Sony DSC-P20 Operating Instructions (primary manual) Operating Instructions Manual page 74

Symptom
Your camera cannot delete
an image.
The power turns off
suddenly.
A file error occurs when
you play back a file.
The picture is
monochrome (black and
white).
Your personal computer
does not recognize your
camera.
74
Cause and/or Solution
• The image is protected.
t Cancel the protection (page 59).
• If you do not operate the camera for about three
minutes while the power is on, the camera turns off
automatically to prevent wearing down the battery
(page 11).
t The auto-power off function (page 11) is
activated. Turn on the camera.
• The battery is discharged.
t Replace it with a charged battery or new
alkaline batteries.
• The image size is larger than 1216×912.
• The camera is set to TEXT mode.
t Cancel TEXT mode (page 47).
• P. EFFECT is set to B&W mode.
t Cancel B&W mode (page 52).
• The battery level is low.
t Use the AC power adaptor (not supplied)
(page 14).
• The camera is turned off.
t Turn on the camera.
• The USB cable is not connected firmly.
t Disconnect the USB cable, and connect it again
firmly. Make sure that "USB MODE" is
displayed on the LCD screen (pages 31, 33).
• The USB connectors on your personal computer are
connected to other equipment besides the keyboard,
the mouse, and your camera.
t Disconnect the USB cables except for the ones
connected to the keyboard, the mouse, and your
camera.
• The USB driver is not installed.
t Install the USB driver (page 31).
• [USB CONNECT] is set to [PTP] in the setup
settings.
t Set it to [NORMAL] (page 66).
• Since the camera is connected to a computer with
the USB cable before installing the USB driver, the
drive is not recognized by the computer.
t Delete the drive which is not recognized, then
install the USB driver. For details, see the
procedure on page 76.