Demo Function; Easy Setup; Setting The Time - Panasonic SC-VK680 Operating Instructions Manual

The unit can display a demonstration of its functions when
"DEMO ON".
Press and hold [g, –DEMO].
The display changes each time the button is held down.
DEMO ON  DEMO OFF
While in standby mode, select "DEMO OFF" to reduce power
[g, –DEMO]
consumption.
Note
When the DEMO function is on, the Dimmer switches off
automatically.
CLOCK
zPLAY zREC
Original display
Note
Reset the clock regularly to maintain accuracy.