YCO-1052-08-04
DSR-400
Technical Manual
3
III Troubleshooting
Problem
The scale will not power on.
The display continues to display
four eights after the scale is
turned on.
The displayed weight fluctuates
excessively.
Possible Cause
Batteries dead or incorrectly
installed.
AC adapter loose or malfunc-
tioning.
CPU board malfunction.
Vibration or an unstable
position or platform.
Material between the platform
and the scale body.
Weighing assembly in contact
with wires or case.
Load cell connector loose or
damaged.
Power board malfunction.
CPU board malfunction.
Solution
Test batteries. Reinstall if
needed.
Reseat adapter. Replace if
needed.
Replace CPU board.
Remove source of vibration
or place scale on stable
platform.
Remove material.
Reposition wires, case or
platform.
Reconnect or replace the
load cell connector.
Replace power board.
Replace CPU board.
IV Wiring Diagram
