Phaser 6180MFP Multifunction Printer Service Manual 4-109
General Troubleshooting
High Pitched Noise
There is high pitch sound coming from the printer.
Troubleshooting Reference Table
Applicable Parts Wiring and Plug/Jack Map References
■ MCU Board, PL9.2.13
■ LVPS, PL9.2.14
■ “Map 4 - LVPS and MCU Board” on
page 10-13
■ “DC Power Supply” on page 10-24
Troubleshooting Procedure Table
Step Actions and Questions Yes No
1 1.Check for abnormal noise.
2.Is there abnormal noise from the motors
when turning On the printer?
Go to step 2. Go to step 4.
2 1.Turn the printer power Off.
2.Disconnect the power cord and wait for
one minute.
3.Reseat the LVPS connectors.
4.Turn the printer power On. Is the printer
working?
Complete. Go to step 3.
3 1.Check the MCU Board for correct
installation. Reseat the MCU Board
(page 8-88).
2.Is the printer working?
Complete. Replace the
MCU Board
(page 8-88).
4 1.Connect the printer power cord to
another electrical outlet.
2.Turn the printer power On. Is the printer
working?
Complete. Go to step 5.
5 1.Turn the printer power Off.
2.Check the power cord connection.
Reconnect the printer power cord.
3.Is the printer working?
Complete. Go to step 6.
6 1.Turn the printer power Off.
2.Disconnect the power cord and wait for
one minute.
3.Reseat the LVPS connectors.
4.Turn the printer power On. Is the printer
working?
Complete. Go to step 7.
7 1.Turn the printer power Off.
2.Disconnect the printer power cord and
wait for one minute.
3.Reconnect the power cord.
4.Turn the printer power On. Is the printer
working?
Complete. Replace the
LVPS
(page 8-83).
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