Nikon COOLPIX S3400 Reference Manual page 230

Problem
No sound when shutter is
released.
AF-assist illuminator does not
light up.
Images appear smeared.
Colors are unnatural.
Randomly spaced bright
pixels ("noise") appear in
image.
Randomly spaced bright
pixels ("noise") appear in
movies.
Images are too dark
(underexposed).
Images are too bright
(overexposed).
F12
Cause/Solution
• Off is selected for Sound settings>Shutter
sound in the setup menu. No sound is
produced with some shooting modes and
settings, even when On is selected.
• The speaker is blocked. Do not cover the
speaker.
Off is selected for AF assist in the setup menu.
AF-assist illuminator may not light depending on
the position of the focus area or the current scene
mode, even when Auto is selected.
Lens is dirty. Clean lens.
White balance does not match light source.
Shutter speed is too slow or ISO sensitivity is high
as the subject is dark. Noise can be reduced by:
• Using flash.
• Specifying a lower ISO sensitivity setting.
When recording movies in dim lighting, the image
may become somewhat "grainy" in appearance.
This occurs when the ISO sensitivity increases, and it
does not indicate a malfunction.
• The flash mode is set to W (Off).
• Flash window is blocked.
• Subject is beyond flash range.
• Adjust exposure compensation.
• Increase ISO sensitivity.
• Subject is backlit. Select Backlighting scene
mode or set the flash mode setting to X (Fill
flash).
Adjust exposure compensation.
A
99, E78
5, 28
98, E77
F6
44, 63, E34
53
63, E39
–
54
28
53
59
63, E39
45, 54
59