MA-982KC Monitor goes blank but power remains?

Hi there, like many others i have the same problem of my monitor (proview ma-982kc) going blank but the power light remaining on green. on what others have experienced and said, i replaced x6 470uf capacitors and x1 220uf capacitor. only the 220 appeared to 'bulge'. unfortunately, after replacing the 7 capacitors, the problem remains, so it appears i had no problem with the capacitors. has any one any other suggestions to how to fix or what is causing the problem? cheers in advance, gordon