Eventide ARGUS 3000 - Page 47

9. Remove the screws that hold the right cover to the front bezel, and remove the right hand 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 on page 38.) 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.
Reassemble The Unit
13. Place the right cover in its proper position making sure the mother board fits in the groove in the
right cover for this purpose. Secure the right cover to the front bezel with two flat-head screws.
14. Secure the right cover to the main power supply with three flat-head screws, one of which is the red
screw.
CAUTION
Be sure to replace the red screw in its proper location (on the right cover near the rear of the unit),
as illustrated in Figure 5 on page 16. If you insert a longer screw at this location you will damage
the Argus.
15. Position the left cover in place against the front bezel. Make sure that the mother board fits in the
groove in the cover. Make sure that the high voltage (HV) wire is routed correctly and not pinched
by the yoke support. The high voltage wire must run through the slot in the yoke clamp. Secure
the left hand cover to the front bezel with two flat-head screws.
16. Insert the transfer and CPU boards into the unit housing as follows:
a) Hold the ribbon cable out of the way and insert the boards into the slots formed by the right and
left covers until about one inch of the boards is exposed.
b) Insert the ribbon cable into the connector on the solder side of the CPU board. Hold the ribbon
cable against the solder side of the CPU board and push the boards all the way in.
c) Verify that the tangs on the front edge of the CPU board have engaged in the switch socket on
the front panel bezel. If not, slide the board back out and reinsert, straightening the tangs if needed.
Page 42 Argus Maintenance Manual Part #5006 July, 1993