Brother mfc8440 - Main PCB

MFC-8440/8840D/8840DN, DCP-8040/8045D/8045DN
SERVICE MANUAL
4-65
3.22 Main PCB
(1) Disconnect the LD harness 5P.
NOTE:
• After disconnecting flat cable(s), check that each cable is not damaged at its end or
short-circuited.
• When connecting flat cable(s), do not insert them at an angle. After insertion, check
that the cables are not at an angle.
(2) Disconnect the four connectors.
Fig. 4-116
Main PCB ASSY
LVPS connector
Engine connector
LVPS connector
Thermistor connector
LD harness 5P