Operating basics
Fan fault alar
m
CAUTION. If the fan on the rear panel stops operating properly, the internal
components of the instrument could be damaged due to overheating. To prevent
this damage, d isconnect the power cable from the AC power source.
The TG8000 displays the following warning message if the fan on the rear panel
stops operating properly. If this warning message appears, disconnect the power
cable from the AC voltage line and contact your local Tektronix Field Office
or representative.
When the warning message appears, the LCD backlight flashes on and off and
the front-panel buttons are disabled. I f the beeper is enabled in the UTILITY
submen
u, the instrument will beep periodic ally for the duration of a fan fault
condition. (See page 2-27, UTILITY submenu.) If the G PI Alarm Output is
enabled and the GPI Fan Fault alarm is enabled, the GPI interface triggers a
ground closure when a fan fault is detected.
You can operate the buttons temporarily (for approximately 30 seconds) by
pressing the FRONT PANEL ENABLE button until the button illuminates.
During the 30 seconds, you can use the UTILITY menu to view the diagnostics to
see if there are additional hardware failures such as voltages and temperatures.
Aft
er 30 seconds, the fan fault alarm will retrigger if the fan fault condition still
exists and the front panel buttons will be disabled again. In this case, you should
disconnect the AC power source and contact Tektronix to obtain repair service.
TG8000 Multiformat Test Signal Generator User Manual 2–21
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