I have a Kenwood M2 that was working. I decided to recap it and afterwards DBT failed. I have not changed the main filter capacitors as they worked fine. Power supply is intact. DBT does not light up when I remove the interconnect cable from power supply to main board. However when connected to main board DBT lights up. Capacitors are in correct polarity, there are not many any way. I have removed the output transistors and their drivers but DBT still lighting up bright. As these transirtors are proprietry I am not sure how to test them. In any case removing all 8 of them still does not solve the DBT issue. During the recap, I changed low value electrolytic capacitors to wima and also changed the ceramic capacitors to Wima, irrespective of the fact if they were in signal path or not. Is that a mistake, causing the issue? Am I using the correct method to diagnose the issue at hand? Many Thanks in advance for any help.