User manual

ECE 477 Final Report Spring 2004
LED-1 All LEDs fail to
light
Power supply failure,
software malfunction,
LED failure
Unit will not
flash; Patron will
not know table is
ready.
Observation Low If only 1 LED fails,
Failure Effects
negligible.
LCD-1 LCD Screen
outputs
improperly
Power Supply
Failure, U13/U14
failure causing
improper logic
translation
Unpredictable Observation Low
COM-1 Lack of
communication
between base unit
and Computer
C9 or C33 fail Order will not be
received; Patron
will not know
table is ready.
Observation Low
H-2