Methods and systems for diagnosing projection device failure

Details Methods and systems for diagnosing projection device failure Methods and systems for diagnosing projection device failure

2007-07-17

2007-07-17

Hofsass, Jeffery (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S641000, C315S129000, C315S291000, C361S247000, C353S085000, C362S015000

Reexamination Certificate

active

10976270

ABSTRACT:
Projection device failure may be diagnosed by sensing improper operation of projection lamp ignitor circuitry. An ignitor failure indicator may be activated based on a sensed failure in the operation of the lamp ignitor circuitry to prevent incorrect projection lamp failure notification.

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Search Report; SG200505235-2; Sep. 11, 2006; 4 pages.

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