User manual RANE MP 24Z

[. . . ] OPERATORS MANUAL MP 24z DJ MIXER MIC CONTROL -2 -6 2 6 SOURCE CONTROL LINE 1 LINE 2 LINE 1 LINE 2 LINE 4 LINE 5 AUX/ PH 1 LINE 3 AUX/ PH 2 LINE 3 PH/ AUX 3 LINE 6 LINE 4 LINE 5 LINE 3 LINE 6 PROGRAM EQUALIZER LOOP ENGAGE ZONE LEVEL 4 2 6 8 0 10 EQ ENGAGE -6 -2 2 6 -6 -2 2 6 -6 -2 2 6 -6 -2 2 6 MIN MAX TREBLE -2 -6 2 6 CUE CUE CUE CUE MIN BASS MAX MIN MID MAX 1 2 3 4 BOOTH LEVEL 4 2 6 8 0 10 MIN MAX HI-MID MIN MAX TREBLE MIN MAX MID -2 -6 2 6 10 10 10 10 10 10 10 10 8 8 8 8 8 8 8 8 LEFT 10 10 RIGHT PEAK PROGRAM METER MIN MAX BASS 6 4 2 6 8 4 4 4 4 4 4 4 4 6 6 6 6 6 6 6 -20 -15 -10 -7 -5 -3 -1 0 +1 +3 +5 +8 dB 8 8 MIN MAX AUX MIC LEVEL 4 2 MIN 6 8 MAX MAIN OL MIC LEVEL 2 2 2 2 2 2 2 2 6 6 MP 24z 4 4 MIXER 0 0 0 0 0 TM 0 0 0 ACTIVE CROSSFADER 2 3 2 8 10 2 0 4 2 4 6 1 ENGAGE B HEADPHONE CONTROL 4 2 6 8 0 10 6 CUE PGM 2 2 STEREO 6 MONO F 60 1 2 3 CUE / PGM 4 0 0 ENGAGE MIC ASSIGN POWER CUE LEFT / PGM RIGHT A 10 8 6 4 2 0 ASSIGN MASTER LEVEL LEVEL PAN QUICK START Don't!Quick-starting an MP 24z is like trying to quick-start a 747. 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. [. . . ] There is science involved in de-humming a system, however it is sometimes faster to just experiment. Occasionally, directly grounding the chassis of the mixer to the power amplifiers with a large gauge wire helps. And by the same token, isolating the two when they are installed in the same rack may have a quieting effect. A word of caution: Don't do anything with Level controls up, power on, or under any condition that could cause damage to delicate loudspeakers and ears. Make your changes with the system off, then power up carefully to make sure you haven't made matters worse. Bring up Level controls slowly and with great caution. Surprises are nice on birthdays and Christmas, and rarely any other time. If hum problems only exist on the Phono Inputs, there is always a possibility for experimental troubleshooting at this end also. Experience has shown that just because the manufacturers put ground wires on them, they are not always connected!Some turntables even have two ground wires, one for the tone arm and one for the chassis. Sometimes only one of these should be connected for optimum signal-to-noise, sometimes both, sometimes none. The rule is: "Whatever works, works. " Manual- 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 counter-clockwise or in their center detents, whichever applies. Simultaneously raise the Channel 1 fader and the MASTER LEVEL fader. Before much travel is reached on the faders, the results should be heard. If not, shut everything down and recheck connections, power to the mixer (look for the yellow POWER light) and ancillary devices (EQs, crossovers, amplifiers, etc. ) Once an output is established from the turntable, go ahead and try everything else. Assign all Inputs to the Channels they will be used, and test the system. Once all sources are set as desired, proceed. REAR PANEL ADJUSTMENTS There are some controls on the rear panel which need to be set. Set the METER SENSITIVITY ADJUST so the system is at maximum level, (usually just short of amplifier clipping). Run the system up to this maximum level and turn the METER SENSITIVITY ADJUST so that the highest peaks on the PEAK PROGRAM METER occasionally hit the +8 dB indicator. This warns the operator that further pressure on the throttle will overdrive the system. [. . . ] Having successfully removed the chassis, the PCB assemblies will be far easier to service. If it is required to get to some of the parts on the individual Channel PCBs, the only way to extract these is to either remove the top or the bottom PCBs. You must first remove the screws adjacent to each connector or they will not budge. Once all of the connector screws are removed from the top or bottom PCB, you should be able to remove the board. [. . . ]