3-3
D
C
e
d
f
a
b
D
C
Bracket board
Main board
Audio & Digital input board
Bracket board
Front board
a
e
f
A
b
B
Connection board
E
D
E
6
5
62
9
66
13
29
30
37
41
39
34
40
61
67
33
64
65
63
34
34
35
10
10
10
9
9
8
34
57
39
39
43
42
48
44
47
45
46
58
59
60
2
38
53
52
63
51
50
49
68