Pentax K-5 Operating Manual page 79

In rare cases, the camera may not operate correctly due to static
electricity. This can be remedied by taking the battery out and putting it
back in again. When the mirror remains in the up position, take the battery
out and put it back in again. Then, the mirror will retract when the camera
is turned on again. After these procedures are done, if the camera
operates correctly, it does not require any repairs.
We recommend checking the following items before contacting a service
center.
Problem I Cause I Remedy
The battery is not Check if a battery is installed. If not, install a
The camera installed fully charged battery.
does not turn
on The battery power Replace with a fully charged battery or use
is low the AC adapter kit K-AC50 (optional). (p.53)
Set the tens aperture ring to the A position
The tens aperture (p.102) or select [Permitted] in [27. Using
ring is set to other Aperture Ring] of the [C Custom Setting 4]
than the A position menu. (p.339)
The shutter The built-in flash is
cannot be charging Wait until charging is finished.
released
There is no available
space on the SD
Memory Card
Recording
Autofocus
does not work
The subject is
difficult to focus on
The subject is not
in the focusing
area
The subject is too
close
Insert an SD Memory Card with available
space or delete unwanted images. (p.55,
p.84)
Wait until recording is finished.
Autofocus cannot focus welt on subjects
that have tow contrast (the sky, white walls,
etc.), dark colors, intricate designs, rapidly-
moving objects or scenery shot through a
window or a net-like pattern. Lock focus on
another object located at the same distance
as your subject, then aim at the target and
press the shutter release button fully.
Alternatively, use manual focus. (p.132)
Position the subject in the focus frame in the
middle of the viewfinder. If the subject is outside
the focusing area, aim the camera at the subject
and lock the focus, then compose a picture and
press the shutter release button fully. (p.130)
Move away from the subject and take a
picture.