Kenwood TS-690S (TS 690 S TS690S) mods reviews software and diagrams

You only need to hold down 2 buttons each time you turn on the radio. You have to do this each time, else the radio will reset itself. You can edit menu's and stuff.

This will be saved, but unless you hold in the two buttons each time you turn on the radio, you'll get a full reset.

It is the M>VFO and SCAN at the same time.