Using The Sleep Timer - Sony STR-DA5400ES Operating Instructions Manual

Using the sleep timer

You can set the receiver to turn off
automatically at a specified time.
1
Press AMP.
2
Press SLEEP repeatedly.
Each time you press SLEEP, the display
changes cyclically as follows:
When sleep timer is being used, "SLEEP"
lights up in the display window of the
receiver.
Tip
To check the remaining time before the receiver
turns off, press SLEEP. The remaining time appears
AMP
on the display. If you press SLEEP again, the sleep
timer will be changed.
SLEEP
105 GB