User Guide

CCS Technical Documentation BB Troubleshooting
Company Confidential NHM-10
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Bad image quality
Dirt or dots
in image
Check for dirt in
camera window /
between window &
camera
Misfocused
or blurred
image
Check camera
window and
space between
the window and
lens
Take resolution
target image.
Check
resolution to be
above 350 TVL
Data errors
in image
Proceed as for
"Hardware failure
message"
Bad colors
Take uniform
white image
using phone
jig
Check image
for black dots
or spots.
Analyze those
Are the dots
sharp or
blurry?
Dirt is on
image sensor
-> replace
camera
Re-check the window
and lens. Check for
defective camera
window. If no help,
replace camera
No
Yes
Sharp
Blurry
Replace
camera
(misfocused
lens)
Check using color
checker and proper
illumination. View
the image on CRT
PC screen
If colors
radically differ
from normal,
replace camera
Yes
Yes
Yes
No
No
No
Analyze general image
quality. If not on usual
level, try replacing
camera. Check also
camera window and
replace if needed.
Viewfinder
image is
dark
No
Yes
Check the display
contrast setting