Did you know that the DM boards part numbers 934C260002, 934C280001, 934C260001, 934C381001, 934C328002 can be repaired by replacing the HDMI processor ic part number SIL9185CTU . Here is a quick troubleshooting procedure: Remove the DM board and check for a short at C9C52, if shorted remove HDMI IC IC2101 the short should go away, You can further test the unit with the IC removed by re-installing the board back in the television and verifying that it powers on and you have a picture via composite, component or tuner inputs.