Troubleshooting; Check For Common Problems; Table 4- -4: Failure Symptoms And Possible Causes - Tektronix DSA8200 Service Manual

Troubleshooting

Check for Common Problems

DSA8200 Digital Serial Analyzer and Modules Service Manual
This section contains information and procedures designed to help you isolate
faulty modules in the instrument. If a module needs to be replaced, follow the
Removal and Installation Procedures located in this section.
Use Table 4- -4 to quickly isolate possible failures. The table lists problems
related to the instrument and possible causes. The list is not exhaustive, but it
may help you eliminate a problem that is quick to fix, such as a blown fuse or
loose cable.
Table 4- - 4: Failure symptoms and possible causes
Symptom
Mainframe will not power on
Front panel light comes on
(mainframe powers on), but
one or more fans will not
operate
Mainframe powers on but no
signal displayed
Controller appears "dead";
power light comes on, but
monitor screen(s) is (are)
blank
Possible cause(s)
Power cord not plugged in.
Failed fuse.
Faulty power supply.
Faulty modules.
Main power switch (rear panel) not on.
Front panel power switch not on.
Monitor not connected properly.
Faulty fan cable.
Defective fan assembly.
Faulty power supply.
Wrong channel is selected, Waveform Selector and Setup
menus.
Module not fully installed into the slot.
Signal cable not connected properly.
Wrong trigger input, check signal cable and Setup menus
are Direct or Prescale.
SO DIMMs incorrectly installed or missing.
Defective ATX board.
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