LG 55ET961H, Owner'S Manual

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9
ENGLISH
_Inde
x
External Speakers
(Depending on model)
VOLUME
CONTROL
+
-
STEREO
(8 )
EXTERNAL
SPEAKER OUT
UP
or
DOWN
Control port for Speaker out
RIGHT
LEFT
• 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
• 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.