Trouble Shooting - KERN HCB Series Service Manual

5 Trouble Shooting

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Power on
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Full Segments?




Display Zero?




Proper readout?




Correct reading?





Normal operation.
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If no display, check batteries; keyboard / overlay; connection between
battery—main board.
If wrong segments, check fixing of LCD, zebra connector under LCD.
If display [LO], check battery>3.5V.
If display [ E] , check internal count.
If unstable reading, check hook, loadcell, Clearance between metal sensor
and lower plastic housing
If not accurate, perform span calibration.
If cannot reach full capacity, loadcell, and internal zero point.
If always zero, check internal zero point. Internal calibration if necessary.
HCB-SH-e-1410