MATSUI M32LW508 32" Dimmed colour?

Wondering if anyone knows whats up with my t.v,
I've replaced the inverter (backlight board) as the colour's seem very dark, although the colour do still show they are strangely darker than they should be. I've played around with the brightness ect.. but nothing has changed. i'm sure its not the power board but wouldn't know what else other than the inverter://