6-3. Do-it-yourself maintenance
X Type A
Take out the mechanical key.
Remove the cover.
To prevent damage to the key, wrap the tip
of the screwdriver with tape.
Remove the depleted battery.
Insert a new battery with the “+” terminal
facing up.
X Type B
Take out the mechanical key.
Remove the cover.
Remove the battery cover.
Remove the depleted battery.
Insert a new battery with the “+” terminal
Replacing the battery