Nikon D3000 User Manual page 202

Indicator
Monitor
This card is not formatted.
Format card?
Card is full
—
Subject is too bright.
Subject is too dark.
No Bulb in S mode.
—
Flash is in TTL mode. Choose
another setting or use a CPU
lens.
—
Flash error
n
184
Viewfinder
T
Format card or turn camera off and insert new
(blinks) memory card.
• Reduce quality or size.
j
• Delete photographs.
(blinks)
• Insert new memory card.
●
Camera can not focus using autofocus. Change
(blinks) composition or focus manually.
• Use a lower ISO sensitivity
• Use commercial ND filter
q • In mode:
S Increase shutter speed
A Choose a smaller aperture (larger f-number)
• Use a higher ISO sensitivity
• Use flash
r • In mode:
S Lower shutter speed
A Choose a larger aperture (smaller f-number)
A
(blinks) Change shutter speed or select manual exposure
& mode.
(blinks)
Flash has fired at full power. Check photo in
monitor; if underexposed, adjust settings and try
again.
N
(blinks)
Change flash mode setting on optional flash unit
or use CPU lens.
• Use the flash.
• Change distance to subject, aperture, flash
range, or ISO sensitivity.
• Optional SB-400 flash unit attached: flash is in
bounce position or focus distance is very short.
N/s
Continue shooting; if necessary, increase focus
(blinks)
distance to prevent shadows from appearing in
photograph.
Error occurred updating firmware for optional
flash unit. Contact Nikon-authorized service
representative.
Solution
0
21
50
33,
101
20
28,
42, 48
62
—
69
70
62
58
69
70
69, 71
—
157
58
61,
62, 70
—
—