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Old 03-13-2013, 10:58 PM   #110
cjohnson6772
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Join Date: Dec 2010
Location: NC
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Re: 67-72 Electric speedo

Quote:
Originally Posted by ls1nova71 View Post
Sure thing. There are 7 pins on the back of the circuit board, but you'll only use 3. They are labled on the board, IGN for ignition power, GND for ground, and SPD for the speedometer input to the gauge. In the pic, the pink is ignition, black is ground and green is speedo input. Also, when you take the original printed circuit off the back of the cluster, if you save a few of the square push on connectors that the gauges hook to, you can solder a wire directly on to them and then the wire will just push on and will be a good connection without having to solder straight to the circuit board.
EXACTLY the information I was looking for! Thank you. This may be a silly question but when I go to put the needle back on the gauge how will I know where to reinstall it? Should I just reinstall at 0? Will the gauge pre-sweep and fix itself? Do I have to put it back on exactly where I removed it?
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