13
IX. Fault Analysis and Troubleshooting
Common faults
Fault phenomena
Main cause
Corrective action
The monitor is not energized.
Please reconnect the power cable or
replace it with new.
After the machine
is powered on,(the
power supply fan
works), but the
display is not on.
The signal wire of the display is not
connected or damaged.
Please reconnect the signal wire or
replace it with new.
The power supply is inconsistent with the
machine’s parameters.
Please check whether the power supply
is consistent with the machine’s
parameters.
Fuse is burnt out.
Please replace the fuse.
The power supply is not connected.
Please confirm 110V~220V power
supply is connected and the power
switch is on
After the machine
is powered on,
nothing
happens
and the screen is
not lit.
The signal wire of the display is not
connected or damaged.
The signal wire of the display is not
connected or damaged.
The machine is not
powered on.
Check whether the input of the 110V~220V
power supply is right. The short circuit is
not allowed.
Please check whether the voltage of the
circuit board inside the machine is
abnormal.
The control panel
is not powered on
Check whether the output of 12V of the
power supply box is normal.
Please adjust the cable to the correct
position.
The cable of the display might fall off or be
loosen due to vibration.
Please check the power supply circuit or
replace the power line.
The display has no
raster.
The display is not on..
Turn on the machine again manually.
The power is off on
the midway.
The circuit protector generates an action
and the power switch is turned off (Note:
The circuit protector cuts off the current
when the abnormal current flows).
Please turn on the power switch again.
When the circuit protector repetitively
acts, it indicates that the machine is
abnormal. Please contact the dealership.
Manually start the power start button of
the host machine.
The host power is bad or replaced.
The motherboard memory bank is bad or
replaced.
After the product is
powered on, the
display is a white
screen without any
image or sound.
The host machine does not work.
The motherboard is bad. Please contact
professional and manufacturer.
Pressing start key
cannot start the
The start button holder is loose, and the
switch line is loose.
The button holder is broken or replaced,
the switch wire is pressed, and the start
