Control Electronics; Components - Brother MFC5890CN Service Manual

3.3

CONTROL ELECTRONICS

3.3.1 Components

The following illustration shows the hardware components. The corresponding wiring diagrams
appear in Appendix
WLAN*
*
WLAN PCB
5 wires used in
6-wire connector
housing
Main
ASIC
ROM MODEM
12MB
EEPROM
Media 1
PictBridge
(xD/SD/MS
card)
USB
- Digital camera
- USB flash memory drive
5.
LAN
PC
Backup battery
LAN I/F USB
5-wire
SDAA
SDRAM
64MB
11-wire (Head 3)
13-wire (Head 1)
12-wire (Head 2)
DC motor driver
Main PCB
DC motor driver
DC motor driver
Stepping motor driver
Stepping motor driver
Media 2
(CF card)
Speaker
Power supply
PCB
2-wire
5-wire
2-wire
MJ PCB
2-wire
5-wire
Control panel PCB
28-wire Color LCD
INK JET PRINTING & PAPER FEEDING
Carriage PCB
CR encoder sensor
Paper width sensor
Head thermistor
2-wire
Carriage motor
Ink refill ASSY
Ink cartridge detection sensor PCB
7-wire
Ink cartridge detection sensors
Ink empty sensor PCB
Ink empty sensors
9-wire
Casing internal temperature thermistor
Maintenance unit
2-wire Purge cam switch
2-wire
ASF motor unit
4-wire ASF encoder sensor
2-wire
ASF motor
PF encoder PCB
4-wire
PF encoder sensor
7-wire
Registration sensor PCB
Registration sensor
3-wire
2-wire
Paper feed motor
SCANNING
12-wire
CIS unit
4-wire
CIS motor
ADF unit
Document sensor PCB
Document front sensor
5-wire
Document rear sensor
4-wire
ADF motor
3-44
AC line
Line
External telephone
Scanner cover sensor
Ink cartridge cover sensor
Head/
carriage
unit
Cap lift cam switch
(BlockDiagram_BHL9_A3)
* For wireless LAN-enabled model.
Confidential