Genuine Toshiba owner's manual. Couldn't really ask for more. And written in understandable English in contrast to a few recent experiences I have had with manuals for other equipment other than Toshiba but made in China and written in "Chinglish"!
Text excerpt from page 15 (click to view)
HOW TO SET THE SLEEP TIMER Press the SLEEP button over and over. Each press changes the amount of time the radio will play before shutting off automatically, 60 through 0 minutes. HOW TO USE THE DIAL LIGHT (button on top of radio) The LIGHT button causes the display to be illuminated. After 10 seconds, or when the LIGHT button is pressed again, the light will go out.