Main Pcb - Brother FAX 2800 - B/W Laser - Fax Service Manual

4.1.13 Main PCB

(1) Disconnect the following harnesses and flat cable from the main PCB:
• NCU harness
• Low-voltage power harness
• Main motor harness
• High-voltage power flat cable
• Cover/registration sensor & fan harness
• Solenoid 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
upper one of these screws has been removed to release the FG wire when you have removed
the top cover in Subsection 4.1.6.)
Reassembling Notes
• Be sure to route the harnesses and flat cable as illustrated in Subsection 4.1.26, "Harness
routing A."
• After you replace the main PCB, be sure to follow the flowchart given on the next page.
"a" and "c": Taptite, cup S M3x6
"b":
4 -2 8
Taptite, pan S M3x12