my tnx to all who provided info on the power supply; if anyone runs across service/repair/maintenance info on this one please let me know; i'm also contacting kenwood for any assistance (tnx to tom!). tnx again, barry carson city nv -- Barry Tuttleman Carson City, Nevada electronics-related website: http://home.att.net/~btuttleman2/electron.html industrial-related website: http://home.att.net/~btuttleman/barrysite.html