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Available languages
Available languages
9-284M,
PD-2970M
[Release from test mode]
Here is the procedure for releasing test mode :
1. Press the STOP key and stop all operations.
2. Turn off the power switch on the fromt panel.
al of the keys in test mode]
code |
Function in test mode
Explanation
PGM
Focus servo close
The laser diode is lit up and the focus actuator is lifted
(PROGRAM)
up, then lowered slowly and the focus servo is closed at
the point where the objective lens is focused on the disc.
With the player in this state, if you lightly rotate the
stopped disc by hand, you can hear the sound the focus
servo.
If you can hear this sound, the focus servo is operating
correctly. If you press this key with no disc mounted,
the laser diode lights up, the focus actuator is pulled up,
then
the actuator
is lowered
and
raised
twice
and
returned to its original position.
PLAY
Spindle servo On
Starts the spindle motor in the clockwise direction and
when the disc rotation
reaches the prescribed
speed
(about 500 rpm at the inner periphery), sets the spindle
servo in a closed loop.
Be careful.
Pressing this key when there is no disc
,
mounted makes the spindle motor run at the maximum
speed.
If the focus servo does not go correctly into a closed
loop or the laser light shines on the mirror section at
the outermost edge of the disc, the same symptom
is
occurred.
PAUSE
Tracking servo
Pressing this key when the focus servo and spindle servo
close/open
are operating correctly in closed loops puts the tracking
servo
into a closed
loop, displays
the track
number
being played back and the elapsed time on the front
panel, and outputs the playback signal.
If the elapsed time is not displayed
or not
counted
correctly or the audio is not played back correctly, it
may be that the laser is shining on the section with no
sound
recorded
at the outer
edge of the disc, that
something is out of adjustment, or that there is some
other problem.
This key is a toggle key and open/close the tracking
servo alternately. This key has no effect if no disc is
mounted.
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