Filter
Top Products
Performance Verification
AM700 Audio Measurement Set Service Manual
4–35
Verify Flat Panel Display Operation
1. Press FFT. When the FFT application has loaded, touch View Setup, select
the Spectrogram display, and then touch the Accept Changes soft key.
2. Check that there are no streaks or color smears of red, green, or blue.
3. In the UTILITIES front panel selections, press the Configure button.
4. Verify that the Configuration options: display has no streaks or color
smears. If there are any color streaks or smears, the ADC gain for the
associated color may need adjustment.
5. In the UTILITIES front panel selections press and hold in the Display
button.
6. Use the large control knob to set the Adjust brightness: level to 10%.
7. Check that the backlight for the LCD display just turns off (no visible
display at 10% brightness). If there is a visible display or if the display is
dimmed at too high a percentage of brightness, the internal BRT level may
need adjustment.
NOTE. The backlight display brightness decreases slowly with use. At an average
of four hours of use per day, the display brightness decreases to about 50% of
the original brightness after 3.5 years or about 5000 hours of total use time. If
the brightness level become too dim, it is time for a backlight replacement.
8. Release the Display button, and then press it again to return to the default
brightness level.