ENGLISH
10
External Speakers
(Depending on model)
AUDIO
LINE OUT
+
-
VOLUME
CONTROL
STEREO
(8 )
EXTERNAL
SPEAKER OUT
UP
DOWN
Control port for Speaker out
LEFT
RIGHT
: Depending on model
or
or
•
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 44UT640S Series
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