LG 32LT640H User Manual

Page of 34
19
MAKING CONNECTIONS
ENG
ENGLISH
Headphone connection
Transmits the headphone signal from the TV to
an external device. Connect the external device
and the TV with the headphone.
(*Not Provided)
 NOTE
 
y
AUDIO menu items are disabled when 
connecting a headphone.
 
y
When changing AV MODE with a headphone 
connected, the change is applied to video 
but not to audio.
 
y
Optical Digital Audio Out is not available 
when connecting a headphone.
 
y
Headphone impedance: 16 Ω
 
y
Max audio output of headphone: 9 mW to 15 
mW
 
y
Headphone jack size: 0.35 cm
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.
Speaker output SETUP
Connect  the  external  speaker  to  the  Speaker 
output(STEREO) jack on the TV.
VOLUME
CONTROL
STEREO
SPEAKER
OUT
(8    )
Control port for 
Speaker out
UP
DOWN
R -
R+
L -
L+
 
y
Each Up/ Down pin is pulled to 3.3V with CPU 
GPIO.
 
y
CPU detects sort - to - gnd for volume control.
 NOTE
 
y
External speaker must be used four 
plug(BTL: Bridge Tied Load, Stereo) as 
shown in the drawings and external speaker 
fully inserted with external Speaker Jack.
 
y
Otherwise it will cause defact.
Volume control port   
Cable
Spec.
VOLUME 
CONTROL
STEREO
SPEAKER
OUT
(8    )  
    GND / Up / Down
USB IN
USB
(*Not Provided)