Brother DCP6690CW Service Manual page 363

(4) Press the Stop/Exit key in any process of the above display cycle. The machine returns to
the initial stage of the maintenance mode.
Specifying the LCD type (if the 3.3-inch LCD unit or main PCB has been replaced)
If the 3.3-inch LCD unit or main PCB has been replaced, specify the LCD type using the
procedure below.
(1) Press the 1 and 2 keys in this order in the initial stage of the maintenance mode.
(2) Press the key (Scan key for models without
The LCD shows the screen given below.
(3) Press the 3 key.
The LCD shows "LCD TYPE SET."
(4) If 1 (enclosed by a square ) is printed at the location shown below, press the 1 key; if not,
press the 0 key.
(5) Press the Stop/Exit key to return to the initial stage of the maintenance mode.
(6) Press the 9 key twice to exit from the maintenance mode and switch to standby. The new
setting goes into effect.
(7) Enter the maintenance mode again referring to
(8) Perform the operational check of the LCD on the previous page.
LCD flat cable
key on the control panel).
Section 9.1.
LCD unit
9-17
Confidential