Sony CDJ-500 Service Manual page 9

9. The following screen appears. These inspection items can be
excuted one by one. The following describes the example of ex-
ecuting all the tests. Enter "A" to execute all the inspection items
and press the ENTER key.
10. The following screen appears and the front door opens auto-
matically. Insert the general CD-ROM into the 14th slot, and
close the door.
11. The following screen appears and the front door opens auto-
matically. Insert the SONY test disc (TGRS-21: Green disc) in
the 1st slot, and close the door.
Take note that if the door is closed without inserting any disc, the
following screen appears and tests end.
Serial number entered
Enter "A".
9