The calendar function stops working when the built-in backup battery runs out, so the date when a file has been stored is not updated.

 

The storing memory store or other operation can be performed as usual.

 

To replace the built-in backup battery, disassemble of the unit is required, so battery replacement and inspection are necessary to be done in our factory (charged).

 

Please contact our distributor where you purchased the product or send us an email. (overseas@onosoki.co.jp)

 

For the units which were manufactured in 1998 to 1999, nothing appears on the screen if the built-in backup battery runs out.