Yamaha MG12 Owner's Manual - Page 21

Rear Input/Output Section B6 7 8 9 0 3 Front & Rear Panels 2 C 54 A 1 1 Channel Input Jacks • MIC jacks (CHs 1 to 4, 5/6, 7/8) These are balanced XLR-type microphone input jacks (1:Ground; 2:Hot; 3:Cold). • LINE jacks (CHs 1 to 4) These are balanced TRS phone-type line input jacks (T:Hot; R:Cold; S:Ground). You can connect either balanced or unbalanced phone plugs to these jacks. NOTE Where an input channel provides both a MIC INPUT jack and a LINE INPUT jack, you may use either one of these jacks but you may not use both at the same time. Please connect to only one of these jacks on each channel. 2 INSERT I/O Jacks Each of these jacks is positioned between the equalizer and fader of the corresponding input channel (CHs 1 to 4). These jacks can be used to independently connect these channels to devices such as graphic equalizers, compressors, and noise filters. These are TRS (tip, ring, sleeve) phone jacks that support bidirectional operation. NOTE Connection to an INSERT I/O jack requires a special separately-sold insertion cable such as illustrated below. To the input jack of the external processor 3 Channel Input Jacks These are unbalanced stereo line input jacks. Two jack types are provided: phone type (CHs 5/6 to 11/12) and RCA pin type (CHs 9/10, 11/12). NOTE Where a channel provides both a phone jack and an RCA pin jack, you may use either one of these jacks but you may not use both at the same time. Please connect to only of these jacks on each channel. 4 GROUP OUT (1, 2) Jacks These are impedance-balanced phone-type output jacks that output the Group 1-2 signals. Use these jacks to connect to the input jacks of an MTR, external mixer, or other such device. 5 ST OUT (L, R) Jacks These jacks deliver stereo output of the mixed signal. You use these jacks, for example, to connect to the power amplifier driving your main speakers. You also use these jacks when you wish to record the signal utilizing the level control applied by the ST fader in the Master Control section. • XLR jacks XLR-type balanced output jacks. • LINE jacks TRS phone-type balanced output jacks. To the INSERT I/O jack Sleeve Tip 6 C-R OUT Jacks Use these stereo phone-type output jacks to connect to your monitor system. Sleeve Ring Tip To the output jack of the external processor The signal output from the INSERT I/O jacks is reverse-phased. This will not be a problem if connecting the jack to an effector. If using the jack to output to an external device, however, please be aware of possible phase conflicts with other signals. NOTE The signal monitored by these jacks is selected by the settings of the ST-GROUP toggle switch, the 2TR IN switch, and the PFL switches on the input channels. MG12/4FX 21