Powering; Lithium Ion Rechargeable Battery; External Powering And Battery Charging - Sound Devices 788T-SSD User Manual And Technical Information

Navigate to either the internal drive or CF card from the computer and copy all needed audio fi les to
6.
local storage on the computer.
To avoid possible directory corruption on the 788T internal drive, always properly dismount the
unit from the operating system. On Mac platforms, drag the drive icons to the trash. On Windows
platforms, use the "Disconnect External Media" icon in the system tray.
To disconnect the 788T from the computer:
1. Make certain that any software applications that reference the 788T drive are closed and that all fi le
copy functions to and from the 788T have completed.
2. In Mac OS X highlight the drive icon on the desktop and select
drag the drive icon to the trash in the dock. In Windows, right-click the drive icon and select "eject."
3. The cable between the computer and 788T can now be disconnected. If a future connection is going to
be made the cable can be left connected.
If the 788T is disconnected from the computer via an eject command and the chosen cable is still
physically connected between the computer and recorder, the data connection can be made by enter-
ing the Setup Menu and selecting FIREWIRE/USB: CONNECTION. Alternatively, simultaneously press
the STOP and HDD keys to begin a connection.
Do not remove the CompactFlash card while FIREWIRE/USB: CONNECTION appears in the LCD.

Powering

The 788T is powered from either removable, Li-ion rechargeable batteries or external DC power. The
included, removable 7.2 V Li-ion cell can be used as a primary or backup power source. The 788T
automatically chooses the power source based on the voltage level of the external power supply. If
it falls below a factory-set threshold, the unit will transition to Li-ion power. The transition between
external and removable battery powering is seamless and has no affect on recording or playback
operation.
Run times can vary considerably from one to four hours when powering the 788T with the included
4600 mAh Li-ion battery. Run times are dependent on setup.

Lithium Ion Rechargeable Battery

The 788T is compatible with Sony L-mount Li-ion rechargeable batteries. Numerous power capaci-
ties are available in these battery types, ranging from 1000 mAh to 7000 mAh. The 788T's mount
accommodates unlimited battery depth. Larger amp-hour cells provide more run time.
When powered by the removable Li-ion battery the LCD displays the battery voltage. The nominal
operating voltage for Li-ion batteries is 7.2 V, with operating voltages ranging between 6.5–8.5 V.
When the voltage drops to 6.9 V, the voltage display on the LCD will begin fl ashing and the power
LED will also fl ash red to warn that the battery is nearly depleted. When the voltage reaches 6.5 volts
the 788T will power down—any recordings in-process will automatically close (stop).

External Powering and Battery Charging

The 788T can be powered externally from 10–18 VDC (4 amp minimum). DC input uses a 4-pin Hi-
rose connector (Part # HR10-7P4P). External DC fully powers the unit and charges an attached Li-ion
battery simultaneously using the 788T's onboard Li-ion charger.
Pin-1 of the external DC input is at the same ground potential as chassis and signal ground.
788T/788T-SSD User Guide and Technical Information
-e to eject the volume. Alternatively,
See Power Consumption Variables.
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