From the MODIFICATIONS prompt, enter the X-Function corresponding with Service History. Example: X3 If unknown, enter XM to view a menu of X-Function selections.

To display the option line, enter the number corresponding with the field you wish to add/edit. Example: 43

Enter the service date, or D to display today’s date.

Enter a description of the service. You are in word processing mode unless you selected ticker tape editing mode from the option line.

Enter the amount of the service call including parts.