I have a friend that has a Yamaha receiver Model# RX-V85. This unit works OK for about 5 minutes then gets a hum and turns off. I am a little confused because he says there is no protect indicator on. Normally with the hum I would thing it would be going into a protect mode. Maybe this unit doesn't have a visible protect indicator. Any thoughts would be appreciated. TIA, Dale Dale A. Lubow... HarrisTV50010@xxxxxxx ..515-232-1109..(Fax)515-232-3356 Harris TV & Appliance..........335 Lincoln Way.....Ames.....Iowa.....50010-3384 ----------------------------------------------------------------------------- Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: //www.freelists.org/archives/techassist/