Dell P2422HA Monitor Users Guide - Page 61

Press the joystick to change the test patterns., Repeat steps 4 and 5 to inspect the display in red

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3. Move the joystick to highlight the Diagnostic icon joystick to confirm. A gray test pattern appears. Select option: , and then press the 4. Carefully inspect the screen for abnormalities. 5. Press the joystick to change the test patterns. 6. Repeat steps 4 and 5 to inspect the display in red, green, blue, black, white, and text screens. 7. Press the joystick to end the diagnostic program. Troubleshooting │ 61

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Troubleshooting
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61
3. Move the joystick to highlight the Diagnostic icon
, and then press the
joystick to confirm. A gray test pattern appears.
Select option:
4. Carefully inspect the screen for abnormalities.
5. Press the joystick to change the test patterns.
6. Repeat steps 4 and 5 to inspect the display in red, green, blue, black, white,
and text screens.
7. Press the joystick to end the diagnostic program.