I think it's the rear or center channel amp IC. It's marked SK 18751. B&D has a SI18751 listed but I don't know if it's the same thing. Does anyone have a SONY number for this part? Thanks a million! Joel Jacobs Ohio Consumer Electronics Pickerington, Ohio ----------------------------------------------------------------------------- Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: //www.freelists.org/archives/techassist/