Technical data

5-46 FRU Removal and Replacement
5.5.16 ISA Card Cage Removal and Replacement (Model 400s)
Refer to Figure 5-35 and follow these steps to remove the ISA card cage:
1. Remove the top and side covers, the RFI cover, the HP-IB or blank plate, all
ISA cards, and the ISA backplane:
2. Remove the two screws at the rear-bottom of the ISA card cage holding it to
the chassis.
3. Remove the screw at the rear, left side of the ISA card cage holding it to the
center wall.
4. Remove the five screws at the bottom, right edge of the ISA card cage.
5. Remove the two screws (front and back) on the inside of the ISA card cage.
6. Remove the four screws holding the ISA card cage to the center wall. The ISA
card cage is then disconnected from the center wall.
7. Remove the ISA card cage and the ISA power cable connected to the mother-
board.
To replace the ISA card cage, follow these steps:
CAUTION: While replacing the ISA card cage, verify that the
power switch and LED board cables are clear of
their notch in the ISA card cage.
1. Ensure that the RFI clips are correctly installed on the ISA card cage bottom
plate.
2. Position the ISA card cage against the center wall, placing the ISA power dis
-
tribution cable on top of the bottom plate. The back edge must fit outside of the
chassis. Align the sheet metal dimples with their holes.
3. Start one screw into the second from the front ISA card cage top hole to hold
the ISA card cage in place. Do not tighten the screw.
4. Install the rest of the ISA card cage screws in the bottom, back, inside and top.
5. Look through the front wall and verify that the power switch and LED board
cables are clear of their notch in the ISA card cage.
6. Tighten all of the screws.
7. Replace the rest of the assemblies.