Sony PMW-400K Operating Instructions Manual page 180

WARNING indicator Warning sound
Problem
The DC IN voltage has
become low (stage 1).
WARNING indicator Warning sound
Problem
The DC IN voltage is
too low (stage 2).
Recording cannot be
performed.
WARNING indicator Warning sound
—
Problem
You cannot use both
an i.LINK connection
and an IFU-WLM3
connection at the same
time.
WARNING indicator Warning sound
—
Problem
An error was detected
with the battery pack.
WARNING indicator Warning sound
—
Problem
The remaining power
of the backup battery
is insufficient.
180 Operation Warnings
Operation in the recorder
module
Recording continues.
Operation in the recorder
module
Recording stops.
—
Operation in the recorder
module
Recording continues.
—
Operation in the recorder
module
Recording stops.
—
Operation in the recorder
module
Recording continues.
Tally/REC Battery remaining
Action to take
Check the power supply.
Tally/REC Battery remaining
Action to take
Connect other power source.
Tally/REC Battery remaining
— —
Action to take
Turn off the power, and disconnect either the
i.LINK or IFU-WLM3.
Tally/REC Battery remaining
— —
Action to take
Replace the battery pack with a normal one.
Tally/REC Battery remaining
— —
Action to take
Refer to a Sony service representative to replace
the battery with a new one.