744T User Guide and Technical Information

Front Panel Descriptions

All settings of the 744T can be accessed and monitored through the front panel LCD and navigation keys. This allows the unit to be placed in a production bag along with field mixers and wireless transmitters and receivers.

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1)Digital Input LEDs

Indicates the presence of digital signal on the respective input. When flashing, indicates that digital input is selected but no valid digital clock signal is pres- ent.

2)Input 1 Gain

Controls the analog gain (input trim) of the channel 1 input. Normal mic input range is from 25 dB to 70 dB, low gain mic range is from 10 dB to 55 dB, line input range is from −6 dB to 18 dB. For line-level inputs, this control can be defeated and gain can be setup menu- controlled. If the LCD display shows “locked” when the pot is turned, gain control of the line-level input is menu- controlled. When inputs are linked as a stereo pair input gain 1 controls the gain of both inputs.

3)Input 2 Gain

Controls input 2, as in #2 above. When inputs are linked as a stereo pair input controls left-to-right balance.

4)MENU Key

Used to access all 744T setup menu selections. When in menu mode, used to move up through the menu selections. Pressing the HDD and MENU keys simultaneously brings up the time code jam menu.

5)LCD Display

Primary display of 744T status. The LCD is backlit using the LCD backlight control (#15).

6)Tone Oscillator

Tone frequency, tone level, and routing are controlled in the setup menu. Press and hold to activate the tone oscillator.

7)Input-to-Track Matrix LEDs

Blue LEDs indicate inputs (1, 2, 3, 4) enabled for recording to tracks (A, B, C, D). A solid blue LED indicates an input is routed to a track. A flashing LED during “custom” routing mode shows the selected input/track combination.

8)INPUT Select Key

Pressing this key cycles through the six factory preset input-to-track routing combinations plus the custom routing menu. In the custom routing menu any input can be routed to any track. See Input-to-Track Routing, page 18.

9)Level Meter LEDs

Four, 19-segment track level-meters indicate level in dBFS. Metering ballistics are selected in the setup menu.

10)Power Key

Press and hold (150 ms) to power up the 744T. Press and hold (1 second) to power down.

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firmware v. 1.04 Features and specifications are subject to change. Visit www.sounddevices.com for the latest documentation.