stator vane,
...only other switch is the EFIS Control Panel-WXR-"energizes weather radar 'transmitter' and displays weather radar returns--limited to 320 nm"
Deactivating WXR on the EFIS control panel is the equivalent of the STBY position of the selector switch on older models. The transmitter is switched off, so the system no longer radiates.
The rest remains powered up.