Engine Control Board Pu - Brother MFC-9420CN Service Manual

5.1.47 Engine Control Board PU

(1) Remove the setscrew (ST3x6, 3 pieces) of the shield cover (A).
(2) Remove the shield cover (A).
Shield cover (A)
(3) Disconnect all the connectors connecting to the engine controller board PU.
(4) Remove the setscrew (ST3x6, 5 pieces) of the engine controller board PU.
(5) Remove the engine control board PU from the frame.
ST3x6
Engine controller board PU
ST3x6
Frame
Fig. 5-93
Fig. 5-94
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