LG 43UT782V0UA Owners Manual - Page 20

External Speakers, Method of volume control port

Page 20 highlights

ENGLISH External Speakers EXTERNAL SPEAKER OUT or SPEAKER OUT LINE OUT VOLUME CONTROL Control port for Speaker out + UP - DOWN Method of volume control port (Depending upon model) •• Cable Spec. Each Up / Down pin is pulled to 3.3 V with CPU GPIO. / UP / DOWN CPU detects transition from 3.3 V to level for volume control. RIGHT LEFT : Depending upon model •• Use only with the 3 pole 3.5 mm stereo jack. •• Do not connect your headphones or earphones to the port for connecting an external speaker. 12

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12
ENGLISH
External Speakers
VOLUME
CONTROL
+
-
SPEAKER OUT
LINE OUT
EXTERNAL
SPEAKER OUT
UP
DOWN
Control port for Speaker out
RIGHT
LEFT
or
: Depending upon model
Use only with the 3 pole 3.5 mm stereo jack.
Do not connect your headphones or earphones to
the port for connecting an external speaker.
Method of volume control port
(Depending upon model)
Cable Spec.
/ UP / DOWN
Each Up / Down pin
is pulled to 3.3 V with
CPU GPIO.
CPU detects transition
from 3.3 V to
level for volume
control.