Service manual

Service notes and other service literature for the Agilent E1326B
multimeter may be available through Agilent. For information, contact
your nearest Agilent Sales and Service Office.
Recommended
Repair Strategy
The recommended repair strategy for the Agilent E1326B multimeter is
assembly-level repair. User repairs to the Agilent E1326B multimeter
are limited to replacement of the parts shown in Table 6-1 Agilent
E1326B Replaceable Parts.
If the fault cannot be traced to a user-replaceable part in Table 6-1,
return the entire Agilent E1326B multimeter to Agilent for exchange or
replacement (see Chapter 6 - Replaceable Parts for details.) Individual
A1 or A2 printed circuit assemblies (PCAs) cannot be returned for
exchange or replacement.
Troubleshooting
Techniques
There are two main steps to troubleshoot an Agilent E1326B
multimeter problem: (1) identify the problem, and (2) test assemblies
to isolate the cause to a user-replaceable component.
Identifying
the Problem
Multimeter problems can be divided into four general categories:
• Self-test errors
• Operator errors
• Catastrophic failures
• Performance out of specification
Self-Test Errors
An error number (1, 2, 3, or 4) is returned when the multimeter self-test
fails. If a self-test error occurs, recycle power and repeat the self-test. If
the error repeats, see "Testing Assemblies" to troubleshoot the
multimeter. Table 8-2 shows some typical causes of self-test errors.
8-2 Service