OPERATORS MANUAL MP 24z DJ MIXER QUICK START Don't! Quick-starting an MP 24z is like trying to quick-start a 747. It's just not something you do. Trust us, you don’t want to make mistakes with this sucker. So just this once—please—we highly recommend you read this entire manual: front-to-back, every single page, every single word. It will familiarize you with the many intricacies of the MP 24z, not to mention all the nooks and crannies.
FRONT PANEL DESCRIPTION 햲 POWER “ON” indicator: Illuminates anytime the MP 24z is connected to an appropriate power source (see Panel). , Rear 햳 SOURCE CONTROL selectors: Provide Input selection between the various Phono and Line Inputs for their respective mixing Channels. 햴 Input channel faders: Control the relative Levels of each of the four Input mixing Channels.
햿 LOOP ENGAGE switch: Controls the Switchable Effects Loop; pressing it to its down and locked position routes the main signal through the processor attached to the SWITCHABLE LOOP connectors on the rear. (See Rear Panel 햾 and 햿.) 헀 MASTER LEVEL fader: Determines the program and mic level at the Main Outputs. Unity gain is approximately “4.5”. 헁 BOOTH LEVEL control: Adjusts the program and mic level at the Booth Outputs. Unity gain is approximately “6.5”.
REAR PANEL DESCRIPTION 햲 BALANCED MAIN OUTPUT connectors: Provide a fully balanced Main Output signal—pin 2 is (+), pin 3 is (–) and pin 1 is signal ground. Pin 3 must never be grounded for unbalanced operation. Use only pin 2 as hot and pin 1 as return for any unbalanced operation. 햳 UNBALANCED MAIN OUTPUT connectors: Provide MAIN OUTPUT signals on ¼" TS (tip-sleeve) unbalanced connections.
햽 TAPE OUTPUT jacks: One pair of RCA jacks provides pre-EQ, pre-LOOP Program Outputs. The other pair supplies preEQ, post-LOOP Program Outputs. The microphone signals are not available at these Outputs, however they are selectable using an internal jumper block. (See Service Information on page Manual-9.) 햾 SWITCHABLE LOOP SEND jacks: Use these ¼" unbalanced Left and Right Outputs for driving the inputs of a processor activated by the front panel LOOP button.
MP 24z CONNECTION Even though the system variations are limitless in most applications where the MP 24z is used, an installer must follow some basic interconnect guidelines. Unfortunately, even though the system and the primary components such as mixers, processors and amplifiers are of commercial grade, most of the source components, i.e. turntables, disc players, tape decks and so on are consumer grade, with consumer interconnect limitations.
OPERATING INSTRUCTIONS INITIAL OPERATION Operation of the MP 24z is fairly straightforward, deviating only slightly from other products of its type. Assuming at least one turntable is connected and assigned to PHONO 1, operation consists of the following: Make sure all faders are set to zero, the MIC, LOOP, EQ, and ACTIVE CROSSFADER are all disengaged, (switches out) and that all rotary LEVEL controls are either fully CCW or in their center detents, whichever applies. Select PHONO l on Input Channel 1.
MICROPHONE OPERATION To use the mic, connect it to the appropriate connector, and set the PHANTOM POWER switch to the desired mode (it’s a good idea to have the Phantom Power in the on position for condenser mics, off for dynamics). Leave the MASTER LEVEL fader in roughly the same location as it was for the music that’s been playing, press the MIC ENGAGE switch and slowly adjust the MAIN MIC (or AUX MIC) LEVEL.
SERVICE INFORMATION CHANGING INTERNAL JUMPER BLOCKS There exists several programmable options built into the MP 24z. All are located on the Main Board which is the topmost PCB. Access is gained by removing the seven (7) screws from the top cover. See the main board assembly diagram later in this manual. Dots on the circuit board indicate jumper positions as shipped from the factory. To change: pull the jumper block straight up, move over one pin and push back down. That's all there is to it.
