NCI 6720 User Manual page 26

26
Model 6700 Family User's Manual
Display shows unrecognized characters
1. Check software PROM for proper insertion.
2. Check display cables for the proper connec-
tion.
3. Replace PROM.
4. Replace the display board.
5. Replace the main board.
Display shows under "_ _ _ _" dashes
(Indicates that the scale is below zero or under
capacity.)
1. Verify that weigh platter is on the scale.
2. Press the ZERO key.
3. Power down, remove any items from the
platter, and then power up the scale.
4. Recalibrate the scale.
5. Replace the load cell.
6. Replace the main board.
Display shows center"_ _ _ _" dashes
(Indicates that the scale is outside zero capacity
of ±2%.)
1. Verify that weigh platter is on the scale.
2. Press the ZERO key.
3. Power down, remove any items from the
platter, and then power up the scale.
4. Recalibrate the scale.
5. Replace the load cell.
6. Replace the main board.
Display shows upper" _ _ _ _ " dashes
(Indicates the scale is over capacity.)
1. Remove all items from the scale.
2. Press the ZERO key.
3. Power down, and then power up the scale.
4. Recalibrate the scale.
5. Replace the load cell.
6. Replace the main board.