Instruction/ maintenance manual of the product SCM800 Shure
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3 DESCRIPTION Th e Shure Model SCM800 is a full-featured, eight-channel mi- crophone mixer for sound reinforcement, general audio re- cording, and audio-visual systems. Any low-impedance, bal- anced dynamic or condenser microphone, including a wire- le ss microphone system, can be used with the SCM800 mixer .
4 4 SCM800 REAR P ANEL INSERT + AUX IN INSERT IN LINK MIC/PHM/LINE LINK 1 2 3 4 5 6 SWITC H (SWITCH) AUX/INS/INS LINE OUTPUT OUT Ć + 7 8 120VAC 50/60 Hz 200mA 18 13 Ć + Ć + Ć Ć + Ć + Ć + + MIC/.
5 SYSTEM SETUP RACK MOUNTING THE SCM800/E T o mount an SCM800 or SCM800E in a standard 483 mm (19-inch) audio equipment rack so that the front panel faces ou t, as shown in Figure 4. Then secure secure the mixer to the rack with the four supplied Phillips head screws.
6 6 LINKING MUL TIPLE SCM800 MIXERS Up to four SCM800 mixers can be “linked” using the supplied link cables If additional inputs are needed. Such a configura- tion can provide 32 mic inputs.
7 BASIC MIXER OPERA TION 1. T urn on the Power switch. 2. Adjust each channel level so that its Overload LED flick- ers only during very loud speech or noise. 3. T urn 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.
8 8 SPECIFICA TIONS Measurement Conditions (unless otherwise specified): Line voltage 120 V ac, 60 Hz (SCM800) or 230 V ac, 50 Hz (SCM800E); full gain; 1 kHz.
9 INTERNAL MODIFICA TIONS W ARNING: All modifications must be performed by quali- fie d service technicians. V oltages in this equipment are haz - ardous to life.
10 10 INSERTING A 15 dB MICROPHONE PREAMPLIFIER P A D Each channel’s microphone preamplifier gain can be reduced by 15 dB. This may be desirable with extremely high-output mi- crophones. Procedure: T o pad the gain of the MIC position 1. Remove surface mount resistor R1023.
11 REMOTE VOLUME CONTROL OF CHANNELS The channel, aux, or master levels can be controlled remotely b y a dc voltage via an external VCA (V o lta ge Controlled Ampli- fi er ). An example of an external VCA is the ST -VCA1 from Ra- dio Design Labs (1–800–281–2683 or www .
SHURE Incorporated http://ww w.shure.com United States, Canada, Latin America, Caribbean: 5800 W. Touhy Avenue, Niles, IL 60714-4608, U.S.A. Phone: 847-600-2000 U.
An important point after buying a device Shure SCM800 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Shure SCM800 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Shure SCM800 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Shure SCM800 you will learn all the available features of the product, as well as information on its operation. The information that you get Shure SCM800 will certainly help you make a decision on the purchase.
If you already are a holder of Shure SCM800, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Shure SCM800.
However, one of the most important roles played by the user manual is to help in solving problems with Shure SCM800. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Shure SCM800 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
