4. Troubleshooting
4.8.8. Electrical circuit problem
No
Problem Description
Troubleshooting Page
1
Recognition error of the side cover problem
P.4–292
2
SMPS output voltage drop error
P.4–293
3
HDD makes a loud noise.
P.4–294
4
Networking is not working.
P.4–295
5
UI touch malfunction
P.4–296
6
When installing the machine, Chinese is displayed on UI.
P.4–298
7
Home screen icon is disappeared or UI screen is broken.
P.4–298
8
No power problem
P.4–299
9
Active NFC doesn't detect NFC tag.
P.4–300
1) Recognition error of the side cover problem
•
Symptom
: The side cover is closed, but the open message of the side cover displays on LCD.
•
Cause
: The spring plate of the side cover open sensor is deformed by the deformation of the stopper of the side cover.
•
Troubleshooting
1) Replace the side cover open sensor Assy or deform the spring plate to normal shape.
4-294
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