Cleaned sticky ADT 3000 keypad - now LCD doesnt work


Old 12-21-16, 04:06 AM
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Cleaned sticky ADT 3000 keypad - now LCD doesnt work

I opened my ADT 3000 in order to clean a sticky keypad. Put it back in place and keypad works properly but LCD display does not. I know I must have reassembled wrong but cant figure out how to put that little display glass back in properly. Cant find any drawing or schematic on how to do that.
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Old 12-21-16, 02:50 PM
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The LCD is simply socketed onto the PC board. It's very possible that whatever you used to clean the keypad components damaged those connections. Some of these devices use a conductive adhesive to keep things connected.

You probably need to replace the keypad (A "Safewatch 3000" is a slightly modified Vista 20p). The replacement is going to be a 6160 keypad (if your original was a full alphanumeric) or a 6150 if it was the simpler display.
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