Gemini MDJ-900 User Manual Download Page 2

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CAUTION: This product satisfies FCC regulations when shielded cables and connectors are used to connect the unit to other equipment. To prevent 
electromagnetic interference with electric appliances such as radios and televisions, use shielded cables and connectors for connections.
The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) 
instructions in the literature accompanying the appliance.
The lightening flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated ‘dangerous 
voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons

READ INSTRUCTIONS:

 All the safety and operating instructions should be read before the product is operated.

RETAIN INSTRUCTIONS: 

The safety and operating instructions should be retained for future reference.

HEED WARNINGS: 

All warnings on the product and in the operating instructions should be adhered to.

FOLLOW INSTRUCTIONS: 

All operating and use instructions should be followed.

CLEANING: 

The product should be cleaned only with a polishing cloth or a soft dry cloth. Never clean with furniture wax, benzine, insecticides or 

other volatile liquids since they may corrode the cabinet.

ATTACHMENTS:

 Do not use attachments not recommended by the product manufacturer as they may cause hazards.

WATER AND MOISTURE: 

Do not use this product near water, for example, near a bathtub, wash bowl, kitchen sink or laundry tub; in a wet basement 

or near a swimming pool; and the like.

ACCESSORIES:

 Do not place this product on an unstable cart, stand, tripod, bracket, or tab|e. The product may fall causing serious injury to a child 

or an adult, and serious damage to the product. Use only with a cart, stand, tripod, bracket, or table recommended by the manufacturer, or sold with 
the product. Any mounting of the product should follow the manufacturer’s instructions, and should use a mounting accessory recommended by the 
manufacturer.

CART: 

 A product and cart combination should be moved with care. Quick stops, excessive force, and uneven surfaces may cause the product and 

cart combination to over-turn. See Figure A.

VENTILATION:

 Slots and openings in the cabinet are provided for ventilation and to ensure reliable operation of the product and

to protect it from overheating, and these openings must not be blocked or covered. The openings should never be blocked by
placing the product on a bed, sofa, rug, or other similar surface. This product should not be placed in a built-in installation 
such as a bookcase or rack unless proper ventilation is provided or the manufacturer instructions have been adhered to.

POWER SOURCES:

 This product should be operated only from the type of power source indicated on the marking label. 

If you are not sure of the type of power supply to your home, consult your product dealer or local power company.

LOCATION:

 The appliance should be installed in a stable location.

NON-USE PERIODS:

 The power cord of the appliance should be unplugged from the outlet when left unused for a long period of time.

GROUNDING OR POLARIZATION:

• 

If this product is equipped with a polarized alternating current line plug (a plug having one blade wider than the other), it will fit into the outlet 
only one way. This is a safety feature. If you are unable to insert the plug fully into the outlet, try reversing the plug. 
If the plug should still fail to fit, contact your electrician to replace your obsolete outlet. Do not defeat the safety purpose of the polarized 
plug.

• 

If this product is equipped with a three-wire grounding type plug, a plug having a third (grounding) pin, it will only fit into a grounding type 
power outlet. This is a safely feature. If you are unable to insert the plug into the outlet, contact your electrician to replace your obsolete 
outlet. Do not defeat the safety purpose of the grounding type plug.

POWER-CORD PROTECTION:

 Power-supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or 

against them, paying particular attention to cords at plugs, convenience receptacles, and the point where they exit from the product.

OUTDOOR ANTENNA GROUNDING: 

If an outside antenna or cable system is connected to the product, be sure the antenna or cable system is 

grounded so as to provide some protection against voItage surges and built-up static charges. Article 810 of the National Electrical Code, ANSI/
NFPA 70, provides information with regard to proper grounding of the mast and supporting structure, grounding of the lead-in wire to an antenna 
discharge unit, size of grounding conductors, Iocation of antenna-discharge unit, connection to grounding electrodes and requirements
for the grounding electrode. See Figure B.

LIGHTNING: 

For added protection for this product during a lightening storm, or when it is left unattended and unused 

for long periods of time , unplug if from the wall outlet and disconnect the antenna or cable system. This will prevent damage to 
the product due to lightening and power-line surges.

POWER LINES: 

An outside antenna system should not be located in the vicinity of overhead power lines or other 

electric Iight or power circuits, or where it can fall into such power lines or circuits. When installing an outside 
antenna system, extreme care should be taken to keep from touching such power lines or circuits as contact with them 
might be fatal.

OVERLOADING: 

Do not overload wall outlets, extension cords, or integral convenience receptacles as this can result 

in a risk of fire or electric shock.

OBJECT AND LIQUID ENTRY: 

Never push objects of any kind into this product through openings as they may touch dangerous  

voltage points or short-out parts that could result in a fire or electric shock. Never splill liquid of any kind on the product.

SERVICING:

 Do not attempt to service this product yourself as opening or removing covers may expose you to dangerous  

voltage or other hazards. Refer all servicing to qualified service personnel.

DAMAGE REQUIRING SERVICE: 

Unplug this product from the wall outlet and refer servicing to qualified service personnel  

under the following conditions: 
• 

When the power-supply cord or plug is damaged

• 

If liquid has been spilled, or objects have fallen into the product.

• 

If the product has been exposed to rain or water.

• 

If the product does not operate normally by following the operating instructions.  Adjust only those controls that are covered  
by the operating instructions as an improper adjustment of other controls may result in damage and will often require extensive work by a 
qualified technician to restore the product to its normal operation.

• 

If the product has been dropped or damaged in any way.

• 

When the product exhibits a distinct change in performance, this indicates a need for service.

REPLACEMENT PARTS: 

When replacement parts are required, be sure the service technician has used replacement parts specified by the  

manufacturer or have the same characteristics as the original part.  Unauthorized substituions may result in fire, electric shock or other hazards.

SAFETY CHECK:

 Upon completion of any service or repairs to this product, ask the service technician to perform safety checks to determine that  

the product is in the proper operating condition.

WALL OR CEILING MOUNTING: 

The product should not be mounted to a wall or ceiling.

HEAT: 

The product should be situated away from heat sources such as radiators, heat registers, stoves, or other products (including amplifiers) that 

produce heat.

PLEASE READ BEFORE USING APPLIANCE USING APPLIANCE

IMPORTANT WARNING AND SAFETY INSTRUCTIONS!

Summary of Contents for MDJ-900

Page 1: ...Please read the manual carefully before operation WWW GEMINISOUND COM MDJ 900 PROFESSIONAL ME DIA C ON TROL L E R USER MANUAL ...

Page 2: ...t will only fit into a grounding type power outlet This is a safely feature If you are unable to insert the plug into the outlet contact your electrician to replace your obsolete outlet Do not defeat the safety purpose of the grounding type plug POWER CORD PROTECTION Power supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them payi...

Page 3: ... it comfortably and clearly and without distortion Once you have established a comfortable sound level set the dial and leave it there Taking a minute to do this now will help to prevent hearing damage or loss in the future After all we want you listening for a lifetime Used wisely your new sound equipment will provide a lifetime of fun and enjoyment Since hearing damage from loud noise is often u...

Page 4: ...r III AAC 16 bit 44 1 kHz stereo AAC Core AAC Plus AAC Plus v2 AIFF 16 bit 44 1 kHz stereo Supported file systems on USB Storage Devices include FAT FAT32 HFS NTFS When placed in MIDI mode the MDJ 900 can send MIDI data from the buttons and dials to a computer to control the parameters and playback controls of DJ software The audio playback from the computer can also be output from the MDJ 900 Bef...

Page 5: ...4 Track Search In Out Adjust Reloop Exit 2 x2 Loop Roll Jog Adjust Shift 4 3 LCD Display Auto Loop Back Eject USB Source Select Settings Jog Start Time Jog Stop Time Filter Vinyl Quantize Slip Mode Keylock Auto Cue Tempo Slider Jog Wheel Browse Select Search Window Hot Cues 1 4 Delete Cues 1 4 Sync Master Beat Offset 2 3 6 5 4 7 8 9 1 10 12 11 13 14 15 16 17 19 18 20 21 22 23 24 25 26 27 A B C D E...

Page 6: ...OUT C on the rear panel Plug the other end of the USB cable into any available USB port on your computer This will enable you to use the MDJ 900 in MIDI mode LINK Plug in the LAN cable into the LINK OUT B on the rear panel Plug the other end of the LAN cable into another MDJ 900 LAN port This will enable you to use the MDJ 900 in LINK mode If you are using more than 2 MDJ 900s plug a LAN cable int...

Page 7: ...s of the current playing song When elapsed time is displayed the left edge of the graph lights green to show how much of the song has elapsed When remaining time is displayed the right side of the graph lights green to show the remaining time OTHER SCREEN MESSAGES FILTER Tells what type of filter is active and the amount applied MSD READ ONLY Indicates that the inserted media is not writable MASTE...

Page 8: ...E on the top of the MDJ 900 Upon loading the device the LCD display will show the folders and tracks on the USB storage device To eject the USB drive press EJECT or MIDI and remove the USB storage device NOTE Before powering off the MDJ 900 it s a good idea to remove any connected USB storage device Turning the browse knob 14 activates the browse screen The browser shows the available files and fo...

Page 9: ...moved away from the user up The rate at with the playing speed is changed is indicated on the LCD display P I TCH B E ND Pressing the PITCH BEND 25 will temporarily raise or lower the pitch from the existing pitch setting Releasing the buttons will return the pitch to the original setting P I TCH RANGE Pressing shift and pitch bend 25 toggles the range between 4 8 16 24 50 and 100 Please note that...

Page 10: ...ck press LOOP IN 8 at the desired starting position for the loop loop in point Press LOOP OUT ADJUST 8 at the desired ending position for the loop loop out position The loop out point is now set and loop playback starts from the loop in point ADJUSTING A LOOP To adjust the loop once the loop is set press the IN 8 button to adjust the in point or press the OUT ADJUST button to adjust the out point ...

Page 11: ...tinues inaudibly underneath Once the jogwheel is released track playback will continue from the playback position playing underneath SLIP WITH LOOP To use SLIP with loop playback enable SLIP mode by pressing the SLIP 22 button Set a loop using the IN OUT controls and loop playback will begin The SLIP 22 button will begin flashing indicating SLIP mode is active and the position playing underneath is...

Page 12: ...r press the back button 15 If you would like to change your search field for instance from FILENAME to TITLE hold shift and turn the browse knob If you add or remove music from your USB storage device It s a good idea to also update your SearchDB To do this just hold shift and press the browse knob again You will be asked if you would like to update your database or use the existing Choose update ...

Page 13: ...your AUDIO device Refer to DJ software s instructions SOUND CARD The MDJ 900 USB audio interface has the following bit depth sample rate options available 24 bit 192kHz 24 bit 96 kHz 24 bit 48 kHz 16 bit 48kHz 16 bit 44 1 kHz To change these settings press the USB source select button 17 and then press the SETTINGS button 17 Scroll down to the SOUND CARD entry press the browse knob to select turn ...

Page 14: ...etting MIDI Channel 0 15 Sets MIDI Channel Vinyl Mode On Off Turns Vinyl scratch mode on or off Platter Nudge 1 2 3 4 5 Determines platter nudge sensitivity Load Settings from MSD Loads stored settings off mass storage device Save Settings to MSD Save settings to mass storage device Reset Settings Reset settings to default values Software Version Current software version Exit Exit the menu Setting...

Page 15: ...he computer does not recognize the device try powering the unit off and rebooting the computer If the DJ software does not list the device ensure that you are using the latest version by downloading any updates to your DJ software If the MDJ 900 mapping does not appear in your DJ software s list go to geminisound com for downloads and support GENERAL TROUBLESHOOTING Make sure your MDJ 900 is runni...

Page 16: ...is manual may be reproduced stored in a retrieval system or transmitted in any form or by any means electronic electrical mechanical optical chemical including photocopying and recording for any purpose without the express written permission of Innovative Concepts and Design LLC It is recommended that all maintenance and service on this product is performed by nnovative Concepts and Design LLC or ...

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