Hitachi UX Twin Nozzle - Page 261

6-19
6.2.9 Makeup Low Fault
(*1): When you replace EZJ133 board, refer to
[Replacement procedures of EZJ133 board]
in “3.3.1 EZJ133 board (MPU board)”.
[Caution]
Be sure to check that there is no wrong
connection of harnesses by referring to
[Connector numbers and Identifying method of
harnesses] in “3.3.20 Electrical Connection
Diagram”.
Makeup Low Fault
Open the maintenance cover.
Is the makeup
reservoir charged
with the makeup?
Install the new cartridge
bottle, and replenishing
the makeup.
Can the abnormality
be cleared by pressing
the Clear key?
END
Is the sensor connector
disconnected?
(See the overall wiring
diagram.)
Turn OFF the power.
Yes
No
No
Yes
Yes
Connect the sensor
connector.
No
Is the fault cleared by
power-on reset?
Is the connection harness
conducting?
Replace the connection harness.
END
Yes
Yes
No
OK
NG
END
Replace the sensor.
Replace the EZJ133 board. *1
Is the fault cleared by
power-on reset?
No
Disconnect the connectors, then
reconnect them (6 connectors).
Connect the connector.
Is CN13 or CN22 of the EZJ133
board, CN1, CN2, CN4, or CN5
of or EZJ138 board disconnected?
Yes
No