I need some help finding someone who can repair a power supply for an old Norcold Model DE-251D Marine refrigerator. Power supply part number is 160104600. The refrigerator runs perfect on 110v but won't run on 12v dc. Norcold technicians say the power supply is obsolete and they have no replacement. I've got to beleive there is some one out there who can repair this one. Can anyone help?