Acer Veriton M4618G Service Manual page 103

C_INTRUSION: Chassis detect header
This detects if the chassis cover has been removed. This function needs a chassis
detection switch and needs to be enabled in BIOS.
INT_SPK: Internal speaker
Pin
1
3
5
7
OBR: Button recovery jumper
PRINTER: Oboard parallel port header
Pin
1
3
5
7
9
11
13
15
17
19
21
23
25
95
Pin1-2
Short Chassis cover is removed
Open Chassis cover is closed
Signal Name
Output_L
Output_R
GND
N/A
Pin
1 OBR
2 GND
Signal Name
STROBE
PD1
PD3
PD5
PD7
BUSY
SLCT
ERROR
SLCTIN
Ground
Ground
Ground
Ground
Signal Name
Pin Signal Name
2 GND
4 Key
6 GND
8 VCC
Signal Name
Pin Signal Name
2 PD0
4 PD2
6 PD4
8 PD6
10 ACK
12 PE
14 ALF
16 INTT
18 Ground
20 Ground
22 Ground
24 Ground
26 NC
equipped with intrusion
Chapter 5