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Display

LCD

Dell offers two different LCD's with this system:

  • 17.3 inch HD+ Truelife (1600 x 900)
  • 17.3 inch FHD Truelife (1920 x 1080)

These are 17.3-inch wide-screen LCD's with a 16:9 aspect ratio. These LCD's are field replaceable units (FRU's) and should not be replaced by customers.

LCD Built-In Self-Test


The Inspiron™ 1764 will feature Pre-boot System Assessment (PSA) build 4122 or later.The Pre-boot System Assessment (PSA) introduces a new test for the LCD, the LCD BIST (Built-In Self-Test).

While running the PSA, if the graphics test error (0334 or 0333) is given and the user presses <Y> to continue testing, the LCD BIST begins. During the LCD BIST, a solid color screen is shown and five different colors are displayed. While the colors are displayed, the system beeps every 2 seconds. You can use this test to determine if something is wrong with the display.

While the test runs, the LCD is operating on its own, free of the video controller, which may be discrete (a video card) or on board (on the system board). The test allows you to distinguish an LCD panel problem from a problem with the controller. If the colors are displayed across the screen without a problem, then the issue is not with the LCD.

A NOTE indicates important information that helps you make better use of your computer. NOTE:
Step-by-step instructions can be found in the DSN Knowledge Base article "How do I run the LCD BIST Diagnostics?"

For more information and a simulation on the BIST, refer to the "OBD Simulations" document.



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