Chapter Three – Troubleshooting Guides
59
3.15 WEIGH SYSTEM TROUBLESHOOTING GUIDE (CONTINUED) – OPTION-
AL EQUIPMENT
PROBLEM/SYMPTOM SOLUTION(S)
The following functions do not work individually
while all other functions work: Zero, Delta Change,
LBS/KGS Conversion, – Decrease Weight Dis-
played, + Increase Weight Displayed, Diagnostics.
A. Check cables and connections to scale key-
board (p/n 3000–507–943) and scale CPU board
(p/n 3000–307–959). If cables and connections
are O.K., replace scale keyboard then weigh CPU
board (see page 115 for weigh CPU replacement).
B. Check scale IFC (p/n 3000–507–957) and serial
IFC board (p/n 3000–300–965). If cables and con-
nections are O.K., replace scale IFC then serial
IFC board (see page 199 & 202 for board loca-
tions).
C. Check and verify individual load cells and their
cables/connections (see scale diagnostics p. 112
& 113). Replace as needed (see page 114).
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