Tektronix TLA 714, Руководство по обслуживанию, Страница: 103 / 159

Troubleshooting
4–56
TLA 714 Color Portable Mainframe Service Manual
Eliminate Other Problem Sources
The portable mainframe is part of the TLA 700 Series Logic Analyzer, which
comprises modules and the portable mainframe. If power-on diagnostics indicate
that an LA or DSO module test failed, troubleshoot the module using the TLA
service manual for the module.
Troubleshoot the Portable Mainframe
Follow the procedure in this section to identify the failed part within the portable
mainframe.
Equipment Required
You will need a digital voltmeter to check power supply voltages, as described on
page 4–60.
Testing might also be required to correct some faults. Under those circumstances,
you will need the test equipment listed in the TLA 700 Series Performance
Verification and Adjustment Procedures manual.
Fault Isolation Procedure
Follow the primary troubleshooting tree in Figure 4–26 for fault isolation. This
tree calls for you to remove any installed modules, run the diagnostics programs,
and check for BIOS errors.
If you are unable to identify any problems through the troubleshooting tree or
through the diagnostic programs refer to Isolating System Problems beginning on
page 4–62 for further troubleshooting information.