Casio PV-750 Plus Technical Reference Manual page 21

You cannot specify more than 60 repeats!
Cause: You specified more than 60
repeats for a Reminder data item.
Cause: The password you input
while trying to enter the secret
memory area does not match the
password that is registered.
200
Action: Shorten the specified period
of the Reminder item to reduce the
number of repeats.
Wrong password!
Action: Input the correct password.