User manual
115
Viewing
・
Listening
and Operation
Others
Set up
Introduction
Recording
114
Viewing
・
Listening
and Operation
Others
Set up
Introduction
Recording
Cannot display the 
camera images in the 
dark.
 
Focus of the images is 
poor.
No sound is output. 
Sound sensitivity of your 
camera is poor
●
Exposure is not 
enough.
●The lens cover of the 
camera is not clean, 
or some dusts are on 
it. 
●Distance to an 
object is to close. 
●Sound volume on 
your PC is "0." 
●No microphone is 
installed.
●The microphone you 
are using is not a 
supported 
microphone.
●Setting for audio 
input is mismatched.
●The button in 
Camera Image 
screen is set to .
●Browser is set for 
"proxy."
●
Go to "Camera Settings"/ "General 
Settings"/"Auto B/W" and set the 
"Auto B/W" to ON. The images in 
the dark become black and white, 
but it enables to display the 
images to some point. If you still 
cannot display images, try using 
lights to have enough exposure. 
(See page 68) 
●
Images taken during the day are 
not affected. In addition to the 
auto B/W function, the camera is 
set with AGC (maximum value) and 
high limit for slow shutter. Set 
them in accordance with the 
environment. 
 (See page 69 and 70)
●Wipe off the lens with dried cloth. 
●The camera cannot focus at close 
range. Change the "Focus Range" 
from "Stamdard" to "Macro." (See 
page 67)
●Adjust the sound volume of your 
personal computer. (See page 16)
●Install commercial microphone to 
your network camera.
●You can install only condenser 
typed monaural microphone. Plug 
type has to be monaural 3.5mm. 
●Set "Audio input" in "Camera/Audio 
setting" to ON. (See page 79)
●Click the button in Camera 
Image screen to set it to . 
(See page 38)
●Proxy setting with the browser 
sometimes disables camera audio 
output. Reset proxy setting of the 
browser to setting of the IP 
address of the network camera or 
host name that bypasses a proxy. 
(See page 35)
●Face the microphone of the 
camera where you want to gather 
sound.
Symptom Cause
How to Manage
Before Calling Service Personnel... (Cont.)
Images are not colored.
Cannot display images 
from the network camera.
Frame Rate of network 
camera images is too 
slow.
●
Auto B/W is set to 
ON.
●
Setting for color 
difference gain is 
small.
●
The Internet line is 
busy.
●
There are not 
enough resources 
(CPU power, RAM).
●
Cookie is not 
enabled.
●
Security settings for 
Internet options are 
not matching.
●
Browser is set for 
“proxy.”
●
Picture size is too 
large.
 
●
The "Picture Quality" 
is set to "HIGH."
●
More than one users 
are accessing the 
camera at the same 
time. 
●
Browser is set for 
“proxy.”
●
Set auto B/W setting to OFF. 
(See page 68)
●
Increase color difference gain. 
(See page 71) 
 
●
Wait for a little while. Sometimes it 
takes time to display images.
●
There are the recommended 
requirements of PC to view the 
images of the network camera. 
(See page 24) 
●
Close all applications other than 
the network camera browser. 
●
Enable Cookie.
●
Change security settings for 
Internet options. (See page 34)
●
Proxy setting with the browser 
sometimes disables camera image 
display. Reset proxy setting of the 
browser to setting of the IP 
address of the network camera or 
host name that bypasses a proxy. 
(See page 35)
●
The default setting of picture size 
is VGA(640x480). Go to "Camera 
Settings"/ "General Settings"/ 
"Resolution" and set smaller 
picture size to have faster Frame 
Rate. (See page 66)
●
Selecting a low compression rate in 
"Camera/Basic setting" increases the 
delivery speed, but lowers image 
quality. (See page 67)
●
When many users access to the 
camera at the same time, the 
frame rate of the image becomes 
slow. 
●
Proxy setting with the browser 
sometimes slows camera image 
updating. Reset proxy setting of 
the browser to setting of the IP 
address of the network camera or 
host name that bypasses a proxy. 
(See page 35)
Symptom Cause
How to Manage










