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SECTION 4
TEST MODE
4-1. PRECAUTIONS FOR USE OF TEST MODE
1 As loading related operations will be performed regardless of the test mode operations being performed, be sure to check that the disc is
stopped before setting and removing it.
Even if the §EJECT button is pressed while the disc is rotating during continuous playback, continuous recording, etc., the disc will not
stop rotating.
Therefore, it will be ejected while rotating.
Be sure to press the §EJECT button after pressing the EDIT/NO button and the rotation of disc is stopped.
2 The erasing-protection tab is not detected in the test mode. Therefore, operating in the recording laser emission mode and pressing the
rREC button, the recorded contents will be erased regardless of the position of the tab. When using a disc that is not to be erased in the
test mode, be careful not to enter the continuous recording mode and traverse adjustment mode.
4-1-1. Recording laser emission mode and operating buttons
1. Continuous recording mode (CREC MODE)
2. Traverse adjustment mode (EFBAL ADJUST)
3. Laser power adjustment mode (LDPWR ADJUST)
4. Laser power check mode (LDPWR CHECK)
5. When pressing the rREC button.
4-2. SETTING THE TEST MODE
While pressing the AMS knob, insert the power plug into the power supply outlet, and release the AMS knob.
4-3. EXITING THE TEST MODE
When the 1/u button is pressed, it becomes in the STANDBY mode. Or unplug the power plug from an outlet.
4-4. BASIC OPERATIONS OF THE TEST MODE
All operations are performed using the AMS knob, YES button, and EDIT/NO button.
The functions of these buttons are as follows.
Function name
AMS knob
YES button
EDIT/NO button
Function
Changes parameters and modes
Proceeds onto the next step. Finalizes input.
Returns to previous step. Stops operations.
4-5. SELECTING THE TEST MODE
Thirteen test modes are selected by turning the AMS knob.
Display
TEMP ADJUST
LDPWR ADJUST
LDPWR CHECK
EFBAL ADJUST
FBIAS ADJUST
FBIAS CHECK
CPLAY MODE
CREC MODE
DETRK CHECK
S curve CHECK
EEP MODE
MANUAL CMD
SVDATA READ
Contents
Temperature compensation offset adjustment
Laser power adjustment
Laser power check
Traverse adjustment
Focus bias adjustment
Focus bias check
Continuous playback mode
Continuous recording mode
Detrack check
S curve check ∗
Non-volatile memory mode ∗
Manual command transfer mode ∗
Data reading out mode ∗
For detailed description of each adjustment mode, refer to “5. Electrical Adjustments”.
If a different adjustment mode has been selected by mistake, press the EDIT/NO button to exit from this mode.
* The EEP MODE, S curve CHECK, MANUAL CMD and SVDATA READ are not used in servicing. If set accidentally, press the EDIT/NO
button immediately to exit this mode.