Brother NV4000D Service Manual page 330

Failure Investigation for Electronic Parts The power does not come on
Y
5 - 4
From previous page
Is the backlight turned on?
N
Is the inverter lead wire free from
damage and correctly connected?
Y
Replace the inverter (D6).
Is FFC (Flexible flat cable) for the
LCD free from damage
correctly connected to the panel
PCB (CN10) and LCD module?
Y
Replace the LCD module.
N
Connect the inverter lead
wire correctly or replace it.
N
and Connect the FFC for the
LCD correctly or replace it.