Eventide ARGUS 3000 - Page 43

3. Remove the left side panel in the same manner as you removed the right side panel.
4. The rear cover is attached to the unit housing with three flat-head screws. Remove these screws.
CAUTION
Do not remove the red-marked screw on the top cover at this time. This screw does not secure the
rear cover. This screw is not as long as the others because there is not as much clearance at this
location. If you remove this screw, be sure to put the correct screw back in this location so as not
to damage the unit.
5. The rear cover is connected to the CPU board. Slowly pull the rear cover out of the unit housing
until the board is exposed approximately 1-1/2 inches.
6. A ribbon cable connects the solder side of the CPU board to the power supply board. Disengage
this connector and slide the CPU board completely out of the unit's housing.
7. Remove the screws securing the bottom cover to the front bezel, and remove the bottom cover.
8. Remove the three screws that connect the top cover to the main power supply. This includes the red-
marked screw and two screws in line with it.
NOTE
Be sure to note the location of the screw marked in red, as it is very important that this screw be
returned to this location when reassembling the unit.
9. Remove the screws that hold the top cover to the front bezel, and remove the top cover. The power
supply mother and daughter boards are now completely exposed.
CAUTION
Do not pull, pinch, nick, or otherwise damage the high voltage lead that runs from the power
supply to the side of the CRT display. Damaging the wire or the insulation at either end can cause
a catastrophic failure inflight.
10. Before removing the daughter board, note its location and orientation on the mother board. (Refer
to Figure 8.) The daughter board is mounted to the mother board in friction type connectors.
Remove the daughter board by gently pulling it straight up and off the mother board.
Replace The Daughter Board
11. Remove the new daughter board from its protective packaging.
12. Align the replacement board in the same location and orientation as the one you just removed.
Carefully line up the pins on the daughter board with the connector on the mother board, and press
on the daughter board until the pins are seated as far as they will go.
Page 38 Argus Maintenance Manual Part #5006 July, 1993