1
×4
B
REMARK
Please do not screw too deep or too shallow.
A
Put a blanket under the board to avoid scratch
or damage.
Too deep Too shallowAppropriate position
A
×6
X4
B
X6
A
1
4
1
2 3
4 5
6
7
8 9
10 11
12
13
14
15
16 17
18
19
20 21
DEV
V
ISE
Put a blanket under the board to avoid
1.
2.
