Calling All Alpine Car Radio Techs, This unit came in dead. Found L5952 with a hole in the middle, it's a processor controlled regulator. I replaced L5952 and TDA7560 (audio output IC). Checked all diodes, etc. and found nothing bad. As I was bringing up the power supply I heard a "beep", saw the display light up and then it all powered down. Is this thing gone to sleep? Maybe some sort of protection because it's been powered down completely, repaired and now powered back up. Does anyone know about these units? Any help would be appreciated. Thanks, David Lessard Mr_fixit@xxxxxxxxxxxx Alexandria, Ontario, Canada ----------------------------------------------------------------------------- This Email List is Public. Remove: http://www.tech-assist.org/remove.htm Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: //www.freelists.org/archives/techassist/