2. Service
Pre-Troubleshooting Information
28
Recommended Test Equipment
Test equipment recommended for testing and troubleshooting the
5071A is listed in Chapter 1, “Performance Tests.” Substitute equipment
may be used if it meets or exceeds the required characteristics listed in Table
1-1.
Repair Considerations
Electrostatic Discharge
Electronic components and assemblies in the 5071A 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 workstations 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.)
Disassembly and Reassembly Specifics
Refer to the Chapter 4, “Replacing Assemblies,” in this manual for complete
disassembly and reassemble details, and Chapter 5, “Replaceable Parts” for
an exploded view of the instrument parts.
After Service Considerations
Product Safety Checks
The following safety checks must be performed after any trouble-shooting
and repair procedures have been completed to ensure the safe operation of
the instrument.
WARNING
RESISTANCE CHECKS DESCRIBED IN THE FOLLOWING TEXT
REQUIRE THAT THE POWER CORD BE CONNECTED TO THE
INSTRUMENT AND THAT AC POWER BE DISCONNECTED. BE
SURE THAT THE POWER CORD IS NOT CONNECTED TO
POWER BEFORE PERFORMING ANY SAFETY CHECKS.
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