Service manual

Performance Out of Specification
If the multimeter performance is out of specification limits, use the
adjustment procedures in Chapter 5 - Adjustments to correct the problem. If
the condition repeats, see "Testing Assemblies" to troubleshoot the
multimeter.
Testing
Assemblies
You can use the tests and checks in Table 8-3 to isolate the problem to a
user-replaceable part on the multimeter frame or PCA. See Figure 6-1
(E1411A) or Figure 6-2 (E1411B) in Chapter 6 - Replaceable Parts for
locations of user-replaceable parts.
NOTE
If the problem cannot be traced to a user-replaceable part listed in Table
6-1 or Table 6-2, return the multimeter to Agilent Technologies for
exchange. See Chapter 6 - Replaceable Parts for procedures.
Table 8-3. E1411 Tests/Checks
Test/Check Reference Designator Check:
Heat Damage - - - - - - - - - - Discolored PC boards
Damaged insulation
Evidence of arcing
Switch/Jumper
Settings
JM1, JM3, P3
SP1
IRQ Level setting
LADDR setting
Frame CBL1, CBL2
MP3, MP4, MP5, MP6
Cable contact damage
Panel binding posts
A1 Printed
Circuit
Assembly
F1, F2
J2, J102, J103, J301
K104, K105, K106
P1,P2
XU23, XU104, XU124
Fuse continuity
Mating connector contacts
Relay opening/closure
Connector contacts
IC contact/connections
Checking Heat Damage
Inspect the multimeter for signs of abnormal internally generated heat such
as discolored printed circuit boards or components, damaged insulation, or
evidence of arcing. If there is damage, do not operate
the multimeter until you correct the problem.
Agilent E1411A/E1411B Service Manual Service 57