I have a faulty Sears Diehard Battery charger Mod. # 200713101 and cannot troubleshoot it without a schematic. I have been in contact with the customer service dept. at Sears several times over the past week but the only help they have been is to make available the PDF download version of the Owners Manual which contains top level wiring diagram but no schematic. I am convinced that a schematic, and perhaps a maintenance manual, exists for the unit but it is like fighting the windmills to deal with the Sears personnel. In the first place I haven't talked to anyone yet who gave me the impression that they know the difference between a schematic and a wiring diagram. I have tried to get to talk to a repair technician but apparently they aren't allowed to talk to customers, or some other nonsensical reason. If anyone can help I would greatly appreciate it. Thanks, Bill.