SECTION 4
TEST MODE
DISPLAY CHECK MODEKEY AND FLUORESCENT DISPLAY TUBE CHECK
With the power turned off (standby staI/ute),button press theMODE
while pressing theP (pause) button.1. Connect the test point (TP:AFADJ) of the MAIN board to the
All FL segments and grids light up together with theá (play),Ground, and insert the power plug to the outlet to set this mode.
P (pause), and standby LEDs.First, the external SRAM is checked, and if abnormal, OSRAM
At the same time, the GROUP LEDs are scanned one by oneNG� is displayed..
If OK, the following steps are performed.
Note: To exit this mode, prp ess the(stop) button.
* Fluorescent Display Tube Check Mode
ADJ MODEThe whole fluorescent display tube lights up when the con-
1. Turn ON the power of the unit, set disc to disc tanection in step 1 is made.ble, and per-
form chucking.* Key Check Mode
2. Disconnect the power supply plug from the outlet.This mode is set when a button is pressed after the whole
3. To set ADJ mode, connect the test point (TP: ADJ) of the MAINfluorescent display tube lights.
board to Ground, and connect the power supply plug to theAll buttons have a button number.
outlet.When a button is pressed, the counter display is counted up,
and the number of that button is displayed.
The power will turn on automatically, and the first tracHowevek will ber, the counter display will only count up to 26, but
played.the number of buttons pressed will always be displayed.
In this mode, table rotation and loading operations are not per-
formed because it is taken that the disc has already been chucked.
O
Note:The same operations are also performed in the following when the
test point (TP: ADJ) is connected to Ground after turning on the****
power.
Y Direct search (movement of sledding motor) is not performed
during accessing
Counter displayButton number display
Y Ignored even when GFS becomes L
Y Ignored even when the Q data cannot be read
Buttons and Corresponding Button Numbers
Y Focus gain does not decrease
Y Spindle gain does not decreaseButtonButton Number or Display
Y Servo related settings can be set manually and checked (Refer
CLEAR3
to ADJ Mode Special Functions Table)
CHECK4
? (AMS)5
ADJ Mode Special Functions Table
(The buttons shown with ( ) function by using the sup-Â (AMS)6
plied remote commander only)PUSH ENTER7
¤ (OPEN/CLOSE) 9
ButtonButton Number or Display
INPUT10
CONTINUEServo average display
Displays VC, FE, RF, TE and traverse in hexadecimalMEMO SEARCH 11
numbersI/u18
SHUFFLEFocus bias displayTIME/TEXT19
Each time this is pressed, the focus bias is switched
GROUP FILE20
between 1 and 2
1GROUP 821
Bias actually set Optimum bias Minimum jitterGROUP 722
2
GROUP 623
U:Upper aliasing bias L:Lower aliasing bias
GROUP 524
PROGRAMAuto gain display
REPEAT27
Displays focus, tracking, sledding in hexadecimal
numbersPROGRAM28
GROUP 1 (1) Increases the focus bias in 8 steps.SHUFFLE29
GROUP 2 (2) Sets the focus bias in the middle of aliasing.CONTINUE30
GROUP 3 (3) Turns off the tracking and sledding servo GROUP 431
GROUP 4 (4) Returns the auto gain to the initial value (30)GROUP 332
GROUP 5 (5) Turns off the focus servoGROUP 233
GROUP 6 (6) Decreases the focus bias in 8 steps.GROUP 134
GROUP 7 (7) Re-adjusts the focus biasáAll lit (LED lit)
GROUP 8 (8) Turns on the tracking and sledding servoPPartial lighting 1 (LED lit)
(9)Switches the focus servo gain between normal and dop wnPartial lighting 2
FG. norm: normal, FG. down: down
DISC/Partial lighting 3
(10/0)Sets the focus bias to 0 (no bias)CHARACTERY When the jog dial is rotated to the right, the
Next, displays the jitter measured at the focus bias set GROUP LEDs light up in the order of 1 ? 2..8
? 2nd ? 1.CHECKS-curve observation mode
Y When the jog dial is rotated to the left, the
CLEARAutomatic eccentric measurement
GROUP LEDs light up in the order of 8? 7..1
The results of measurement is displayed in mm directly.
? 2nd ? 8.
� 10 � |
ACEC
