22
Introduction
TV front and side panel controls and connections
2 USB ports
1 Digital Audio jack
3 HDMI
®
ports
ARC HDMI
®
only port
Power LED
Remote sensor
Ambient light sensor
(Sample Illustration) L7400U Series front and side panel controls and
connections
Front panel
1
Power On/Standby LED
—Power indicator light, (glows green
when the TV power is On).
2
Ambient light sensor
—This sensor detects the ambient light
conditions to optimize the backlighting levels, see
.
3
Remote Sensor
—Point the remote control toward this remote
sensor, see
“Remote control effective range” on page 46
.
Left side
4
3 HDMI
®
Ports
—High-Definition Multimedia Interface input
receives digital audio and uncompressed digital video from an
HDMI
®
device. HDMI
®
connection is necessary to receive 1080p
signals.
5
ARC HDMI
®
only port
—Audio Return Channel (ARC) enables
the audio signal of the TV to be sent to an AV amplifier via the
HDMI cable.
6
Digital Audio Jack
—Optical audio output in Dolby
®
Digital, DTS
®
or PCM (pulse-code modulation) format for connecting an external
Dolby
®
Digital and/or DTS
®
decoder, amplifier, A/V receiver, or
home theater system with optical audio input.
7
2 USB Ports
—Used to access video, music, or photo files with
USB device.
TV front and side panel controls and connections