LG LV30 G Series, Руководство по установке

Страница: 29 / 52

29 SPEAKER OUTPUT SETUP
ENGLISH
NOTE
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.
y
Otherwise it will cause defect.
y
Use only with the 3 Pole 3.5 mm Stereo Jack.
y
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.