Speaker Output Setup; Volume Control Port; Headphone Connection; Usb Connection - LG LT64 Series Owner's Manual

Speaker output SETUP

Connect the external speaker to the Speaker
output(STEREO) jack on the TV.
UP
DOWN
SPEAKER
OUT
VOLUME
CONTROL
STEREO
(8 )

Volume control port

Cable
Spec.
GND / Up / Down
Each Up/ Down pin is pulled to 3.3V with CPU
y
GPIO.
CPU detects sort - to - gnd for volume control.
y
NOTE
External speaker must be used four
y
plug(BTL: Bridge Tied Load, Stereo) as
shown in the drawings and external speaker
fully inserted with external Speaker Jack.
Otherwise it will cause defact.
y
Control port for
Speaker out
R -
R+
L -
L+
MAKING CONNECTIONS

Headphone connection

Transmits the headphone signal from the TV to
an external device. Connect the external device
and the TV with the headphone.
NOTE
AUDIO menu items are disabled when
y
connecting a headphone.
When changing AV MODE with a headphone
y
connected, the change is applied to video
but not to audio.
Optical Digital Audio Out is not available
y
when connecting a headphone.
Headphone impedance: 16 Ω
y
Max audio output of headphone: 9 mW to 15
y
mW
Headphone jack size: 0.35 cm
y

USB connection

Connect a USB storage device such as s USB
flash memory, external hard drive or a USB
memory card reader to the TV and access the My
media menu to use various multimedia files.
19
(*Not Provided)
USB
(*Not Provided)