Hi Tony,
Apologies, I have only just realized that when I scanned the manual, none of the "even" pages scanned! I will rescan, this time paying more attention to what is scanned.
The calibration code listed in the manual is 62 951 413. To enter the code, the manual says "position the cursor on a digit, then press select to select it. Repeat the procedure for each digit and finish with Enter". I haven't tried it myself so I hope it works.
Regards,
Peter