*Note: the following applies to ALL Sony TVs with EX2T chassis and L500 in the model name: KLV-26L500A, KLV-32L500A, KLV-37L500A etc. It MIGHT apply to other variants, but I can't make any claim to it.
It's been a while since I repaired these 2 TV sets (same models, different faults). I don't have many photos of the process, so it won't be a long entry. Rather it can be seen as a support guide in case of finding similar faults on same-model Bravias.