Hitachi UX Twin Nozzle Service Manual page 264

6.2.11a Multi DC Power Supply1 Fan Fault
Multi DC Power
Supply1 Fan Fault
Is the multiple power supply1
fan running?
Yes
Replace the EZJ133 board. *1
Is the problem fixed?
Replace the multiple power supply1
No
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".
6-22
Is the EZJ133 CN2 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