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Lcd Display Is Not Normal - Brother XR9000 Service Manual

Computerized sewing machine with low-end computer 3 series.
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Table of Contents
Failure Investigation
for Electronic Parts

LCD display is not normal.

Is the FFC of the LCD correctly connected
to the operation PCB assy. (CN3)?
Are the main PCB assy. and the operation
PCB assy. correctly connected?
Replace the LCD display.
(single light guide assy.)
Replace the operation PCB assy.
Replace the main PCB assy.
LCD display is not normal
Y
Y
or
or
N
Connect it properly.
N
Connect it properly.
5 - 15

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