5 Maintenance and Repair
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5
Chapter 5 Maintenance and Repair
5.1 Daily and Periodical Inspection
Table 5-1 Carry out daily and periodic inspection as follows:
Type
Cycle
Inspection Items
Daily check
Daily
Check the ambient temperature, humidity, dust, foreign objects.
Check whether there is abnormal noise
Check whether the USB connector cover and the battery cover are
installed properly.
Check whether the LCD display is normal.
Check whether the operation through the keys is normal.
Check whether there is abnormal smell.
Periodical
Inspection
1 year
Check whether the fastening parts get loosened.
Check whether there is overheat.
Check whether the USB connector gets damaged.
Check whether the fastening parts of USB connector and RJ45
interface get loosened.
Check whether the SD card is installed properly.
Check whether the battery is installed properly.
Replace
periodically
About 10 years
Replace the button battery.
5.2 Battery Replacement
Figure 5-1 Replace the battery
Step 1: Use a slotted screwdriver or fingers to remove
the battery cover.
Step 2: Take out the battery with tweezers or a
slotted screwdriver.
