Engine Pcb - Brother MFC8420 Service Manual

CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY
3.25

Engine PCB

(1) Disconnect the connectors.
Fan motor 60 unit connector
Polygon motor connector
Fan motor 60 connector
Engine PCB ASSY
Cassette sensor PCB connector
(2) Remove the two bind B M4x12 Taptite screws, and then remove the engine PCB ASSY.
Engine PCB ASSY
LT connector
LVPS connector
HVPS connector
Fig. 4-119
Taptite, bind B M4x12
Fig. 4-120
4-68
Toner sensor
(light reception) connector
Document cover sensor connector
Thermistor relay PCB connector
Main motor connector
Main PCB connector
Toner sensor
(light emission) connector
MP tray PCB connector
Reversing release solenoid connector
FR solenoid connector
PF solenoid connector
DX sensor connector