I can only say what I would do but I live near a Farnell so postage doesnt apply.
I would recap the power supply and the dodgy cap on the main board. If it still doesnt work
youd then have to replace all the caps - double the postage.
If it works with the power supply caps replaced you should still consider replacing the
main board caps. I guess it depends on how much you want to spend but for a screen that size I think its worth trying to fix it.
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