Tektronix 070-9778-03, Руководство по обслуживанию

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Troubleshooting
TLA 711 Color Benchtop Controller Service Manual
6–27
If you do not have a know-good controller, perform the following procedure to
make sure the benchtop chassis is not the source of the failure:
H
Remove all plug-in modules from the benchtop chassis except the controller.
H
Run “signs of life” tests (Primary Troubleshooting Tree in Chapter 6 of the
TLA 711 Color Benchtop Chassis Service Manual).
Troubleshoot the Benchtop Controller Module
Follow the procedure in this section to identify the failed part within the
benchtop controller. This procedure requires that the benchtop chassis is fully
functional. If you have not determined that the benchtop chassis is fully
functional, refer to Eliminating Other Problems Sources on page 6–26.
The basic troubleshooting procedures require no test equipment. There are no
accessible test points to measure voltages or signals within the benchtop
controller.
Testing and adjustments might 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.
The fault isolation procedure for the benchtop controller consists of following the
the primary troubleshooting tree in Figure 6–9.
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 6–32 for further troubleshooting information.
The benchtop controller diagnostics consist of the following tests:
H
Benchtop controller power-on BIOS test
H
Power-on diagnostics
H
QAPlus/WIN diagnostics
H
TLA 700 Mainframe Diagnostics
Power on BIOS test.
On power up, the benchtop controller automatically runs the
power on BIOS test. If the power on BIOS test detects a problem, BIOS error(s)
will be displayed. The BIOS error messages are found in Table 6–9 on
page 6–35.
Check the Benchtop
Chassis
Equipment Required
Fault Isolation Procedure
Benchtop Controller
Diagnostics