Doing so with the volume control turned up, could result in hurting your ears. * Switch off power to the mixer when interconnecting it to external equipment. Always be sure to switch off the MN12 power when interconnecting external equipment to the MN12. Plug the AC adaptor cable into the MN12 DC IN jack and plug the AC adaptor into the wall outlet. Unplug the AC adaptor from the wall outlet if the MN12 is not to be used for long hours or extensive periods of time. The schematic is indicates that the outer sheath is minus polarity, and the power supply is DC 12V. DC IN 12V Names and Functions 1.DC IN jack The AC adaptor included with the MN12 is connected here. 2.Power switch Switches ON-OFF (STANDBY) power to this mixer. 3.AUX RTN jacks This is connected to the effector output and the effector processed signals sent to the stereo L, R connectors. Input signals are adjusted with the AUX RTN knob. If the effector output is stereo, they are respectively connected to L and R, and if output in mono, it is input to L/MONO. 4.AUX SEND jack This is connected to the effector input and the signals for effecting are controlled with the AUX SEND knobs on their respective channels and then output. 12. INPUT jacks External sound sources are input here. INPUT 1~4 complies to mic/line and levels controlled with the TRIM knobs to match the input. INPUT 5~12 are exclusively for line level inputs and are in stereo. If monaural sound sources are to be input, they should be connected to the MONO marked 5, 7, 9 and 11 jacks, and for stereo, to the 5-6, 7-8, 9-10 and 11-12 jacks. 13. AUX send knobs The AUX send knobs determine the level of the input signal that will be sent to AUX SEND jacks. The signal adjusted by these knobs can be sent to an external device, such as an effect unit. 12 14. Panpot knobs Adjusts the sound position when signals input to each input jack is output to the STEREO OUT (L, R) jacks. 15. Input trim knobs These are adjusted to match the output level of the sound sources connected to INPUT 1~4 (adjusting range is -60dBV~-10dBV). If the PEAK LED blinks, the levels with this knob. 16. Equalizer control knobs These knobs control the low frequency range (100Hz, +/-13dB) and high frequency range (10kHz, +/-13dB) of the input signals of INPUT 1~4 jacks. 345 5.STEREO OUT jacks POWER LED The mixed signals is output to inputs of the MTR and Mixer. The output level is controlled with the MASTER fader. 6.LED level meter Signals levels from the STEREO OUT jacks are indicated by these LED'S. 7.AUX RTN knob Signals effect processed are adjusted by this knob and sent to stereo L and R. 8.PHONES knob Adjusts sound of the headphones. 9.MASTER fader This fader controls the signal that is output from STEREO OUT L, R jacks. PHONES 10 5 0 AUX RL PAN/ BAL 10 5 0 AUX RL PAN/ BAL 10 5 0 AUX RL PAN/ BAL 0 +- EQ HI + 0 - EQ LO 10 R MIC 5 0 L LINE AUX PAN TRIM 0 +- EQ HI + 0 - EQ LO 10 R MIC 5 0 L LINE AUX PAN TRIM 0 +- EQ HI + 0 - EQ LO 10 R MIC 5 0 L LINE AUX PAN TRIM 0 +- EQ HI + 0 - EQ LO 10 R MIC 5 0 L LINE AUX PAN TRIM POWER PEAK 1 2 3 4 PEAK PEAK PEAK 10 5 0 AUX RL PAN/ BAL 0 5 10 0 5 10 0000 5555 10101010 0 5 10 0 5 10 0 5 1010 10 10 5 5 5 0 0 0 10 5 0 5/MONO 6 MASTER 10 5 0 10 5 0 AUX RTN 7/MONO 8 9/MONO 10 11/MONO 12 MN12 L R + - 10 5 0 3 6 DC IN 12V -+ STAND BY ON L/MONO AUX RTN R AUX SEND L R STEREO OUT 6 7 8 9 13 11 14 15 16 PEAK LED 12 10. PHONES jack Monitor headphone is plugged in here. 11. INPUT fader Adjusts input level of the sound source signal applied to input jack 1-12. 10 Connecting the External Equipment Connecting the External Equipment Multitracker MN12 As shown in example below, by interconnecting MN12 as a sub mixer with a multitracker having few input ports, a multiple of sound sources can then be mixed and recorded by the multitracker. Effect Unit O6mm phone plugs, shown above, must be used at the input/output jacks (except for the headphones) of MN12. If the effector output is monaural, connect to L/MONO of the AUX RTN jack. Sound source 10 Stereo Outputs are used as examples, in the above, for sound sources 5 and 7. Mics should be connected to channels 1~4. PHONES 10 5 0 AUX RL PAN/ BAL 10 5 0 AUX RL PA N/ BAL 10 5 0 AUX RL PA N/ BAL 0 +- EQ HI + 0 - EQ LO 10 R MIC 5 0 L LINE AUX PAN TRIM 0 +- EQ HI + 0 - EQ LO 10 R MIC 5 0 L LINE AUX PAN TRIM 0 +- EQ HI + 0 - EQ LO 10 R MIC 5 0 L LINE AUX PAN TRIM 0 +- EQ HI + 0 - EQ LO 10 R MIC 5 0 L LINE AUX PAN TRIM POWER PEAK 1 2 3 4 PEAK PEAK PEAK 10 5 0 AUX RL PAN/ BAL 0 5 10 0 5 10 0000 5555 10101010 0 5 10 0 5 10 0 5 1010 10 10 5 5 5 0 0 0 10 5 0 5/MONO 6 MASTER 10 5 0 10 5 0 AUX RTN 7/MONO 8 9/MONO 10 11/MONO 12 MN12 L R + - 10 5 0 3 6 DC IN 12V -+ STAND BY ON L/MONO AUX RTN R AUX SEND L R STEREO OUT Sound source 9 Sound source 1 Sound source 2 Sound source 3 Sound source 4 Sound source 5 Sound source 6 Sound source 7 Sound source 8 Block Diagram EQ INPUT AUX PAN MASTER PHONES LEVEL METER L R PHONES TRIM INPUT 2 INPUT 3 INPUT 4 INPUT 1 INPUT 5/MONO -...
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