Making Visual
Checks
Visual checks for the multiplexer assemblies include the following.
See Table 4-3 for typical symptoms/actions.
•
Check switches/jumpers
•
Check for heat damage
•
Check terminal module connections
NOTE
Refer to the appropriate user’s manual for information on logical address
and IRQ settings. If there are no apparent problems following the visual
checks, run the Performance Verification Tests in Chapter 2 to see if a relay
or other component is defective.
Table 4-3. E1343A/44A/45A/47A/55A/56A Visual Tests/Checks
Test/Check
Reference
Designator
Check
Action/Notes
Heat Damage
- - - - -
- - - - -
- - - - -
Discolored PC boards
Damaged insulation
Evidence of arcing
If there is damage, do not operate the
multiplexer until you have corrected the
problem.
Switch/Jumper
Settings
- - - - -
SW1
SW2
IRQ Level setting
Logical address setting
Card ID setting
Factory set at 1
Factory set at 112
Set to 45A,47A,55A, or 56A as
appropriate for multiplexer
Component
Assembly
F1, F2
J1
P1
Fuse continuity
Dirty or bent connector pins
Dirty or bent connector pins
Check fuses with ohmmeter
Straighten/clean pins
Straighten/clean pins
Terminal
Module
P1
TB1 - TB5
J0, J1
(E1355A/56A)
Dirty or bent connector pins
Loose screw connections
Bridge connections
Straighten/clean pins
Check/tighten connections
Set for 1/4, 1/2, or full as required
Chapter 4
Service 57
Summary of Contents for Agilent E1345A
Page 2: ......
Page 8: ...Notes 6 E1343A 44A 45A 47A 55A 56A Service Manual ...
Page 9: ......
Page 10: ......
Page 12: ...Notes 10 What s In This Manual E1343A 44A 45A 47A 55A 56A Service Manual ...
Page 20: ...Figure 1 2 Initial Incoming Inspection Guidelines 18 General Information Chapter 1 ...
Page 22: ...Notes 20 General Information Chapter 1 ...
Page 50: ...Figure 3 3 E1355A E1356A Terminal Module Mechanical Parts 48 Replaceable Parts Chapter 3 ...
Page 54: ...Figure 4 1 E1343A E1344A E1345A E1347A Multiplexer Block Diagram 52 Service Chapter 4 ...
Page 56: ...Figure 4 2 E1355A 56A Multiplexers Block Diagram 54 Service Chapter 4 ...
Page 64: ...Notes 62 Service Chapter 4 ...
Page 72: ...Notes 70 Example C Programs Appendix A ...
Page 82: ...Figure B 3 E1355A 56A Terminal Module Mechanical Parts 80 Backdating Information Appendix B ...
Page 83: ......
Page 84: ...Copyright Agilent Technologies Inc 2005 E1345 90013 E1345 90013 ...