Brother ADS-3000N Service Manual page 6

4.7.1 Machine does not turn ON .................................................................................. 2-25
4.7.2 Cannot update firmware ...................................................................................... 2-25
4.7.3 Cannot save data in USB flash memory ............................................................. 2-25
CHAPTER 3 DISASSEMBLY/REASSEMBLY
1. SAFETY PRECAUTIONS............................................................................................................. 3-1
2. PACKING ..................................................................................................................................... 3-2
3. SCREW CATALOGUE................................................................................................................. 3-3
4. SCREW TORQUE LIST ............................................................................................................... 3-4
5. LUBRICATION ............................................................................................................................. 3-5
6. OVERVIEW OF GEARS............................................................................................................... 3-6
7. HARNESS ROUTING.................................................................................................................. 3-7
8. DISASSEMBLY FLOW CHART................................................................................................. 3-10
9. DISASSEMBLY PROCEDURE .................................................................................................. 3-11
9.1 Reverse roller / Pick up roller............................................................................................. 3-12
9.2 Bottom cover ASSY / Exit stopper ..................................................................................... 3-14
9.3 Back cover ......................................................................................................................... 3-15
9.4 Side cover L/R ................................................................................................................... 3-17
9.5 USB host PCB ASSY......................................................................................................... 3-19
9.6 Main PCB ASSY ................................................................................................................ 3-20
9.7 Front cover L/R .................................................................................................................. 3-27
9.8 Front cover ASSY .............................................................................................................. 3-29
9.9 Panel unit / Panel flat cable / Key PCB ASSY / Rubber key.............................................. 3-30
9.10 Second side CIS unit / Second side CIS flat cable / Flat cable support film...................... 3-32
9.11 Eject jam sensor PCB........................................................................................................ 3-34
9.12 Document scanning position sensor PCB ......................................................................... 3-35
9.13 Paper feed jam sensor PCB / Multi feeding sensor PCB ASSY (Sent) ............................. 3-38
9.14 Document detection sensor PCB ASSY ............................................................................ 3-40
9.15 First side CIS unit / First side CIS flat cable ...................................................................... 3-41
9.16 Front cover sensor............................................................................................................. 3-43
9.17 Feed belt / Feed motor ...................................................................................................... 3-44
9.18 Paper feed belt / Paper feed motor.................................................................................... 3-46
9.19 Multi feeding sensor PCB ASSY (Receive) ....................................................................... 3-48
CHAPTER 4 ADJUSTING AND UPDATING SETTINGS
AS REQUIRED AFTER PARTS REPLACEMENT
1. IF YOU REPLACE THE MAIN PCB ASSY .................................................................................. 4-1
1.1 Installing Firmware............................................................................................................... 4-2
1.1.1 Checking firmware version .................................................................................... 4-2
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