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Answer
How do you get the digital read out to light up on the Senior Swing Control Box?
There is a total of 4 red buttons on the front of the Senior Swing control box. To turn on the display, press and hold any 2 of the 4 red buttons at the same time for approximately 3-5 seconds. Y...
Does the ALK have 24vdc terminals on the circuit board?
The Von Duprin exit alarm ALK shipped after November 2010 are new style boards and can be identified by the 3 terminal blocks and LED.  Only these ALK will work with 24vdc power supply.
Can I bypass the circuit board on a M420 M450 or M490: Unsupported voids warranty
How to replace the circuit board or horn on a Guard-X device?
See PCB replacement instructions below. The horn is part of the board and can only be replaced by replacing the entire board.
What is the part number for the EAK PCB only for Monarch Falcon devices?
PCB only for the Alarm Kits prior to June 11th, 2012 is part #650335 and was used in the older 17 & 18 devices, 19, & pre June 2012 24/25's.
This circuit board will NOT work on the updated 24/25 Alarm Kits that released June 11th, 2012.