I recently recapped an SE analog board and power supply after the video on it failed. I checked the voltages at the logic board and all look good. What else do I need to check? I also built an SE Reloaded board with all new caps and resistors and have just tried another CPU in it but it doesn't chime either. It was the victim of a battery bomb. Could the chips near the sound chip being bad prevent it from booting? would this also prevent any high voltage on the CRT?