Brother MFC-J3520 Service Manual page 210

(5) Remove the two screws (TAPTITE CUP S M3x6) and remove the Main PCB ASSY
from the Main PCB frame.
<Rear>
(6) Remove the USB ground plate from the Main PCB ASSY.
(7) Remove the Pictbridge ground plate from the Main PCB ASSY.
Pictbridge ground plate
Harness routing: Refer to
ASSY"
TAPTITE CUP S M3x6
Fig. 3-104
Fig. 3-105
" Main PCB
1
3-90
Main PCB ASSY
USB ground plate
Main PCB ASSY
ASSY", " Main PCB ASSY and MJ PCB
2
<Front>
TAPTITE CUP S M3x6
Insulation film
Main PCB frame
Confidential