Hardware Troubleshooting
4–28
TLA 720 Benchtop Chassis and TLA 7XM Expansion Chassis Service Manual
Check for Common Problems
Use Table 4–3 to quickly isolate possible failures. The table lists problems
related to the benchtop chassis and possible causes. The list is not exhaustive,
but it may help you eliminate a problem that’s quick to fix, such as a blown fuse
or loose cable.
Table 4–3: Failure symptoms and possible causes
Symptom
Possible Cause(s)
Chassis does not
power on
H
Power connection faulty: check or substitute power cord
H
Fuse blown: check line fuse
H
Chassis power supply failure: contact local Tektronix service
center
Front-panel power switch
light comes on (chassis
powers up), but the blower
will not operate
H
Faulty blower cable
H
Defective blower
H
Faulty power supply
Monitor does not power on
H
Power connection faulty: check or substitute cord
H
Fuse blown: check line fuse
H
Monitor power supply failure: contact local Tektronix service
center
Monitor display is blank
H
Adjust monitor controls for brightness and contrast
H
VGA cable connection faulty: check or substitute VGA cable
H
Monitor failure: contact local Tektronix service center
Chassis does not boot
H
Non-system diskette or floppy in external drive: make sure
computer is booting from hard drive
H
Hard drive failure or corrupted files on hard drive: consult
manufacturer or product literature for service information
Digitizing Oscilloscope or
Logic Analyzer module
and controller do not
power on
H
Modules not fully inserted: make sure front of module is flush
with front panel
H
Chassis not configured properly: consult manufacturer or
product literature for information
H
Chassis power supply failure: contact local Tektronix service
center
Controller does not
power on
H
Module not fully inserted: make sure front of module is flush
with front panel
H
Chassis not configured properly: consult manufacturer or
product literature for information
H
Module failure: contact 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: ......