User manual SOUNDCRAFT D-MIX1000

[. . . ] SOUNDCRAFT USER GUIDE · Soundcraft Electronics 1995 All rights reserved Parts of the design of this product may be protected by worldwide patents. Part No. ZM0078-03 Information in this manual is subject to change without notice and does not represent a commitment on the part of the vendor. Soundcraft Electronics shall not be liable for any loss or damage whatsoever arising from the use of information or any error contained in this manual. No part of this 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 Soundcraft Electronics. [. . . ] From D-Mix 1000 Signal + (b) Unbalanced Connection Input To External Device Mono Output & Sub Bass Output The Mix and Aux outputs are on 3-pole a gauge jack sockets, wired as shown on the left and below, and incorporate ground compensation which helps to avoid ground loops and their associated hums and buzzes when feeding into unbalanced equipment. Signal Ground Sense Screen From D-Mix 1000 Ground Compensated Output Signal + (a) Balanced Connection To External Device Screen Ground Sense From D-Mix 1000 Ground Compensated Output Signal + (b) Unbalanced Connection To External Device Screen Ground Sense Experience has shown that sometimes it is better not to connect screen at external device end. Outputs Installation 2. 9 C onnec tions Left Signal Right Signal Ground The DJ Booth and Headphone outputs are connected via 3-pole "A" gauge jacks. Booth & Headphone Outputs Signal Send Gnd/Screen Sound To Light Output Gnd/Screen The Sound to Light output can be connected via 3-pole "A" gauge jack. Tip Ring Sleeve Signal Signal Ground Aux Send The Aux Send can be connected via 3-pole "A" gauge jack. Aux Return Left Ret Right Ret Ground The Aux Return can be connected via 3-pole "A" gauge jack. 2. 10 Installation S etting Up You will probably use your D-Mix1000 with a wide range of different types of sound source, and these will be at varying signal levels. It is important to set the SENS control correctly to give the best performance. If the input level is too high the signal will distort as it overloads the channel and causes clipping. If it is too low the level of any background hiss will be more noticeable and you may not be able to get enough signal level to the output of the mixer. This is illustrated in the diagram below. Clipped Signal Noise If the signal is too high, clipping distortion may occur. Signal Noise If the signal level is too low it may be masked by the noise. Set up the Stereo/Line channels as follows: (1) Plug in the chosen source (e. g Turntables, CDs). (3) Provide the chosen source with a typical signal level and press the CUE button just below the fader. (4) Adjust the SENS until the meter is just reaching the yellow LED (0dB) at a typical maximum source level with a steady signal. This leaves enough headroom to cope with peaks in the signal without distortion. (6) With your amplifier and speakers connected, set the amplifier by using the amplifiers gain control to give the level that will be required in actual use. (7) All the levels should now be set correctly to avoid clipping etc. Installation 2. 11 R emoving A nd R eplac ing Modules Removing Modules Each Input Module is secured to the D-Mix1000 frame by two screws, the Master module is secured by four screws. Remove the screws holding in XLRs and the nuts holding the jack sockets in. You may find it helpful to refer to the black sticker on the console to make sure you are removing the correct components for the module which you require. Slowly turn the console back over to its original position, the module should now be free for removal. Lift the module a few inches out from the desk frame, just enough so the ribbon cable is exposed. The module should now be completely free from the desk. Replacing modules Line the module up so it can slot easily into the desk frame and connect the ribbon cable back onto the PCB. Turn the console onto its underside and replace XLR fixing screws and Jack socket nuts. Turn the console back to its original position and replace the module fixing screws situated on the face of the module. It is important to note that the modules may be configured to the users requirements but caution must be taken not to damage the main wire loom. Be careful not to trap the loom between any of the modules. 2. 12 Installation R emoving A nd R eplac ing The C ros s F ader With a cross-head screw driver, remove the two Cross Fader fixing screws. Gently lift out the fader, being careful not to apply too much force on the wire loom connecting the Cross Fader to the console. To replace the Cross Fader follow the instructions above in the opposite order. Installation 2. 13 J umpers Several functions on the D-Mix1000 may be altered by internal adjustment of jumpers on the PCBs. Mic/Line Input Module Jumper Options (SC3451) J1A J1B J2A J2B J3 Fit to disable +48V phantom power to the Mic input XLR. [. . . ] The routing switches are interlocking. 10 The output signal level from the channel is set by the long-travel FADER. 11 The large illuminated CUE switch enables the stereo pre-fade channel signal to be routed to the DJ's headphones and the booth monitors if required. Jumper Options J1, 2A J1, 2B J3, 4 Fit to enable RIAA equalisation on Line 1 (Default). Fit in position B for Aux source post-fade Rear Connector Panel Stereo Input Module 4. 7 Specification Line Inputs Input impedance Maximum input level Sensitivity range Noise 20k (RIAA 47k) +22dBu -46dBu to +8dBu -80dB General Frequency Response Distortion, Line In to L-R Output +0, -1. 0dB, 20Hz to 20kHz 0. 005% @ 1kHz 4. 8 Stereo Input Module Master Module Description & Operation Specification Master Module 4. 9 7 8 4 5 6 9 12 10 11 3 13 1 14 15 16 2 4. 10 Master Module Mas ter Module The Master module incorporates the mix amps for the stereo and Aux busses, master level control for the mixer outputs and provides the DJ with headphone or loudspeaker monitoring and level display on high quality vacuum display bargraph meters. Main Outputs 1 Two long travel Master FADERS control the final output level of the Stereo mix and a Mono sum of the Left/Right outputs. 2 The input channels are provided with routing switches which allow the signal to be sent directly to the Stereo Mix, or to one side of the A/B CROSSFADER, which then feeds the main outputs via the master faders (see above). [. . . ]