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Model M367 User Guide
SIX CHANNEL MICROPHONE MIXER
DESCRIPTION ADDITIONAL FEATURES
The Shure M367 is a portable, six–input, two-output (mono),
• 48 Vdc or 12 V phantom power for condenser microphones
battery-powered microphone and line level mixer/preamplifier. Its
• 1 kHz tone oscillator
transformer–isolated design, low-noise performance, and compact
• Mutes all input channels when activated
and rugged construction make the M367 an ideal choice for studio
• Tone level control is on the mast
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FRONT PANEL CONTROLS AND INDICATORS ÑÑ ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ Ñ ÑÑ ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ Ñ ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ Ñ Ñ Ñ Ñ Ñ ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ ÑÑÑ ÑÑÑÑÑÑ ÑÑÑÑÑÑ ÑÑÑÑÑ ÑÑÑÑÑÑÑÑÑÑÑÑÑ ÑÑÑ ÑÑÑÑÑÑÑÑÑ ÑÑÑ ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ ÑÑÑ ÑÑÑÑÑ ÑÑÑ ÑÑÑ ÑÑÑÑÑ ÑÑÑ ÑÑÑ ÑÑÑ ÑÑÑÑ Ñ ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ ÑÑÑÑÑÑÑÑÑ ÑÑÑ Ñ Ñ ÑÑ ! Ñ ÑÑÑ
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REAR PANEL CONNECTORS AND CONTROLS REAR PANEL CONNECTORS AND CONTROLS FIGURE 2 1. Mic/Line Level Output Switch: Sets output to microphone or BALANCED line level. 2. Phantom Power Switch: Adds 12-volt phantom power to all inputs set to MIC. Use DIP switch 7 to increase voltage to 48 volts (see DIP Switches). TO M367 #1 TO M367 #2 UNBALANCED 3. Mic/Line Level Input Switches 1-6: Sets input to microphone or line level. Phantom power is disabled for inputs set to LINE. 4. M267/M367 Mix Bus Leve
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SETTING LEVELS AC OPERATION 1. Set the MASTER gain knob to the full off position. Use the supplied power adapter to connect the M367 to a power outlet. 2. Activate the 1 khz tone oscillator by setting the 1 KHZ TONE M367: 100-120 VAC, 50/60 Hz switch to ON. Adjust the MASTER gain until the VU meter M367E: 220-240 VAC, 50/60 Hz needle indicates "0". Adjust the input levels on the equipment The operating voltage can be switched internally (see Internal connected to the M367 outputs accordingl
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SPECIFICATIONS Frequency Response Polarity 20 to 20,000 Hz 2.0 dB (channel controls centered) Mic/Line In to Mic/Line Out Non-Inverting Total Harmonic Distortion 0.25% THD at +4 dBm output, 55 to 20,000 Hz Mic/Line In to Phones Non-Inverting Voltage Gain Mic/Line In to Mix Bus (tip) Inverting Output Monitor to Phones Non-Inverting Mix Bus Mix Bus to Mic/Line Out Inverting Input Line Mic Phones Mix (M367) Bus Overload and Shorting (M267) Shorted outputs, even for prolonged periods, cause no
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REPLACEMENT PARTS GENERAL INFORMATION Foot Kit (4 in kit)........................................................... 90S8100 Changes or modifications not expressly approved by Shure, Inc. M367 Fuse, 0.125 A, 250 V ........................................... 80E380 could void your authority to operate this equipment. M367E Fuse, 0.063 A, 250 V.........................................80G380 This equipment has been tested and found to comply with the limits for a Class B digital device pursuant t
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INTERNAL ADJUSTMENTS 4. Adjust the 1 kHz tone oscillator level with the Master gain con- trol until the ac voltmeter reading is at the level desired NOTE 5. With the M367 top cover removed, adjust the VU Level Cali- Only qualified service technicians should perform these modifications. bration trim pot R684 with a screwdriver until the VU Meter reads 0. 6. For 0 VU settings between +4 and +8 dBm, set internal DIP These internal adjustments require only removal of the top switch S701 position
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INTERNAL MODIFIABLE FUNCTIONS Pad Channel Pad Channel NOTE X421 1 X451 4 Only qualified service technicians should perform these modifications. X431 2 X521 5 X441 3 X531 6 Perform all modifications through solder points accessible on 2. Locate the following empty pads: the main PC board. Find all pads near ribbon cable assemblies W811, W812 and W813. DISASSEMBLING THE M367 3. Solder a new capacitor through the holes of the empty pads 1. Remove the mixer top cover as previously described. fo
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ADAPTING LINE OUT TO DUAL BANANA JACK CHANGING MONITOR IN HIGH GAIN (DIP Switch S701 Position 5 Down) Add a dual banana jack, balanced, line-level output capability by purchasing a commercial unit (Sescom XLR F-3BP or equivalent), Locate resistor R647 (near Phones potentiometer R648) and re- or obtaining a female XLR connector (Radio Shack 274-011 or move it. Locate empty pads X647 (near R647). Solder a 330 ,1/4 W equivalent), a dual banana jack (ITT 2269 or equivalent), a small resistor i
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CHANGING LIMITER RELEASE TIME TO ONE SECOND 6. Calculate resistor R6 value as follows: Remove resistor R741 (about 15 mm behind ribbon cable assembly W813). 1 R6 = 1 1 – CHANGING LIMITER THRESHOLD PRESETS R3 R1 1. Select the equivalent resistor values for the desired limiter Select a 1/4 W, 1% resistor closest in value to R6 and solder it thresholds from the following table. Then fill in the following work sheet with the resistor selections. to the holes of X734. 7. Calculate resistor R7 valu
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SHURE Incorporated Web Address: http://www.shure.com 5800 W. Touhy Avenue, Niles, IL 60714-4608, U.S.A. In U.S.A., Phone: 1-847-600-2000 Fax: 1-847-600-1212 In Europe, Phone: 49-7131-72140 Fax: 49-7131-721414 In Asia, Phone: 1-852-2893-4290 Fax: 1-852-2893-4055 International, Phone: 1-847-600-2000 Fax: 1-847-600-6446
