Hitachi IJ PH Service Manual page 194

6.6.5 Failure of adjustment of excitation voltage
Failure of adjustment
of excitation voltage
Is the EZJ106 board CN5
connector disconnected or
in poor contact?
No
Yes
Is the DSW1 of
EZJ106 board
is properly set?
No
Correct the setting
Disconnect and reconnect the
Yes
EZJ106 board CN5 connector
correctly.
Is the excitation
frequency properly
set?
No
Correct the excitation
voltage setting
１
Replace the EZJ106 board.
Yes
Is the problem
fixed?
No
Replace the EZJ93 board.
Yes
Is the problem
fixed?
No
Replace the Nozzle.
Yes
Is the problem
fixed?
No
Replace the print head.
Resume the
operation.
6-57
Resume the
operation.
When the adjustment
Yes
fails, is the voltage of
TP14 larger than
360V?
No
Replace the EZJ93 board.
Yes
Is the problem
fixed?
No
Replace the EZJ106 board.
Yes
Is the problem
fixed?
No
Replace the Nozzle.
Yes
Is the problem
fixed?
No
Replace the print head.
Yes
１