Exactly as described, the full user-manual (145 pages). Perfect.
Text excerpt from page 34 (click to view)
When the set time has elapsed
Playback stops automatically.
To check the time till playback is stopped
Press the MENU key repeatedly until " " is displayed, and then perform the operation in step 2 to select "OFF".
To change the set time
Press the MENU key repeatedly until " " is displayed, and then perform the operation in step 2.
To cancel the sleep mode after setting it
To exit from the sleep mode before the set time has elapsed, press the MENU key repeatedly until " " is displayed, and then perform the operation in step 2 to select "OFF". The sleep mode is also exited when the power is turned off (page 19) before the set time has elapsed.