Speaker Output Setup - LG LT64 Series Installation Manual

Speaker output SETUP

Connect the external speaker to the speaKer output(stereo) jack on the TV .
1
SPEAKER
VOLUME
CONTROL
STEREO
NOTE
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 .
Otherwise it will cause defact .
►
Method of Volume control port
Cable
Spec .
GND / Up / Down
22
UP
DOWN
OPTICAL
AUDIO IN
DIGITAL
(RGB/DVI)
AUDIO OUT
A A A K
RGB IN (PC)
OUT
RS-232C IN
(CONTROL & SERVICE)
(8 )
2
1
• Each Up/ Down pin is pulled
to 3 .3V with CPU GPIO .
• CPU detects sort - to - gnd for
volume control .
Control port for Speaker out
ANTENNA / CABLE
L -
L+
R+
R -
IN