RCD-991
If you do not press the REVIEW button while the track number is
flashing, the review process is terminated and the unit resumes
whatever mode it was in before you started to review, except that
the last reviewed track number will remain active and shown in
the display.
Note that you may remove a selection from the play list during the
review procedure using the CLEAR button, as described below.
CLEAR Button (remote only)
26
This button allows you to remove a track selection from the
memorized program play list during the review procedure de-
scribed above. Follow the review procedure until the desired
track number is flashing. Then, instead of pressing the REVIEW
button to continue, remove the displayed track by pressing the
CLEAR button while the number is still flashing. You may then con-
tinue the review procedure.
RANDOM Button (remote only)
21
This instructs the CD player to play tracks from the entire disc in
random order. Once all of the selections have been played once,
the disc will stop playing, unless the REPEAT Button (see below)
has been engaged, in which case the random play will continue
until the STOP button is pressed. When the RANDOM button is en-
gaged, the word RANDOM appears in the DISPLAY.
REPEAT Button (remote only)
19
This button allows you to repeat the current track or the entire
disc continuously until the feature is cancelled by disengaging the
REPEAT button or pressing STOP. The REPEAT button steps se-
quentially through the available options. Press the button once
and the RCD-991 will repeat just the current track, displaying the
indicators REPEAT 1 in the DISPLAY. Press the button a second
time and the RCD-991 will repeat the entire disc, displaying RE-
PEAT ALL in the DISPLAY. Press the button a third time to cancel
the REPEAT function.
As noted above, REPEAT can be used in conjunction with the
RANDOM play feature.
Note: The REPEAT function is automatically cancelled when the
disc drawer is opened.
SCAN Button (Remote Only)
20
This feature automatically plays the first ten seconds of each
track on the disc. To activate the feature, press the SCAN button.
The word INTRO appears in the DISPLAY. To stop scanning and re-
sume normal operation at the current track, press the SCAN but-
ton again or press the PLAY button.
TIME Button (Remote Only)
24
Normally, the RCD-991 displays the elapsed time of the currently
playing track. The TIME button allows you to step through two al-
ternative time displays. Pressing the button once displays the time
remaining in the current track, which counts down as the track
continues playing. Pressing the button a second time displays the
5
time remaining on the entire disc (or memorized program).
Pressing the button a third time reverts to the standard
elapsed time display. When the TIME feature is activated, the
word REMAIN appears in the DISPLAY.
DITHER Button (front panel only)
6
DITHER Display
3
Dither is a very small amount of digital noise added to a sig-
nal to improve a CD player’s overall sound quality. Proper
types and amounts of dither can improve a digital-to-analog
converter’s linearity, particularly during very soft (low-level)
musical passages.
Dither’s precise effects vary depending on: the exact dither
type and level chosen, D/A converter type, other system
characteristics, and the type of music being played.
The RCD-991 allows you to choose different types and levels
of dither. The effects may vary but careful listening will re-
veal what selection is best for your system and musical taste.
Select different dither types by sequentially pushing the
DITHER button. The DITHER DISPLAY will change to indicate
the kind of dither then being generated. Remember that
dither-induced sonic differences are subtle and that there is
no wrong setting for your RCD-991. Experiment to find the
most pleasing dither selection.
The DITHER DISPLAY, located to left of the main DISPLAY,
shows a single digit indicating the types of dither provided by
the RCD-991 as follows:
A blank dither setting indicates that dither is off.
Dither settings from 0 through 6 are seven progressively
higher levels of ultrasonic noise-shaped dither. The 0 setting
provides minimum amplitude dither which corrects quantiza-
tion errors only. The 1-6 settings add increasing levels of ul-
trasonic (30-80 kHz) weighted dither designed to smooth out
non-linearity errors in multi-bit D/A converters. The 1 setting
indicates the least amount of noise shaped dither; the 6 set-
ting indicates the highest level.
A dither setting of 7 is minimum amplitude triangular PDF
dither. This low level broadband dither is not weighted to-
wards the ultrasonic range and is intended to correct quanti-
zation errors only. It has a similar effect as the 0 setting, but
with a different type of noise.
A blank dither setting indicates that dither is off.
