Nikon autofocus speedlight SB-900 User Manual page 119

Warning indicators
Warning indicator
"Battery Power Weak"
indicator appears.
Warning beeps sound and
warning icon appears when
the camera's shutter release
button is pressed.
"Thermal Cut-out" indicator
appears.
"Safety circuit activation"
indicator appears.
The ready-light blinks
after fi ring.
Warning beeps sound for
approx. three seconds in the
remote fl ash unit.
"Filter detection failure"
indicator appears.
Cause
All operations have stopped
due to low battery power.
The SB-900's temperature
rises and the SB-900 may be
damaged.
All operations have stopped
because the SB-900's
temperature has risen
and the SB-900 may be
damaged.
All functions other than the
power switch are inoperable
because of power
abnormalities.
Underexposure may have
occurred even with the fl ash
fi ring at maximum output.
Underexposure may have
occurred even with the fl ash
fi ring at maximum output.
The attached color fi lter has
not been detected.
The lens aperture is beyond
fl ash distance range.
The lens aperture is not set
at minimum.
The camera is turned off.
Solution
Replace the batteries.
Wait until the SB-900 cools
down naturally.
Wait until the SB-900 cools
down naturally.
Turn off the power, remove
the batteries, and contact
your retailer or Nikon
representative.
Use a wider aperture or
move closer to the subject
and reshoot.
Use a wider aperture,
move closer to the subject
or change the position
of the remote fl ash unit
and reshoot.
Confi rm whether the color
fi lter is correctly attached.
Reset the aperture.
Set the aperture
to minimum.
Turn the camera on.
Ref.
page
kC-27
kF-6
kF-6
—
F
kD-4
kD-7
kD-10
kD-13
kD-42
kD-42
kD-34
—
—
—
F–3