Does anyone have a schematic OR tuning instructions for the tone decoder boards?.. I have two that I need to change tone freqs on and know that instalert is out of business..
I can add a two tone decoder board to the receiver but don't have any info as to what pin does what on the receiver circuit board.. Any help is appreciated
I can add a two tone decoder board to the receiver but don't have any info as to what pin does what on the receiver circuit board.. Any help is appreciated