If a tv was showing a flat black or blue screen or had "snow", what steps would you take to fix it? Give an example of the directions you would give to a customer to help them troubleshoot.

We have to check the video mode if we see that the TV was showing black or blue screen or had snow.

Explanation:

When this situation takes place we have to see first whether the set- top box is working or not. We also need to check whether the TV is in video mode or not , it the TV is in video mode it will be showing blue screen.Snow occurs when there are problems in the circuits, transformers , signal lines etc.When such problems take place we need to install a good quality cable, screened wall plates and need to remove splitters.