Selecting The Color Display Patterns - HP 16500A Service Manual

HP 16500A/16501A - Service
The Color Display Test
The Color Display Test is used to test the display.
This test is not normally needed. These screens are primarily used when the color module requires
adjusting. For the adjustment procedure, refer to section 4-5, "Color Display Module Adjustments."
To check for color purity, proceed as follows:
1. From the Mainframe Test menu, touch the Color Display Test. The white cross-hatch pattern is
displayed. This pattern is used for the color module geometry adjustments.
2. Touch the Continue field. The white raster pattern is displayed. With every touch of the Continue
field, the next color test pattern is displayed. See figure 6-9.
3. Touch Continue from the black raster pattern to display the Mainframe Test menu. Note that the
Display Test status has changed from UNTESTED to TESTED.
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Figure 6-9. Selecting the Color Display Patterns