OPERATORS MANUAL MM 8z MOJO CLUB MIXER QUICK START Here are a few basic "plug and play" steps to get you performing. If you are a first-time DJ mixer user, please do yourself a favor and at least read this section. Begin by making sure your amplifier is off before making connections. The MM 8z has all unbalanced connectors, except for the ¼" balanced Main Outputs and XLR Mic Inputs. Plug a source component, such as a CD player, into one of the four LINE Inputs on the rear. Connect the MAIN OUTPUTS to your amplifier. Set all front panel controls to the middle of their travel and all pushbuttons to their out position. Slide the MASTER LEVEL down to 0. Set the INPUT SELECT switch to your active Source Input. Plug in the MM 8z's power supply and see the PWR indicator illuminate. Turn on your source and amplifier. Slowly turn up the MASTER LEVEL, as the meters light and music is heard from the speakers. You can get tripped up at two places. If you have a phono signal into one of the four PH/LN Inputs, be sure the PH/LN switch is in the PHONO position (in); likewise, when using a tape deck or CD into these Inputs, be sure the switch is in the LINE (out) position. If you plug into the PROGRAM LOOP, the internal signal path is broken. Be sure that a complete loop is made, to and from an outside device. Couldn't be easier, right? With the CROSSFADER CONTOUR set to full CrossFader Contour counter-clockwise position, it operates as a typical constanttravel A B power crossfader. Set to clockwise position, the crossfader 0 has the very steep slope as indicated in Figure 1 to the right. 20 Now that was a pretty quick start, right? 40 Never connect anything except a Rane RS 1 to the 60 thing that looks like a red telephone jack on the rear of the 80 MM 8z. This is an AC supply and requires some special attention if you do not have an operational power supply 100 exactly like the one that came with your unit. Consult the Rane factory for a replacement or substitution. Figure 1. Crossfader Contour control dB Attenuation Slow limit Fast limit WEAR PART This product contains the following wear part subject to the ninety (90) day warranty period described on page Service-1: (1) Active Crossfader Assembly F 60. Manual-1 FRONT PANEL DESCRIPTION MAIN MIC ON switch: puts the Main Mic signal into the mixer signal path. When the switch is pressed in, the Main Mic is on and the adjacent red indicator blinks. Front panel MAIN MIC input: accepts a balanced microphone with an XLR connector. A parallel Main Mic Input is on the rear of the unit. Do not connect microphones to both front and rear Main Mic inputs. MAIN MIC LEVEL control: adjusts the level of the Main Mic Input. MIC OVERLOAD indicator: monitors both Main and Aux Mic Inputs, before and after the Mic EQ. It lights when the signal exceeds the Mic section's output capability (3 dB below clipping). Occasional flickering is acceptable; however, steady lighting requires a reduction in the Mic LEVEL control to prevent distortion. AUX MIC ON switch: puts the Aux Mic signal into the mixer signal path. The adjacent red indicator blinks when the switch is pressed in, indicating that the Aux Mic is on. AUX MIC LEVEL control: adjusts the level of the Aux Mic Input. MIC EQ controls: contour the frequency response of the summed Main and Aux Mic Inputs. Source Input Select switch: selects either a Phono/Line or Line Input for the Source. In the center position the Source Input is muted. Source EQ controls: contour the frequency response of the selected Input. Source Input fader: controls the level of the selected Input. Source ASSIGN PRE/POST CROSSFADER switches: are provided for Inputs 1 and 4. In the PRE (up) position, this Input is routed to the Crossfader. In the POST (down) position the Input bypasses the Crossfader. ACTIVE CROSSFADER: controls the relative output level from the summed A and B Mixes. When the fader is at its far left, only the A Mix is heard from the Outputs. As the fader is moved toward the right, the amount of B Mix is increased and the amount of A Mix is decreased. When the fader is centered, equal amounts of A and B Mixes are routed to the Outputs. Fully right is all B Mix at the Outputs. Manual-2 CROSSFADER CONTOUR control: Allows adjusting the "shape" of the Crossfader response from a gentle curve for smooth, long running fades, to the steep pitch required for top performance cut and scratch effects. See Figure 1 on page Manual-1. Meter and Mode switch: This peak-dBu reading meter displays one of two modes, depending on the switch position. In the LEFT/RIGHT (out) position, the meter indicates the stereo level in the LEFT and RIGHT Main Outputs. In the CUE/PRG (in) position, mono CUE level is displayed on the Left meter and mono PROGRAM level is displayed on the Right meter. MASTER LEVEL fader: adjusts the level at the rear panel Main Outputs. AUX INPUT: This stereo pair of RCA connectors is an extra line level Input which sums with the other signals before the Master Level fader. AUX IN LEVEL control: adjusts the level of the front panel Aux Inputs. AUX OUTPUT: This stereo pair of RCA connectors provides an extra line level output mix. This is the same signal as the Main Outputs, but with a separate Level control. AUX OUT LEVEL control: adjusts the level of the front panel Aux Outputs. This control is independent of the Master Level fader and Main Outputs. CUE switches: Pressing in any or all of the CUE pushbuttons routes the respective Source to the Headphone and Meter Cue sections. The adjacent yellow indicator illuminates when the switch is depressed. HEADPHONE PAN control: adjusts the relative levels of Cue and Master signals mixed together in stereo for the headphones. Counterclockwise rotation increases the amount of Cue signal; clockwise rotation increases the amount of Master signal. HEADPHONE LEVEL control: adjusts the volume for the headphones. HEADPHONE Output jack: This stereo ¼" TRS (Tip-Ring-Sleeve) jack accepts ¼" TRS stereo headphone plugs (do not use mono plugs). POWER "ON" indicator: When the yellow indicator is lit, the MM 8z is ready to go. Fader Cleaning With heavy use in harsh environments, the faders may need lubrication. This treatment extends longevity and can make used faders as good as new. The fader assembly must be removed from the MM 8z for proper cleaning. We recommend any of the following cleaning solutions: Caig Cailube MCL 100% spray lubricant Caig Cailube MCL 5% spray cleaner CRC 2-26 (www.crcindustries.com) Order CaiLube MCL® from: CAIG Laboratories, Inc. 12200 Thatcher Ct. Poway, CA 92064 Phone 858-486-8388 Fax 858-486-8398 Web http://www.caig.com REPLACING THE ACTIVE CROSSFADER The Crossfader may be removed without any disassembly of the MM 8z itself, and may be performed while the unit is operating with no interruption of the audio signal. F 60 and F 45 Fader Kits are available from your local retailer or the factory. The kit includes full assembly including knobs, ribbon, and face plate. 1. Remove the two (2) outer screws attaching the crossfader assembly to the front panel. 2. Pull the Crossfader Assembly forward and unplug the ribbon from the connector on the bottom board. 3. Proceed with Cleaning Instructions, or install the replacement assembly by reversing the above instructions. CLEANING INSTRUCTIONS 1. Hold the fader assembly away from the mixer. 2. Position the fader at mid-travel. 3. Spray cleaner/lubricant into both ends of the fader. 4. Move the fader over its full travel back and forth a few times. 5. Shake excess fluid from the fader assembly. 6. Wipe off excess fluid. Manual-3 TOP / REAR PANEL DESCRIPTION Remote POWER Supply Input: The unit is supplied from the factory with a Rane Model RS 1 remote power supply suitable for connection to this input jack. The power requirement of the unit specifies an 18 volt AC center-tapped transformer only. This is not a telephone jack. Never use a power supply with your unit other than the one supplied or a replacement approved by Rane Corporation. Using any other type of supply may damage the unit and void the warranty. Chassis ground point: This screw is provided for grounding purposes. This unit comes with an outboard power supply which does not ground the chassis through the line cord. The MM 8z can be grounded either to another chassis which is earth grounded, or directly to the grounding screw on an AC outlet cover with a wire connected to this chassis screw. PHONO GROUND screw: These screws provide a place to connect the ground wire from a turntable. PHONO/LINE switch: These switches change the Input from a PHONO (pushbutton in) to a LINE (pushbutton out). PHONO/LINE INPUTS: These stereo pairs of RCA connectors are an Input for a PHONO (RIAA) stage for magnetic cartridges or a LINE stage suitable for any device, such as a CD player. LINE INPUTS: These stereo pairs of RCA connectors are an Input for any LINE level device. PROGRAM LOOP jacks: These ¼" TRS (Tip-Ring-Sleeve) jacks allow stereo external processing of the Program signal. The tips connect the sends to the processor inputs, and the rings connect the returns from the processor. These are switching jacks--always complete the loop when connecting a send and return, or no sound will be heard. MAIN OUTPUTS: These ¼" TRS jacks provide a balanced line level output. TAPE OUTPUTS: This stereo pair of RCA connectors is a line level Output of Mix program (without Mic or Aux Inputs). The signal is unaffected by the MASTER LEVEL fader. It is intended for use with a tape recorder, but is not restricted to that purpose. PRE/POST LOOP switch: With the switch pressed in the PRE (in) position, the TAPE OUTPUTS have the signal before processing by an external device connected to the PROGRAM LOOP. Releasing the switch to POST (out) provides the TAPE OUTPUTS with the signal that has been processed by an external device connected to the PROGRAM LOOP. If no plugs are inserted in the PROGRAM LOOP, this switch has no effect. MAIN MIC LOOP jack: This ¼" TRS jack is for inserting external mono signal processing in the MAIN MICROPHONE circuit path only. The tip connects the send to the processor inputs, and the ring connects the return from the processor. This is a switching jack--always complete the signal loop when connecting a send and return, or no sound will be heard. AUX MIC jack: This ¼" balanced TRS Input accepts wireless mics or another line-level mono source. Rear panel MAIN MIC input: This XLR Input connects a balanced microphone. The same MAIN MIC Input is on the front of the unit. Do not connect microphones to both front and rear MAIN MIC Inputs. Manual-4 MM 8z CONNECTION With the MM 8z's ability to accommodate a wide variety of systems, these basic guidelines will assist the user in incorporating this mixer into their equipment setup. Since most source components (e.g., turntables, disc players, tape decks) used with the mixer are consumer grade, the MM 8z features unbalanced RCA Source Input connectors. When using the PH/LN inputs, be sure the adjacent switch is in the correct position for the connected device: pushbutton in for phono, out for line level. Ground screws attach the turntable ground wires, which help eliminate hum or buzz. The front and rear panel Main Mic Inputs are XLR connectors, for use with a balanced output microphone of any impedance. Use only one mic at a time in the front or rear jack. Effects can be inserted in the Main Mic signal path thru the ¼" unbalanced TRS MAIN MIC LOOP jack. Use a special TRS send/return cable: tip = send, ring = return, sleeve = ground. Refer to the wiring diagram below. The Auxiliary Mic input is ¼" balanced TRS jack, useful for wireless mics and other high-impedance sources. The MAIN OUTPUTS are ¼" balanced TRS connectors, which provide good hum rejection and allow long (greater than 10 feet) lengths of interconnect cable without significant losses (see Sound System Interconnection on page Manual-10 for proper wiring of connector/cable). The PROGRAM LOOP has left and right ¼" unbalanced TRS connectors for sending the Source program signal to an external effects device and returning the signal back to the mixer. Use a special TRS send/return cable: Tip = send, Ring = return, Sleeve = ground. Refer to the wiring diagram below. Remember, these are switching jacks--always complete the loop when connecting the send to and return from an external device. Two sets of outputs can provide convenient connections for recording equipment. The TAPE OUTPUT unbalanced RCA jacks provide an output for recording program material. If you want signal processing via the Program Loop to have an effect on the recording, let out the PRE/POST Record push-button to the POST position. The TAPE OUTPUT does not contain any signal from the Mic or Aux In sections. If you need to record the mics, use the Aux Out for your recording signal; this output is a composite of the Program, Microphone, and Aux Inputs. Send-Retu ...