Mt120 controls and their functions – Yamaha MT120 User Manual

Page 8

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[Note] The terms “channel” and “track”: In this owner’s manual, the term “channel” refers to the circuitry and

controls required to process one input source. MT120’s mixer section has four “channels.” The term “track”

refers to the magnetic bands on tape used to store signals recorded by MT120’s recorder section. Since
MT120 records four separate bands of audio on tape, it is a four-“track” recorder.


The INPUT SELECT switches are used to select the

input source for each of the four channels.

TAPE: Select this position to play back already re-

corded material. When selected, mixer channel 1
will receive playback from track 1; channels 2, 3,
& 4 will receive tracks 2, 3, & 4 respectively.

OFF: In this position, the channel receives no input


MIC/LINE: In this position, the channel can receive a

microphone, keyboard, or other line-level signal

which is connected to the input jack.

[Note] All channels which are not in use should be set

to “OFF” position.

MIC/LINE Gain Controls

The gain controls adjust the sensitivity of the channel
inputs to accept a wide range of signal levels — from

line to microphone. The gain controls are used in con-

junction for the input faders to set the optimum record-

ing level with a wide range of sources (see “SETTING
RECORDING LEVELS” on page 15).

[Note] A gain control only affects the level of the signal

connected to the input jack.

Input Faders

The input faders are used to adjust the level (volume)
of the corresponding mixer channel’s signal, whether it
comes from a source plugged into an input jack or from
the MT120’s recorder section. (The INPUT SELECT
switches are used to choose between the two.) The
faders are used to set up the optimum levels when

recording, and to balance (mix) the sound from the
recorder’s tracks when playing back a recording.
Noise and distortion are at their lowest at input fader
level “7”.


The REC SELECT switches are used when recording
to assign (send) the signal from each mixer channel

either directly to the corresponding track of the re-
corder or to a different track via the PAN controls (see

[Note] When any of the REC SELECT switches are set

to a position other than OFF, the red indicator

LED of the transport REC/PAUSE button will flash,
indicating that the MT120 is set up to record.
Recording will commence when the PLAY button
is pressed after pressing the REC/PAUSE but-

ton. If all REC SELECT switches are set to OFF,
the unit will not record even if the REC/PAUSE

and PLAY buttons are pressed.

PAN Controls

The PAN controls assign the signal from the corre-

sponding mixer channel to any desired position in the
“stereo sound field”. If a PAN control is set to the

maximum “LEFT” position, the signal from, that channel

will appear only at the left-channel MT120 output (STEREO
OUT L). If the PAN control is set fully RIGHT, the
signal will appear only at the STEREO OUT R output
jack. If a PAN control is set to its center position, then
the signal from that channel will appear equally at both
the left- and right-channel outputs, and the sound will

appear to come from the center of the stereo sound

field, a point midway between the two stereo speakers.
By varying the level of the signal sent to the left-and
right-channel outputs, the PAN control can be used to

position the sound at any point in the stereo spectrum.
The PAN controls can also be used during recording to
assign the signal from several channels to a single
track of the recorder section, or to assign a channel to
a differently-numbered recorder track (see “CHANNEL-