Eventide ARGUS 3000 - General; 3000 Database;Operating System Replacement

Section 3
OPERATING SYSTEM REPLACEMENT
3.1 General
The operating system ROM(s) are serialized. The serial number provides important information about
the particular Argus in which the ROMs are installed. The serial number displayed on the screen when
the unit is first powered on MUST match the serial number on the identification plate on the rear cover.
DO NOT interchange ROMs from one unit to another.
In the model 3000, the database and operating system are updated in the same procedure. Models 5000
and 7000 require separate procedures for updating the database or operating system. Separate instructions
are given in Sub-section 3.5 for replacing the identification plate.
NOTE
When removing the screws, rake note of their location, as it is important that they be
replaced correctly.
Be sure to return the old board or chips to Eventide Avionics, along with the old identification
plate.
3.2 3000 Database/Operating System Replacement
The 3000*s database and operating system are stored on four ROM chips (U2, U3, U29 and U30) on the
CPU board. It is important that all tour chips in the Argus be from the same set. Do not mix the
replacement chips with the ones being replaced. To replace the ROMs, you must first remove the CPU
board.
Necessary Tools: Small phillips head screwdriver
Slot-head screwdriver (for removing ROM chips)
Remove The CPU Board
1. Remove the screws from the right side panel (panel nearest the operating controls). Note
the position of smaller screws versus larger ones. Remove this panel to expose the CPU
board.
2. The rear cover is attached to the unit housing with five flat-head screws. Remove these
screws.
U Argus Maintenance Manual Part #5006 July, 1993 Page 7
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