Brother International IntelliFax-3550 Service Manual - Page 55

Top Cover, Handset Mount and Hook Switch PCB, Side Cover

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1.1 Top Cover (1) Open the top cover. (2) Push the arm of the top cover outwards with your thumb to unhook it from the main cover. (3) Turn the top cover upright and slide it to the rear. Top cover Top cover turned upright Arm Main cover 1.2 Handset Mount and Hook Switch PCB (for handset-equipped versions) Side Cover (for non-handset versions) (1) Remove the two screws from the handset mount* or the side cover.** (2) Twist the handset mount* or the side cover** so that it tilts over to the left and its upper end works out of the bosses provided on the main cover. (3) To remove the hook switch PCB*, disconnect the hook switch harness* and remove the screw. *For handset-equipped versions Bosses **For non-handset versions (Non-handset versions) (Handset-equipped versions) Side cover** Hook switch* Handset mount* Hook switch sensor* Hook switch PCB* Hook switch harness* IV - 5 Main cover

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IV –
5
1.1
Top Cover
(1)
Open the top cover.
(2)
Push the arm of the top cover outwards with your thumb to unhook it from the main
cover.
(3)
Turn the top cover upright and slide it to the rear.
Arm
Main cover
Top cover
turned upright
Top cover
Bosses
Main cover
(Non-handset versions)
Side cover**
Hook switch PCB*
Hook switch sensor*
Hook switch harness*
(Handset-equipped
versions)
Hook
switch*
Handset
mount*
1.2
Handset Mount and Hook Switch PCB
(for handset-equipped versions)
Side Cover
(for non-handset versions)
(1)
Remove the two screws from the handset mount* or the side cover.**
(2)
Twist the handset mount* or the side cover** so that it tilts over to the left and its upper
end works out of the bosses provided on the main cover.
(3)
To remove the hook switch PCB*, disconnect the hook switch harness* and remove the
screw.
*For handset-equipped versions
**For non-handset versions