LG 24LN572MBUB Owner's Manual page 21

External Speakers
(Depending upon model)
EXTERNAL
SPEAKER OUT
or
SPEAKER OUT
LINE OUT
AUDIO
LINE OUT
VOLUME
CONTROL
Control port for Speaker out
+
-
GND
RIGHT
LEFT
GND
: 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.
UP
DOWN
Method of volume control port
(Depending upon model)
• Cable Spec.
GND / UP / DOWN
External Devices
Supported external devices are: Blu-ray player, HD
receivers, DVD players, VCRs, audio systems, USB
storage devices, PC, gaming devices, and other
external devices.
• The external device connections shown may differ
slightly from illustrations in a manual.
• Connect external devices to the TV regardless about
the order of the TV port.
• If you connect a gaming device to the TV, use the
cable supplied with the gaming device.
• In PC mode, there may be noise associated with the
resolution, vertical pattern, contrast or brightness.
If noise is present, change the PC output to another
resolution, change the refresh rate to another
rate or adjust the brightness and contrast on the
[Picture] menu until the picture is clear. Depending
upon the graphics card, some resolution settings
may not allow the image to be positioned on the
screen properly.
• Refer to the external equipment's manual for
operating instructions.
Each up/down pins
are connected to
CPU with pull up
resistor respectively.
CPU detects
transition from 3.3
V to GND level for
volume control.
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