It is quite possible that you may have done PERMANENT DAMAGE to the MD by using too high of an input voltage to the power supply. The SAME AMOUNT OF VOLTAGE goes to the unit, even when it is in the "Charging Cradle". You probably have to have the unit repaired. You my try going back to the original vendor if they "GUARANTEED" that the unit will run on US power without any type of "power conversion". Please my ORIGINAL MD-LIST POST post of this SHARP MD-MT831 Power Problems. It outlines the volt levels involved. Send this to your Vendor where you originally purchased the unit. It should not be that old. My vendor said there would be "NO PROBLEM", but yet I discovered this OVER VOLTAGE abnormality in some SHARP 831's. It DID in fact have a problem and the vendor was WRONG. Sorry your having problems, I LOVE my 831 and have had NO problems since changing the adapter -- as soon as I noticed the problem --------------------------------------------------------------------------------------- Date: Sat, 4 Dec 1999 21:56:38 -0500 (EST) From: [EMAIL PROTECTED] Subject: MD: Sharp MD-MT831-A Hi, Hoping some one can help me, I purchased a brand new MT831 from Hong Kong 2 weeks ago and i have had no joy from it yet. Firstly I discovered the power problem, where it will not recognize mains power going directly into the unit, but I have been able to overcome this by using the cradle. The major problem that I have now is that it will not actually read any of the discs that I put into it, I keep getting a 'cantreada' error. The user manual that came with the unit does not explain the error mesages in english, and as far as I can tell it doesnt even explain an error 'a' in Japanese. Initially I was not having this problem, it started doing it intermittenly about a week ago and now will not read any discs at all. I am holding out on going to a technician because it is not under global warranty. But I now fear that it is a fault with the laser and I may not have any choice but to take it in. Anybody's help on this matter would be greatly appreciated. thanks, 3jane, a very unhappy MD user! ---------------------------------------------------------------------------------------- ----------------------------------------------------------------- To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]