Note: if you upgrade to half, the progress bar stops, at this point, the instrument must be
power down after the restart, and then USB upgrade.
10.Common faults and maintenance
Failure phenomena
Cause analysis
Elimination method
“POWER” is not bright
Power input not in good
contact
Check whether the power input is loose
Color loss or no video
signal output
The signal line is not
connected at both ends
Check signal lines at both ends of the
interface to ensure that the connection is
correct and good
Output connection display
resolution is low
Regulate resolution of input signal source
or change display with high resolution
Peripheral display device
image has shadow
Input and output
connection wire quality is
not up to standard or
damage
Replace normal standard wire
Bad connection between
input and output devices
Check connection and interface
Output image interference
Input / output not well
grounded
Connect input and output in correct manner.
Plug in audio and video
interface has obvious static
The machine is not well
grounded.
Connect the machine to a good grounding
Unable to manually switch
the input signal source
channel
The system is in front
panel lock state
Send the serial port command "/%Unlock;"
unlock the lock state
When signal switching, no
corresponding image output
Input wiring loose or
damaged
Use related instruments (such as a
multimeter) to eliminate
Output connection loose
or damaged
Use related instruments (such as a
multimeter) to eliminate
