EPD/HB/40521/000
ISSUE 5
EPD TECHNICAL HANDBOOK Page 33
seconds. This indicates that the LCD segments can be turned off, and that
the tone frequencies are functional.
4. The all-segment display will reappear for approximately 5 seconds and the
LED will slow flash.
5. The all-segment display will disappear and the default display will appear.
This indicates that the confidence test has been successfully completed and
that the EPD is ready for operational use.
Upon completion of the confidence test, the unit reverts to the default display. If the
confidence test is unsuccessful a letter âFâ followed by three digits is displayed. Note
the failure codes and refer to Section 5 (Failure Modes and Fault Diagnosis).
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