Sony HCD-MD1EX - System Service Manual page 24

5-8. AGING MODE
This unit is provided with an aging mode.
In this mode, MD and CD operations are performed alternately according to the following sequence.
Aging will be carried out continuously unless an error occurs.
If an error occurs, the status and number of cycles are displayed alternately, and operations stop. (Refer to Table 1.)
Aging Mode Sequence
Start
Turn ON Power using function MD
Cannot read
MD TOC READ
Can read
MD all erase
Blank disc
YES
CD function is set and CD TOC is read
CD TOC OK?
YES
CD synchro standby
OK?
YES
CD last track search pause state
OK?
YES
CD synchro starts
OK?
YES
Synchro ends?
MD function is set
CD tray opens
OK?
YES
CD tray closes
OK?
YES
MD last track (for 3 sec.) play
OK?
YES
Power goes off and MD TOC is written
Aging cycle number is displayed
Power turns ON and MD TOC is read
OK?
YES
Message 6
Above 20
MD last track
Less than 20
NO
Message 1
NO
Message 7
NO
Message 2 or 8
NO
Message 9
NO
Message 3 or 0
Playing CD?
NG
Message !º
NO
Message !¡
NO
Message !™
NO
Message 4
NO
Message 5 or Message 6
OK
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