MODELMODEL 2500_______________________________________________________2500_______________________________________________________TEST MALFUNCTIONSIn the case of an internal malfunction detected within the MODEL 2500:- Alarm contact is actuated and the red LED glows on the front panel.- Unit automatically ceases operation and no longer accepts data fromthe keypad.- Cause of the failure is displayed in English on the LCD screen.Malfunctions indicating failure in the self-diagnostic test, or a specific applicationare illustrated below:1. The following illustrated message of the MODEL 2500 LCD screen indicatesthat a memory test of the Random Access Memory (RAM) has failed. Thecharacters XXXX indicate the RAM integrated circuit where the erroroccurred.MEMORY ERRORBLOCK XXXX2. The following illustrated message of the MODEL 2500 LCD screen indicatesthat a required programmable read-only memory (PROM) is not installed inthe unit, or is improperly installed.PROM MISSING________________________________________________________________________________________________________________________________________SECTIONSECTION 33 15
