Canon Board-C1 Installation Procedure page 6

16) Attach Flat cable [1] on the main controller board [2].
CAUTION:
・Insert the Flat Cable face up.
17) Attach Wireless board [1].
・Hook [2]
・Screw [3] (TP;M3×6)
18) Attach Flat cable [1] on the W-LAN board [2].
19) Put all covers back.
・Control cover
・Left cover
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