Brother MFC-J3520 Service Manual page 365

(3) Turn up the Main PCB ASSY and insert the tips of the leads of a new Condenser into
the through hole in a way that the tips of the ▲ marks printed on the Condenser comes
to the right side (outside of the Main PCB ASSY) when viewing from the front of the
machine.
(4) Turn over the Main PCB ASSY and solder the leads of the Condenser.
(5) Turn up the Main PCB ASSY and mount it on to the machine.
A4.3 TEST AFTER CONDENSER IS REPLACED
After replacing the condenser, check that the machine works properly in accordance with
the procedures below.
Note: Perform the following steps sequentially. If the power cord is disconnected or the
operation is suspended for 1 minute or more, perform the procedures from the
beginning.
(1) Plug the power cord of the machine to the electrical outlet, and check that the LCD is
displayed.
(2) Hold the power switch on the control panel for 3 seconds or more and check that "All
functions will be disabled" is displayed on the LCD.
(3) Check that the LCD disappears approx. 10 seconds later.
(4) Wait approx. 10 seconds after the LCD disappears.
(5) Open the scanner cover.
(6) Press the power switch on the control panel and check that "Please close the scanner
cover." is displayed on the LCD.
Condenser
Main PCB ASSY
Through hole
Fig. App 4-2
App. 4-3 Confidential