Brother DCP6690CW Service Manual page 229

(3) For MFC: Disconnect the main-MJ (EXT) harness from the main PCB and release it from
the cable guides provided on the SDAA enclosure.
(4) For MFC: Unlatch the SDAA enclosure by pinching its right and left sides and remove it
from the main PCB.
(5) For MFC: Disconnect the main-MJ (LINE) harness (2-wire, yellow) from the main PCB.
(6) Remove two "c" screws from the main PCB, then lift up the PCB.
(7) Remove two screws ("d" and "e") from the main PCB shield frame, then lift up the shield
frame. (The screw "d" also secures the MJ/PS shield unit.)
SDAA enclosure*
Main-MJ (EXT)
harness*
Main-MJ (LINE)
harness*
Carriage motor
harness
ASF motor
harness
Paper feed motor
harness
PF encoder/registration
sensor harness
"c"
"e"
"d"
Power supply harness
6-48
"c"
Main PCB
Main PCB shield frame
ASF encoder harness
Purge cam switch harness
Cap lift cam switch harness
Ink cartridge detection
sensor harness
"c" and "e": Taptite, cup B M3x10
"d": Screw, pan (s/p washer) M3x8
*
For MFC only
Ink empty sensor
harness
(6_40)
Confidential