Eventide ARGUS 3000 - What to Replace; Anti-Static Precautions

The 7000 is designed so that the database board can be replaced without removing the unit from the
aircraft. The key caps can also be replaced while the unit is still mounted in place. For all other repairs
and replacements, the Argus must be first be removed from the aircraft.
1.3 Anti-Static Precautions
Follow standard anti-static precautions when repairing the Argus or handling the circuit boards. Static
electricity can be very damaging to the electronic components that make up the Argus. It is important
to have a clear, clean work space. A conductive surface is best to avoid picking up static charges.
Keep the part to be replaced in its anti-static packaging until you are ready to install it into the Argus.
Make sure any tools you will be using are also clean and free from metal particles.
Begin work only when you have the time to go through the entire procedure without having to get up to
move around. Get yourself comfortable in one spot. Before you open the Argus or the package
containing the replacement part, touch a grounded piece of metal with one hand, and while you are still
grounded, touch the Argus, the replacement part's package, and your tools with the other hand. This
will discharge all the static charges before you start. You should also touch the grounded metal briefly
every few minutes.
1.4 What To Replace
The part that will probably be replaced most often is the database. This information is updated by
Eventide Avionics every 56 days (or every 28 days for the international database). Argus models 5000
and 7000 units which are FAA approved for IFR with IFR approved Loran C, GPS, or Navigation
Management Systems must be updated every 56 days.
In the models 5000 or 7000, the database is located on the database board. When updating the database,
the entire board is replaced.
In the model 3000, the database is contained in four Read Only Memory (ROM) chips on the CPU board,
along with its operating system. All four chips must be replaced at the same time.
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The ordering part numbers for all field-replaceable parts are listed in Table 1. These parts can be ordered
by calling Eventide at (201) 641-1200.
The parts that are DEFINITELY NOT field-replaceable, are the mother board (main power supply
board), Cathode Ray Tube (CRT), front panel bezel, and the deflection yoke. If any of these need to be
replaced, return the entire unit to Eventide Avionics for repair. CONTACT EVENTIDE FOR
RETURN AUTHORIZATION BEFORE RETURNING THE UNIT.
When returning an Argus for any reason, always include a note describing the problem in detail and
giving the name and phone number of someone familiar with the problem. This will allow us to repair
the unit in the least time and at the least expense.
The Argus 3000 Reference Manual and the Argus 5000 & 7000 Installation Manual each contain a trouble
shooting section which can be useful in solving problems. Some of the information is repeated in Section
4, along with additional information, to help you determine which component or board might have to be
replaced.
Page 2 Argus Maintenance Manual Part #5006 July, 1993