Eventide ARGUS 5000 - Appendix 5: in Case of Trouble

Appendix 5: In Case Of Trouble ...
The Argus has been built and tested with careful attention to reliability. It meets FAA
and Military specifications with regard to temperature, altitude, vibration, etc.
Nonetheless, like any piece of equipment, it can fail. The Argus contains no user
serviceable parts, and must be returned to Eventide for repair if it becomes defective.
Because it is part of an avionics system, however, it is very important to determine
what element of the system is defective! For instance, if the GPS isn't working
properly, one could erroneously conclude that the Argus is defective, send it back, and
have us not find a problem. This section is devoted to helping you determine whether
a problem lies with the Argus or with something else. Please read it carefully before
calling us for a return authorization number.
The very best way to find out if a unit is defective is to swap it. If there is another
aircraft available with an Argus installation, or another Argus that can be swapped with
the one suspected to be defective, doing so will almost always give you an immediate
answer as to where the problem lies. Unfortunately, this isn't always possible to do.
Next best is to find your problem in the list below, and try our suggestions.
PROBLEM: The Argus won't turn on.
Does your other avionics gear turn on? If not, check aircraft electrical system!
Check the Argus circuit breaker. If possible, apply bench power to the Argus.
PROBLEM: The switches light up but the CRT screen doesn't.
Check aircraft electrical voltage. The Argus requires at least 11 volts. Confirm that
the brightness control is fully clockwise. If selftest doesn't begin or pass, the Argus is
defective.
PROBLEM: There is a bright vertical or horizontal line (or just a dot) on the
CRT.
If a vertical line persists for more than two or three seconds, or there is a horizontal
line or dot, turn the unit OFF immediately! There is a problem with the display
circuitry, and the Argus must be returned.
July 1999 Argus 5000/7000 Ver. 5.xx Reference Manual Part#141003 176