Troubleshooting of Regular Malfunctions
13-1
13 Troubleshooting of Regular
Malfunctions
13.1 System Cannot Power On
13.1.1 Related Modules or Boards
No. Descriptions Remarks
1 DC-DC board /
4 AC-DC board /
5 Mother board assembly /
6 PC carrier board /
7 PC module assembly /
8 AC connection board /
13.1.2 Key Points Supporting Troubleshooting
No. Key Points Supporting Troubleshooting Remarks
1 Power-on status indicator
Backlight of the power
button
2 AC indicator
On the control panel
3 Three power supply indicators On IO back board. Define as 3.3
V/5 V/12 V
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