think correct code is 46 (key at s posistion enter 20 st 46 press key posistion & then press same key posistion again to activate.)or if all else fails you can install default keyboard (caution all keys will reset) x/time is above number 9 digit if pressed will lock machine showing date & time nothing will cancel this apart from pressing x/time again to clear.
Turn key to S-Mode. Unplug the register, hold down the second key up from the lower right key on the
keyboard, while holding down this key plug the register back in. An install default keyboard receipt is
issued.only use this if all other options fail.
Dave (Wigan), August 2010