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Re: Tach to Pcm
Quote:
Originally Posted by BBPanel
The purpose of the pull-up resistor is to change the +5v pcm tach signal to +12v - it worked for me on my Autometer tach. Sure you have the resistor in the correct direction - have no idea what it will do if not.
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Tried both power and lead to pcm. Lead did nothing power went backwards
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