Shure SCM410E manual

Model SCM410/SCM4 10E User Guide © 2009 Shure Incorporated 27D8690 (Rev . 10) Printed in U.S.A. SCM410/SCM410E FOUR CHANNEL AUTOMATIC MICROPHONE MIXER SCM410/SCM410E MÉLANGEUR AUTOMATIQU E À QUATRE CANAUX SCM410/SCM410E AUTOMATISCHER 4-KANAL -MIKROFON-MISCHER SCM410/SCM410E CONSOLA MEZCLADORA AUTOMATICA DE MICROFONOS DE CUATRO CANALES SCM410/SCM[...]

2 TABLE OF CONTENTS DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3 FEATURES - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3 OPERATING PR INCIPL[...]

3 DESCRIPTION The Shure Model SCM410/E is a four-cha nnel automatic microphone mixer for use i n sound reinforcement, audio recordi ng, and broadcast applications. The SCM410 dramatically improves audio q uality in any application wh ere multiple microphones are required. Any low-imped- ance dynamic or condenser microphon e (including wireless) can[...]

4 REAR PANEL  Power Connector: Unit is energized when the power cord i s plugged into a 100-120 V ac (SCM410) or 220-240 V ac (SCM410E) power s ource. NOTE: There is no power On/Of f switch on this mixe r.  DIP Switch: The 4-position DIP switch provides additional func- tions. Refer to the “DIP Switc h Functions”section.  Microphone Lo[...]

5 INSTALLATION SUPPLIED HARDWARE • 4 rubber feet • 1 rackmount bracket, long • 1 rackmount bracket, short • 2 straddle brackets • 10 bracket screws, 6 mm (1/4 in.) • 4 rackmount screws, 2.54 cm (1 in.) • 4 plastic washers • 4 wood screws, 1.25 cm (1/2 in.) RACK MOUNTING The SCM410 is supplied with hardware for mounting one or two un[...]

6 TABLE-TOP MOUNTING Adhere the fo ur (4) supplied rubber feet to the bottom of the mixer at each corner. This will keep it from sliding and protect the table surfac e. FIXED MOUNTING TOP MOUNT 1. Fasten the straddle bracket s to the recessed edges of the chas- sis, using four (4) br acket screws. 2. Fasten the straddle bracket s to the top of the [...]

7 SCM410 CONNECTIONS 1. Connect microphone signal sources to the Channel Input connec- tors. Use conventional 2-con ductor shielded audio cables. 2. If any condenser microphones are connected, set the +12V phantom power DIP switch to ON. 3. Connect the SCM410 Mic/Line Level Output to the input of mixers, EQs, amplifiers or recorders. 4. Connect the[...]

8 BASIC MIXER OPERATION 1. Adjust each channel level so that it s Overload LED flickers only during very loud speech or noi se. 2. Adjust t he Low-Cut and High-Frequency contro ls adjacent to each Input Gain control so th at the microphones sound similar . 3. Adjust the Master level control for the required output level, as indicated by the outp ut[...]

9 SPECIFICATIONS Measurement Condi tions (unless otherwise specifi ed): Line voltage 120 Vac, 60 Hz (SCM410) or 2 30 Vac, 50 Hz (SCM410E); full gai n; 1 kHz, one channel activat ed; source impedances: Mic 150 Ω ; terminati ons: Line/Mic Aux 10 k Ω Frequency Response (at 1 kHz, channel controls centered) 50 Hz to 2 0 kHz ± 2 dB; –3 dB corner at[...]

10 ADVANCED FUNCTIONS LOGIC CONNECTION SPECIFICATIONS The SCM410 logic f unctions expand the range of installation and con- trol options. Logic can be used for everything from simple cough switches to elaborate comp uter-controlled room systems. (Shu re's AM S Update publication co ntains additi onal applicati ons of advanced logic. This publ [...]

11 SUGGESTED LOGIC APPLICATIONS This section contain s suggestions o n the uses of the SCM410's log ic capabilities. Note that us es of these functions are not limited to the listed applications . The user is limite d only by imagina tion and creat ivity. For ad- ditional suggestio n s and solutions to ins tallation problems, contact the Shure[...]

12 INHIBITING GATING FOR UNWANTED SOUNDS MaxBus attempts to activate o nly one microphone per sound source. Muting a microphone channel prevents its audio from appearing at the mixer's output. However, the muted m icrophone still communicates w ith other mic channels via MaxBus. A sound source picked up by a muted mi- crophone will not activat[...]

13 INHIBIT FUNCTION For information on th e inhibit function, refer to the Internal Modi fica- tions section. REMOTE VOLUME CONTROL The level of the Aux or Master output can be controlled from an exter- nal VCA (Volta ge Controlled A mplifier) such as th e RU-VCA1 fr om Radio Design Labs (Tel. 1-80 0-281-2683, or www.rdlnet.com). To connect a VCA t[...]

14 INTERNAL MODIFICATIONS • Only make changes to jumpers (X) and resistors (R). The circuit board contains holes where resistors ar e to be added. • For Channel modifications, the first c haracter of the reference desig- nator indicates the channel number,(i.e., R1027 refers to a Channel 1 resistor, X2001 refers to a Channel 2 jumper, etc.). Mo[...]

15 CHANGING THE LIMITER THRESHOLD T o change the limiter threshold fro m the preset value of +16 dBu, modify the c ircuitry according to the following table. CHANGING HOLD TIME To change the ho ld time from th e preset value o f 0.4 seconds, modif y the circuitry according to the following table . LOCAL AUX OPERATION This modification removes the a[...]

16 CHANGING OVERRIDE IN TO MUTE IN (FILIBU STER MODE) This modification should only be performed with the Change MUTE IN to Inhibit modification described above. This is only necessary if the Mute function is desired a long with Filibuster Mode. Procedure: 1. Short jumper X1006. 2. Remove resistors R1087 and R1082. CHANGING THE OFF-ATTENUATION LEVE[...]

www .shure.com United States: Shure Incorporated 5800 West T ouhy A venue Niles, IL 60714-4608 USA Phone: 847-600-2000 Fax: 847-600-1212 Email: info@shure.com ©2008 Shure Incorporated Europe, Middle East, Africa: Shure Europe GmbH Wannenäckestr . 28, 74078 Heilbronn, Germany Phone: 49-7131-72140 Fax: 49-7131-721414 Email: info@shure.de Asia, Paci[...]