Avalue ECM-A50M - Manual (Page 17)

ECM-A50M Quick Installation Guide
ECM-A50M Quick Installation Guide 17
2.3.12 Audio connector (JAUDIO)
Signal PIN PIN Signal
GND 12 11 MIC1_JD
LIN1_JD 10 9 FRONT_JD
MIC1_L 8 7 MIC1_R
LIN1_L 6 5 LIN1_R
GND 4 3 GND
FRONT_L 2 1 FRONT_R
2.3.13 LCD backlight brightness adjustment (JVR)
Signal PIN
GND 3
LVDS_BLKT_CTRL 2
+5V 1 Variation Resistor
(Recommended: 4.7KΩ,
>1/16W)