SCM410. Multiple SCM410 mixers can The SCM410 operates on 100-120 Vac power and the SCM410E be linked to other SCM410 mixers, as well as to Shure Models FP410, operates on 220-240 Vac power. Each mixer is supplied with a power SCM810, and SCM800, mixers.
100-120 Vac (SCM410) or 220-240 Vac equipment, such as a tape recorder, VCR, or video camera. (SCM410E) power source. Can be internally modified.Refer Not affected by MIC/LINE switch. to the “Internal Modification” section. NOTE: There is no MIC/LINE XLR OUTPUT Connector: Can be set for micro- power On/Off switch on this mixer.
19-inch audio equipment rack. The hardware can also be used to 1. Place the two mixers side-by-side and connect them with two (2) rack mount other Shure products, including the SCM268, SCM262, straddle brackets. The brackets should straddle the recessed DFR11EQ, and the DP11EQ.
TABLE-TOP MOUNTING Adhere the four (4) supplied rubber feet to the bottom of the mixer at each corner. This will keep it from sliding and protect the table surface. ATTACHING RUBBER FEET FOR TABLE-TOP MOUNTING FIXED MOUNTING TOP MOUNT HANGING MOUNT Fasten the straddle brackets to the recessed edges of the chas- Note: The hardware provided is for attachment to wood.
(SCM410E) SHURE LINKING MULTIPLE MIXERS If more than four inputs are needed, multiple Shure SCM410, FP410, light dimmers. To minimize ground currents, make sure linked mixers are connected to the same AC power mains. or SCM810 mixers can be linked by connecting the LINK OUT of the first mixer to the LINK IN of the next mixer, and so on.
BASIC MIXER OPERATION 1. Adjust each channel level so that its Overload LED flickers only 3. Adjust the Master level control for the required output level, as during very loud speech or noise. indicated by the output peak meter. The SCM410 is now ready for 2.
SPECIFICATIONS Measurement Conditions (unless otherwise specified): Line voltage 120 Vac, 60 Hz (SCM410) or 230 Vac, 50 Hz (SCM410E); full gain; 1 kHz, one channel activated; source impedances: Mic 150 ; terminations: Line/Mic Aux 10 k Frequency Response (at 1 kHz, channel controls centered) Operating Voltage 50 Hz to 20 kHz 2 dB;...
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Replacement Parts Knob, Master (white) ............ 95A8238 Knob, Channel Gain (blue)........... 95B8238 Line (Power) Cord (SCM410)........95B8389 Line (Power) Cord (SCM410E) ........95B8778 Line (Power) Cord Australia/New Zeland (SCM410E/AZ)............. 95A9128 Link Cable ..............95A8889 Fuse, SCM410 (5 x 20 mm, T 125mA L, 250V, time delay) ....80AA730 Fuse, SCM410E (5 x 20 mm, T 50mA L, 250V, time lag)......
(Shure's AMS Update pub- lication contains additional applications of advanced logic. This publica- OVERRIDE IN 1 GATE OUT 1 tion is available by contacting the Shure Applications Department.) The OVERRIDE IN 2 GATE OUT 2 following logic functions are available for each channel:...
Figure 9). To avoid switching clicks in the audio output, do not ground the Shure Applications Department. power supply negative terminal in the audio system or rack ground. IMPORTANT: If a single cable is used for the microphone audio...
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INHIBITING GATING FOR UNWANTED SOUNDS An existing sound system using 24-volt relays can be used with the SCM410 without modification if the relay coil current draw is under 500 mA. MaxBus attempts to activate only one microphone per sound source. Muting a microphone channel prevents its audio from appearing at the D = 1N4148 mixer's output.
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INHIBIT FUNCTION EXTERNAL LOGIC DEVICES For information on the inhibit function, refer to the Internal SCM410 logic levels are directly compatible with TTL and 5V CMOS Modifications section. logic families. Mixer logic may be used with 15V CMOS logic if a pull-up resistor is used with each GATE output.
Replace the power cord with a cord rated for 220-240Vac operation. MODIFYING THE SCM410E FOR 100-120 VAC, 50/60 HZ OPERATION As supplied, the SCM410E uses 220-240 Vac, 50/60 Hz power. To modify Using a screwdriver, turn the center rotor to the 115 position.
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Short Short 470k LOCAL AUX OPERATION This modification removes the auxilliary audio from the SCM410 Procedure: outputs. Auxilliary audio originates from the aux inputs of the Shure Remove resistor R9187. SCM810, SCM800, and AMS8100 mixers when linked to the SCM410.
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MUTE IN PRECEDENCE TO OVERRIDE IN PRECEDENCE When both MUTE IN and OVERRIDE IN logic are grounded, the Procedure: Override mode will take precedence (as supplied, the MUTE IN takes Short jumper X1005. precedence over OVERRIDE IN). Remove resistor R1087. DEAD ZONE ON MUTE IN DEFEAT As supplied, MUTE IN is intended for use as a momentary cough Procedure:...
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SHORTING OVERRIDE IN TO LOGIC GROUND INTERNALLY This modification is equivalent to shorting one of the channel OVERRIDE Procedure: IN to the LOGIC GROUND pin via the high density DB-15 logic connector. Short jumper X1003. With this modification, a channel is always on. SHORTING MUTE IN TO LOGIC GROUND INTERNALLY This modification is equivalent to shorting a channel MUTE IN to the Procedure:...
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