DO IT YOURSELF COMPONENT LEVEL REPAIRS HISTORY OF
COMPONENT LEVEL INFORMATION PACKETS (CLIPS)
In the early 1980's, Hewlett-Packard made an order of
magnitude improvement in the quality and reliability of HP
Digital Multimeters. These improvements resulted from an
HP-wide objective of a X10 quality improvement in hardware
products. HP DMMs introduced during the 1980s have very
low failure rates as a result of the reliability improvements.
This dramatic improvement in failure rates caused HP to change
from a component level repair strategy to an assembly level
repair strategy on most new products including the HP 3458A.
Assembly level repair is more cost effective.
Customers, such as the US Armed Forces, request component level
documents enabling them to do their own component level
repairs. For this reason, HP provides Component Level
Information Packets (CLIPS) on selected products including
the HP 3458A. The HP 3458A CLIP contains the following
documents: 1) schematics, 2) component locators and 3)
parts lists for each printed circuit assembly.
HP 3458A REPAIR STRATEGY
The HP 3458A System DMM repair strategy is assembly
replacement for less expensive assemblies and assembly
exchange for more expensive assemblies. Assembly exchange
requires diagnosis of failure to the assembly level and
exchange of the failed assembly for a rebuilt assembly.
HP docs not support HP Repair Centers or HP customers in
doing HP 3458A component level repairs.