Hitachi IJ UX Service Manual page 289

6.5.14 Failure of adjustment of excitation voltage
Failure of adjustment
of excitation voltage
Is the EZJ125 board CN5
connector disconnected or
in poor contact?
No
Is the DSW1 of
EZJ125 board
is properly set?
No
Correct the setting
Disconnect and reconnect the
Yes
EZJ125 board CN5 connector
correctly.
Yes Is the excitation
frequency properly
set?
No
Correct the excitation
voltage setting
1
Replace the EZJ125 board.
Yes
Is the problem
fixed?
No
Replace the EZJ126 board.
Yes
Is the problem
fixed?
No
Replace the Nozzle.
Yes
Is the problem
fixed?
No
Replace the print head.
Resume the
operation.
6-71
Resume the
operation.
When the adjustment
Yes
fails, is the voltage of
TP14 larger than
60V?
No
Replace the EZJ126 board.
Yes
Is the problem
fixed?
No
Replace the EZJ125 board.
Yes
Is the problem
fixed?
No
Replace the Nozzle.
Yes
Is the problem
fixed?
No
Replace the print head.
Yes
1