Eventide ARGUS 5000 - Selftest; Troubleshooting

SELFTEST DISPLAY
Each time the Argus is turned on, it goes through a "selftest" program designed to give
confidence that the hardware is working correctly and that the database hasn't been
corrupted. This selftest is very comprehensive except with regard to such tilings as
display appearance, which must be monitored by observation, and for interface physical
connections. If the selftest passes, you can be sure that the program and the database
have not changed, e.g., there are no "bad bits." Normally, selftest progress isn't
displayed unless a button is pressed between the time the Argus is turned on and the
time it completes. (The results are displayed only very briefly before the screen with
the chart/approval statement and program version and database expiration date comes
on.)
SELF-TEST
IN PROGRESS.
SYSTEM RAM PASSED
RS-232 PASSED
INTERRUPT PASSED
SYSTEM ROM PASSED
CLOCK PASSED
A/D CONV. PASSED
DATA BASE PASSED
SETUP PASSED
FLIGHTPLANS PASSED
ALL TESTS PASSED
Please refer to the Theory of Operation section in the
Reference Manual for information on selftest. It is
important to note that, if selftest FAILS, it generally
means the Argus must be returned to Eventide for
service. The two exceptions to this are the SETUP
and FLIGHTPLANS tests. If improper data is found in
the non-volatile RAM (which holds SETUP and
AMEND and user data settings), it is erased. A failure
message is displayed, and it will usually be necessary to
go through the SETUP and AMEND process again.
If the failure repeats, the unit should be returned for
service. (Please refer to Appendix 6 of the Reference
Manual for return information.)
Troubleshooting
If the Argus passes its selftest but does not work or works incorrectly with the
connected Loran or GPS receiver, the following troubleshooting tips, aided by built-in
diagnostic software, should help you set things right. There are four distinguishable
reasons why the moving map display may not appear on the Argus screen. Three of
them are briefly explained in "A Sample First Flight with the Argus" at the beginning
of this manual. They are covered in more detail here, along with the fourth message.
LRN DATA LOST Message.
July 1999 Argus 5000/7000 Ver. 5.xx Reference Manual Part#141003 194