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M
X
4
B
R
-
5
3
3
M
X
4
B
R
-
5
3
3
D
r
.
L
E
D
C
o
n
n
e
c
D
r
.
L
E
D
C
o
n
n
e
c
Connecting Dr. LED you can easily find the system problems that may occur while assembling. It can clearly indicate whether the
problem is caused from components or improper installation through the 8 LED lights of Dr. LED on the front panel. That is to say
you can diagnose your system status quickly.
Pin 1
GPO20
GPO19
3.3V
t
o
r
t
o
r
GPO21
2
6
5
1
GND
50
O
n
l
i
n
e
M
a
n
u
a
l
O
n
l
i
n
e
M
a
n
u
a
l
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Table of Contents
Troubleshooting
