HCD-D690, HCD-XB6, HCD-XB600 - Sony Audio Service Manual (repair manual). Page 3

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[Aging Mode]
This mode can be used for operation check of CD section and tape
deck section.
If an error occurred:
The aging operation stops.
If no error occurs:
The aging operation continues repeatedly.
1. Aging Mode in CD Section
1-1.  Operating Method of Aging Mode
1. Set discs in DISC 1 and DISC 3 trays.
2. Select the function “CD”.
3. Press three buttons SPECTRUM ANALYZER , ENTER
and KARAOKE 
PON/MPX simultaneously.
4. The aging mode is activated, if a roulette mark on the fluo-
rescent indicator tube is blinking.
5. In the aging mode, the aging is executed in a sequence
given in “1-2. Operation during Aging Mode”.
The aging continues unless an alarm occurred.
6. To exit from the aging mode, press POWER button to
turn the set OFF.
If a button other than buttons In CD section is pressed during
aging, the aging in the CD section is finished.
To execute aging to the tape deck section successively, press
·
button in the deck A.
“AGING” is displayed on the fluorescent indicator tube.  (For
the aging in tape deck, see “2. Aging Mode in Tape Deck Sec-
tion”.
1-2.  Operation during aging Mode
In the aging mode, the program is executed in the following se-
quence.
1. The disc tray turns to select a disc. (For a disc selection
sequence, see Section 1-3.)
2. TOC of disc is read.
3. The pick-up accesses to the last track.
4. Steps 1 through 3 are repeated.
1-3.  Disc Selection Sequence
During the aging mode, discs are selected in the following se-
quence:
Disc 1 
 Disc 3
 
Disc 3 
 Disc 1
2. Aging Mode in Tape Deck Section
2-1.  Operating Method of Aging Mode
1. Load a commercially available 10-minute tape into the
decks A and B respectively.
(If a 10-minute tape is not available, another tape may be
used but a cycle time will be longer.)
2. Select the function “TAPE”.
3. Rewind tapes in advance by pressing
0 button respec-
tively on decks A and B.
4. Press three buttons SPECTRUM ANALYZER , ENTER
and KARAOKE 
PON/MPX simultaneously.
5. Press
· button on deck A.  (This button triggers the ag-
ing mode.)
6. The aging mode is activated if “AGING A” is displayed
on the fluorescent indicator tube.
7. In the aging mode, the aging is executed in a sequence
given in “2-2.  Operation during Aging Mode”.
The aging continues unless an alarm occurred.
8. To exit from the aging mode, press POWER button to turn
the set OFF.
2-2.  Operation during Aging Mode
In the aging mode, the program is executed in the following se-
quence.
1. A tape on FWD side is played for one minute.
2. PAUSE STOP is made.
3. Recording is made for 3 minutes. (For the deck not having
the record function, the play is executed.)
4. FF is executed up to the end of tape.
5. A tape is reversed, and the tape on REV side is played for
one minute.
6. PAUSE STOP is made.
7. Recording is made for 3 minutes.  (For the deck not hav-
ing the record function, the play is executed.)
8. FF is executed up to the end of tape.
9. Steps 1 through 8 are executed for the other deck.
10. Steps 1 through 9 are repeated unless an alarm occurred.
2-3.  Deck Selection Sequence
During the aging mode, decks are selected in the following se-
quence:
Deck A (FWD) 
 Deck A (REV)
Deck B (REV) 
 Deck B (FWD)
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