Mj/Ps Shield Unit (Mj Pcb And Power Supply Pcb) - Brother MFC5490CN Service Manual

6.1.10 MJ/PS Shield Unit (MJ PCB and Power Supply PCB)

(1) If the main PCB shield frame has not been removed, disconnect the power supply harness,
main-MJ (LINE) harness and main-MJ (EXT) harness from the main PCB, then remove
screw "d" (shown on the previous page) from the main PCB shield frame.
(2) Remove the two screws ("h" and "i") as shown below.
(3) Release the harnesses from the cable guides provided on the lower cover and remove the
MJ/PS shield unit from underside of the lower cover.
Main-MJ (LINE) harness
Main-MJ (EXT) harness
"i"
"h"
6-37
Lower cover
MJ/PS shield unit
U-shaped cutout
Power supply harness
(6_49_BHL9_A4)
"h": Screw, pan (s/p washer) M3x8
"i": Taptite, cup S M3x6
Confidential