Brother MFC990CW Service Manual page 221

Models with monochrome LCD
(1) Place the control panel ASSY upside down.
(2) Pull the three "x" latches and remove the control panel PCB.
NOTE: Do not pull the control panel PCB away from the control panel ASSY since it is
connected to the monochrome LCD mounted on the control panel base with a short panel-
LCD flat cable.
(3) Disconnect the panel-LCD flat cable from the control panel PCB after releasing the
connector lock.
NOTE: After disconnecting the flat cable(s), check that each cable is not damaged at its
end or short-circuited. When connecting the flat cable(s), do not insert it at an angle. After
insertion, check again that it is not at an angle.
(4) Remove the rubber keypads (and keys depending upon the model).
(5) Lightly press the two lock arms as shown below and remove the monochrome LCD.
Panel-LCD flat cable
Control Panel PCB
Monochrome LCD
Rubber keypad
Assembling Notes:
• Before setting the LCD back into place, wipe fingerprints or dust off the LCD surface and
control panel window with a soft cloth.
• A new LCD is covered with a protection sheet. Before setting it, remove the protection
sheet.
Panel-main harness
Key
Latch "x"
Latch "x"
Control panel base
Lock arm
Media module cover
Media module cover
6-37
Rubber keypads
Control panel base
Latch "x"
Lock arm
Monochrome LCD
(6_33_250C)
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