Help me diagnose the fault with this TV

[FBi7]

Hi,

Got a fault with my TV that I'd appreciate some help with on diagnosing the faulty components.

Pic of fault:
https://mega.nz/file/Ry5w3Ayb#zZ7GnGDkw0TVFlYw3rgCAnxaBS6Dj0UEQsWKgvUHLMk

Last week, I switched the TV on, screen was totally blank/black. Had sound. I took the back off the TV, re-seated the three ribbons that are underneath the rear TV casing, reassembled the TV and the screen/picture had returned perfectly.

Fast forward to yesterday, TV working perfectly in the morning, switched onto standby, went to switch on the TV last night, and the same fault had returned - no screen, but had sound. This morning I re-seated the ribbons and the pic above is now what I'm looking at now.

I know the ribbons are fragile, could it be them that need replacing? Or, is the screen itself goosed? TV is a Panasonic TX-43GX550B, only about 18 months old. Is it work attempting/arranging repair or is it not worth it? Or could it be one of the circuit boards?

Ribbon part numbers are 1 x 30079836 and 2 x 30103235.
https://www.tvparts.co.uk/30079836-lvds-lead-for-panasonic-tx-43fx555b
https://www.ebay.co.uk/itm/30103235...091370?hash=item28a45a93ea:g:00YAAOSwZ05f1EKo

Any help much appreciated.

Edit: pic link sorted.

 

[FBi7]

Thanks for your replies.

I haven't removed any warranty stickers, but it'll be obvious I've opened it up - marks on screws, etc. That would void any warranty I'd imagine, but I'll get in touch with the retailer it was purchased from and see if they can do anything.

It has 'Assembled in Turkey' on the label on the back of the TV.

Cheers