Disassembly Flow - Brother HLL3290CDW Service Manual

8.

DISASSEMBLY FLOW

9.2 T1 separation 9.34 Roller holder
pad ASSY ASSY
H: 2 / S: 0 H: 0 / S: 0
9.30 Cartridge
9.28 WLAN PCB
sensor relay flat
cable
H: 4 / S: 0
H: 1 / S: 1
9.31 Develop release
9.29 Main PCB
clutch
H: 0 / S: 3
H: 5 / S: 1
9.32 T1 pick-up
9.31 Process drive
clutch / Registration
unit
clutch
H: 1 / S: 10
H: 2 / S: 0
9.32 Paper feed 9.12 Document cover
drive unit ASSY
H: 3 / S: 5 H: 2 / S: 0
9.25 Manual feed
9.10 Document
cover ASSY / USB
scanner unit
host PCB
H: 0 / S: 7
H: 2 / S: 4
9.14 Panel flat cable /
9.35 Paper feed unit
First side CIS unit / First
side CIS flat cable
H: 2 / S: 4
H: 1 / S: 7
9.18 Speaker unit
H: 0 / S: 2
9.21 LED ASSY
(Y/M/C/K) / LED ASSY
flat cable (Y/M/C/K)
H: 7 / S: 0
9.6 Cord hook
H: 0 / S: 0
9.8 Side cover R
H: 10 / S: 2
9.7 Side cover L
H: 10 / S: 2
9.11.1 ADF unit 9.9 Back cover lower
H: 1 / S: 1 H: 3 / S: 0
9.11.2 Document
9.13 Panel unit
separation roller
H: 5 / S: 4 ASSY
H: 3 / S: 0
9.13.1 Key PCB / 9.11.3 ADF
Panel PCB / Touch separation holder
panel ASSY / LCD ASSY
H: 0 / S: 11 H: 0 / S: 1
9.11.4 Second side
9.13.2 Panel PCB /
CIS unit / Second
LCD ASSY
side CIS flat cable
H: 5 / S: 0
H: 4 / S: 11
9.11.5 Document
detection sensor PCB /
Document scanning
position sensor PCB
H: 2 / S: 0
9.15 Modem flat
cable / Modem PCB
H: 0 / S: 8
9.16 Joint cover
ASSY
H: 4 / S: 2
9.17 LED unit 9.19 NFC PCB
H: 1 / S: 14 H: 11 / S: 1
9.20 LED control flat
cable / LED control
PCB
H: 0 / S: 5
3-26
Hook (H) / Screw (S) (pcs)
9.26 High-voltage
9.27 Fan
power supply PCB
H: 2 / S: 0
H: 11 / S: 5
9.26 Develop release
sensor PCB
H: 1 / S: 0
9.22 MP paper guide
9.33 Eject sensor
ASSY / MP cover
PCB
ASSY / USB host PCB
H: 1 / S: 0
H: 2 / S: 9
9.24 MP unit 9.37 Duplex tray
H: 4 / S: 6 H: 0 / S: 3
9.38 Low-voltage
power supply PCB
H: 0 / S: 15
9.36 Paper eject
ASSY
H: 0 / S: 3
9.3 Back cover
H: 0 / S: 0
9.4 Rear flapper sub
ASSY
H: 0 / S: 0
9.5 Fuser cover
ASSY / Fuser unit
H: 0 / S: 4
9.39 Registration mark
sensor L PCB /
Registration mark
sensor R PCB
H: 1 / S: 1
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