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Note : Follow the disassembly procedure in the numerical order given.

3 Two screws (BVTT 3x6)

2 Three screws (BVTT 3x6)

4 Flat type wire (CN601)

1 Connector

3 Five screws

4 Screw

2 Four screws (BVTT 3x6)

6 Back panel

5 Remove the PC board holder

7 Front panel assembly

1 Two screws

6 Remove the claw

5 Remove the claw

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1 Stop ring (E type)

2 Two screws

7 Washer

6 Table assembly

3 Two holder assemblies

4 Three screws (BVTT3x6)

5 Three holder assemblies

1 Four screws (BVTT3x6)

3 Connector

5 Guide

4 Connector

2  Screw

6 Flat type wire

9 Nine screws (BVTT3x8)

!º Mechanism deck

7 Connector

8 Connector (CN504)

— 11 —

1 Screw (BVTT3x6)

2 Fulcrum plate

3 Base unit

— 12 —

With the power turned off (standby state), press the POWER button
while pressing the 

P (pause) button.

All FL segments and grids light up together with the 

· (play), P

(pause), and standby LEDs.
At the same time, the GROUP LEDs are scanned one by one.

Note: To exit this mode, press the POWER button.

1. Turn ON the power of the unit, set disc to disc table, and perform

chucking.

2. Disconnect the power supply plug from the outlet.
3. To set ADJ mode, connect the test point (TP301:ADJ) of the MAIN

board to Ground, and turn on the power supply plug to the outlet.

The power will turn on automatically, and the first track will be played.
In this mode, table rotation and loading operations are not performed
because it is taken that the disc has already been chucked.

Note: The same operations are also performed in the following when

the test point (TP301:ADJ) is connected to Ground after turn-
ing on the power.

• Direct search (movement of sledding motor) is not performed dur-

ing accessing

• Ignored even when GFS becomes L
• Ignored even when the Q data cannot be read
• Focus gain does not decrease
• Spindle gain does not decrease
• Servo related settings can be set manually and checked (Refer to

ADJ Mode Special Functions Table)

To set this mode, connect the test point (TP302:AFADJ) on the MAIN
board to Ground, and turn on the power supply plug to the outlet.

• All FL segments and grids will light up. (All lit check)

When a button is pressed, the types of buttons pressed until then
will be displayed on the left side and the number of the buttons will
be displayed on the right side. However, these will not be displayed
for the following special buttons.

p(stop) button:

FL segment check
(Refer to FL Tube Check Patterns)

P(pause) button: FL grid check (Refer to FL Tube Check Patterns)

The pause LED also lights up simultaneously.

·(play) button: All FL segment and grid will light up

The play LED also lights up simultaneously.

2

PROGRAM

REPEAT 1

REMOTE

1

Grid check

• When the jog dial is rotated to the right, the Block indicators of FL

light up in the order of 1

n2..8n1.

• When the jog dial is rotated to the left, the Block indicators of FL

light up in the order of 8

n7..1n8.

• The standby LED lights up when the door switch is shut.

• Abbreviation
  FL: Fluorescent Indicator Tube

Button

CONTINUE

SHUFFLE

PROGRAM

BLOCK 1 (1)
BLOCK 2 (2)
BLOCK 3 (3)
BLOCK 4 (4)
BLOCK 5 (5)
BLOCK 6 (6)
BLOCK 7 (7)
BLOCK 8 (8)

(9)

(10/0)

CHECK

CLEAR

Function

Servo average display
Displays VC, FE, RF, TE and traverse in hexadecimal
numbers

Focus bias display

Each time this is pressed, the focus bias is switched
between 1 and 2

(1)
Bias actually set     Optimum bias     Minimum jitter
(2)
U:Upper aliasing bias     L:Lower aliasing bias

Auto gain display

Displays focus, tracking, sledding in hexadecimal
numbers

Increases the focus bias in 8 steps.
Sets the focus bias in the middle of aliasing.
Turns off the tracking and sledding servo
Returns the auto gain to the initial value (30)
Turns off the focus servo
Decreases the focus bias in 8 steps.
Re-adjusts the focus bias
Turns on the tracking and sledding servo
Switches the focus servo gain between normal and down
08: normal, 0C: down
Sets the focus bias to 0 (no bias)
Next, displays the jitter measured at the focus bias set
S-curve observation mode
Automatic eccentric measurement
The results of measurement is displayed in 

µ

m directly.

Segment check

— Component Side —