Table 2-9 Control panel diagnostic functions (continued)
Item Description Remarks
Red-grid touch test
Verifies that all areas respond to a touch Use this item to check the accuracy of the touch
screen.
Use a finger or 3 mm (.118 in) conductive stylus to
trace between the grid lines to check the accuracy
of the touchscreen calibration.
NOTE: The gap between the grid lines is 6 mm (.
236 in).
When the screen is touched, a line or a dot displays
on the screen (the X and Y coordinates of the
position on the screen are also displayed).
Calibration touch test
Checks calibration Use this item to determine if the touchscreen
calibration is within the acceptable range.
When selected, ten target points (and the X and Y
coordinates of the position of the target point)
display on the screen.
Touching a target causes the X and Y coordinate of
that target to appear in the middle of the
touchscreen (above the cancel button).
NOTE: The product automatically calibrates the
touchscreen. A manual touchscreen calibration
procedure is not available for this product.
Touchscreen LED display
test
Selects a test pattern to view on the display. Use this item to identify touchscreen LED display
problems.
1. Touch the icon.
2. Touch the up
or down arrow buttons to
scroll though touchscreen LED display test
screens.
Speaker test
Tests sounds Use this item to test audio functionality.
1. Touching this item causes the speaker to emit
a tone.
2. Touch the 2 button on the keypad, and then
touch this item to cause the speaker to emit a
more complex tone.
Firmware information
Shows the firmware version Touch this item to display the control panel
firmware version and firmware build date.
ENWW Troubleshooting process 131
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