Might try that. What's weird is the Keypad has power and works for, I dunno- a couple of weeks? then loses power. The old keypad is long gone I'm afraid. its a most bizarre situation. I would suspect if a gentle tap to the board (actually - a tape to the wooden beam the Alarm box is mounted to) seems to lose/connect power - then there is either a iffy cable to the keypad or the board is fooooked. Best guess of mine is board as the keypad was replaced previously for precisely this reason. Just strange as I connected it all up a few weeks ago, gave the alarm box taps, knocks, wiggles and power remained constant - then 2 weeks later, no power to keypad and alarm goes off.
Pressing on the board in the top left corner near where the keypad wire meets the board seems to restore/cut power to keypad. weird. Maybe I should film it?
Power goes to keypad - then cuts after a couple of weeks.