Mainframe Troubleshooting
TLA 720 Benchtop Chassis and TLA 7XM Expansion Chassis Service Manual
4–39
Table 4–5: Failure symptoms and possible causes (cont.)
Symptom
Possible causes and recommended action
TLA 700 application starts but
modules do not display in System
window
Module firmware has not been updated (reflashed)
The flash jumper was not removed after the module firmware was reflashed.
Power off mainframe and check that all modules are fully inserted.
Module address switches not set correctly. Power off mainframe and remove module. Set
address switches to FF and reinstall module.
Module failure; replace with known-good module or contact your local Tektronix service center.
Mainframe failure; contact your local Tektronix service center.
Expansion mainframe is not recog-
nized by the system.
Expansion mainframe does not show
up in the system window.
Power down the mainframe and expansion mainframe(s).
Check that both of the TLA 7XM expansion modules are firmly seated, and that the mounting
screws on the TLA 7XM expansion modules are tightened.
Remove the two blue expansion cables and the gray expansion cable. Examine the connectors
on the cables for bent or broken pins. Examine the connectors on the expansion mainframe.
Reconnect the two blue expansion cables and the gray expansion cable and tighten the screws
on the connectors. Verify that the cables are not crossed; verify that the cables are connected: A
→
A, B
→
B, and C
→
C.
Power-on the mainframe and expansion mainframe(s).
(The mainframe power must be recycled in order for the ResMan32 (resource manager)
application to correctly configure.)
Expansion mainframe failure; contact your local Tektronix service center.
Expansion mainframe is recognized
by the system, but installed modules
are not.
Power down the mainframe and expansion mainframe(s).
Power-on the mainframe and expansion mainframe(s).
(The mainframe power must be recycled in order for the ResMan32 (resource manager)
application to correctly configure.)
Module address switches not set correctly. Power off mainframe and remove module. Set
address switches to FF and reinstall module.
Power-down all mainframes, install a known good module from the benchtop mainframe into the
expansion mainframe where the modules were not recognized. Power up all mainframes and
retry.
Module failure; contact your local Tektronix service center.
Summary of Contents for TLA 720
Page 13: ...Table of Contents viii TLA 720 Benchtop Chassis and TLA 7XM Expansion Chassis Service Manual...
Page 22: ...Specifications...
Page 23: ......
Page 38: ...Operating Information...
Page 39: ......
Page 105: ...Command Groups 2 66 TLA 720 Benchtop Chassis and TLA 7XM Expansion Chassis Service Manual...
Page 111: ...TEST Subsystem 2 72 TLA 720 Benchtop Chassis and TLA 7XM Expansion Chassis Service Manual...
Page 124: ...Theory of Operation...
Page 125: ......
Page 128: ...Maintenance...
Page 129: ......
Page 155: ...Jumper Settings 4 26 TLA 720 Benchtop Chassis and TLA 7XM Expansion Chassis Service Manual...
Page 178: ...Options...
Page 179: ......
Page 182: ...Diagrams...
Page 183: ......
Page 186: ...Replaceable Mechanical Parts...
Page 187: ......
Page 198: ...Replaceable Parts TLA 720 Benchtop Chassis and TLA 7XM Expansion Chassis Service Manual 7 11...
Page 203: ...Replaceable Parts 7 16 TLA 720 Benchtop Chassis and TLA 7XM Expansion Chassis Service Manual...
Page 204: ...Index...
Page 205: ......
Page 211: ...Index Index 6 TLA 720 Benchtop Chassis and TLA 7XM Expansion Chassis Service Manual...
Page 212: ......
Page 213: ......