Question:

What steps can I take to determine whether the issue with colors on my TV is caused by a defective input on the TV or a defective output on the external device?

Answer:

To find out if the issue is due to a defective input on the TV or a defective output on the external device, follow these steps:

Test a different device using the same input on the TV (e.g., if you're experiencing issues with your cable set-top box connected to HDMI 1, try connecting a working Blu-ray player to HDMI 1).

If the color problem doesn't occur with the second device, the original device (in this case, the cable set-top box) likely has a defective output and requires servicing.

If the color problem persists with the secondary device, the TV's input may be defective and needs to be serviced.

Terms:

Input (on the TV): This refers to the connection port on the television where an external device (such as a cable set-top box or a Blu-ray player) is plugged in.

Output (on the external device): In this context, output means the signal sent from the external device (like a cable set-top box) to the TV through the connection port.