Hitachi IJ PH Service Manual page 25

When failed in the
automatic
adjustment, the
"manual
adjustment" is
displayed.
With respect to positions
[Waveform of excitation voltage]
of the board and the test
pin, refer to "3.3.2 EZJ106
board".
Vp-p
3 When the automatic adjustment is not normally completed, the following
factors are considered. Confirm whether or not each part is normal.
- The connection of EZJ93 board and EZJ106 board is insufficient.
- The dip switch on the EZJ106 board is wrongly set.
- The connection of a coaxial cable connector for excitation (EZJ106 CN5) is
insufficient.
- Replacement parts (boards of EZJ93 and 106, nozzle and head cable) are out of
order.
When failed in the automatic adjustment, the manual adjustment key is displayed.
Proc. status:Failed
Proc. status:In progress
When the manual adjustment key is pressed, a numerical value is manually put
into the excitation voltage adjusted value and the Apply key is pressed, the excitation
voltage value is increased and decreased.
Confirm a waveform of TP14 (excitation voltage) of the EZJ106 board by an
oscilloscope.
[ 0 7 6 0 ]
2-7
Apply
Model Vp-p
PH-D, 360 +/-20V