Bad Image Quality - Nokia NHL-2NA Series Troubleshooting Instructions

NHL-2NA

Bad image quality

Bad image quality
Yes
Viewfinder
image is
dark
No
Yes
Dirt or dots in camera window /
in image
No
Misfocused
Yes
or blurred
image
No
Yes
Data errors
in image
No
Analyze general image
quality. If not on usual level,
try replacing camera.
Check also camera window
in acoustic chamber
assembly and replace if
needed.
Page 18
Check the display
contrast setting and
adjust to be correct
Check & clean dirt
OK?
between window &
camera
Check & clean
Take real world
camera window
test image and
and space
check
between the
sharpness
window and lens
Proceed as for
"Hardware failure
message"
¤Nokia Corporation
CCS Technical Documentation
Check image
No
Take uniform
for black dots
white image
or spots.
using MJF-7
Analyze those
OK?
No
Replace
camera
(misfocused
lens)
Re-check the window
and lens. Check for
defective camera
window. If no help,
replace camera
Blurry
Are the dots
sharp or
blurry?
Sharp
Dirt is on
image sensor
-> replace
camera
Issue 1 06/02