56
A
A
X
X
4
4
P
P
E
E
R
R
/
/
A
A
X
X
4
4
P
P
E
E
R
R
-
-
N
N
O
O
n
n
l
l
i
i
n
n
e
e
M
M
a
a
n
n
u
u
a
a
l
l
D
D
r
r
.
.
L
L
E
E
D
D
C
C
o
o
n
n
n
n
e
e
c
c
t
t
o
o
r
r
In conjunction with Dr. LED (User Upgrade Optional), which can easily shows what kind of problems may occur on your system
during assembly. It can clearly indicate whether there is a component issue or an installed issue by the 8 LEDs on the front
panel of Dr. LED. This can helps you to have a self-diagnostic to your system status quickly.
Pin 1
1 2
5 6
3.3V
KEY
GND
S1
S2
S3
