Basic setting of light beam length

This function is used to adjust zero point for the light beam controls. Adjustment of zero point should be done after repair or replacement of parts in the light beam control.
Test conditions:
Procedure:
  1. Start the function.
  2. The basic setting is performed.
  3. A dialogue box shows if the function succeeded or failed.
  4. If the function fails, check the test conditions and repair any faults.