Earlier quoted context omitted.
> TV - 4 years old, needed new main board The whole board was trashed? The PSU on my previous TV failed (due to capacitor plague); I ordered a complete part replacement kit from eBay for like 10 bucks and swapped the bad caps using a wood burner as a soldering iron. Did you check for broken/for parts listings for the same TV? At 4 years old, I'd expect a lot of 2nd-hand supply.
Lightning damage! Couldn't track the fault, only that it appeared to be on the main board: part fried chip I think. I don't keep things any more as I tend towards hoarding and live in a small house with an unexpectedly enlarged family. I found similar main boards from differently labelled TVs but all with subtly different layouts (and codes) and prices just too large (for me) to warrant giving it a go. Bad caps, I fe…
lol, not what I expected!
Bad caps are obvious, they bulge out or their resistance is shot.