Sony SRX-R510 Operating Instructions Manual page 47

Caution
If you tap [Stop script], processing will stop and normal
operation may be hindered.
Cannot shut down
Unplug the power cord connected to the rear of the server.
The projector switched to standby during
playback
When the projector switches to standby during playback
due to events such as sudden power outages, use the touch
panel monitor to shut down after screening is complete,
and then restart the system.
If you cannot shut the unit down using the touch panel
monitor, unplug the power cord connected to the rear of the
server, reconnect the cord, and then start the system.
47