FAQ and Maintenance 116
Front panel is not in good contact with interface board, so signals are not output to the
interface board. Please pull out and plug the front panel again.
There is an error in front-end device.
Configured screen and observed screen are not the same one.
The display doesn’t support the output resolution of decoding channel.
Network error.
5.
Q: There is no video output whether it is one-channel, multiple-channel or all-channel
output.
A: This may be due to:
The program is incompatible with front-end third-
party manufacturers’ devices.
Upgrade correct program again.
Video source error.
Hardware failure.
6.
Q: Real-time image problem. For example, video image color and brightness are distorted
seriously.
A: This may be due to:
The device is incompatible with the monitor resistance; ground connection is
inconsistent.
Video transmission distance is too far or attenuation of video transmission cable is too
large.
Color and brightness setups are incorrect.
7.
Q: Decoding and output to video wall are not fluent.
A: This may be due to:
Poor network environment.
Setup (frame rate) error or failure of front-end device.
Limitations in decoding capacity of decoding channel.
Decoding channel failure.
8.
Q: Images on the wall flicker or they are interfered by stripes.
A: This may be due to:
Display and video matrix platform have no common grounding.
Video cable quality is poor or it is too long.
9.
Q: There is no audio during monitoring.
A: This may be due to: