<!doctype html public "-//w3c//dtd html 4.0 transitional//en"> <html> <body bgcolor="#FFFFFF"> Aside from checking to see that all the cables are plugged in to the proper contacts, you should not attempt to open the unit or the driver board section to locate any fuses. Give it a good laymans lookover, and if you cant find anything wrong without opening it, then call in the PD man. Piano Disks are installed by lots of different folks who often enough each have their own tricks, I say again, you are asking for trouble if you try to get inside without having any hands on experience with these from before. This is not your problem Marcel, its a Piano Disk service problem. You do not want to make it yours... grin... believe me. I know you want to be the nice guy and help out the customer.. but dont dink with this. Get training first if you want to help out in the future.   Marcel Carey wrote: <blockquote TYPE=CITE><style></style> The answers I got are clear. I wouldn't try to fix it myself unless it could be something stupid like a fuse or breaker. The customer told me that the thing just wouldn't turn on. Is there such a breaker or fuse in the system. I will give it a look since the nearest installer is over 2 hrs away but I won't try to fix something I don't know about. Thanks Marcel Carey, RPTSherbrooke, QC</blockquote> -- Richard Brekne RPT, N.P.T.F. Bergen, Norway   </body> </html>