GE DigitalFlo XGM868i, Service Manual

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DigitalFlow™ XGM868i Service Manual 57
Appendix B. Calibration and Testing with PanaView
B.5.3e LCD Test
To test the LCD:
Note:
If you are in the Hardware Test option, skip to step 2.
1. From the left pane of the Calibration/Test window, double-click on Hardware Test .
2. In the center pane, double-click on LCD TEST .
3. The LCD display flashes three times, while a message in the PanaView right pane displays the test values. Click
[Next Item] or [Exit Page] to return to the Hardware Test option, and [Exit Page] again to return to the main
Calibration/Test menu.
B.5.3f LCD Contrast
To change the LCD contrast:
Note:
If you are in the Hardware Test option, skip to step 2.
1. From the left pane of the Calibration/Test window, double-click on Hardware Test .
2. In the center pane, double-click on LCD CONTRAST .
3. Double-click on Darken or Lighten to shift the LCD contrast.
4. When you have achieved the desired contrast, double-click on Store to save the contrast or on Abort to return to the
Hardware Test menu without changing the contrast.
B.5.3g DAC Test
To test the DAC (digital to analog converter):
Note:
If you are in the Hardware Test option, skip to step 2.
1. From the left pane of the Calibration/Test w indow, double-click on Hardware Test .
2. In the center pane, double-click on DAC TEST .
3. The center pane indicates whether or not the Zero Scale is functioning. Click
[Next Item]
or
[Exit Page]
to return to
the Hardware Test option, and
[Exit Page]
again to return to the main Calibration/Test menu.
B.5.3h Site Checksums
To display the site checksums:
Note:
If you are in the Hardware Test option, skip to step 2.
1. From the left pane of the Calibration/Test window, double-click on Hardware Test .
2. In the center pane, double-click on SITE CHECKSUMS .
3. The right pane displays a list of site checksum values. Click
[Next Item]
or
[Exit Page]
to return to the Hardware
Test option, and [Exit Page] again to return to the main Calibration/Test menu.