[Elecraft] K2 Alignment and Test Part 1

[Cecil Turquette]

In process of building an older K2 kit, SN 3943. I'm at the Part 1 alignment page 42 - the optical encoder test.
 
Status:  All ok to this point with display reading 40M 7100.00c and VFO A  However, the indication does not change when turning the VFO knob.  I've verified per the steps in Appendix E 012 on page 2, voltages in step 050 on page 3, and all of step 075 on page 5.  The 4 mhz osc can be heard in my station receiver and will change when I adjust C22 on the control board.
 
The next test: the relay test appears to work as the band changes and the display reads out for each band.  But as with the 40M position, the frequency does not change when turning the VFO knob. 
 
Is there anything I should check before beginning the voltage checks beginning on page 15?
 
Any suggestions would be appreciated.
 
Cecil, K5YQF