Onkyo 8555 Instruction Manual - Page 24

Enjoying Audio Sources-Continued DIMMER SLEEP MUTING PHONES Muting the receiver (remote controller only) You can temporarily mute the output of the receiver. 1 Press the remote controller's [MUTING] button. The receiver is muted. To unmute the receiver, press the [MUTING] button again. Note: The Mute function will be cancelled if the remote controller's VOLUME buttons are pressed or the receiver is set to Standby. Using Headphones You can connect a pair of stereo headphones (1/4-inch phone plug) to the receiver's PHONES jack for private listening. Notes: • Always turn down the volume before connecting your headphones. • Sound output from speakers is not turned off even if (when) the headphones plug is inserted in the PHONES jack. To turn off or on the sound output from speakers, use the SPEAKERS A and SPEAKERS B switches. Setting the Display Brightness You can adjust the brightness of the display. 1 Remote controller Press the remote controller's [DIMMER] button repeatedly to select: dim, dimmer, or normal brightness. Using the Sleep Timer (remote controller only) With the sleep timer, you can set the receiver so that it turns off automatically after a specified period. 1 Remote controller Press the remote controller's [SLEEP] button repeatedly to select the required sleep time. You can set the sleep time from 90 to 10 minutes in 10 minute steps. The SLEEP indicator appears on the display when the sleep timer has been set, as shown. The specified sleep time appears on the display for about 5 seconds, then the previous display reappears. SLEEP indicator To cancel the sleep timer, press the [SLEEP] button repeatedly until the SLEEP indicator disappears. To check the remaining sleep time, press the [SLEEP] button. Note that if you press the [SLEEP] button while the sleep time is being displayed, you'll shorten the sleep time by 10 minutes. 24