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Performance Verification
AM700 Audio Measurement Set Service Manual
4–33
Verify CRT Display Operation
1. Press Analyzer. When the Analyzer application has loaded, select all four
graph view windows for display. Do not select the RT view window.
1. Check the focus in the center of the screen.
2. Check the focus at the corners of the screen.
The focus should not be objectionable in any area of the screen.
1. Check that the display width in the center is approximately 5 inches
(12.8 cm).
2. Check that the display height in the center is approximately 3.75 inches
(9.52 cm).
3. Check that the view windows for the four views are the same size vertically.
4. Check that the display is vertically centered with approximately the same
spacing at the top and bottom of the viewing area.
5. Check that the display is horizontally centered with approximately the same
spacing at the left and right sides of the viewing area.
6. Check that the display is aligned so the four graph view windows are
approximately square and the horizontal border lines of the view windows
are parallel to the top and bottom of the AM700 bezel.
a. Straight edges should be relatively straight with minimal bowing.
b. Boxes should have relatively square corners.
1. Press and hold in the Display button.
2. Check that the display brightness is set for 70% (this is the power on default
brightness level setting).
AM700 Setup
Check Display Focus
Check Size, Linearity,
Trace Rotation, and
Centering
Check Display Intensity
Control