Brother MFC990CW Service Manual page 224

(3) While pulling the lock arm on the top charge cover outwards, slide the cover to the rear to
release four hooks from the upper cover and then take it off the upper cover.
(4) Disconnect the charge harness from the charge PCB.
Top charge cover
Top charge cover
Upper cover
Assembling Note: Route the charge harness as shown below.
Top charge cover
(Rear)
Charge harness
Upper cover
Hook
Cable guides
Viewed from the bottom
6-40
Charge harness
Charge PCB
Lock arm
(6_36_2)
Charge PCB
(6_36_3)
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