HP 8753E Service Manual page 475

Rebuilt-Exchange Assemblies
Under the rebuilt-exchange assembly program, certain factory-repaired
and tested modules (assemblies) are available on a trade-in basis These
assemblies are offered for lower cost than a new assembly, but meet all factory
specifications required of a new assembly.
The defective assembly must be returned for credit under the terms of the
rebuilt-exchange assembly program. Any spare assembly stock desired should be
ordered using the new assembly part number. F'igure 13-1 illustrates the module
exchange procedure. "Major Assemblies, Top" and "Major Assemblies, Bottom"
list all major assemblies, including those that can be replaced on an exchange
basis
Ordering Information
part number, indicate the quantity required, and address the order to the
nearest Hewlett-Packard office.
To order a part that is not listed in the replaceable parts lists, include the
instrument model number, complete instrument serial number, the description
and function of the part, and the number of parts required. Address the order
to the nearest Hewlett-Packard office.
Replaceable Parts 133