Ps/Mj Shield Unit (Mj Pcb*1 And Power Supply Pcb) - Brother DCPJ525W Service Manual

9.12 PS/MJ Shield Unit (MJ PCB
(1) If the main PCB frame has not been removed, disconnect the power supply harness, MJ
(LINE) harness
"b" (shown on the previous page) from the main PCB frame.
(2) Remove the two screws shown below.
(3) Pull the ferrite core of the MJ (LINE) harness
Note: If the ferrite core is secured to the lower cover with a band instead of a core holder,
cut it off and release the MJ (LINE) harness.
(4) Release the power supply harness, MJ (LINE) harness
cable guides on the lower cover.
(5) As shown below, press lock "x" on the PS/MJ shield unit to release it from pawl "y" on the
lower cover, then remove the PS/MJ shield unit from the bottom of the lower cover.
PS/MJ shield unit
MJ (LINE) harness *
(yellow)
MJ (EXT) harness *
(black)
*1
*1
and MJ (EXT) harness
Screw, bind M3x6
Pawl "y"
2
Ferrite core *
1
1
Lock "x"
Pawl "y" provided
on the lower cover
and Power Supply PCB)
*1 For MFC only
*2 For models with main PCB B57U082
*1
from the main PCB, then remove two screws
*1
out of the core holder.
*1
Core holder
Lock "x"
U-shaped cutout
Power supply harness
Lower cover
3-83
and MJ (EXT) harness
MJ (LINE) harness *
and its ferrite core
Lower cover
(3_076)
*1
from the
1
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