b (Open/Close)

Opens or closes the disc compartment.

cSource buttons

AUDIO SOURCE: Selects an audio input source.

RADIO: Switches to FM band.

USB: Switches to the USB source.

DISC: Switches to the disc source.

d SETUP

Accesses or exits the setup menu.

e (Navigation buttons)

Navigates through the menus.

Press left and right for fast backward or forward search.

In radio mode, press up and down to tune the radio frequency.

In radio mode, press left or right to start auto search.

f INFO

For discs, displays information about the current status or the disc.

For slideshows, displays a thumbnail view of photo files.

g (Play/Pause)

Starts, pauses or resumes disc play.

In radio mode, automatically tunes radio stations during first-time setup.

h (Stop)

Stops disc play.

In radio mode, erases the current preset radio station.

iSURR (Surround Sound)

Switches to supported surround sound or stereo sound.

jAUDIO SYNC

Selects an audio language or channel on a disc.

Press and hold to access the setting for audio sync, then press VOL +/- to set the audio delay time.

kNumeric buttons

Selects an item to play.

lSUBTITLE

Selects the subtitle language on a disc.

mVOCAL

Changes the audio channel of a karaoke disc.

nMIC (VOL +/-)

Increases or decreases microphone volume.

oREPEAT / PROGRAM

Selects or turns off repeat or shuffle mode.

In radio mode, resets the list of preset stations: press to manually reset; press and hold to automatically reset.

pOK

Confirms an entry or selection.

q BACK

Returns to a previous screen.

For DVD, goes to the title menu.

For VCD version 2.0 or SVCD with PBC turned on, returns to the menu during playback.

r/ (Previous/Next)

Skips to the previous or next title, chapter, or track.

s (Mute)

Mutes or restores audio output.

tVOL +/-

Increases or decreases volume.

uSOUND

Selects a predefined sound effect.

vZOOM

Zooms in or out of the picture.

Fits the picture format to the TV screen (using zoom function: 1.3X and 1.6X).

Your Home Theater System English

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Philips HTS3181X/78 user manual Audio Sync Selects an audio language or channel on a disc