LG 26LT640H Bedienungsanleitung

MAKING CONNECTIONS

Transmits the headphone signal from the TV to 
an external device. Connect the external device 
and the TV with the headphone as shown in the 
following illustrations.

(*Not Provided)

 

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: 10 mW to 

15 mW

 

y

Headphone jack size: 0.35 cm

(Only  32/37/42/47LT64**, 32/37/42/47LT66**, 

32/37/42/47LT38**)

You may use an optional external audio system 
instead of the built-in speaker.

 

y

If you use an optional external audio device 
instead of the built-in speaker, set the TV 
speaker feature to off.

Transmits the digital audio signal from the TV to an 
external device. Connect the external device and 
the TV with the optical audio cable as shown in the 
following illustrations.

 

y

Do not look into the optical output port. 
Looking at the laser beam may damage your 
vision.

 

y

Audio with ACP (Audio Copy Protection) 
function may block digital audio output.

Connect  the  external  speaker  to  the  Speaker 

output(STEREO) jack on the TV.

OPTICAL AUDIO IN 

OPTICAL

 DIGITA

TT L

AUDIO OUT

Digital Audio System

(*Not Provided)

UP

 

y

Each Up/ Down 

pin is pulled to 

3.3V with CPU 

GPIO.

 

y

CPU detects 

transition from 

3.3V to GND level 

for volume control.

Method of Volume control port   

Cable

Spec.

VOLUME 

CONTROL

STEREO

(8    )  

    GND / Up / Down

VOLUME

CONTROL

STEREO

(8    )

Control port for 

Speaker out

DOWN

R -

R+

L -

L+