A user reports that their external LED desktop monitor periodically flickers off for two seconds before restoring the image during regular office tasks. Which of the following initial, non-destructive troubleshooting steps should a technician take to resolve this issue? (Select TWO.)
- Re-seat the video cable at both the monitor and host system ports to ensure a secure connection.Cevap
- Replace the existing video cable with a known-good cable to rule out signal degradation or internal wire damage.Cevap
- CDisassemble the display enclosure to replace the internal CCFL backlight inverter board.
- DPerform a complete operating system clean reinstallation before checking physical hardware connections.
Cevap
The technician should re-seat the video cable at both connection ends and test with a known-good video cable.
Intermittent screen flickering and brief signal drops are most commonly caused by loose physical cable seats or faulty signal conductors inside the video cable. Re-seating cable ends and swapping for a known-good cable are quick, non-destructive diagnostic actions.
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Physical Cable Connection and Replacement Diagnostics
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