Hi,
TV will 'turn on' using remote or on-set buttons, but no picture or sound will appear. The menus will not appear either. The back-light is on when set powered-up.
Took back off of TV, no capacitors appear to be blown (all flat top, no bulges).
Checked main PSU fuse, it's ok. Checked T-con fuse, it's ok.
All cables, connections seem fine.
No apparent signs of anything overheating, scorches etc.
Given the symptoms, what board is most likely to have failed?
I can purchase all three at a cost of around £70, but would rather buy them one at a time, starting with the most likely culprit.
Any help/experiences of the same would be appreciated.
Thanks.

TV will 'turn on' using remote or on-set buttons, but no picture or sound will appear. The menus will not appear either. The back-light is on when set powered-up.
Took back off of TV, no capacitors appear to be blown (all flat top, no bulges).
Checked main PSU fuse, it's ok. Checked T-con fuse, it's ok.
All cables, connections seem fine.
No apparent signs of anything overheating, scorches etc.
Given the symptoms, what board is most likely to have failed?
- Main PSU
- Main AV
- T-Conn
I can purchase all three at a cost of around £70, but would rather buy them one at a time, starting with the most likely culprit.
Any help/experiences of the same would be appreciated.
Thanks.