WILLETT 430, Service Manual

Page: 45 / 207

430 Ink Jet Printer Service and Maintenance Manual
28
Issue 2
Part No. 306-0430-102
Voltage Checks
1 Check the voltages on the POWER connector, situated at the bottom right-hand corner of the I/O board.
Use Pin 2 as the 0 V reference. 0 is a representation of the POWER connector with the voltages shown for
each pin.
Notes: - 24 V is generated from the I/O board not the PSU.
Allow ± 5% tolerance on all voltages except -24 V which is allowed ± 10%.
The power connector must be connected to the I/O board to carry out this check.
PIN 8
-24 V
PIN 7
0 V
PIN 6
+24 V
PIN 5
+5 V
PIN 4
-15 V
PIN 3
+5 V
PIN 2
0 V
PIN 1
+15 V
Figure 14 I/O board POWER connector
Reset Run Hours
If the Service icon is displayed, the time until the next service is due must be entered to remove it.
Proceed as follows:
1 From the Data Logging menu select Reset Run Hours.
2 Press
enter
.
3 Select Set pump alarm hours . Enter the number of hours until
the next ink system or pump service is due.
4 Set Reset pump run hours to Yes .
5 Refer to the
Preventative Maintenance Schedule
on page 143 and set Set machine alarm hours to the
number of hours until the next machine service is due.
6 Set Reset machine run hours to Yes .
7 Press
enter
to save the settings.