@davidjolly53848 you could check if the voltages that are on pin 8 of the connector are also on the connector on the harness, that corresponds to the same pin. I usually just check for corrosion, bend pins and tears. There is usually not a lot of other things that can go wrong with the harness. T-con board failure on Sony of this model are pretty common. If you want to, you could post a good picture of your T-con board. That way we could try to have you measure a few things to see if your T-con board has the important voltages.