Manuel d'utilisation / d'entretien du produit M-48 du fabricant Roland
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Owner’s Manual Copyright © 2009 ROLAND CORPORATION All rights reserved. No part of this publication may be reproduced in any form without the written permission of ROLAND CORPORATION. Before using this unit, carefully read the sections entitled: “USING THE UNIT SAFELY” and “IMPORTANT NOTES” (p.
2 Introduction Check the included Items The following items are included with the M-48. Make sure that all of these items are present. If anything is missing, please contact your dealer.
3 Main Features ● The flexibility of 40-channel mixing with easy operation enabled by grouping The M-48 allows you to mix up to 40 channels of digital audio sent via REAC. You can individually adjust the level and pan of 40 source channels and then assign the 40 sources to 16 stereo groups for convenience.
4 Table of Contents Check the included Items ........................................................................................................................................................................................... 2 Main Features ..
5 USING THE UNIT SAFELY 002a ● Do not open or perform any internal modifications on the unit. .......................................................
USING THE UNIT SAFELY 6 006 ● When using the unit with a mic stand, the rack or stand must be carefully placed so it is level and sure to remain stable. If not using a mic stand, you still need to make sure that any location you choose for placing the unit provides a level surface that will properly support the unit, and keep it from wobbling.
7 IMPORTANT NOTES 307 ● Before connecting this unit to other devices, turn off the power to all units. This will help prevent malfunctions and/or damage to speakers or other devices. 351 ● Using the unit near power amplifiers (or other equipment containing large power transformers) may induce hum.
8 Panel Descriptions Here you can select the layer for the groups that you want to operate. The button corresponding to the currently shown layer will light. [1-8] button Selects groups 1–8. [9-16] button Selects groups 9–16. * If the button of the layer not shown is blinking, this means that Solo is turned on for a group in that layer.
Panel Descriptions 9 [LO GAIN] button This button allows you to adjust the EQ low gain. The low gain (center frequency 120 Hz) can be boosted or cut by up to 15 dB.
Panel Descriptions 10 [ATT] knob This adjusts the final output level of the headphones. Normally, you should use the top panel PHONES [VOLUME] knob to adjust the headphone output level. Use the [ATT] knob to adjust the output level appropriately for the sensitivity of the headphones you’re using.
11 Installation By attaching the included mounting bracket to the M-48, you can place it on a desk at a convenient angle. * Spread a soft cloth or similar material under the mounting bracket so that the bracket does not scratch the surface on which it is placed.
Installation 12 • Wing nut x 1 (included) • Washers x 2 (included) • Rubber washer x 1 (included) • Screws for fastening the M-48 x 2 (included) 1 Attach the mounting bracket to the mic stand. Attach the washers, mounting bracket, and other parts to your mic stand in the order – shown in the illustration.
Installation 13 • Nut x 1 (included) • Rubber washer x 1 (included) • Screws for fastening the M-48 x 2 (included) 1 Attach the mounting bracket to the mic stand. Attach the rubber washer, mounting bracket, and other parts to your mic stand in the order – shown in the illustration.
Installation 14 By using the Roland APC-33 all-purpose clamp (sold separately) in conjunction with the included mounting bracket, you can freely attach the M-48 to any part of a mic stand.
Installation 15 If you’re using a commercially available Cat5e Ethernet cable, attach the included REAC connector cover to the REAC port. The REAC connector cover must be attached in order to minimize electromagnetic noise. 1 Hook the included REAC connector cover over the tab of the REAC port.
16 Connecting External Devices * The M-400 must be running system software version 2.0 or later. * The M-48 can be set and managed from the M-400 only if the M-48 is connected to the M-400’s REAC B port via the S-4000D.
Connecting External Devices 17 * The S-1608 system must be running system software version 2.0 or later. If you’re using the S-4000 system, the S-4000 system must be running system software 2.
Connecting External Devices 18 * Up to four S-4000D can be connected in series. Approximately 200 microseconds of transmission delay will occur for each unit. * Up to twenty-four M-48 units can be connected. For more advanced configurations, call your local Roland Systems Group representative.
Connecting External Devices 19 * If headphones are connected to both the PHONES jack 1 and jack 2, make sure that the combined impedance of the headphones is not less than 16 ohms. * The LINE OUT L/R jacks are balanced TRS type jacks, and are wired as follows.
Connecting External Devices 20 The M-48 supports REAC EMBEDDED POWER. When the M-48 is connected to the S-4000D via a REAC cable, power will be supplied via the REAC cable. REAC EMBEDDED POWER is technology that uses a Cat5e cable to supply not only REAC audio signals but also power to a REAC device.
21 Making Settings for the M-48 In order to take full advantage of the M-48, you must correctly understand the M-48’s settings and operation as a 40-channel mixer, and make the appropriate settings. The sources 1–40 that are input via REAC are mixed by the M-48’s 40-channel mixer.
Making Settings for the M-48 22 In addition to setting the source level, pan, and source assign settings, the mixing engineer can also make the following settings. * For details on how to make these settings, refer to the owner’s manual of the M-400 (Ver.
Making Settings for the M-48 23 Example Setups Example setup for the Drummer Level Pa n 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Source Groups for the drummer * Level/pan settings sho wn are approximate .
Making Settings for the M-48 24 Example setup for lead vocalist 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 *1 The level should be turned down f or unused sources. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Groups for the lead v ocalist Keys *1 Snare Hi Hat Ride Crash Overhead L Bass E.
Making Settings for the M-48 25 Example setup for backing vocalists 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Groups for backing v ocalist 1 *1 *2 Drums Lead V ocal *1 *2 There is no need to use all of the gr oups.
26 Adjusting the Mix Adjust the volume of each group to obtain an appropriate monitoring balance. 1 Press the [1-8] or [9-16] button to select the layer of the groups that you want to control. The button of the displayed layer will light. 2 Press the [VOLUME] button.
Adjusting the Mix 27 Here’s how to adjust the pan of each group. 1 Press the [1-8] or [9-16] button to select the layer that includes the group whose pan you want to adjust. The buttons for the displayed layer will light. 2 Press the [PAN] button. The [PAN] button will light; now you can use the [Control] knobs to adjust the pan.
28 Using Effects Here’s how to apply reverb to the sound of each group. 1 Press the [1-8] or [9-16] button to select the layer whose reverb you want to adjust. 2 Press the [REVERB] button. The [REVERB] button will light, and reverb will turn on. * Reverb will turn off if you press the [REVERB] button once again.
29 Headphones Output and Line Out Adjustments Here’s how to adjust the output level of the sound being monitored through headphones. 1 Turn the PHONES [VOLUME] knob to adjust the headphone output level. 2 Turn the rear panel [ATT] knob to obtain the most suitable output level.
30 Using the Memory Functions The current mixer settings are held in “current memory.” Current memory contains the following settings. • Source level/pan settings • Source assignment settings .
Using the Memory Functions 31 Here’s how to recall mixer settings into current memory. * You cannot execute this operation if the [RECALL] button has been disabled in the preference settings (p. 22). 1 Press the [RECALL] button. The [RECALL] button will light, and Recall mode will be on.
32 Appendices Main Specifications * 0dBu: 0.775Vrms * In the interest of product improvement, the specifications and/or appearance of this unit are subject to change without prior notice. * The M-48’s specifications were measured in connection with below mentioned devices.
33 Block Diagram L/R LINE OUT 1 PHONES OUT 2 MAIN L MAIN R PHONES L PHONES R AUX L AUX R REC METER (Control from M-400 / PC) GAIN REDUCTION MONO MUTE LOW P ASS LINE OUT AMBIENT MIC A/D A/D AUX IN D/A .
34 Troubleshooting Symptom Cause No sound. ● The M-48’s output has been muted by an operation from the M-400 or computer. To cancel the mute using the M-48, press any of the top panel buttons. ● The REAC connection has not been established (p. 20).
This product complies with the requirements of EMC Directive 2004/108/EC. For EU Countries For Canada This Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations. Cet appareil numérique de la classe B respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.
*5100005228-01* Information When you need repair service, call your nearest Roland Service Center or authorized Roland distributor in your country as shown below. As of Jan. 1, 2009 (RSS) ASIA INDONESIA PT. Citra IntiRama JL. Cideng Timur No. 15J-15O Jakarta Pusat INDONESIA TEL: (021) 632-4170 CHINA Roland Shanghai Electronics Co.
Un point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:
Si vous n'avez pas encore acheté Roland M-48 c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du Roland M-48 - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation Roland M-48, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le Roland M-48 va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le Roland M-48, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du Roland M-48.
Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le Roland M-48. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei Roland M-48 ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.
