Brother MFC4820C Service Manual page 110

(3) Remove the six screws from the underside of the scanner unit.
(4) Lift up the control panel ASSY and disconnect the panel-main harness from the control panel
PCB.
This core is proviede for
European model only
CIS travel motor harness
Panel-main harness
CIS harness
Scanner unit
Disassembly of the control panel ASSY
(5) Remove the seven screws from the control panel PCB.
(6) Turn the scanner open sensor actuator and remove it from the control panel.
(7) Remove the screw from the LED board support and separate the LED board* and diffusion
film* from the LCD.
(8) Unlock the LCD connector on the control panel PCB and disconnect the LCD flat cable.
Scanner open
sensor actuator
Diffusion film*
LED board and its support*
Control panel PCB L
Opening
Control panel
LCD
6-25
Scanner open sensor actuator
Control panel ASSY
Taptite, bind B M3x8
Panel-main harness
Taptite, cup B M3x6
Scanner/ink slot
cover open sensor
*Not provided on the MFC4420C.
Control panel PCB S