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Odometer not working... Gears ok

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Old 03-06-2018, 05:44 AM   #16
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Location: New Jersey
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Originally Posted by edwinsmith View Post
Steppers are fairly simple motors. It's 2 windings and they are energized one in one direction then the other then the first in the opposite direction then the other and so on. Check out the windings with an ohmmeter for continuity. This assumes the armature isn't stuck or the geartrain is working freely.

The speedo end at the trans is a simple pulse generator and the circuit generates the proper switchings for the stepper to run. The other part converts the pulses into current i.e. more pulses to more current.

the gear train does spin freely and nothing is stuck internally. I even put dielectric grease on it to it would spin better. And I thoufht I checked the stepper motor for continuity but I could have been checking the outer cage 😡 I'm still waiting for that circuit to come in
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