HP AMD Geode ECM-5510 - Manual (Page 59)

User’s Manual
ECM-5510 User’s Manual 59
2.4.28 Audio Connector (JP4)
Signal PIN PIN Signal
Mic-In 1 2 Mic Bais
GND 3 4 GND
Line-Out L 5 6 Line-Out R
Speaker L 7 8 Speaker R
Line-In L 9 10 Line-In R
GND 11 12 NC
GND 13 14 NC
GND 15 16 NC
2.4.28.1 Signal Description – Audio Connecter (JP4)
Signal Signal Description
Mic / Mic Bias The MIC signal is used for microphone input. This input is fed to the left
microphone channel.
Mic Bias provides 3.3V supplied through 3.2K Ω with capacitive decoupling to
GND. This signal may be used for bias of some microphone types.
Line-In L/R Left and right line in signals.
Line-Out L/R Left and right line out signals. Both signals are capacitor coupled and should have
GND as return.
Speaker L/R Left and right speaker out signals