Brother CS5055PRW - LCD Is Not Normal

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Electronic Parts
Failure Investigation
for Electronic Parts
LCD is not normal
LCD is not normal.
Y
N
Connect it correctly.
Replace the LCD.
(single light guide assy.)
or
Replace the operation PCB assy.
or
Replace the main PCB assy.
Is the FPC of the LCD connected to the
operation PCB assy. correctly?
Y
N
Connect it correctly.
Are the main PCB assy. and the operation
PCB assy. connected correctly?