Brother International MFC-P2000 Service Manual - Page 97

M-3 Main motor unrotated Possible cause Failure of connector Main motor (M1) Main PCB Sub motor unrotated Step 1 2 3 4 Check Is the connection of connector P9 on the panel sensor PCB correct? Disconnect connector P9 from the panel sensor PCB. Measure the resistance between the connector pins of the main motor by using a circuit tester. Do the measured resistances satisfy the prescribed values in the table below? P9-5 and P9-6 Approx.4.5 P9-7 and P9-8 Approx.4.5 Is the problem solved by replacing the main PCB? Disconnect connector P9 from the panel sensor PCB. Measure the resistance between the connector pins of the main motor by using a circuit tester. Do the measured resistances satisfy the prescribed values in the table below? P9-1 and P9-2 Approx.9.1 P9-3 and P9-4 Approx.9.1 Result No No Yes No Remedy Reconnect the connector. Replace the main motor. Replace the main PCB. Replace the sub motor. M-4 No paper supplied Possible cause Connection failure Panel sensor PCB circuit Paper pick-up clutch solenoid MP tray unit failure Main PCB Step 1 2 3 4 Check Is the contact of connector P3 on the panel sensor PCB good? Set paper in the paper feeder and make a test print by pressing the switch on the printer control panel. Does the voltage between pins 2 (SOLENOID) and 1 (24V) of the P3 connector on the panel sensor PCB change from approx. 24V DC to 0V within the specified time? Is the surface of the separation pad or the pick up roller stained or worn out? Is the problem solved by replacing the main PCB? Result No No Yes Yes Yes Remedy Reconnect the connector. Replace the panel sensor PCB. Replace the paper pick-up solenoid. Clean the surface or replace. Replace the main PCB. IV-28