Troubleshooting; Isolating An Assembly (Self-Test) - HP E1418A User Manual

Troubleshooting

Isolating an
Assembly
(Self-Test)
Bit 15 14 13
Use
176 Configuration and Disassembly
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
self-test.
! Start the Self-test.
*TST?
! Enter the 16-bit integer returned.
The query will return a +0 if no errors are encountered. The return value
looks like:
12 11 10 9
Test Number
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
0
1
2 through 9
10 through 17
18 through 25
26 through 33
34 through 41
42 through 43
44 through 51
52 through 59
60 through 67
68 through 75
8 7 6 5
None
Main Board
Main Board or Plug-On
Modules
Expansion Board or Plug-on
Modules
Main Board
Main board
Expansion Board
Main Board
Main Board
Expansion Board
Main Board
Expansion Board
4 3 2 1
Test Information
Notes
All Self-tests passed
Test 2 = channel 1,
Test 3 = channel 2, etc.
Test 10 = channel 9,
Test 11 = channel 10, etc.
Appendix E
0