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Keyboard / Speaker Connector (J3) - Pinout
Pin Number
Signal Flow
Signal
KBCLK I/O
KBDATA I/O
VCC (+5V)
-
SPKR
O
KBDINH
I
DOWNLD*
I
PBRES*
I
HDD ACTIVE*
O
* Active low signal
Pin Number
Signal Flow
Signal
1
2
-
GND
3
4
-
GND
5
6
-
VCC (+5V)
7
8
-
VCC (+5V)
9
10
-
GND
11
12
-
GND
13
14
-
GND
15
16
-
VCC (+5V)
Connector Pinouts
D-3
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