Invoking Bist - Dell OptiPlex 5260 Service Manual

controller in the AIO. When BIST is initiated, an internal generated pattern from the LCD will be emitted for user's observation. This pattern
will go by sequence through this pattern, Red- Green-Blue-White-Blue where each pattern is emitted for 2 to 3 seconds.
The following images displays the pattern of the colors on the LCD:
Standard display
Alternative display

Invoking BIST

To invoke the LCD BIST, turn on the system and press and hold the Display Built-in Self Test button plus the Power button together.
Release the buttons when Red- Green-Blue-White-Blue pattern is displayed on screen.
110 Troubleshooting your computer