ENGLISH
9
External Speakers
VOLUME
CONTROL
+
-
STEREO
(8 )
EXTERNAL
SPEAKER OUT
UP
or
DOWN
Control port for Speaker out
RIGHT
LEFT
GND
GND
: Depending on 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 on model)
•
Cable Spec.
GND / UP / DOWN
Each Up / Down pin is
pulled to 3.3 V with CPU
GPIO.
CPU detects transition
from 3.3 V to GND level for
volume control.
Summary of Contents for 55UU761H
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