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.
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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