Pioneer PD-S802 Service Manual - Page 26

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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.

PLAY

Starts the spindle motor and closes the spindle servo.

PAUSE

Closes the tracking servo.

Wait at least 2-3 seconds between each of these operations.