Brother MFC-9420CN Service Manual page 119

(5) Turn the panel unit upside down.
(6) Disconnect the connector of the backlight.
Backlight connector
(7) Release the three hooks "C" to remove the panel PCB from the panel unit.
Hook "C"
Pin
Panel unit
Fig. 5-49
Panel PCB
Hook "C"
Hook
Fig. 5-50
5-32
Hook "C"
Hook
LCD harness
Pin
Panel unit
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