Samsung ST91, ST90 user manual Before contacting a service center

Before contacting a service center

Situation	Suggested remedies
The date and time are	Set the date and time in the display settings
incorrect	menu. (p. 84)
The display or buttons	Remove the battery and insert it again.
do not work
	If you use your camera at low temperatures,
	it can cause the camera screen to
The camera screen	malfunction or discolor.
works poorly	For better performance of your camera
	screen, use your camera at normal
	temperatures.
The memory card has	The memory card has not been reset.
an error	Format the card. (p. 84)
	If you change the name of a file, your
	camera may not play the file. (Note: File
Cannot play back files	names should meet the DCF standard.) If
	you encounter this situation, play back the
	files on your computer.
	•	Make sure that the focus option you set
		is suitable for close-up shots. (p. 43)
The photo is blurry	•	Make sure that the lens is clean. If not,
		clean the lens. (p. 89)
	•	Make sure that the subject is within
		range of the flash. (p. 100)

Situation	Suggested remedies
The colors in the photo	An incorrect white balance can create
	unrealistic color. Select the proper white
do not match the actual
scene	balance option to suit the light source.
	(p. 52)
	•	Turn off the flash. (p. 41)
The photo is too bright	•	Your photo is overexposed. Adjust the
		exposure value. (p. 51)
	Your photo is underexposed.
The photo is too dark	•	Turn on the flash. (p. 41)
	•	Adjust the ISO speed. (p. 42)
	•	Adjust the exposure value. (p. 51)
	•	Make sure that the camera is correctly
The TV does not		connected to the TV with the A/V cable.
display your photos	•	Make sure that your memory card
		contains photos.
	•	Make sure that the USB cable is
Your computer does		connected correctly.
	•	Make sure that your camera is switched
not recognize your
		on.
camera
	•	Make sure that you are using a
		supported operating system. (p. 74, 79)
Your computer	The file transmission may be interrupted by
disconnects the camera	static electricity. Disconnect the USB cable
while transferring files	and connect it again.

Appendixes 98