Tektronix TLA7AA Series, Service Manual

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Troubleshooting
TLA7AXX/TLA7NAX Logic Analyzer Module Service Manual
6- 39
15. After the logic analyzer completes the power-on diagnostics, select System
Properties from the System menu.
16.
Click the module tab (for example, LA1).
17. Verify that the firmware version for the selected module matches the version
on the label that you recorded in step 13.
18. If the firmware versions do not match, power down the mainframe, remove
the module from the mainframe and update the label.
Overview of Procedures
Table 6--7 provides a brief overview of the troubleshooting, adjustment,
verification, and calibration procedures.
NOTE
. Calibration constants are stored in the LPU NVRAM. You must always
perform a new self calibration and have a Tektronix Service technician complete
the adjustment procedures, the performance verification procedures, and the
certification procedures after you replace the LPU board.
Table 6- 7: Troubleshooting overview
Procedure
Recommended
interval
Purpose When required Documented
Diagnostics (power on
and extended) Incoming inspection
Annually
Verifies basic
functionality During troubleshooting Power on Diagnostics ,
page 6--32
Adjustment:
self calibration and per-
formance verification Annually
As needed
Verifies basic
functionality After board replacement Self Calibration , page
5--1. Adjustments and
performance verification
performed by Tektronix
Service technician
Adjustment: deskew After board replacement
or annually Time-aligns the data
channels After board replacement Performed by Tektronix
Service technician
.
Functional verification Incoming inspection
As needed
Verifies front end and
basic functionality
including probes After board replacement Performance Verification,
page 4--1.
Performance verification Annually or as needed Verifies advertised per-
formance specifications After board replacement Performed by Tektronix
Service technician
.
Calibration (certification) Annual recertification Verifies primary refer-
ences After board replacement Performed by Tektronix
Service technician
.