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IWQ Series Service Manual
Phenomenon
Cause
Measure
2.Interference to weighing
platter, platter support, or
load cell.
•
Check visually for any contact to
weighing platter, platter support
or load cell. If any, remove it.
3.Defect in A/D board or load
cell.
•
Run Test mode C1 to check A/D
value, and if necessary, replace
A/D board and load cell in the
order.
4.Incorrect supplied voltage
of VEX+5V, load cell.
•
Defect in main board
•
Check VEX+5V between R-W of
A/D board XJ2 by using multi-
meter. If the voltage is low or
fluctuated, replace main board to
generate VEX.
5.Influenced by
electromagnetic wave
•
Identify the source to eliminate,
or move to the other place.
1.Defect of the key.
•
Replace the tactile key soldered
to main board.
2.A gap between key sheet
and key (main board) is
inappropriate.
•
Adjust so that main board fits with
key sheet.
6. Not responding, or a hard to
operate key.
3.Defect in main board
•
Replace the main board.
7. Display trouble, such as no
lighting, or double lighting for a
digit or segment.
1.Defect in main board.
•
Replace the main board.
•
RS-232C journal printer in linked operation (Optional)
Phenomenon
Cause
Measure
•
Confirm that power is ON.
•
Confirm that the cable is
connected.
•
Confirm that it is online.
•
Confirm that there are no errors.
•
Confirm matching that it matches
the scale, or the transmission
specifications.
1.Defect in the printer.
Reference
Reference
Refer to the Setup
Mode list.
1. Printer not reopening, to
printing command.
2 Defect in the scale side.
•
Confirm that the cable is
connected.
•
Confirm that the cause is other
than setup item F11 0:no output.
•
Check that there is connection via
the main board XJ4 connector.
•
Replace the main board.
2. Mis-printing (garbled)
1.Mis-matching transmission
specifications
•
Confirm that the scale side and
the printer side match.
•
Replace the main board.