MDS-JA30ES - Sony Audio Service Manual (repair manual). Page 11

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4-4. Selecting the Test Mode
Eight test modes are selected by turning the AMS knob.
SECTION  4
TEST MODE
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.
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 EEP 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 “C =
 AD =  –  –”.
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 “C = 
AD =  –  –”.
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
Function
AMS knob
YES button
NO button
Contents
Changes parameters and modes
Proceeds onto the next step. Finalizes input.
Returns to previous step. Stops operations.
Contents
Temperature compensation offset adjustment
Laser power adjustment
Traverse adjustment
Focus bias adjustment
Focus bias check
Continuous playback mode
Continuous recording mode
Non-volatile memory mode *
Display
TEMP ADJUS
LDPWR ADJUS
EFBAL ADJUS
FBIAS ADJUS
FBIAS CHECK
CPLAY MODE
CREC MODE
EEP MODE
Test Mode initial display
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Display

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