NovaStar VX4 - Troubleshooting; LED Display Issues; Signal and Display Problems

User's Manual of Led Display Video Controller VX4S/VX4
www.novastar-led.com 25
hardware program has been correctly updated.
Frequently asked questions and considerations
Questions
Processing mode
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;
Phase of VGA input
offset
Perform VGA Auto ADJ;
PIP display is 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 enable;
Image Mosaic is
abnormal
Check whether the VX4 Image Mosaic switch has been turned on and
whether Image Mosaic parameters settings is correct;
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