42PF7520D/10 Plasma tv

[paulwma]

I have a 42PF7520D/10 Philips Plasma tv
The TV was working fine until just recently when it started to become difficult to turn on.
Now it will only stay on for a few seconds the turn it back off
I read a few posts on this forum and it seems like its the power supply. A post of this forum have said to
Check/replace,
Caps.2465/2508/2540/2541, all 100mfd.
What do you recommend i check?