looking for electrical schematic for ncr ups unit model#4098-1007/E1007100 mfg 1992?

Question

national cash register of unintentional power supply ( UPS) manufactured approx. 1992 yr

Answer 1

NCR does not have them.

We purchased this UPS from Exide and just put our name on them. Look into older 1000VA Exide UPS's.

Typically all that is wrong with these are batteries. They use a 6 volt 8 - 10 AH battery. The batteries must be in good shape.