Tachometer only goes up

[Nile]

The odometer in one of my TC's quit, so I installed new gears and it worked fine, however the tach needle only went up - sort of like an old school tell-tale tach.  Naturally I ran the engine thru the upper ranges of the lower gears, convincing myself that this might somehow reset the tach, but the needle just stayed at redline. It would not go back down to zero.  

 

I put in another cluster and the odo , tach and all other gauges worked great.  Any ideas?

[Reaper1]

The needle is dragging on the face...that's my guess.

[Nile]

That was my first guess, but it moves freely.  I can manually put the needle at zero and it simply goes up and up.

[Reaper1]

Maybe a bad solder connection on the PCB?