Troubleshooting by symptom - CRT and Flat Panel monitors

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Troubleshooting by symptom - CRT and Flat Panel monitors

Troubleshooting issues

Choose a symptom to begin troubleshooting. If you do not see your symptom, then visit the Troubleshooting by type page, or try searching support.

A few dots are missing, discolored, or inappropriately lighted

"CHECK SIGNAL CABLE" message is shown and power indicator is steady amber

Hum is heard right after power is turned on

Image appears to be discolored

Image appears to be smeared

Picture is flickering

Picture is fuzzy

Screen image is not centered or sized properly

Screen is blank and power indicator is flashing green

White lines show red or blue shadows at edges

Need more help?

	View product support page for your monitor
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	Troubleshooting CRT and Flat Panel monitors by type

If you are unable to find what you are looking for, please do try the following options:
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2. Product usage and general troubleshooting tips
3. Lenovo Support Forum
4. Technical Support Call Centre

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Document ID : TS000499
Legacy Document ID : MIGR-57646
Last Updated :

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