回答“Replacing Sanyo DP50747 Powerboard - Help Appreciated!”OK I have been here before lol. I have replaced all three YSUS and buffers. Plugged in the power and There was a click. LED lights came on but D2. Then they all went off. power supply clicked again then power light went off after 20 sec. What now???????? I unplugged the Ysus board to see if it was the problem. When I do that none of the led's come on??? I'm so lost!!