Troubleshooting guide

1 . Execute combination and open container.
2. Follow instructions in Appendix D.
CONTAINER IS CLOSED, NUMBERS CANNOT BE ACCURATELY INTERPRETED
1. Check ribbon cable and splice if possible to open container. See Appendix I.
2. If unable to open the container, follow instructions in Appendix E.
BLACK SPOTS ON LCD
The display has black spots. First, can the numbers be accurately interpreted, and secondly, is
the container open or closed?
Container is open.
Follow instructions for Appendix D.
Container is closed, numbers CAN be accurately interpreted. Execute combination and
open container.
Follow instructions for Appendix D.
Container is closed, numbers CANNOT be accurately interpreted.
If the display problem is severe black spots, try heating the display slightly with a hot air device
(hair dryer). Exercise patience, restrict the amount of heat to be applied at first. You can
increase the intensity as time goes by. If you are successful, proceed to instructions for Appen-
dix D. If heating the display does not work, proceed by following the instructions for Appendix E.
Replace parts where necessary.
DIAL COMBINATION, GET “OP”. BUT DIAL IS FREE SPINNING
Assumption here is that the container is closed.
If container is open follow instructions for Appendix B and replace whatever parts necessary.
POSSIBLE CAUSES
1. Back cover assembly (electronic card).
2. Hub set screw loose or grooved on spindle.
3. Drive cam assembly insert loose.