Aopen ax4bpro Manual De Usuario
57
A
A
X
X
4
4
B
B
/
/
A
A
X
X
4
4
B
B
P
P
r
r
o
o
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 (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
GND
GPO18
GPO19
GPO20