User manual SOUNDCRAFT SM12 1994

[. . . ] 1994 All rights reserved Parts of the design of this product may be protected by worldwide patents. Part No. ZM0075-01 Information in this manual is subject to change without notice and does not represent a commitment on the part of the vendor. 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 Ltd. [. . . ] This feature allows subgroups to be created, if the console is used in a FOH application. 9 The CUT switch mutes the signal to the group output and stereo mix bus (if selected). The switch has an integral red LED which indicates when the signal is cut. 24 Group Output Module Talkback 10 The momentary TB switch feeds the signal from the TALKBACK MICROPHONE to the group output; it is independent of the Fader position and the CUT switch. The existing group output is dimmed by 6db, and the engineer's wedge speaker is dimmed by 20dB while the TB switch is active. Talkback may also be routed to all the group buses simultaneously by the INT talkback function on the master module; in this case the group CUT and fader will affect the talkback level. Metering 11 The group output level is metered by an integral peak-reading 16-segment LED bargraph which is situated next to the Fader; the meter is calibrated for 0 at +4dBu output. An internal jumper allows the meter response to be set to average-reading instead of peak-reading. Solo 12 The electronically latching AFL switch, which has an integral amber LED, feeds the post-fade, post-insert group signal to the engineer's wedge speakers and phones output; however, if INPUT PRIORITY (see the Master Module) is enabled then any active input PFLs will replace the AFL signal, and the group will not be heard until the inputs are un-PFLed. If solo AUTO CANCEL (see the Master Module) is selected, then the AFL will cancel any other active PFLs or AFLs. The AFL may also be cleared with the Master Module's SOLO CLEAR function. 13 The PRE INSERT switch moves the AFL signal before the insert point. 14 The AFL TRIM control gives +/-10dB of level adjustment. Jumper Options Function Options Default Lower group bus programming * J101 - J106 Group 1 - 6 According to Module Position Upper group bus programming * J201 - J206 Group 7 - 12 According to Module Position Lower Meter Response J109 Peak or Average Peak Upper Meter Response J209 Peak or Average Peak * only to be changed if the module is moved to a different position within the group section. Group Output Module 25 Input and Output Levels Insert Sends, Group Outputs (electronically balanced) Nominal level Maximum output level Output impedance +4dBu +26dBu into 600 <75 Insert Returns, External Inputs (electronically balanced) Sensitivity Maximum i/p level Input impedance +4dBu +26dBu >10K balanced Rear Connectors External Inputs (1/4" 3pole Jack) Tip Ring Sleeve Signal (Hot) Signal (Cold) Ground Insert Return (1/4" 3pole Jack) Tip Ring Sleeve Signal (Hot) Signal (Cold) Ground Insert Send, (1/4" 3pole Jack) Tip Ring Sleeve Signal (Hot) Signal (Cold) Ground Group Outputs, (3 pin male XLR) Pin 1 Pin 2 Pin 3 Ground Signal (Hot) Signal (Cold) 26 Group Output Module Master Module Master Module 27 0DVWHU0RGXOH 34 The master module contains the stereo mix or sidefill output, the operator's headphones and wedge speaker outputs, a noise or sine wave test oscillator, the solo mode controls and master solo clear function, and internal/external talkback functions. PSU Status Indicators 1 7 2 8 9 10 29 15 12 17 16 18 30 31 32 33 1 The two PSU Status Indicator LEDs (red) show that the +/-17V and +48V PSU rails are working. Talkback The talkback system allows communication by the operator to the group and mix outputs, and to and from the front of house (FOH) console. 2 The TALKBACK MIC XLR accepts a local talkback microphone or gooseneck. 3 The TALKBACK LEVEL control adjusts the sensitivity of the talkback mic input. The sensitivity of the mic input is variable between -20dBu and -50dBu. 3 11 4 5 6 25 14 13 26 27 28 4 The TALKBACK TO BUSSES EXT button sends the T/BACK IN signal to the group and mix buses when FOH talkback is active to allow the front-of-house engineer to talk to the performers via the monitor outputs. 5 The TALKBACK/OSC TO BUSSES INT button routes the talkback signal from the mic to all group busses and the stereo mix bus simultaneously. The oscillator is also routed via this switch if it is turned `on'. 6 The momentary action FOH button initiates talkback to the front of house console using a Soundcraft proprietary system. The talkback mic signal is switched to the FOH OUT XLR, with a +15v DC common-mode voltage to signal the FOH console that talkback is occurring. The signal present on the FOH IN XLR is fed to the 'phones, dimming the existing signal by 15dB. An internal jumper disables the common-mode DC voltage, to allow use with non-Soundcraft desks. If a 15v common-mode voltage is detected on the FOH IN XLR, indicating talkback from the front-of-house console, then the FOH IN signal is switched to the 'phones output, dimming the existing signal by 15dB, and dimming wedge output by 20dB. may be routed to the group or mix outputs individually by pressing the TB button on each output; this also dims the wedge output by 20dB. 20 21 22 19 24 23 28 Master Module External Input 7 The MONO switch sums the external signal to mono before it is fed to the stereo mix. 8 A stereo external input, from XLRs on the rear connector panel, may be added to the mix buses. The EXT IN control adjusts the level of the external signals, with 10dB of gain fully clockwise. 10 The momentary LSTN (listen) switch provides a mono pre-fade, pre-ON solo to the 'phones or wedge output. LISTEN is not affected by the AUTO CANCEL or SOLO CLEAR functions, and overrides any output AFLs if INPUT PRIORITY is active. Pressing LSTN does not cancel other solos. Stereo Mix The stereo mix path is similar in function to the group outputs, but provides a stereo output. 11 The 100mm stereo mix FADER controls the level of the signal from the summing amplifiers. This stereo signal is fed to the left and right insert sends and ultimately to the left and right outputs, with 10dB of gain at the maximum. Insert Point The inserts are postfade, using electronically balanced sends and returns at a nominal level of +4dBu. The insert SENDs and RETURNs are on separate 1/4" jacks on the rear connector panel. 12 Both left and right inserts may be bypassed using the INSERT OUT switch. [. . . ] Dealer means the person other than Soundcraft (if any) from whom the End User purchased the Equipment, provided such a person is authorised for this purpose by Soundcraft or its accredited Distributor. 2 If within the period of twelve months from the date of delivery of the Equipment to the End User it shall prove defective by reason only of faulty materials and/or workmanship to such an extent that the effectiveness and/or usability thereof is materially affected the Equipment or the defective component should be returned to the Dealer or to Soundcraft and subject to the following conditions the Dealer or Soundcraft will repair or replace the defective components. Any Equipment or component returned will be at the risk of the End User whilst in transit (both to and from the Dealer or Soundcraft) and postage must be prepaid. This warranty shall only be available if: a) the Equipment has been properly installed in accordance with instructions contained in Soundcraft's manual; and b) the End User has notified Soundcraft or the Dealer within 14 days of the defect appearing; and c) no persons other than authorised representatives of Soundcraft or the Dealer have effected any replacement of parts maintenance adjustments or repairs to the Equipment; and d) the End User has used the Equipment only for such purposes as Soundcraft recommends, with only such operating supplies as meet Soundcraft's specifications and otherwise in all respects in accordance Soundcraft's recommendations. [. . . ]