Main Pcb - Brother MFC6800 Service Manual

4.1.14 Main PCB

(1) Disconnect the following harnesses and flat cable from the main PCB:
• NCU harness
• Low-voltage power harness
• Main motor harness
• Relay (ADF) harness
• Relay (CCD/PANEL) harness
• High-voltage power flat cable
• Main-fan harness
• Solenoid harness
• Relay (CCD/SEN) harness
• Speaker harness
(2) Remove two screws "a" from the main shield.
(3) Remove two screws "b" from the parallel interface connector.
(4) Remove two screws "c" from the main PCB and then take it off from the PCB support. The
grounding wire will be released.
"a" and "c": Taptite, cup S M3x6
"b":
4 -4 3
Taptite, pan S M3x12