Brother MFC640CW Service Manual page 133

MFC820CW
Speaker harness (2-pin)
MJ-main harness 1 (2-pin)
Carriage motor harness (2-pin)
PF motor/sensor PCB
harness (7-pin)
(Center panel-main harness)
(5-pin)
(Scanner motor harness)
(4-pin)
(ADF harness )
(10-pin)
Power supply harness
(4-pin)
WLAN PCB harness
(6) Remove four screws (three "d" and one "e" screws) from the main PCB, then lift up the PCB.
(7) Remove screw "c" from the main PCB shield frame.
(8) Remove the main PCB film and shield frame.
MJ-line harness (2-pin)
Head flat cable 1 (17-pin)
Main PCB
Media 2
Media 1
(Compact Flash)
(SM/XD/SD/MS card)
(Front)
5-47
Head flat cable 2 (19-pin)
(CIS flat cable) (12-pin)
(USB)
(LAN)
(Battery harness)
(4-pin)
(Ink cartridge/purge
switch harness)
(9-pin)
(Color LCD flat cable)
(18-pin)
NOTE: Screw tightening orde r
First tighten screws "d" and "e" and
then screw "c."
"c": Screw, pan (s/p washer) M3x8
"d": Taptite, cup B M3x8
"e": Taptite, cup S M3x6
Confidential