Nikon Coolpix S640 User Manual page 163

Problem
Optical zoom cannot
be used.
Digital zoom cannot
be used.
Image mode not
available.
No sound when
shutter is released.
AF-assist illuminator
does not light.
Pictures appear
smeared.
Colors are unnatural.
Randomly spaced
bright pixels ("noise")
appear in image.
Pictures are too dark
(underexposed).
Pictures are too bright
(overexposed).
Cause/Solution
Optical zoom cannot be used while recording movies.
• Digital zoom is set to Off in the setup menu.
• Digital zoom cannot be used in the following
situations.
- When Scene auto selector, Portrait or Night
portrait is selected for scene mode
- When subject tracking mode is selected
- When smart portrait mode is selected
- When Multi-shot 16 is selected for Continuous
- Before movie recording begins (digital zoom of up
to 2× can be applied while movies are being
recorded)
Another function that is set now is restricting Image
mode.
• Off is selected for Shutter sound of the Sound
settings option in the setup menu.
• Continuous, BSS, or Multi-shot 16 is selected for
Continuous in shooting menu.
• When Sports, or Museum is selected in scene mode.
• Blink proof is set to On for smart portrait mode.
• D mode is selected.
• Do not block the speaker.
• Off is selected for AF assist in the setup menu.
• AF-assist illuminator turns off automatically in some
scene modes.
Lens is dirty. Clean lens.
White balance does not match light source.
The subject is dark, so shutter speed is too slow or ISO
sensitivity is too high. Noise can be reduced by:
• Use flash.
• Specifying a lower ISO sensitivity setting.
• Using a scene mode which has noise reduction ability.
• Flash is W (off).
• Flash window is blocked.
• Subject is beyond flash range.
• Adjust exposure compensation.
• Raise the ISO sensitivity.
• Subject is backlit. Use Backlight or change the flash
mode to X (fill flash).
Adjust exposure compensation.
Troubleshooting
A
76
127
38, 39, 45
54
51
101
76
109
128
101
39, 42
52
76
4, 26
127
38 – 43
140
98
32
102
38
32
26
32
36
102
32, 43
36
151