PCAN-Router Pro FD – User Manual
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Figure 10: Position of the button cell for the real-time clock on the main board
A new button cell lasts several years. If the internal clock indicates
an unexpected time, remove the button cell, and measure its vol-
tage. The nominal voltage is 3.0 volts. If the measured voltage is
lower than 2.5 volts, replace the button cell.
Attention!
Electrostatic discharge (ESD) can damage or destroy
components on the card. Take precautions to avoid ESD.
Do the following to replace the button cell:
1.
Disconnect the device from the power supply.
2.
Remove the two upper screws on the front and rear of the
housing.
3.
Pull the housing cover upwards.
4.
Only with backup battery installed:
Remove the backup battery before replacing the button cell.
5.
Carefully remove the button cell from the holder.
