Marantz CD-73 - 6. SIGNAL BLOCK DIAGRAM

PLAYING BACK DISCS
Set the POWER switch to ON ( a )}.
Set the OPEN/CLOSE button to the OUT ( _ML ) position to
open the drawer,
3. Place a disc on the platter with the label side up. The disc may
be slightly tilted.
4. Set the OPEN/CLOSE button to the IN ( = ) position to
close the drawer. As the drawer closes, the disc clamper moves
the disc to its correct position.
5, Check that the STANDBY indicator is lit.
NOTES:
1. The drawer automatically stops closing if it encounters any
obstacles (such as fingers).
2. When the OPEN/CLOSE button is in the out ( Mt ) posi-
tion, the drawer can be pushed into the play position
manually. In this case, however, the STANDBY indicator
does not light and disc playback cannot be started. To
start playback, set the OPEN/CLOSE button to the IN
( = ) position.
6. Press the NEXT PROGRAM/PLAY button; this causes all!
selections on the disc to be played from the beginning. For
programming, see the ‘'Programming” section of this booklet.
7. The LASER indicator lights and the platter starts rotating.
8, The program indicators light to indicate the numbers of selec-
tions stored in memory.
9. To skip to the next selection, press the NEXT PROGRAM/
PLAY button.
10. Set the OPEN/CLOSE switch to the OUT position to open the
drawer and remove the disc after playback has been completed.
N=
PROGEAMMING
The CD-73 has two built-in, 8 bit microprocessors which control the
focus servo, radial servo and platter speed servo and programming
features. These features provide a range of functions which you will
find more than adequate.
General description of the programmable compact disc
player
This excellent programmable system provides the following func-
tions.
1, A standard playaback function for playing all selections on the
disc, from beginning to the end.
2. A random access function for playing selected selections in the
order specified in the playback program.
3. A playback delete function for skipping specific selections. A
repeat function for skipping specific selections. A repeat func-
tion is also provided which can be used in conjunction with any
of the above.
Standard playback
See Section “PLAYING BACK DISCS”.
Random access programming function
1. Load adisc as described in Section ‘‘PLAYING BACK DISCS”.
Check that the STANDBY indicator lights.
2. Press the SELECT button repeatedly until the loading indicator
corresponding to the desired selection flickers.
3. Press the PRESET button; this stores the selection number in
memory.
When the RESET button is pressed, all PROGRAM indicators
other than that corresponding to the selected number go out.
Repeat steps 2. and 3. to store other selection numbers in
memory.
4. After programming has been completed, press the PLAY button.
Selections are played back in the order programmed.
5. A maximum number of 15 selection numbers can be stored in
memory. To clear a number which has been stored in memory,
press the SELECT button repeatedly until the LOADING
indicator corresponding to that number flickers, then press the
CANCEL button. The corresponding PROGRAM indicator then
goes out and that selection number is cleared from memory.
6. If an attempt is made to store a selection number in memory
when 15 selection numbers have already been stored, the OVER
FL indicator lights momentarily when the PRESET button is
pressed to indicate that the selection number cannot be stored
in memory.
7. The random access function can be programmed during play-
back by means of the SELECT, PRESET, and CANCEL buttons
as described above. This allows the contents of memory to be
either partially or completely replaced during playback.
Playback Delete function
1. Load a disc as described in Section “PLAYING BACK DISCS".
Check that the STANDBY indicator lights.
2.
Press
the
SELECT
button
repeatedly
until
the
LOADING
indicator
corresponding
to
the
selection
number
to
be
skipped
flickers.
3. Press the CANCEL button when the LOADING indicator
flickers; the corresponding PROGRAM indicator goes out and
that selection number is cleared from memory.
4. Repeat steps 2. and 3. to clear other selection numbers.
5. This Playback Delete function can be used during playback.
Clearing the entire memory
The entire memory is cleared when the STOP/ALL CANCEL
button is pressed or the OPEN/CLOSE button is set to the OUT
position to open the drawer. Therefore, when a disc is replaced, the
program stored in memory is automatically canceled.
NOTE:
The program is also cleared if the drawer is pulled out during play-
back
by
hand.
In
this
case,
set
the
OPEN/CLOSE
switch
to
the
OUT position, then set it to the IN position again. Reprogram
desired selections after confirming that the STANDBY indicator
is lit.
Repeat function
A\l programmed selections can be repeated any number of times by
pressing the REPEAT button. The REPEAT indicator lights when
this function is operating. Press the REPEAT button again to reset
this function.
LOADING indicators
The LOADING indicators light to indicate the number of the
selection which is being played. Applicable LOADING indicators
flicker while the selection to be played next is being selected by the
program, when the SELECT button is pressed or when the fast
forward (FF) or reverse (REV) button is pressed. LOADING
indicators which flicker after the SELECT button has been pressed
will go out after a few seconds.
iN CASE OF DIFFICULTY
If you experience any difficulty, check the following before con-
tacting your dealer or the nearest Marantz service station.
@ Disc does not rotate.
1. Make sure that the power cord js properly connected.
2. Confirm that the POWER switch is on.
3. Confirm that the drawer is in the correct position and that
the STANDBY indicator is lit.
4. Confirm that the OPEN/CLOSE switch is in the IN ( ==)
position.
5. Confirm that the disc has been loaded with the label side up.