VX4S/VX4 User's Manual
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9 FAQ
Questions
Methods
LED display is off
Inspect whether the power connection is correct and the switch
has been turned on;
Play the Self test image and confirm whether the connection of
LED is correct and works normally;
Inspect whether VX4 output has signal and shows blank screen;
Inspect whether the mode and parameter of screen
configuration are correct;
Monitoring port
output is abnormal
Check whether there is image input in input channel and
whether it is correctly displayed;
Check whether PIP has been turned on, whether there is signal
input in 2 channel and whether it is correctly displayed;
Check whether monitoring output is connected correctly and it
is not loose;
Please confirm whether Monitor supports the output resolution
of VX4;
Try to cut off the power of equipment and restart it, reset VX4
and operate again;
P h a s e o f V G A
input offset
Perform VGA Auto ADJ;
P I P d i s p l a y i s
abnormal
Check whether there is signal input in 2 channel and it is
normally displayed;
Check PIP and confirm whether parameter setting is normal;
Fading is abnormal Check whether Switching effect has been enabled;
Image Mosaic is
abnormal
Check whether the VX4 Image Mosaic switch has been turned on
and whether Image Mosaic parameters settings is correct;
Check whether input signal source is normal;
Sound is abnormal
Check whether the volume settings is appropriate;
Check whether the Audio mode setting is correct;
Confirm VX4 is well connected to multifunction card, and the
corresponding output port icon on the main interface has
been highlighted; confirm whether the audio output mode of
multifunction card is HDMI mode (it is required to connect LCT
for confirmation and setting);
Please preliminarily investigate problems according to the above steps; if you cannot
eliminate the problems, please contact the local dealer or our company’s customer
service personnel.
There is high voltage inside the machine. In order to guarantee your safety, please do
not maintain the processor by yourself.
Xi’an
NovaStar
Tech
Co.,
Ltd.
