Hitachi UX Twin Nozzle Service Manual page 265

6.2.11b Multi DC Power Supply2 Fan Fault
Multi DC Power
Supply2 Fan Fault
Is the multiple power supply2
fan running?
Replace the EZJ133 board. *1
Is the problem fixed?
Replace the multiple power supply2
No
Yes
Yes
END
No
(*1): When you replace EZJ133 board, refer to
EZJ133 board]
[Caution]
Be sure to check that there is no wrong connection of harnesses by
[Connector numbers and Identifying method of harnesses]
referring to
"3.3.20 Electrical Connection Diagram".
6-23
Is the EZJ133 CN28 connector
or multiple power supply CN4
connector disconnected?
No
Connect the connector.
[Replacement procedures of
in "3.3.1 EZJ133 board (MPU board)".
Yes
in