BenQ SNS21 Installation Manual page 6

1. Inner frame assembly.
3
C
2
B
3
C
2
1
A
A
2
C
B
1
A
J 4
A
1
Connect the left and right parts of the long
inner frame (A). Fasten them with three M5x10
screws (K).
Complete the inner frame assembly of two
long sides.
K
Insert the bracket (C) to the short inner frame
(B). Fasten them with two M5x10 screws (K).
K
Complete the inner frame assembly of two
short sides.
6
3
C
2
B
3
C
2