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DESCRIPTION switchable 48 V phantom power, and a insert jack. The SCM800 operates on 120 Vac power; the SCM800E oper- ates 230 Vac power. Both models are supplied with rack- mounting hardware, link cable and removable block terminal connectors. An accessory rack panel adapter (Model...
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120 Vac. Can be internally changed to 230 V opera- tion (see Voltage Selection). SCM800E: 230 VAC Power Connector and Rocker Switch: Switch turns unit on when power cord is plugged into 230 Vac. Can be internally changed to 120 V opera- tion (see Voltage Selection).
RACK MOUNTING THE SCM800/E To mount an SCM800 or SCM800E in a standard 483 mm (19-inch) audio equipment rack so that the front panel faces out, as shown in Figure 4. Then secure secure the mixer to the rack with the four supplied Phillips head screws.
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See Figure 8. ADDITIONAL LINK CABLES Additional 381 mm (15 in.) link cables are available as Shure Part No. 95A8889. Longer cables in a variety of lengths are available from Apple Computer as computer printer connec- tions;...
1. Turn on the Power switch. Adjust each channel level so that its Overload LED flick- ers only during very loud speech or noise. 3. Turn unused channel controls full counterclockwise. 4. Adjust the Low-Cut and High-Frequency controls adja- cent to each Input Gain control until all microphones sound alike.
SCM800: 120 Vac rated nominal (see Voltage Selection Clipping Level for 230 Vac operation), 50/60 Hz, 200 mA -15 dBV SCM800E: 230 Vac rated nominal (see Voltage Selection for 120 Vac operation), 50/60 Hz, 100 mA +22 dBV Temperature Range...
MODIFYING THE SCM800E FOR 100–120 VAC, 50/60 HZ OPERATION The SCM800E can be internally modified to operate on 120 Vac, 50/60 Hz power. NOTE: The supplied cord uses Harmonized IEC Cordage with the following color coding: Brown = Line, Blue = Neutral, Green/Yellow = Ground.
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INSERTING A 15 dB MICROPHONE PREAMPLIFIER PAD Each channel’s microphone preamplifier gain can be reduced by 15 dB. This may be desirable with extremely high-output mi- crophones. LINE-LEVEL OUTPUT TO MIC-LEVEL OUTPUT DISABLE MASTER LEVEL CONTROL The Master gain control can be disabled so it cannot be tam- pered with.
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REMOTE VOLUME CONTROL OF CHANNELS The channel, aux, or master levels can be controlled remotely by a dc voltage via an external VCA (Voltage Controlled Ampli- fier). An example of an external VCA is the ST-VCA1 from Ra- dio Design Labs (1–800–281–2683 or www.rdlnet.com). Procedure: For channel control: 1.
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United States, Canada, Latin America, Caribbean: 5800 W. Touhy Avenue, Niles, IL 60714-4608, U.S.A. Phone: 847-600-2000 U.S. Fax: 847-600-1212 Intl Fax: 847-600-6446 Europe, Middle East, Africa: Shure Europe GmbH, Phone: 49-7131-72140 Fax: 49-7131-721414 Asia, Pacific: Shure Asia Limited, Phone: 852-2893-4290 Fax: 852-2893-4055...