What does FLASHER ALARM ACTIVE mean on the Auxiliary Display Unit (ADU)?

This article discusses what FLASH ALARM ACTIVE means on an Auxiliary Display Unit (ADU).

When the ADU displays “FLASH ALARM ACTIVE” it is indicating that there is something wrong with the high density flash unit circuit.

Possible Causes

  • High density flash unit is plugged in.
  • Output of the flash circuit is not wired properly and has an open or closed circuit.
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