My TV has no picture when I turn it on.

check the capacitors first, they are usualy the weak link.

Based on what you described I would say your TV has the "shrinking and expanding" fault. Its a common problem on that model and the symptoms can range from the video shrinking and expanding or no video or no audio....You can read more about this fix on the site www.TvRepairKits.com

IT MAY BE YOUR AUDIO/VIDEO CORD

call up the menu for the Guide and turn that off.

IF coming in via, the "Dish" networked receiver, please check that this volume is turned way up, on the TV. and then control the the Volume, with the Dish Remote, often this is a problem, as one is turned down, and the other cannot turn that up, simply try syncing the Volume controls, UP on TV, control the Audio with dish remote. thats all i can think of. Check by feeding a signal IN from an AV, source, ie: Yellow, Video, & Red& White, Audio. Turn TV UP and check, IF it responds to this all is well. If NOT then you do indeed have a fault, with the TV.

a panasonic tv will shut down after a short time with no video input. it sounds like the setup menu in the receiver has defaulted and needs to be setup again to coordinate the audio and video signals. ive seen many yamaha menus default. dont let geeks in your house.

Hi! the trouble indicates that your television's picture is the culprit, have your unit check by a qualified technician for verification.

What kind of input are you using

If you are using a set top box this might be caused by turnig the box on at the same tie as you turn the tv on or slightly after you turn the tv on.  If you are using compnent or HDMI inputs the set needs to see the signal as it is turned on to know what formt the signal is in. 

I’m happy to help further over the phone at https://www.6ya.com/expert/dewayne_4a10eab6caecdb92

My panasonic Tv pic suddenly turned into a blue color I can't see the pic any more just can hear the audio.....any solutions????