I have found that the new part# for the Switch mode transformer 257159. repaired the hi pitched noise problem on this set. Model# F36444YX01 The old part # was 244228 Phillip R Hull STET phil245@xxxxxxxxxxxxx FAX 517--569-3075 Professional Technicians only ----------------------------------------------------------------------------- Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: //www.freelists.org/archives/techassist/