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Troubleshooting Symptom Charts/Miscellaneous
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Miscellaneous
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Monitor emits
snapping sound;
raster blinks for an
instant
Note:
This symptom, caused by foreign particles inside the CRT,
normally occurs only in new monitors. If the symptom persists
after 40 hours of operation, there is a hardware problem.
1 Replace power supply.
2 Check to see if arcing on main deflection board is cause. If so,
replace main deflection board. If not, CRT is defective.
Picture color uneven Adjust rotation and color uniformity. Refer to “Geometry’’ in the
Adjustments chapter.
Focus blurry on one
side of screen
1 Adjust focus. Refer to “Convergence” in the Adjustments
chapter.
2 Replace main deflection board.