Panasonic DVD Recorder DMR-EX77EB says no signal but no problem with aerial TV says signal strength 5 no problem for over a year since bought new until now

If you've connected the DVD to the TV via HDMI or SCART you shouldn't need to 'tune it in', just select the HDMI or SCART input. If your TV is also a Freeview device and you want to tune it to Freeview, where you have the aerial connected to the DVD recorder, you need to also connect the DVD recorder to the TV via an RF cable or aerial flylead so that the aerial signal passes through the DVD recorder. It's all in the instructions

Your tuner must be zapped, so no signal for TV. You have to replace the burned out module. Or buy a new unit and move the hdd into the new unit.

Check that C1801 is not leaky. If so, check if IC1801 has blown. If it has blown, it will also need to be replaced.

Usually it's only C1801 leaky, replace it and thats it.

You can find the capacitor on the main board, under the digital board that has ribbon cables going to the dvd drive.

Hope this helps.

Do you know anyone you can take the unit round and try on their aerial,then if it works you can go down then line of getting a new aerial.

Full reset/factory reset will remove your record schedule but not your recordings.

Recordings are possibly lost when replacing the software for updated versions.

cant play prerecorded dvds,messege on screen

ok this is easy you bought new disc's
new disc's these days are running new cd dvd format which is makeing old players useless i guess there weeding out piracy i guess but with this being the way it is i would upgrade player writer

The Panasonics are very picky about the media ie brand and quality of the DVD blank. Try a different brand and see if that helps.