Techwood 42 inch lcd no picture or sound
I have a techwood 42 inch lcd i came down on new years day to find when i turn it on the blue light comes on then when i press the power button the light goes out as if the tv is coming on but no picture or sound ,ive checked the power supply in a technika 40 which has the vestel 17pw16-2 psu in aswel and it works no probs so im baffled what it can be does the av board cause this issue?? is there a way of plugging my tv into another tv via scart to see if i get a picture?? please ppl help me out its driving me nuts dont want to buy an av board to find out its something else ??????? THANKS IN ADVANCE