Link electronic Musical Instrument PRO SM 1 User Manual

®
Professional Disc Jockey Products  
PRO SM-1  
PROFESSIONAL SCRATCH MIXER  
OWNERS MANUAL  
INDUSTRIES  
©1999  
11 Helmsman Avenue, North Kingstown, RI 02852  
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PRO S M-1  
PRO SM-1 Professional Scratch Mixer  
INDEX  
Safety Information  
Page 2  
Product Registration  
Precautions  
Page 4  
Page 5  
Page 6  
Page 7  
Page 9  
Page 10  
Page 10  
Page 11  
Page 12  
Introduction  
Front Panel Diagram  
Operating Instructions  
Rear Panel Diagram  
Connection Diagram  
Specifications  
Block Diagram  
Warranty and Service  
- The Leader in DJ Technology  
© 1 9 9 9  
Industries  
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PRO S M-1  
IMPORTANT INFORMATION...  
Please read this entire manual before connecting the PRO SM-1 to your system.  
For optimum performance:  
SYSTEM PRECAUTIONS  
• Always make sure that AC power is OFF while  
making any connections.  
• Use appropriate cables throughout your system:  
Quality shielded audio cables and terminated shielded  
video cables, low-capacitance preferred. Speaker  
cables must be at least 14-gauge; 12 or 10-gauge is  
preferable.  
• Do not use excessively long cables (i.e. over  
50ft/14m). Be sure plugs and jacks are tightly mated.  
Loose connections can cause hum, noise or  
intermittents that could easily damage your speakers.  
• Reliability will be enhanced through the use of  
banana connectors on the speaker wires. Observe  
correct speaker wire polarity. If in doubt, consult your  
dealer or a qualified technician.  
• Never use spray cleaners or oils on  
the slide controls. Residues will  
cause excessive dirt build-up and this  
will void your warranty. In normal  
use slide controls can last for many  
years. If they malfunction (usually  
because of a dirty or dusty  
• Connect only one cable at a time, paying close  
attention to the color-coded, labelled Input and Output  
jacks.  
• ALWAYS REMEMBER  
“TURN AMPS ON LAST AND OFF FIRST”.  
Begin with master faders or volume controls on  
minimum and the amplifier gain/input control(s) down.  
Wait 8 to 10 seconds before turning up the volume.  
This prevents transients which may cause severe  
speaker damage.  
environment), consult a professional  
technician.  
• Never attempt to make any adjustments or repairs  
other than those described in this manual. Take the  
PRO SM-1 to your dealer or to an authorized  
• Use restraint when operating controls by moving  
them slowly. Rapid adjustments may damage  
speakers due to amplifier clipping.  
Service Center.  
Avoid amplifier “clipping” at all costs: this  
occurs when the red LEDs (usually on the front panel  
of most professional power amplifiers) start flashing.  
“Clipping” is when the power amplifier is distorting  
and working beyond it’s limits. Amplifier distortion is  
the major cause of speaker failure.  
A NOTE ON CABLES:  
Quality cable makes a big difference in audio  
fidelity and punch. See your  
dealer or an electronics or audio specialist  
store if you are unsure which cables to use.  
• To prevent fire or shock hazard, do not expose the  
unit to rain or moisture. Never place any beverage  
or anything wet on top of the mixer!  
- The Leader in DJ Technology  
© 1 9 9 9  
Industries  
4
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PRO S M-1  
CONGRATULATIONS!  
You are now the owner of a  
PRO SM -1 Professional Scratch M ixer, the  
ultimate tool for todays skilled turntablist. The PRO SM -1 has been designed with the finest  
components to give you better reliability than ever before. The PRO SM -1 features ultra-  
smooth active optical faders that are designed to deliver reliable, long-life. They utilize super  
quiet photo couplers to deliver the cleanest possible sound. The  
PRO SM -1 has  
been designed by D Js for D Js. It is the professionals’ dream machine with absolute total mix  
and effect control.  
FEATURES...  
• H ighly Reliable, Long-Life, Active Optical Crossfader with super quiet photo coupler  
Crossfader Reverse (H amster) Toggle  
Crossfader Slope Control  
• 8 Position Rotatable Input Selector Toggles  
• Active Channel Faders with 3-Position Contour Adjustment Switch  
• 4 Phono Inputs with low-noise RIAA preamps  
• 2 Optional Line Inputs  
• Bass, M iddle & Treble controls on each channel with -30dB “Cut” & + 12dB “Boost”  
• Individual PFL Gain Controls on each Channel  
• H igh-Resolution Linear Fader Style Balance Control on each channel  
• 4 Bar 12-Segment Display graph on both Stereo M aster output  
and PFL (Pre-Fader Listen) for each input channel  
Combination XLR-1/4” N eutrik™ M icrophone input with Treble and Bass EQ  
• Slider Cueing with PFL (pre-fader listen) and Program Blend  
Gold Plated H eadphone Jacks for Both 1/4” and 1/8” H eadphones Plugs  
• Balanced 1/4” TRS and Unbalanced RCA connection M aster Outputs  
• M onitor/Zone Level Control with M ono/Stereo Switch  
• Smooth Screwless Faceplate  
• H ard Rubberized Knobs for Quick N on-Slip Gripping.  
• Extra W ide Rubber Feet for M aximum Stability  
• Same H eight as  
PRO TT-1 turntable  
• All Gold Plated Connectors  
User Replaceable Faders  
• H igh Quality, Double Sided, Glass Epoxy Circuit Boards with Extra Thick Copper  
Ground Planes for Exceptionally Quiet Operation  
Carbon Composite Resistors for more N atural W arm Sounds (perfect for vinyl)  
Dual Gold Plated Grounding Screws  
Thank you for buying Numark DJ products!  
- The Leader in DJ Technology  
© 1 9 9 9  
Industries  
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PRO S M-1  
FRONT PANEL DIAGRAM...  
3
4
1 8  
1 9  
1 6  
1 5  
1 4  
1 2  
1 3  
9
5
1 0  
1
2 1  
2 0  
7
6
2
8
1 1  
1 7  
- The Leader in DJ Technology  
© 1 9 9 9  
Industries  
6
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PRO S M-1  
FEATURES AND OPERATING INSTRUCTIONS...  
Please read this entire manual before begining operation of the  
PRO SM-1 as there are new features you  
will need to read about to use properly. This mixer can be 10” rack-mounted or used as a free-standing unit.  
INSTALLATION AND OPERATION  
Study the Connections Diagram on page 13. First, connect all stereo input sources. Next connect your microphone(s)  
and monitor headphones. Make sure all faders are at "zero" and the unit is off. Connect the stereo outputs to the power  
amplifier(s) and/or audio sources. Using the AC adpater plug the power source for the PRO SM-1 into the unit. Now you  
are ready to switch it on.  
CHANNEL CONTROL FEATURES  
1. Rotatable Input Toggle Switches select which  
source will be active to that channel based on what you  
have connected to the rear panel input section.  
5. Balance Controls are for adjusting the stereo signals  
intensity from right to left. Moving the slider to the left will  
allow only the left side to be heard, moving the slider to the  
right will allow only the right side to be heard, leaving it in  
the middle creates an even stereo balance. The high-  
resolution linear faders are great for creating quick effects.  
To rotate or replace the toggle  
a. Turn off all power!  
b. Remove 3 lower panel fader knobs  
c. Unscrew 4 lower front panel screws found on  
mixers sides and remove panel  
d. Remove toggle switch retaining screws  
e. To rotate, lift toggle and place in it’s new position.  
If you are replacing the toggle switch, unplug the  
old unit and plug in the new one.  
6. The Active Channel Faders are highly reliable, long-  
life, Alps™ optical faders. These control individual source  
levels in the mix after processing by the input gain and  
channel EQ.  
Note: The input faders are user replaceable in the  
unlikely case of failure. Simply unscrew the four lower  
faceplate screws and remove the faceplate. Then  
unscrew the 2 screws which hold the fader in place, lift  
it out and disconnect it’s cable. Re-attach the new  
fader and screw the face plate back onto the unit.  
You’re back in business!  
f. Screw toggle back into place.  
2. PFL Meters are 12-segment individual displays for the  
input level of the corresponding channe. This allows the  
DJ to accurately match channel levels with the Pre-Fader  
gain controls before mixing them together. The idea is to  
properly match PFL inputs, not the input with the stereo  
output meter!  
7. The Channel Contour Control slide switch allows  
the DJ to customize the way the Channel fader affects the  
channel signal as it is used.  
3. PFL Gain Controls are for accurately matching input  
levels of the channels.  
30dB creates an even increase in volume as the  
fader is moved upward  
20dB creates a more gradual volume increase  
4. Treble, Middle, and Bass Controls are for setting  
appropriate equalized levels for the music you are playing.  
When turned all the way left they “CUT” the signal of the  
associated frequency range by -30dB for special effects  
mixing.  
6dB  
creates a very slow change at first and then very  
rapid at the top of the fader  
- The Leader in DJ Technology  
© 1 9 9 9  
Industries  
7
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PRO S M-1  
CROSSFADER SECTION  
15. The Program Mix (PGM) Control allows the DJ to  
blend the cue slider material with the final output mix  
including the microphone. When the knob is rotated left all  
you will hear is the channel slider cue source, when the  
knob is all the way right you will hear what is playing through  
the master output. By blending, beats can be matched  
exactly and segues can be smooth when a song is cued.  
8. The Active Crossfader achieves clean segues  
between the two input channels. "Hard left" selects  
Channel 1. "Hard right" selects Channel 2. With the  
crossfader centered, both channels are live and equal.  
Use the crossfader for fast and seamless segues from one  
selected channel to the other.  
16. The Headphone Volume control adjusts the level  
of the music heard in the headphones  
Note: The crossfader is user replaceable in case of  
failure. Simply unscrew the four lower faceplate screws  
and remove the faceplate. Then unscrew the 2 screws  
which hold it in place, lift it out and disconnect it’s  
cable. Re-attach the new crossfader and screw the  
face plate back onto the unit.  
17. The Headphone Connectors are located on the  
front of the unit. Connect headphones with a standard 1/4"  
stereo plug or 1/8” mini headphone plug.  
9. The Crossfader Slope Adjust changes the rate at  
which the two channels are blended together. Rotating to  
the left creates an even blend of the two channels as the  
crossfader is moved. Rotating all the way to the right  
creates a very quick activation of the opposing channel’s  
signal by the crossfader. This “QUICK CUT” is ideal for  
creating transform effects with the crossfader.  
MASTER/BOOTH OUTPUT SECTION  
18. The Stereo Master Fader controls the overall  
output level. This signal is sent to both the balanced and  
unbalanced master output on the rear panel.  
19. The Zone Level controls speaker volume for a  
remote zone or booth monitors. If you do not use booth  
monitors the output can feed a tape deck, another  
amplifier, another mixer or a satellite speaker system. The  
Zone output can be switched from stereo to mono by use  
of a special rear panel switch. This enables the use of just  
one speaker to hear the total output.  
10. The Crossfader Direction (Hamster) Toggle  
allows the DJ to reverse direction of the crossfader. By  
reversing direction, Channel 2 will be on the left and  
Channel 1 will be on the right. This toggle may also be  
used for various tricks.  
Note: This can also be used to supply line level audio to a  
lighting controller or to lights that are sound activated.  
MIC CONTROL SECTION  
11. The Microphone Connector is located on the front  
panel of the unit. It is a combination XLR-1/4” Neutrik™ jack  
for flexible connection options.  
20. Stereo Output Level Indicator. This inner dual  
12-segment stereo meter tracks the output level.  
It is OK to be “in the red” occasionally, as long as +5dB or  
+8dB are not constantly lit. Set the crossover, equalizer  
and power amp inputs to avoid distortion at each step in  
the audio chain. Proper attention to the meter results in the  
best possible sound without any audible distortion.  
12. The Microphone Gain Control adjusts the input  
level of the microphone.  
13. The Microphone Treble and Bass Controls are for  
EQing your voice through the sound system. The controls  
are detented for setting tone "flat". For best results, use a  
dynamic cardioid microphone.  
21. Power-On LED indicates power is supplied to the  
mixer and the rear panel power switch is set to the on  
position.  
HEADPHONE/CUE SECTION  
14. The Channel Cue Slider allows the DJ to preview  
the pre-fader channels material through headphones.  
Sliding this to the left plays the left channel and sliding to  
the right plays the right channel. You can blend them in  
the headphones by moving the slider to the middle.  
- The Leader in DJ Technology  
© 1 9 9 9  
Industries  
8
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PRO S M-1  
REAR PANEL DIAGRAM...  
1
9
6
5
4
6
4
2
1 1 1 0  
8
7
3
5
3
1. The Power Switch should be turned on after you  
have turned on all input devices and before you turn on  
any devices attached to the output.  
7. The Record Output is for attaching your tape deck. It  
can also be connected to light controllers or other external  
devices. The audio that passes through this connector is  
not controlled by the master so levels are set only by the  
channel and mic input faders.  
2. Power Supply Input Plug your power adapter in  
here before switching on power. See safety precautions  
on page 3 for proper treatment of power.  
8. The Zone Output is unbalanced and controlled by  
Zone Level control on the face panel.  
3. Phono Inputs use unbalanced RCA jacks. Your input  
signal is fed directly to the PRO SM-1's high-quality RIAA  
phono pre-amplifiers so use this input only for turntables.  
Line level sources will overload the sensitive phono pre-  
amps.  
9. The Stereo/Mono Zone Switch allows the user to  
make the signal.  
10. The RCA Stereo Main Outputs are unbalanced  
connectors controlled by the Master fader knob.  
4. The GROUNDS (GND) are the grounding lugs for all  
turntables. Always use these connections with your  
turntables to avoid signal hum.  
11. These 1/4” Stereo Main Outputs are reliable  
Balanced TRS 1/4” connectors controlled by the Master  
fader knob. Power transformers and other devices which  
cause magnetic fields can induce hum in audio cables. This  
can be best resolved by using balanced lines where inputs  
and outputs permit. Balanced lines are also the most  
effective means of reducing or eliminating RF or “radio  
frequency” interference.  
5. Phono/Line Inputs are unbalanced RCA jacks. The  
line input is selected with the slider switch (6) on the rear  
panel. When the slider is moved to the line position you  
can connect stereo audio from HiFi VCRs, cassette and  
reel-to-reel tape decks, DAT machines, CD players, laser  
discs, tuners, even synthesizers or other mixing consoles.  
NOTE: Plug mono audio sources into both Left and  
Right inputs using a “Y” cable connector.  
6. Line/Phono Input Slider Switch. Use this to allow  
line level equipment to be plugged into your phono inputs  
giving you a total of 5 line input options.  
Warning: make sure the LINE/PHONO input  
switch is set to line before playing any line input  
level devices through your mixer  
- The Leader in DJ Technology  
© 1 9 9 9  
Industries  
9
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PRO S M-1  
PRO SM-1 CONNECTION DIAGRAM...  
Turnt able 1  
Turnt able 3  
Powe r  
Tra ns fo rm e r  
Turnt able 2  
CD Playe r  
Main  
Sound Syst e m  
w/ Amplifie r  
Tape Deck  
Boot h  
Sound Syst e m  
w/ Amplifie r  
SPECIFICATIONS...  
Inputs:  
Line: 10K ohm input impedance  
Frequency Response:  
Line: 20Hz-22KHz +/-0.5dB  
75mV rms sensitivity for 1.22V output  
Mic: 10Kohm input impedance unbalanced  
2.5mV rms sensitivity for 1.22V output  
50mV rms max input  
Mic: 20Hz-20KHz +/-0.5dB  
Phono: +/-1dB except for controlled attenuation of  
-3dB @ 20Hz to reduce rumble and  
feedback  
Phono: 47Kohm imput impedance  
1.2mV rms sensitivity @ 1KHz  
Channel EQ:  
for 1.22V output  
Bass: +12/-30dB @60Hz  
Middle: +12/30 @ 1.36KHx  
Treble: +12/30 @ 15KHz  
Outputs:  
Line: 9V rms max  
Headphone: 0.5W into 47ohm  
Channel Curve:  
Distortion: less than 0.01%  
-6, -20, -30dB at 50% fader position  
Signal to Noise Ratio: (maximum output)  
Line: Better theb 90dB  
Power Consumption:  
17 Watt typical  
Mic: Better then 78 dB  
28 Watt with full headphone output  
Phono: Better then 76dB  
- The Leader in DJ Technology  
© 1 9 9 9  
Industries  
1 0  
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PRO S M-1  
BLOCK DIAGRAM...  
- The Leader in DJ Technology  
© 1 9 9 9  
Industries  
1 1  
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®
LIMITED PRODUCT WARRANTY  
1. What is covered and for how long? NUMARK INDUSTRIES LCC ("NUMARK") warrants to the original purchaser that NUMARK'S DJ mixers  
and amplifiers are free from defects in material and workmanship under normal use and service for the period commencing upon the date of  
purchase from an authorized NUMARK dealer and continuing for the following period of time after that date for (2) Years. The warranty is  
extended to (3) Years with the completion of the warranty card provided that the warranty card is completed and returned within (30) days from  
the date of purchase.  
All other NUMARK products are warranteed for (1) Year including but not limited to CD players, turntables, preamplifiers, beatkeepers, equalizers,  
microphones, headphones, and all other accesories.  
2. What is not covered? This Limited Warranty is conditioned upon proper use of the product by the purchaser.  
This Limited Warranty does not cover: (a) defects or damage resulting from accident, misuse, abuse, neglect, unusual physical or electrical stress,  
modification of any part of the product, or cosmetic damage; (b) equipment that has the serial number removed or made illegible; (c) all plastic  
surfaces and other externally exposed parts that are scratched or damaged due to normal use; (d) defects or damage from improper testing,  
operation, maintenance, installation, adjustment, or service of the mixers; (e) crossfaders.  
3. What are NUMARK'S obligations? During the applicable warranty period, NUMARK will repair or replace, at NUMARK'S sole discretion,  
without charge to the purchaser, any defective component part of the mixer. To obtain service under this Limited Warranty, purchaser must first  
contact NUMARK and obtain a return authorization number ("RA# "). Purchaser must then return the mixer to NUMARK in an adequate container  
for shipping, accompanied by purchaser's sales receipt or comparable proof of sale showing the date of purchase, the serial number of the product,  
and the seller's name and address. To obtain an RA# and assistance on where to return the mixer, contact NUMARK customer service at 401-295-  
9000. Upon receipt, NUMARK will repair or replace the defective products. NUMARK may, at NUMARK'S sole discretion, use rebuilt,  
reconditioned, or new parts or components when repairing any product or replace a product with a rebuilt, reconditioned or new product.  
Repaired mixers will be warranted for a period equal to the remainder of the original Limited Warranty on the original mixer or for (90) days,  
whichever is longer. All replaced parts, components, boards and equipment become the property of NUMARK. If NUMARK determines that any  
mixer is not covered by this Limited Warranty, purchaser must pay all parts, shipping, and labor charges for the repair or return of such mixer.  
4. Wh at are th e lim its on NUMARK'S liabilities? THE WARRANTIES GIVEN IN THIS LIMITED WARRANTY, TOGETHER WITH ANY IMPLIED  
WARRANTIES COVERING NUMARK MIXERS, INCLUDING WITHOUT LIMITATION ANY WARRANTIES OF MERCHANTABILITY OR FITNESS  
FOR A PARTICULAR PURPOSE, ARE LIMITED TO THE DURATION OF THIS LIMITED WARRANTY. EXCEPT TO THE EXTENT PROHIBITED BY  
APPLICABLE LAW, NUMARK SHALL NOT BE LIABLE FOR ANY SPECIAL, INCIDENTAL, CONSEQUENTIAL, INDIRECT OR SIMILAR  
DAMAGES, LOSS OF PROFITS, DAMAGES TO PURCHASER'S PROPERTY, OR INJURY TO PURCHASER OR OTHERS ARISING OUT OF THE  
USE, MISUSE OR INABILITY TO USE ANY NUMARK MIXER, BREACH OF WARRANTY, OR NEGLIGENCE, INCLUDING BUT NOT LIMITED TO  
NUMARK'S OWN NEGLIGENCE, EVEN IF NUMARK OR ITS AGENT HAS BEEN ADVISED OF SUCH DAMAGES, OR FOR ANY CLAIM  
BROUGHT AGAINST PURCHASER BY ANY OTHER PARTY. THIS LIMITED WARRANTY IS THE COMPLETE WARRANTY FOR NUMARK'S  
MIXERS, AND IS GIVEN IN LIEU OF ALL OTHER EXPRESS WARRANTIES. THIS LIMITED WARRANTY SHALL NOT EXTEND TO ANYONE  
OTHER THAN THE ORIGINAL PURCHASER OF THIS PRODUCT AND STATES PURCHASER'S EXCLUSIVE REMEDY. IF ANY PORTION OF THIS  
LIMITED WARRANTY IS ILLEGAL OR UNENFORCEABLE BY REASON OF ANY LAW, SUCH PARTIAL ILLEGALITY OR UNENFORCEABILTY  
SHALL NOT AFFECT THE ENFORCEABILITY OF THE REMAINDER OF THIS LIMITED WARRANTY WHICH PURCHASER ACKNOWLEDGES IS  
AND WILL ALWAYS BE CONSTRUED TO BE LIMITED BY ITS TERMS OR AS LIMITED AS THE LAW PERMITS.  
This Limited Warranty allocates risk of product failure between purchaser and NUMARK, and NUMARK'S product pricing reflects this allocation of  
risk and the limitations of liability contained in this Limited Warranty. The agents, employees, distributors, and dealers of NUMARK are not  
authorized to make modifications to this Limited Warranty, or make additional warranties binding on NUMARK. Accordingly, additional statements  
such as dealer advertising or presentation, whether oral or written, do not constitute warranties by NUMARK and should not be relied upon.  
5. How does state law apply to this w arranty? SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATIONS OF INCIDENTAL OR  
CONSEQUENTIAL DAMAGES OR HOW LONG AN IMPLIED WARRANTY LASTS, SO THE ABOVE LIMITATIONS OR EXCLUSIONS MAY NOT  
APPLY TO PURCHASER.  
This Limited Warranty gives you specific legal rights. You may also have other rights, which vary from one jurisdiction to another.  
RETURN INFORMATION  
1. A Return Authorization number must be obtained from Numark through the address or phone numbers below.  
2. A copy of the original sales receipt must also be included for the equipment to be repaired under warranty.  
3. The faulty equipment must be packed in its original packaging.  
4. One additional outer layer of packaging must be included to ensure product safety. Failure to do so may inadequately protect the  
equipment in transit and, therefore, jeopardize the customers warranty.  
5. Nu m ark w ill n ot accep t COD sh ip m en t s an d n o call t ags w ill be issu ed for m erch an dise ret u rn .  
6. Numark will not return repaired merchandise to customers by priority service, unless by written request at the customers cost.  
Requests must be submited in writing with merchandise returned.  
7. The defective Numark equipment should be sent, FREIGHT PREPAID with Return Authorization number clearly printed on the outer  
packaging and original sales receipt enclosed to:  
INDUSTRIES  
Attention: Service Department  
11 Helmsman Avenue  
North Kingstown, RI 02852 USA  
Phone:  
Fax:  
E-mail:  
+1 (401) 295-9000  
+1 (401) 295-5200  
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