25
REMOTE CONTROL
ENG
ENGLISH
ENGLISH
VOLUME
CONTROL
STEREO
SPEAKER
OUT
(8 )
UP
Control port for
Speaker out
DOWN
y
y
Each Up/ Down pin is pulled to 3.3V with CPU
GPIO.
y
y
CPU detects that vol. crtl. Port is shorted to
GND for volume control. (Only LT64**, LT65**,
LT76**, LS64**)
y
y
CPU detects transition from 3.3V to GND level
for volume control.
Volume control port
Speaker output setup
Connect the external speaker to the Speaker
output(STEREO) jack on the TV.
(Only LT64**, LT65**,
LT76**
, LS64**)
(Only LT74**)
GND / Up / Down
Cable
Spec.
External speaker out
Connecting External Speaker.
NOTE
y
y
Make sure when connecting External
Speaker that TV is Power OFF.
NOTE
y
y
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.
(Only LT64**, LT65**,
LT76**
, LS64**)
y
y
External speaker must be used three plug
(SE : Single Ended, Stereo) as shown in
the drawings and external speaker fully
inserted with external Speaker Jack.
(Only
LT74**)
y
y
Otherwise it will cause defact.
(Only LS34**)
LEFT
RIGHT
GND
R+
R -
L -
L+
EXTERNAL
SPEAKER OUT
GND
VOLUME
CONTROL
STEREO
SPEAKER
OUT
(8 )
UP
Control port for
Speaker out
DOWN
R -
R+
L -
L+
VOLUME
CONTROL
STEREO
SPEAKER
OUT
(8 )
