Circuit Boards (Pwbs); Motor Units - Brother HL-3450CN Service Manual

2.2

Circuit Boards (PWBs)

Panel PWB
4.2.2
High-voltage power
supply PCB
4.3.3
Video controller
PCB
4.3.1
Low-voltage
power supply
4.3.8
2.3

Motor Units

(Cooling fan (EX))
Control fan
(Cooling fan (PS))
4.2.8
PCB
Fig. 7-3
Ozone fan
(Cooling fan (OZ))
4.1.9
Fuser fan
4.4.2
Fig. 7-4
Erase lamp
4.2.11
Main motor (MM)
4.1.3
7-7
HL-3450CN SERVICE MANUAL
IOD2 PWB
4.1.5
IOD1 PWB
4.2.7
MCTL PWB
4.3.2
Developer drive motor (DM)
4.1.4
Scanner motor
4.5.3