Brother MFC640CW - Page 79

3-41 Confidential
MFC640CW/DCP340CW
Main PCB
ROM MODEM
SDRAM
MJ PCB
2-pin (MJ-line)
2-pin (MJ 1)
2-pin
Speaker
Control panel PCB
6-pin
Scanner open sensor
Carriage PCB
CR encoder sensor
Head thermistor
17-pin (Head 1)
19-pin (Head 2)
Head/
carriage
unit
Paper width sensor
2-pin
Carriage motor
Paper feed motor
12-pin
CIS unit
4-pin
CIS motor
SCANNING
INK JET PRINTING & PAPER FEEDING
6-pin
Hook switch PCB
Media 1
(SM/XD/SD/MS
card)
Media 2
(CF card)
Line
External telephone
Ink refill ASSY
9-pin
EEPROM
DC motor driver
Stepping motor driver
Ink cartridge PCB
Ink cartridge
sensors
Purge cam switch
Maintenance unit
10-pin
ADF motor
ADF unit
Document rear sensor
Stepping motor driver
7-pin
5-pin
PF sensor PCB
PF encoder sensor
Registration sensor
7-pin
2-pin
2-pin
*
1
4-pin
Backup battery
*
1
16MB
SDAA
Main
ASIC
MEDIA
GA
8MB
Document front sensor
*
1
*
1
*
1
*
1
(DCP340CW)
(MFC640CW)
9-pin
Mic
*
1
*
1
MFC640CW
4-pin
LAN
PC
LAN I/F
USB
Power supply
PCB
AC line
WLAN PCB
WLAN
6-pin