220-1101 · Question #604
When a user touches or swipes across an external touch screen, the image flickers but no input is registered on the presentation laptop. A technician verifies that the external touch screen appears fr
The correct answer is B. Check the cables connecting to the laptop.. When an external touch screen exhibits flickering without registering input on a presentation laptop, the first troubleshooting step should be to check the cables connecting the touch screen to the laptop. This includes ensuring that the cables are securely connected, undamaged,
Question
When a user touches or swipes across an external touch screen, the image flickers but no input is registered on the presentation laptop. A technician verifies that the external touch screen appears free from physical damage. Which of the following should the technician do next?
Options
- AReboot the LCD touch panel and laptop.
- BCheck the cables connecting to the laptop.
- CVerify the correct input source is set on the laptop.
- DReplace the laptop with a new device that is known to work.
- EInspect the LCD touch panel for dead pixels or burn-in.
How the community answered
(55 responses)- A2% (1)
- B80% (44)
- C2% (1)
- D11% (6)
- E5% (3)
Explanation
When an external touch screen exhibits flickering without registering input on a presentation laptop, the first troubleshooting step should be to check the cables connecting the touch screen to the laptop. This includes ensuring that the cables are securely connected, undamaged, and are the correct type for transmitting both video and touch input data. Faulty, loose, or incorrect cabling can lead to issues like flickering and unregistered inputs.
Topics
Community Discussion
No community discussion yet for this question.