Hitachi UX Twin Nozzle Service Manual page 310

6.4.6 Battery Low M
Battery Low M
Is the EZJ133 board
CN14 connector
disconnected or in poor
contact?
No
Replace the battery of
EZJ133 board.*1
Does the fault recur?
No
Replace the EZJ133 board.*2
Resume the
operation.
6.4.7 Calendar Content Inaccurate
Calendar Content
Inaccurate
Is the EZJ128 board CN8
connector or EZJ133 board
CN14 connector disconnected
or in poor contact?
No
Replace the batteries in the
controller/engine section.
Does the fault recur?
No
Replace the EZJ128 board.*1
Does the fault recur?
No
Replace the EZJ133 board.*2
Resume the
operation.
Yes
Remove the connector once and
reconnect it
Yes
Yes
Remove the connector once and
reconnect it
Yes
Yes
6-68
(*1): When you replace the battery of EZJ133
board, refer to【Replacement procedures of
battery】in "3.3.2 Battery"
(*2): 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
[Connector numbers and Identifying method of
harnesses] in "3.3.20 Electrical Connection
Diagram".
(*1): When you replace EZJ 128 board, refer to
[Replacement procedures of EZJ128 board ]
in "3.2.1 EZJ128 board (controller board)".
(*2): 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".
by referring to