Others Problems; The Machine Is Not Turned On; Main Fan Not Rotate; Main Motor Failure - Brother MFC-9130CW Service Manual

4.14 Others Problems

4.14.1 The machine is not turned ON

<User Check>
- Properly insert the AC cord.
Step
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7

4.14.2 Main fan not rotate

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7

4.14.3 Main motor failure

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4
Cause
Harness connection failure of
the panel PCB
Harness connection failure of
the LCD
Harness connection failure of
the low-voltage power supply
PCB
Panel PCB failure
LCD failure
Low-voltage power supply
PCB failure
Main PCB failure
Cause
Harness connection failure of
the main fan
Harness connection failure of
the high-voltage power supply
PCB
Harness connection failure of
the low-voltage power supply
PCB
Main fan failure
High-voltage power supply
PCB failure
Low-voltage power supply
PCB failure
Main PCB failure
Cause
Flat cable connection failure
of the main motor
Main motor failure
Low-voltage power supply
PCB failure
Main PCB failure
Check the panel PCB harness connection
and reconnect it.
Check the LCD harness connection and
reconnect it.
Check the low-voltage power supply PCB
harness connection and reconnect it.
Replace the Panel PCB ASSY.
Replace the LCD.
Replace the low-voltage power supply PCB
ASSY.
Replace the main PCB ASSY.
Check the harness connection of the main
fan and reconnect it.
Check the high-voltage power supply PCB
harness connection and reconnect it.
Check the harness connection of the
low-voltage power supply PCB and
reconnect it.
Replace the main fan.
Replace the high-voltage power supply PCB
ASSY.
Replace the low-voltage power supply PCB
ASSY.
Replace the main PCB ASSY.
Check the flat cable connection of the main
motor and reconnect it.
Replace the process drive unit.
Replace the low-voltage power supply PCB
ASSY.
Replace the main PCB ASSY.
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Remedy
Remedy
Remedy
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