Troubleshooting
Isolating an Assembly (Self-Test)
These procedures will help you isolate a failure to a particular assembly. The major assemblies of the HP E1418A are available on an exchange basis.
Use the following SCPI Common Command query to initiate a module
! Start the
*TST?
! Enter the
The query will return a +0 if no errors are encountered. The return value looks like:
Bit | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 |
| 4 | 3 |
| 2 | 1 | 0 |
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Use |
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| Test Number |
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| Test Information |
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The Test Information bits are not described in this manual. The test number is the number of the first test to fail. This number can be used to isolate a failing assembly. The possible test numbers and probable failing assembly are shown below.
| Test Number | Failing Assembly Indicated | Notes |
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0 | None | All | |
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1 | Main Board |
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| 2 through 9 | Main Board or | Test 2 = channel 1, |
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| Modules | Test 3 = channel 2, etc. |
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| 10 through 17 | Expansion Board or | Test 10 = channel 9, |
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| Modules | Test 11 = channel 10, etc. |
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| 18 through 25 | Main Board |
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| 26 through 33 | Main board |
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| 34 through 41 | Expansion Board |
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| 42 through 43 | Main Board |
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| 44 through 51 | Main Board |
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| 52 through 59 | Expansion Board |
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| 60 through 67 | Main Board |
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| 68 through 75 | Expansion Board |
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Note Since the query returns only the first failure test number, additional failures are possible but not reported by this command.
173 Configuration and Disassembly | Appendix E |
