Bar Graph Displays "INPUT BOARD FAILURE"
Check PMS II fuses.
Check Main Unit power supply outputs on Rate Input Module screw terminals or at Test Points. If a
voltage(s) Is Incorrect, replace power supply.
Check cabling and connections between the Input Circuit Board and the Process and Display Circuit
Replace Input Board.
Switch Alarm or Status Display Inoperative.
Enter the Edit mode and determine at which Input Channel the switch is terminated. Also note
whether the switch operates as normally closed (NC) or normally open (NO) during non-alarm
Check switch sensor, sensor cable and connections.
Disconnect switch terminations at Input Board Switch Module screw terminals. Short "IN" and "GND"
(+ and -) terminals together. Display should now be In non-alarm status (after delay time) if switch
operates NC or In alarm status If operation is NO. Remove jumper and status should reverse. If
Indications are Improper, replace Input Board.
Section 9 - Page 8