Chapter
1
Motherboard
Description
1-17
1.6.1 Front Panel Connector: JPANEL1
Pin Assignment Function
Pin
Assignment
Function
No.
No.
1
Speaker
2
Sleep Control
Sleep
3
NC Speaker
4
Ground
Button
5
Ground Connector
6
NA
7
+5V
8
Power LED (+)
9
HDD LED (+)
Hard Disk
10
Power LED (+)
11
HDD LED (-)
LED
12
Power LED (-)
POWER
LED
13
Ground Reset
14
Power Button
POWER
15
Reset Control
Button
16
Ground Button
17
NA
18
KEY
19
NA
20
KEY
21
+5V
22
Ground
23
IRTX
IrDA
Connector
24
IRRX
IrDA
Connector
Speaker Connector
An offboard speaker can be installed on the motherboard as a manufacturing option.
It can be connected to the motherboard at the front panel connector. The speaker
(onboard or offboard) provides error beep code information during the Power On
Self-Test when the computer cannot use the video interface. The speaker is not
connected to the audio subsystem and does not receive output from the audio
subsystem.
SPEK
PLED
PWR
K
E
Y
HDLED
IrDA
NA
SLP
(-)
(+)
(-)
(+)
(+)
NA
REST
2
1
24
23
IrDA
Содержание M7TTB
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