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Troubleshooting
6- 28
TLA7AXX Logic Analyzer Module Service Manual
Eliminate Other Problem Sources
The logic analyzer module is part of the Tektronix Logic Analyzer Family, which
consists of modules installed in either a benchtop or portable mainframe. The
following procedures will help you eliminate the mainframe and other modules
as possible sources of failures.
If you have available a known-good logic analyzer module, perform the
following procedure:
1.
Remove the suspect logic analyzer module from the mainframe.
2.
Install a known-good logic analyzer module in the same slot as the suspected
module (verify that address switches on the rear of the module are set to
same address as the module that you are replacing).
3.
Power-on the logic analyzer and check for normal operation.
4.
If the failure symptoms are still present with the known-good logic analyzer
module installed, the problem most likely is in the mainframe or in the
attached probes, not in the logic analyzer module.
5.
To eliminate the probes, use known-good probes and verify that the probes
are properly connected to the target system.
NOTE
. Viewing the diagnostic window from the TLA application may help you
isolate failures to individual modules or to the mainframe.
6.
If the logic analyzer operates normally with the known-good logic analyzer
module and with known-good probes, the suspect logic analyzer module
needs to be repaired. Refer to
Troubleshooting the Logic Analyzer Module
on
page 6--29 for additional troubleshooting procedures.
If the logic analyzer module acquires no data or faulty data, the probes may be at
fault. Perform the following procedure to isolate faults to a probe or to the logic
analyzer module.
NOTE
. The procedure below requires that the logic analyzer is functional and
operates normally when the modules are installed.
1.
Verify that the probe is correctly connected to the module and to the target
system.
Substitute a Good Module
Probe-Level Troubleshooting
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Страница 27: ...Introduction xxii TLA7AXX Logic Analyzer Module Service Manual...
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