Brother MFC-J6510DW Service Manual page 213

Speaker spring
Speaker
Cable guide
Assembling Note: When setting the backup battery, route the battery harness through the cable
guides on the upper cover as shown above.
(2) Disconnect the speaker harness from the main PCB and release it from the cable guides
provided on the upper cover.
(3) Remove the speaker spring (wire spring) and take the speaker out of the pocket provided on
the upper cover.
Speaker spring
Speaker
Upper cover
Main PCB
3-88
Cable guides
(3_056)
Backup battery
Upper cover
(3_054_1)
Confidential