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Troubleshooting
TLA Series Digitizing Oscilloscope Modules Service Manual
6- 27
If you have available a known-good DSO module, perform the following
procedure:
1.
Remove the suspect DSO module from the mainframe.
2.
Install a known-good DSO module in the same slot as the suspected module.
Remember to set the logical address to FF (see
Setting the Logical Address
on page 2--1).
3.
Power-on the mainframe and check for normal operation.
4.
If the failure symptoms are still present with the known-good DSO module
installed, the problem most likely is in the mainframe, not in the DSO
module.
NOTE
. Viewing the diagnostic window from the Logic Analyzer application may
help you isolate failures to individual modules or to the mainframe.
5.
If your DSO module operates normally, the suspect DSO module needs to be
repaired. Refer to
Troubleshoot the Digitizing Oscilloscope Module
on
page 6--27 for the troubleshooting procedures you need to locate faults
within the DSO module.
If you do not have a known-good module and are not sure the problem is in the
DSO module, perform the following procedure to make sure the mainframe is
not the source of the failure:
H
Perform the troubleshooting procedures in either the portable mainframe
service manual or those in the benchtop controller service manual.
Troubleshoot the DSO Module
Follow the procedure in this section to identify the failed part within the DSO
module.
NOTE
. In addition to the procedure for fault isolation found here, you may
choose to substitute for a suspect Processor Board (A1) or Acquisition Board
(A2) to expedite troubleshooting if you have known-good boards available. See
the
Mechanical Parts List
section to locate the Tektronix part numbers for
replacement parts.
This procedure requires that the module is installed in a fully functional
mainframe. If you have not determined that the mainframe is functional, or if
you suspect the problem might be in a probe or in another module, refer to
Eliminate Other Problem Sources
on page 6--26, above.
Substitute a Good Module
Check the Mainframe
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Страница 116: ...Options 7 2 TLA Series Digitizing Oscilloscope Modules Service Manual...
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