- Computers & electronics
- Audio & home theatre
- DJ controllers
- American Audio
- DCD PRO 250
- User's manual
BEFORE SWITCHING OFF THE POWER. American DJ Audio DCD PRO 250, DCD-PRO250
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ADJ DCD-PRO250 is a twin mechanism compact disc player that comes with a wired controller, which allows you to handle two discs at once. It has a variable pitch of +/-10% or more and a search accuracy of 1/75 sec. (1 subcode frame). The supported disc types are standard compact discs (both 5 in / 12 cm and 3 in / 8 cm discs). The audio section is equipped with a 16 bit linear per channel quantization, a 44.1 kHz sampling rate at normal pitch, 8 times over sampling rate, and a 16 bit D/A conversion, providing a frequency response of 10 to 20000 Hz, a total harmonic distortion of 0.
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BASIC OPERATION (CONT.)
1) The player has completed the cue or pause operation and is waiting for the play start command.
2) When the PLAY/PAUSE button is pressed, playback starts and the cue point is stored in the memory.
3) Playing
4) The pause mode is set when the PLAY/PAUSE button is pressed again.
5) Pausing
6) When the PLAY/PAUSE button is pressed again, playback resumes and the new cue point is stored
in the memory.
7) Playing
8) Press the CUE button.
9) The pickup returns to the cue point. (Back Cue)
NOTE: During cue mode, if the CUE button is pressed and held, playback will start from the cue point.
When the button is released, the player will return to the cue mode automatically. This feature allows you to
check the cue point.
9. Frame Search
• Frame search is a function for monitoring the sound at a certain section of the disc and manually
changing the position. Searching is used to set play start points with precision.
• Press the FORWARD SEARCH or BACKWARD SEARCH while in pause or cue mode to begin
searching. The sound for one revolution of the disc is output repeatedly. The point at which the sound
starts is indicated on the LCD.
• If the time display and the CUE point are the same, the CUE indicator lights.
10. FRAME SEARCH
• This feature allows you to scroll through a track to set a starting cue, sample, or loop point. To use
the scroll function you must first be in Pause Mode. While in Pause Mode use the INNER JOG
WHEEL (FIG. 12) to find your desired staring point by turning the wheel in either a clockwise
or counter-clockwise direction. While using the jog wheel the monitor function allows you to hear
what you are scanning through. Once you have found your desired starting point, pressing the PLAY
BUTTON (FIG. 13) locks your cue point into memory. Pressing the CUE BUTTON (FIGURE 14) will
return you to your set cue point until the disk is removed or a new cue point is set.
5
DISC 1
Fig. 12
PLAY
5
DISC 1
TIME
Fig. 13
5
PLAY
REMOTE COTROL UNIT
Fig. 14
TIME
REMOTE COTROL UNIT
DISC 2
PLAY
REMOTE COTROL UNIT
DISC 2
TIME
PLAY
American DJ
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AUDIO • DCD-PRO250™ INSTRUCTIONS MANUAL • PAGE 13
TIME
BASIC OPERATIONS (CONT.)
11. Scanning (fast forward / Fast reverse)
• This function allows a fast search through a disk or track. Turning the
Outer Shuttle wheel in clockwise direction will fast forward your search.
5
DISC 1
Turning the Outer Shuttle wheel in a counter-clockwise will fast reverse
your search. You can scan in 6 different speeds (3 forward/3 reverse)
depending on the degree you turn the shutter wheel.
12. Seamless Loop Play
• A seamless loop is a sound loop that plays continuously without
sound interruption.
• You create a seamless loop between any two continuous points in a CD.
(1) Press the PLAY BUTTON to start a CD playing.
(2) Press IN/LOOP BUTTON. This sets the loops' starting point. The
DISC 1
5
IN/LOOP LED will begin to glow (Fig. 15).
(3) Press OUT/LOOP BUTTON to set your desired loop ending point.
The IN/LOOP and OUT/LOOP LEDs will flash indicating SEAMLESS
LOOP mode has been activated.
• LOOP INDICATOR
(1) The loop indicator will display in the LCD display indication that a
loop is running.
• Exiting A LOOP
(1) To Exit a SEAMLESS LOOP, Press the OUT/LOOP BUTTON. The
IN/LOOP and OUT/LOOP LEDs will remain on, but will stop
flashing. Music will resume normal play (Fig. 16)
• REPLAY LOOP
5
DISC 1
(1) To replay the loop, press the RELOOP BUTTON. The IN/LOOP and
OUT/LOOP LEDs will again begin to flash indicating SEAMLESS
LOOP MODE has been activated (Fig. 17).
PLAY
PLAY
PLAY
TIME
Fig. 15
TIME
Fig. 16
TIME
13. Editing A Loop:
• Note: You can only edit the ending point of the loop.
Fig. 17
• Before you can edit a seamless loop you obviously, must first be in SEAMLESS LOOP mode.
• If a SEAMLESS LOOP has not yet been created, follow instructions above (SEAMLESS LOOP PLAY) to create a
SEAMLESS LOOP. If a SEAMLESS LOOP has already been created, press the RELOOP BUTTON to reenter the
SEAMLESS LOOP mode (Fig. 17).
1) Press the OUT/LOOP BUTTON to return to normal play from the loops cue point. (Fig. 16). This
disengages the SEAMLESS LOOP mode and allows you to edit the loops ending point.
2) Press OUT/LOOP BUTTON again for a new loop ending point (Fig. 16).
3) FOR A SHORTER LOOP: Press the OUT/LOOP BUTTON at sooner point in the track.
4) FOR LONGER LOOP: Press the OUT/LOOP BUTTON at later point in the track.
14. Program play
• Press the PROGRAM button, the player will enter the program mode and the CD will stop rotating.
• Select the desired track by pressing the SKIP button, then press the PROGRAM button again. The
selected track will be added to the program sequence.
• Repeat step 2 operation. A maximum of 30 tracks can be programmed at one time.
• Press the PLAY button to start the program play from the first selection.
• Press the program button again during program play to stop play.
• Press and hold the program button more than 2 seconds to cancel the program mode and erase all
the current program contents.
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AUDIO • DCD-PRO250™ INSTRUCTION MANUAL • PAGE 14
REMOTE COTROL UNIT
REMOTE COTROL UNIT
REMOTE COTROL UNIT
DISC 2
DISC 2
DISC 2
PLAY
PLAY
PLAY
TIME
TIME
TIME
BASIC OPERATION (CONT.)
15. PITCH BENDING
• This function momentarily increases or decreases the playback speed of a CD respectively when the
+ PITCH BEND or - PITCH BEND button is pressed. The extent to which the speed changes is
proportionate to the amount of time the button is pressed. For example, if the + PITCH BEND BUTTON
is held down continuously, the CD’s speed increases and will continue to increase until reaches a
maximum of 16% gain in speed. When you release the + PITCH BEND BUTTON the speed of the CD
will automatically return to it’s previous speed.
• The pitch can be changed from +/- 8%, +/- 12% or +/- 16% range. See changing PITCH PERCENTAGE.
• The jog wheel will temporarily bend the pitch if a track is in play mode. Rotating the wheel clockwise
will speed up your track and rotating the wheel counter-clockwise will slow the track down. The speed
that you rotate the JOG WHEEL determines the percentage (%) of the PITCH BEND.
16. TRACK PROGRAM PLAY
• This function allows you to program up to 20 tracks and have them replayed in any order.
• To program a track in to memory:
1) Be sure the drive is in PAUSE or CUE MODE.
2) Press the PROG. BUTTON to activate the units program mode. The program indicator LED above the
PROG BUTTON will light and the PROGRAM INDICATOR in the LCD DISPLAY will turn on
indicating that PROGRAM MODE has been activated.
3) Select a Track by using the FORWARD AND REVERSE TRACK BUTTONS, and again press PROG.
BUTTON this will enter the track into memory.
4) Repeat this up to 19 times (i.e. up to 20 tracks can be programmed). If you keep pressing the
PROG. BUTTON the LCD DISPLAY will indicate which tracks have been programmed.
(4) Press the PLAY BUTTON to begin playing programmed tracks.
(5) To cancel the program press and hold down the PROG. BUTTON for more than two (2) seconds.
17. Time Display (see figure 14)
• Pressing the TIME button repeatedly will change the select time display mode:
A = Elapsed playing time.
B = Remaining time in a selection.
C = Total remaining time of the disc.
Fig. 14
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AUDIO • DCD-PRO250™ INSTRUCTIONS MANUAL • PAGE 15
MATCHING THE BEATS PER MINUTE (BPM)
Matching the Beats Per Minute (BPM)
This function allows you to match the beat of two separate music sources.
• With the unit, there are two ways to adjust the playing speed and match the BPMs of the two CDs:
• Use the pitch slider to adjust the BPM statically.
• Use the PITCH BEND buttons to change the BPM temporarily.
1) Pitch Slider - To adjust the BPM by sliding the pitch slider up or down, press the PITCH button to
turn on the PITCH adjustment function before use. The BPM decreases when the pitch slider is moved
upward and increases when the pitch slider is moved downward. The adjustment range is +/- 10%.
2) Pitch Bending - The BPM increases or decreases respectively while the PITCH BEND+ or PITCH
BEND- button is pressed. The BPM increase depends on how long you hold the button. If you hold the
button for about 1/2 second, the BPM will go either to +16% for PITCH BEND+ or -16% for PITCH
BEND-. If you tap the button, the BPM will only change a little so you can change the beat slightly
without audible changes in the music. The CD will return to the tempo indicated by the Pitch slide
when you let go of the PITCH BEND + or -. Figure 15 shows an example of how to use the pitch bend
Fig. 15
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AUDIO • DCD-PRO250™ INSTRUCTIONS MANUAL • PAGE 16
BEFORE SWITCHING OFF THE POWER
When you have finished using the CD player, before switching off the power be sure that the disc holder has been closed with the OPEN/CLOSE button (Figure 15).
CAUTION: Do not forcibly close the disc holder when the power is off.
Fig. 15
Do not switch off the power when the disc holder is open.
Switch off the power after the disc holder has been closed with the OPEN/CLOSE button.
COMPACT DISCS
Precautions on handling compact discs
• Do not allow fingerprints, oil or dust to get on the surface of the disc. If the disc is dirty, wipe it off with a
soft dry cloth.
• Do not use benzene, thinner, water, record spray, electrostatic-proof chemicals, or silicone-treated cloths
to clean discs.
• Always handle discs carefully to prevent damaging the surface; in particular when removing a disc from its
case or returning it.
• Do not bend the disc.
• Do not apply heat.
• Do not enlarge the hole in the center of the disc.
• Do not write on the label (printed side) with a hard-tipped implement such as a pencil or ball point pen.
• Condensation will form if a disc is brought into a warm area from a colder one, such as outdoors in
winter. Do not attempt to dry the disc with a hair dryer, etc.
Precaution on storage
• After playing a disc, always unload it from player.
• Always store the compact disc in the jewel case, protecting from dirt or damage.
• Do not place discs in the following areas:
a) Areas exposed to direct sunlight for a considerable time.
b) Areas subject to accumulation of dust or high humidity.
c) Areas affected by heat from indoor heaters, etc.
American DJ
®
AUDIO • DCD-PRO250™ INSTRUCTIONS MANUAL • PAGE 17
American DJ Supply
®
World Headquarters:
4295 Charter Street
Los Angeles, CA 90058 USA
Tel: 323-582-2650 - Fax: 323-582-2610
Web: www.americandj.com - E-mail: [email protected]
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