CHECK, MANUAL CMD and

SVDATA READ are not used in servicing.  If set accidentally,
press the  EDIT/NO  button immediately to exit it.

Display

Contents

TEMP ADJUST

Temperature compensation offset
adjustment

LDPWR ADJUST

Laser power adjustment

LDPWR CHECK

Laser power check

EFBAL ADJUST

Traverse (E-F balance) adjustment

FBIAS ADJUST

Focus bias adjustment

FBIAS CHECK

Focus bias check

CPLAY MODE

Continuous playback mode

CREC MODE

Continuous recording mode

DETRK CHECK

Detrack check

Scurve CHECK

S curve check (*1)

EEP MODE

Non-volatile memory mode (*1)

MANUAL CMD

Manual command transfer mode (*1)

SVDATA READ

Data reading out mode (*1)

Button & Knob

Function

ENTER/YES
button

Proceeds onto the next step.
Finalizes input.

EDIT/NO button

Returns to previous step.
Stops operations

Changes parameters and modes.

SELECTOR
knob