Casio PV-750 Plus v3.0 - Manual (Page 12)

To disconnect the cradle from the CASIO BN Unit
1. Make sure that the power of both the BN Unit and your computer is turned off.
2. While squeezing the buttons on both sides of the connector, pull it straight out from the
cradle port to remove it.
3. Close the BN Unit's port cover.
Connecting the conventional models to PC
Please refer to Chapter 3.6 "Receiving Data from other CASIO Digital Diaries" if you want to
connect CASIO Digital Diaries other than the BN/PV Units to PC sync.
Connecting a CASIO BN/PV Unit to a PC 12
Squeeze here