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Chapter 2 Service
Pre-Troubleshooting Information
2-38 Assembly-Level Service Guide
2
Repair Considerations
Electrostatic Discharge
Electronic components and assemblies in the HP 53131A/132A/181A can
be permanently degraded or damaged by electrostatic discharge. Use the
following precautions when servicing the instrument:
1 ENSURE that static-sensitive devices or assemblies are serviced
at static-safe work stations providing proper grounding for
service personnel.
2 ENSURE that static-sensitive devices or assemblies are stored in
static shielding bags or containers.
3 DO NOT wear clothing subject to static-charge buildup, such as
wool or synthetic materials.
4 DO NOT handle components or assemblies in carpeted areas.
5 DO NOT remove an assembly or component from its static
shielding protection until you are ready to install it.
6 AVOID touching component leads. (Handle by packaging only.)
Surface Mount Repair
Surface mount components should only be removed using soldering irons
or desoldering stations expressly designed for surface mount components.
Use of conventional solder removal equipment will almost always result in
permanent damage to the printed circuit board and will void your
Hewlett-Packard factory warranty.
Disassembly and Reassembly Specifics
Refer to the Chapter 3, “Replacing Assemblies,” in this guide for complete
disassembly and reassemble details, and Chapter 5, “Replaceable Parts,”
for the appropriate exploded view of the instrument parts.