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Performance Verification
4–34
AM700 Audio Measurement Set Service Manual
3. Rotate the large control knob counterclockwise to decrease the display
intensity to 0%.
4. Check that the display is completely dimmed.
5. Release the Display button then press and hold it in again.
6. Check that the display brightness is now set for 90%.
7. Rotate the large control knob clockwise to increase the brightness to 100%,
then release the Display button.
8. Select the FFT Analyzer.
9. As the FFT Analyzer application is loading, check the application name
display for even illumination and for phosphor burns.
10. Check that there are no retrace lines visible.
11. Return the display brightness level to 70%.
NOTE. Minor deviations of the display from exact alignment do not affect the
accuracy of the measurements. Readjustment of the display monitor should not
be attempted for any minor deviations. They should be noted for the next regular
scheduled alignment. Major deviation from alignment indicates a display
monitor problem and should be referred to a qualified repair facility for
corrective action.