Troubleshooting the Digital Video Experience

tiling, missing audio, and frozen picture are examples of artifacts that

Are likely under the control of the technician in the hybrid fiber/coax (HFC) network or at the customer premises

In working through a flowchart for the six-step process of troubleshooting a report of tiling by a single customer, one of the first questions asked should be

Are there similar complaints from other customers

If a customer reports that a program's audio plays but there is no video display, the recommended actions are

Check if any cables are disconnected, make sure the TV set is properly configured, and check to see if the TV is on (if audio runs through a different system such as surround sound).

The poor quality of analog programming displayed on a digital TV set, a common complaint of customers, can be caused by

Image rescaling that standard definition TV (SDTV) analog programs require to be displayed on a 1080p resolution display.

The digital video artifacts of loss of lip sync and smearing are associated with

The types of artifacts generally found at the customer premises due to timing delay and frame rate, respectively.

When a viewer receives a "Channel not available, try again later" message, the probable cause is

There is insufficient bandwidth from the headend to the hub to accommodate the data stream for the requested channel.

One of the last things a technician does when following a process for troubleshooting and resolving problems with digital video quality is

Verify the problem is resolved by taking measurements to confirm the resolution and ensuring the resolution did not introduce new problems.

The digital artifacts referred to as blockiness, blurring, mosquito noise, and contour represent

Video capture and processing artifacts that cannot be addressed at the customer premises

A logical progression of events for resolving a customer's report of digital video artifacts on various channels could include

Analyzing the problem further to get a more narrow definition of the issue before trying to diagnose the symptoms of the problem.

One of the first things a technician needs to address in troubleshooting issues with digital video quality is

Identify the problem by asking the customer to describe the problem and whether or not it is intermittent or constant.