11-2 Troubleshooting of Regular Malfunctions
The AC input is normal ,AC power
indicator remains off;
Power–on status indicator: off after
power button pressed
Power indicators: off
AC_DC power
board: function
normal;
AC power indicator: ON;
Power–on status indicator: blinks after
power button pressed
Power indicators: off
Power on/off indicator: blinks and turns
on after pressing power button
Power indicator: 5V off or 3.3V off
11.2 System Cannot Start up Normally
11.2.1 Module or Board Related
11.2.2 Key Points Supporting Troubleshooting
Key Points Supporting Troubleshooting
Character and progress status during the
starting of the system
Alarm and prompts during the starting of the
system
Backlight status during power on the control
panel
Support to check if the
malfunction occurs in power
supply module or CPU module