Hi all I'm after some advice I have a hitachi P50x01AU no picture. Turns on led at front red goes to green. Do I need an input signal to get a picture ? I have replaced the two 3300uf 100v caps(bulged) in the upper right hand side of the power board , measured the Vs and Va at CN99 as per the sm, 3V on Vs and 0V on Va, so I ordered a new power supply but after reading some posts on this site I may have made an error any ideas thanks.