My picture doesn't work but I have great quality sound.

Hi @Sharon H,

Can you view the TV menu screens OK?

If you can, is the TV signal source an antenna or a “box” of some description?

If a “box” have you tried a different cable connection to the TV or a different input type e.g. HDMI, Component video, Composite video to see if you get a picture?

If you can’t see the TV menus or even if you can, here’s an image taken from the service manual which shows the No Picture Troubleshooting flowchart.

(click on image to enlarge for better viewing)