Acer Aspire M3910 Service Guide - Page 65

Pin 1 3 Signal Name +5V SPDIF 2 4 Pin Signal Name KEY GND C_INTRUSION: Chassis detect header This detects if the chassis cover has been removed. This function needs a chassis equipped with intrusion detection switch and needs to be enabled in BIOS. Pin 1 2 Signal Name Caseopen GND INT_SPK1: Internal speaker Pin 1 3 5 7 Signal Name Output_L Output_R GND N/A 2 4 6 8 Pin Signal Name GND Ground GND VCC OBR: Button recovery jumper Pin 1 2 OBR GND Signal Name PRINTER: Oboard parallel port header Pin 1 3 5 7 Signal Name STROBE PD1 PD3 PD4 2 4 6 8 Pin PD0 PD2 PD4 PD6 Signal Name 57 Chapter 5