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SECTION 5
TEST MODE
5-1.
ADJ MODE
1. Turn ON the power of the unit, set disc to disc table, and per-
form chucking.
2. Remove the power cord from the outlet.
3. To set ADJ mode, connect the
^¡
pin of IC501 (ADJ) of the
MAIN board to ground, and connect the power cord to the
outlet.
In this mode, table rotation and loading operations are not per-
formed because it is taken that the disc has already been chucked.
Note:
The same operations are also performed in the following when the
^¡
pin of IC501 (ADJ) is connected to ground after turning on the
power.
• Direct search (movement of sledding motor) is not performed
during accessing
• Ignored even when GFS becomes L
• Ignored even when the Q data cannot be read
• Focus gain does not decrease
ADJ Mode Special Functions Table
5-2.
KEY AND DISPLAY CHECK MODE
To set this mode, connect the
^º
pin of IC501 (AFADJ) on the
MAIN board to ground, and connect the power cord to the outlet.
Note:
When this mode is executed, all title memos recorded will be erased.
• When this button is pressed, “line # No. #” will be displayed. However,
these will not be displayed for the following special buttons. 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
P
LED also lights up simulta-
neously.
·
(play) button : All FL segment and grid will light up.
·
LED also lights up simultaneously.
TIMER switch
: When the switch position is
[PLAY]
, the
[STANDBY]
LED lights up. It goes OFF
when set to
[OFF]
.
Each time this button is pressed, the value of the “Go+ ## keys”
increases. Buttons pressed once will not be counted when pressed
again.
FL Tube Check Patterns
Segment check
Grid check
• When the jog dial is rotated to the right, the GROUP LEDs light
up in the order of 1
n
2..8
n
HIT LIST
n
EASY PLAY
n
MEGA
CONTROL
n
1.
• When the jog dial is rotated to the left, the GROUP LEDs light
up in the order of 8
n
7..1
n
MEGA CONTROL
n
EASY
PLAY
n
HIT LIST
n
8.
• Abbreviation
FL: Fluorescent Indicator Tube
Button
CONTINUE
SHUFFLE
PROGRAM
GROUP 3 (3)
GROUP 8 (8)
CHECK
Function
Servo average display
Displays VC, FE, RF, TE and traverse in hexadeci-
mal 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
Turns off the tracking and sledding servo
Turns on the tracking and sledding servo
S-curve observation mode.
(Release this mode when the
1
/
u
button is pressed.)
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Magnified
A B C D E F G
R517
GND
IC501
50
26
25
75
76
100 1
51
^¡
pin (AFADJ)
^º
pin (ADJ)
R516
• Checking Location
– MAIN BOARD (Conductor Side) –
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