Hitachi UX Twin Nozzle Service Manual page 272

6.2.15 Memory Fault C/T/M/S
Memory
Fault T/M/S
Does the fault recur
upon power-on reset?
No
Do the system reset by rescue soft
No
Does the fault recur?
Replace the EZJ133 board*1.
(*1): When you replace EZJ133 board, refer to
Resume the
operation.
(*2): When you replace EZJ 128 board, refer to [Replacement procedures of EZJ128 board ] in
6.2.16 Memory Fault OP
Memory
Fault OP
Does the fault recur
when the EZJ130 board
is attached?
No
Resume the
operation.
6.2.17 Internal Communication Error S
Internal Communication
Error S
Does the fault recur
upon power-on reset?
No
Resume the
operation.
Yes
Yes
"3.3.1 EZJ133 board (MPU board)".
"3.2.1 EZJ128 board (controller board)".
(*1): When you replace EZJ130 board, refer to [Replacement procedures of
EZJ130 board] in "3.3.13 EZJ130 board (Software option control
board)".
Yes
Replace the EZJ130 board.
(*1): When you replace EZJ133 board, refer to
EZJ133 board]
[Caution]
Be sure to check that there is no wrong connection of harnesses by referring
to [Connector numbers and Identifying method of harnesses]
Electrical Connection Diagram".
Yes
Replace the EZJ133 board.*1
6-30
Memory
Fault C
Yes
Does the fault recur
upon power-on reset?
No
Do the system reset by rescue soft
No
Does the fault recur?
Replace the EZJ128 board*2.
[Replacement procedures of EZJ133 board]
"3.3.1 EZJ133 board (MPU board)".
in
Yes
in
[Replacement procedures of
in "3.3.20