Main Pcb Assy; Fan Motor / Fan Motor 60 - Brother HL-1850 Service Manual

CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY
3.17

Main PCB ASSY

(1) Remove the two pan M3x6 screws and the six cup S tite 3x6 screws from the main PCB
ASSY.
(2) Disconnect the four connectors for the low-voltage power supply, engine PCB, the panel
PCB and the scanner unit.
(3) Remove the main PCB ASSY from the frame.
3.18

Fan Motor / Fan Motor 60

NOTE:
Be sure to disconnect the fan motor connector on the fan relay PCB before removing the fan
motor and fan motor 60.
(1) Release the two hooks and remove the fan motor from the fan duct by pulling slightly
forward.
(2) Remove the fan motor 60 from the main frame by pulling upward.
NOTE:
Main PCB ASSY
Fig. 4-83
(hook)
Fan duct
(hook)
Fig. 4-84
Screw, pan M3x6
Screw, cup S tite M3x6
Screw, cup S tite M3x6
Main frame
Fan motor
Fan motor 60
4-54