Scantronic 9000 probs?

To change the alarm code on a Scantronic 9800
Type in the existing code,
Press button 4 (prog. programme)
'oc' (old code) appears on the display, type in the old code
'nc' (new code) appears on the display, type in the new code
Then press the clear button and the alarm will go back to the usual 'day' mode

Gordon Johnston
November 2007