It is necessary to calibrate the touch panel at the following times:

  • After replacing the operation panel.
  • After replacing the controller board.
  • If the touch panel detection function is not operating correctly.

  • Do not attempt to use any other selections in this menu.

  1. At the "Ready" screen, press Reset .
  2. On the operation panel keypad, push [1] [9] [9] [3].
  3. Press five times.
  4. Push "Touch Screen Adjust" (or push "1").
  5. Touch OK
  6. A message will prompt you to touch the plus mark in the upper left corner. Touch this mark with a tool (like the dull end of a pen or pencil).
  7. The next message will prompt you to touch the plus mark in the lower right corner of the screen. Touch this mark with the tool.
  8. Touch the screen when next three messages prompt you to touch each mark in the lower left corner, center, and finally, the upper right corner.
  9. When the last message prompts you to do so, touch a few random spots on the touch screen to confirm that the teardrop marks appear exactly where the screen is touched.
  10. If the operation is satisfactory, press OK.
    • If the teardrop mark does not appear where the screen is touched, push [Cancel].
    • Follow the prompts to repeat the procedure.
  11. Touch [#] Exit on the screen to close the Self-Diagnostic Menu and save the settings.

  • If you cannot calibrate the screen correctly, the touch panel may need to be replaced.