http://files.leagueathletics.com/Images/Club/8788/HockeyClock/tic.htm

Instructions:

• Click the power switch to "on" (upper left corner).
• Type "yes" in the "continue game"  dialogue box, then click on "Enter*Yes".
• Click on the desired function, enter information using keypad, click "Enter*Yes".  You must click "Enter*Yes" after every entry.  (This step is necessary with the actual game clock as well).
• The "start/stop" controls the clock.