7.7.1100 MaMain in PCPCB B AASSSSYY
(1)(1) RemovRemove the bote the bottom of thtom of the main PCe main PCB insulB insulation shation sheet and peet and peel it.eel it.
(2)(2) DiscoDisconnect alnnect all harnessl harnesses and flaes and flat cables frt cables from the maiom the main PCB ASSYn PCB ASSY..
Fig. 2-30Fig. 2-30
Harness routing: Refer toHarness routing: Refer to ““1.1.Frame R / main PCB ASSY / low voltage power supply PCB unitFrame R / main PCB ASSY / low voltage power supply PCB unit
/ fuser unit (DCP-15** series without fan, MFC-18** series without fan)/ fuser unit (DCP-15** series without fan, MFC-18** series without fan)””,, ““22..Frame R / mainFrame R / main
PCB ASSY / low voltage power supply PCB unit / fuser unit (DCP-15** series with fan, MFC-PCB ASSY / low voltage power supply PCB unit / fuser unit (DCP-15** series with fan, MFC-
18** series with fan)18** series with fan)””andand ““33.. Frame R / main PCB ASSY / low voltage power supply PFrame R / main PCB ASSY / low voltage power supply PCB unitCB unit
/ fuser unit (DCP-16** series, MFC-19** series)/ fuser unit (DCP-16** series, MFC-19** series)””..
Note:Note:
•• After discAfter disconnectonnecting the flat cableing the flat cables, check that each cabls, check that each cable is not damaged at its end ore is not damaged at its end or
short-circuited. When connecting the flat cables, do not insert them at an angle. Aftershort-circuited. When connecting the flat cables, do not insert them at an angle. After
insertion, check that the cables are not at an angle.insertion, check that the cables are not at an angle.
Main PCB insulation sheetMain PCB insulation sheet
Polygon motor harnessPolygon motor harness
Low voltage PCB harnessLow voltage PCB harness
Motor encoder PCB flat cableMotor encoder PCB flat cable
Laser unit flat cableLaser unit flat cable
Paper feed/paper printingPaper feed/paper printing
position sensor PCB harnessposition sensor PCB harness
Center thermistor harnessCenter thermistor harness
Hook harnessHook harness
(only for models with handset)(only for models with handset)
Side thermistor harnessSide thermistor harness
(DCP-16** series,(DCP-16** series,
MFC-19** series only)MFC-19** series only)
Main PCB ASSYMain PCB ASSY
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