Sony Bluetooth Utility - Manual (Page 493)

Once the program has finished searching for the devices, the [Add New Connection Wizard (Device Selection)] window will appear.
3. Select the device name of the keyboard from [Device List], and then click on the [Next] button
The [Add New Connection Wizard (Searching for Services)] window will appear.
4. Use the wireless keyboard to enter the numbers that appear in [Bluetooth Passkey (PIN Code)], and then hit the [Enter] key
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