Brother DCP-6690CW, Service Manual, Page: 363 / 506

9-17 Confidential
(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 key on the control panel).
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 Section 9.1 .
(8) Perform the operational check of the LCD on the previous page.
LCD unit
LCD flat cable