White's did me good with the repairs. I commend them for the speed at which they fixed the calibration problem and the minimal cost of repair $94. They replaced the cuff, screen, headphone jack all the necessary bolts and wing nuts. I slapped on the Ellipse coil and tested the coil with coins. The readings were spot on for the nickel at 20, quarters a little high at 87 and pennies and dimes were close together at 78-80. Overall all looseness and wobble is gone in the shaft, and headphones are happy once again. I do not know how they recalibrate the board, but FYI, no parts were listed on the invoice related to replacement of board parts. Calibration must be in adjusting and tuning only. High points for quality and service. I tip my hat off to White's! 
Marty

Marty