HCD-RXD2, MHC-RXD2 (serv.man2) - Sony Audio Service Manual (repair manual). Page 10

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STOP + POWER OFF All preset data is re-set to the initial
(default) value.

STOP + DISC 1 Mode name is displayed.

STOP + DISC 2 Destination is displayed.

STOP + DISC 3 Version number of the
microprocessor is displayed.

STOP + DISC SKIP/EX-CHANGE Set discs to DISC 1 and DISC
3.  The following operations are repeated when aging
starts:
1. DISC 1: TOC Read
2. Plays back the last music of the DISC 1
3. DISC 3 : TOC Read
4. Plays back the last music of the DISC 3.
5. STOP
6. Tray is open and closed.

STOP + PLAY A Insert a commercially available cassette tape (10
min.) to the  decks A and B.  When aging starts, each tape is rewound
and the following
operations are repeated:
1. TAPE A: FWD PLAY for one minute
2. TAPE A: FWD STOP for one second
3. TAPE A: FWD PLAY for three minutes
4. TAPE A: FWD FF to tape end
5. TAPE B: FWD PLAY for one minute
6. TAPE B: FWD REC PAUSE for one second
7. TAPE B: FWD REC for three minutes
8. TAPE B: FWD FF to tape end
9. TAPE B: REV PLAY for one minute
10. TAPE B: REV REC PAUSE for one second
11. TAPE B: REV REC for three minutes
12. TAPE B: REV FF to tape end.

STOP + OPEN/CLOSE The message “CD S - -” is displayed on the
screen.  The sled is moved to the outer circumference
while the FF button is pressed.  Also, the SLED is moved to the
inner
circumference while the REW button is pressed.  After pressing the
PLAY
button, FOCUS is turned ON, CLV-S is set, TRACKING and SLED
servos
are turned OFF and ADDRESS 3 = 3F, 37 is set.

STOP + DBFB All displays are turned ON.

STOP + DISPLAY/DEMO The balance adjustment value is
displayed.

STOP + FILE SELECT Function of the pressed key is displayed.