Brother DCP-L8400CDN Service Manual page 232

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(3) Remove the two Screw bind M3x8 screws and remove the ADF earth harness and
Document scanner FG harness from the Main PCB plate.
(4) Disconnect the two Connectors (CN39 and CN41) from the Main PCB ASSY and release
the wiring of the Main PCB insulation sheet.
Main PCB insulation sheet
ADF earth harness
Screw bind M3x8
Main PCB plate
(5) Disconnect the four Connectors (CN20, CN27, CN32 and CN33) and two Flat cables
(CN37 and CN38) from the Main PCB ASSY.
Main PCB ASSY
CN39
CN41
Fig. 3-65
CN33
CN38
CN37
CN32
CN41
CN39
CN42
CN43
CN44
CN46
CN47
CN40
CN45 CN30 CN31
Fig. 3-66
3-68
Document scanner
FG harness
Screw bind M3x8
Main PCB ASSY
CN28
CN20
CN27
CN3
CN2
CN4
CN5
CN6
CN49
CN7
CN21
CN8
CN10
CN12
CN11
CN9
CN22
CN13
CN14
CN15
CN26
CN16
CN17
CN18
CN19
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