Troubleshooting Of The Led Assy; Led Assy Failure - Brother MFC-9130CW Service Manual

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Troubleshooting of the LED ASSY

- Turn ON the power, open the joint cover ASSY and back cover, and leave them as they are

for a while.

- Clean the LED ASSY.

Flat cable connection failure

of the LED ASSY

Harness connection failure of

the LED control PCB

Flat cable failure of LED

LED ASSY failure

LED control PCB failure

Main PCB failure

Check the flat cable connection of the LED

ASSY and reconnect it.

Check the harness connection of the LED

control PCB ASSY and reconnect it.

Replace the flat cable of the LED ASSY.

Replace the LED ASSY.

Replace the LED control PCB ASSY.

Replace the main PCB ASSY.

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