Test Mode - Sony MDS-JA50ES Service Manual

4-1. Setting the Test Mode
While pressing the AMS knob, insert the power plug into the power supply inlet, and release the AMS knob.
4-2. Exiting the Test Mode
Press the REPEAT button. Unplug the power plug from an outlet.
4-3. Basic Operations of the Test Mode
All operations are performed using the AMS knob, YES button, and NO button.
The functions of these buttons are as follows.
Function
Changes parameters and modes
AMS knob
Proceeds onto the next step. Finalizes input.
YES button
Returns to previous step. Stops operations.
NO button
4-4. Selecting the Test Mode
Eight test modes are selected by turning the AMS knob.
Display
TEMP ADJUS Temperature compensation offset adjustment
LDPWR ADJUS Laser power adjustment
EFBAL ADJUS Traverse adjustment
FBIAS ADJUS Focus bias adjustment
FBIAS CHECK Focus bias check
CPLAY MODE Continuous playback mode
CREC MODE Continuous recording mode
EP MODE Non-volatile memory 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 NO button to exit from it.
* The EP MODE is not used in servicing. If set accidentally, press the NO button immediately to exit it.
4-4-1. Operating the Continuous Playback Mode
1. Entering the continuous playback mode
1 Set the disc in the unit (either MO or CD).(MO: Recordable disc, CD: Disc for playback only).
2 Rotate the AMS knob and display "CPLAY MODE".
3 Press the YES button to change the display to "CPLAY IN".
4 When access completes, the display changes to "C1 =
Note : The " " displayed are arbitrary numbers.
2. Changing the parts to be played back
1 Press the YES button during continuous playback to change the display to "CPLAY MID", "CPLAY OUT".
When pressed another time, the parts to be played back can be changed.
2 When access completes, the display changes to "C1 =
Note : The " " displayed are arbitrary numbers.
3. Ending the continuous playback mode
1 Press the NO button. The display will change to "CPLAY MODE".
2 Press the §OPEN/CLOSE button and remove the disc.
Note 1 : The playback start addresses for IN, MID, and OUT are as follows.
IN 40h cluster
MID 300h cluster
OUT 700h cluster
SECTION 4

TEST MODE

Contents
Contents
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