LVP603 series User Manual
www.videowall.cn
22
4- 10 Factory district setup
The following setups must be made by relevant qualified technicians or
follow the guidance of the plant technician. otherwise the incorrect and
improper operation will result to abnormal situation.
Item 28: “
Device_Init”
After enter the No.27 Item from the No.26 Item, press “V1” for 5 times
，
and then press “
↑
”move to the No.28 Item:
“Device_Init”
, click
“
←
” or “
→
” to select “Yes”, then click “Enter” to restore to the factory default
setup, and mention
“please power off & on again”
, and then just follow
the instruction.
Item 29: “
Bias”
In order to decrease the noise on gray scale display, the LED display
system usually removes the lower gray scale one of all input signals, which
will cause the lose of the video information, especially in dark scene ,such
as night view.
LVP603
can improve problems as follow mentioned by adjusting the
“ Bias”
, whose limit ranging from 0 to 32. When losing the signal of dark
scene, you can restore the drop-out information to the LED display by
increasing the value.
Normally in order to keep the completeness of output signals, the standard
value is set as
0
!
Item 30: “
Auto ADC”
After inputting the analog signal to the video processor who’s ADC has not
been revised, the picture on the display may appear some bad phenomena,
such as color cast, extreme-darkness.
LVP603
can overcome all of
problems by automatically revising white balance in terms of the input
analog signals (AV, and VGA). Figure below shows the method of
“Auto
ADC”
.
When switched to the corresponding analog input signal, the processor will
receive and output the signal to the LED display, then, get into the No.18
