Precision 7750 Service Manual

Display panel built-in self-test (LCD-BIST)

1. Press and hold the D key, and then press the power button.
2. Release both the D key and the power button when the computer begins POST.
3. The display panel begins to display a solid color, or cycling through different colors.
   NOTE The sequence of colors may vary depending on the different display panel vendors. The user only must ensure that the colors are being displayed correctly without distortion or graphical anomalies.
4. The computer reboots at the end of the last solid color.