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Carriage reverse
Moves the pickup position toward the inner diameter of
(inwards)
the disc.
.When this key is pressed with the tracking
servo in a closed loop, the tracking servo automatically
goes into an open loop. Since the motor does not auto-
matically stop at the mechanical end point in test mode,
be careful with this operation.
Carriage forward
Moves the pickup position toward the outer diameter of
(outwards)
the disc.
When this key is pressed with the tracking
servo in a closed loop, the tracking servo automatically
goes into an open loop. Since the motor does not auto-
matically stop at the mechanical end point in test mode,
be careful with this operation.
Initializes and the disc rotation stops.
The pickup and disc remain where they are when this key
is pressed.
Disc tray open/close
Open/close the disc tray. This key is a toggle key and
* | open/close tray alternately.
Pressing this key when the disc is turning stops the disc,
then opens the tray.
This key operation does not affect the position of the
pickup.
[How to play back a disc in test mode]
In test mode, since the servos operate independently, playing back a disc requires that you operate the keys in the
correct order to close the servos.
Here is the key operation sequence for playing back a disc in test mode.
PGM(PROGRAM)
Lights up the laser diode and closes the focus servo.
4
PLAY
[>
Starts the spindle motor and closes the spindle servo.
g
PAUSE
|]
Closes the tracking servo.
Wait at least 2-3 seconds between each of these operations.
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