Need help with perfect pass

[Boardstiff]

So, the other day my family and I were out. I was in the water preparing to go for a pull. My wife decided to try and adjust the perfect pass. Now the speedometer is not working. I believe what she did was, hit menu then the first option that pops up is speedometer adjust. I think she adjusted this to 23mph when we were sitting still. Now I can't get the thing to work. I've been out on the water with a gps got the boat to 20mph and set the "speedometer adjust" to that but still can't get it to work.
Can anyone tell me how to get the speedometer working again? It's in a 05 SANTE.
Thanks

[jhersey29]

Guessing it is digital pro? Clean the paddlewheel connections and check the paddlewheel fins.
Sent from my RM-877_nam_att_205 using Tapatalk

[Boardstiff]

Not sure if it's a digital pro. I believe it's original to the boat. I didn't get the manual with it when I bought the boat.

It was working perfectly until my wife made the adjustment.
Now when you're at wakeboard speed, say 23mph the speedometer reads 1.5mph.