Tektronix TLA7XM Manual Download

Page: 141 / 190

Troubleshooting

6- 54

TLA721 Benchtop & TLA7XM Expansion Mainframe Service Manual

Table 6- 9: Failure symptoms and possible causes (Cont.)

Symptom

Possible causes and recommended action

Mainframe powers on but does not
complete the power-on sequence

Power off mainframe and check that all modules are fully inserted.

If mainframe is a benchtop mainframe, check the status of the SYSTEM FAIL and TEST LEDs
on the benchtop controller. If the modules are fully inserted in the mainframe and either LED
stays on, contact your local Tektronix service center.

Check the status of the READY and ACCESSED LEDs on the front panel of the application
modules. The READY LED turns on when the module passes the power-on diagnostics and
when the module is ready to communicate with the controller. The ACCESSED LED turns on
any time the controller accesses the module.

Check for disk in floppy disk drive; make sure mainframe boots from the hard disk drive.

Check for faulty module. Remove modules one at a time and power-on the mainframe. If
mainframe completes the power-on sequence, replace faulty module.

Possible software failure or corrupted hard disk; try reinstalling the software.

Hard disk drive related symptoms

Benchtop controller fails to boot

Benchtop controller not operating

Faulty hard disk drive, try booting to the floppy disk drive or CD-ROM drive.

Corrupted controller BIOS module firmware, reinstall firmware (refer to the instructions in the

Tektronix Logic Analyzer Family User Manual

Controller BIOS setup problem, verify BIOS settings in the

Tektronix Logic Analyzer Family User

Manual

or check Table 6--12 on page 6--62 for information on BIOS error codes and messages.

Replaceable hard disk drive not installed.

Replaceable hard disk drive or fixed hard disk drive not configured properly for master-slave
operation; reconfigure master-slave jumpers on the respective drives.

Faulty hard disk drive: contact your local Tektronix service center.

Faulty benchtop controller: contact your local Tektronix service center.

Power-on diagnostics fail

Isolate problem to faulty mainframe or to faulty module. Multiple diagnostic failures across
modules indicate a faulty mainframe. Diagnostic failures confined to an single module most
likely indicate a faulty module. Contact your local Tektronix service center.

Mainframe does not recognize
accessories such as monitor, printer,
or keyboard

Check that accessories are properly connected or installed. Try connecting other standard PC
accessories or contact your local Tektronix service center.

CD-ROM drive related failure

Defective CD-ROM drive, substitute known good CD-ROM drive.

Defective CD-ROM drive cable.

Defective CD-ROM drive board.

Incorrect CD-ROM drive configuration in BIOS table, refer to the

Tektronix Logic Analyzer

Family User Manual

for the correct settings.

LA Module merge not allowed in the
Tektronix Logic Analyzer application

Merge cable between LA modules not installed.

LA modules are not compatible: check the merge rules in the online help and in the

Tektronix