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Beeper wiring

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Have a Max with 4.2.2 and Pro with 4.2.7

Since the beeper is under the lcd display, and that display is supplied with a 10 wire ribbon cable, I want to make a breakout board (same principle as the pin 27 breakout board) so that I can feed the sound signal to an external system.

I have no problem making pcb boards etc to do this.

Can anyone tell me which cable/pin# carries that signal, along with a specific ground pin# if needed.



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