Hold down NB and MHz keys + Power ON.
Turn the Frequency Tuning knob to change menu number. 

                                                     
A0  Checksum diplay (version of YOUR installed pgm)  
A1  RIT center                   Initial value  80   
A2  IF-Shift center              Initial value  80
A3  LSB carrier point            Initial value   0   
A4  USB  carrier point           Initial value   0   
A5  S-meter adjust S1 (not FM)   Initial value  2E
A6  S-meter adjust S9 (not FM)   Initial value  73
A7  S-meter adjust full (not FM) Initial value  C2
A8  S-meter FM start             Initial value  91
A9  S-meter FM full scale        Initial value  CC
AA  RF-meter adjust low (10W)    Initial value  3C
AB  RF-meter adjust middle (50W) Initial value  80
AC  RF-meter adjust high (100W)  Initial value  B1
AD  Write to Eprom by pressing UP or DOWN key.