68 │ Troub lesh oot in g
3. Move the joystick to highlight the Diagnostic icon and then press the
joystick to confirm. A gray test pattern appears.
4. Carefully inspect the screen for abnormalities.
5. Pr
ess the joystick to change the test patterns.
6. R
epeat steps 4 and 5 to inspect the display in red, green, blue, black, white,
and text screens.
7. Pr
ess the joystick to end the diagnostic program.
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