Troubleshooting Video Issues Lesson 001: Physical Cabling and Source Selection Part 2
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18 Terms
What does video troubleshooting commonly encompass?
The wear and tear of cables overtime.
What does HDMI stand for?
High-Definition Multimedia Interface.
What does DVI-D stand for?
Digital Visual Interface - Digital.
What does DVI-I stand for?
Digital Visual Interface - Integrated.
What cables use a digital signal to output video?
HDMI, DisplayPort, Thunderbolt, DVI-D, and DVI-I.
What happens to the video output when using faulty cables that use a digital signal for video output?
The entire display image will be gone.
What does DVI-A stand for?
Digital Visual Interface - Analog.
What cables use an analog signal to output video?
VGA and DVI-A.
What happens to the video output when using cables that use an analog signal for video output?
The display image will be present but distorted in some way.
What happens if one of the pins in a 15-pin VGA cable breaks?
The image will be distorted or discolored.
Why are cables that use digital signals to output video easier to troubleshoot?
Because the entire signal goes away, making the issue very obvious.
What are the common issues of a video cable?
Broken cable, cables are not properly inserted, cheap cable, incorrect data source is selected, HDCP issues.
In what environment are broken cables a common issue?
In offices, where longer cables are used.
What does a tech need to do when testing the theory of a broken cable concerning troubleshooting video issues?
Inspect the cable and replace it if physically damaged.
What happens if a HDMI video cable is not fully seated in the port?
The signal cannot reach the display.
What should a tech do if there is no video output to a display outside of cable integrity?
Check that both ends of the cable are properly connected.
What is sacrificed when using a cheap cable?
Video quality.
What is important to use along with a high quality display or monitor?
A high quality cable that supports higher bandwidth to avoid blurriness.