Microprocessor Module Replacement Kit for the Remote Display
4
3015-5577 Rev 2
OPTION A: Threaded Spacer and Two Screws
1. Remove the main board from the enclosure by disconnecting all main board connectors, removing mounting
screws, and carefully lifting the main board from the enclosure standoffs. (Note that this and other steps may not
be required if your microprocessor board is already mounted as shown in Option A.)
2. Attach the threaded standoff to the top of main board by routing one of the screws up through the underside of the
main board and securing it to the standoff. Use Figure 3 as a guide.
3. Remove the new microprocessor module from its packaging, handling the board by the edges only.
4. Orient the new microprocessor so the gold tab and hole are at the bottom left corner (refer to Figure 1).
5. Carefully align the two rows of pins on the back of the processor with the mating socket on the main circuit board
in the RD, then carefully press the microprocessor module firmly into the socket.
NOTE
As a guide, align the larger hole on the microprocessor module with hole in the standoff.
CAUTION
Be sure not to skip or offset the pins to the socket.
6. Feed the second securing screw through the hole in the processor board into the top of the threaded standoff and
secure it using the screwdriver. See the figure below.
Figure 3. Option A Installation
7. Re-attach the main board to the enclosure by carefully placing the main board onto the enclosure standoffs and
securing it with the screws removed earlier.
8. Reattach the main board connectors that you removed earlier.
9. Close the door to the RD and secure the two screws.
10. Apply power to the RD and verify that it performs its initialization procedure.
11. Continue with Section 6.
OPTION B: Snap-in Spacer
1. Insert the plastic snap-in spacer into the securing hole on the mother board. See figure below.
2. Remove the new microprocessor module from its packaging, being careful to handle the board by the edges only.
3. Orient the new microprocessor so the gold tab and hole are at the bottom left corner.
4. Carefully align the two rows of pins on the back of the processor with the mating socket on the main circuit board
of the Remote Display, while simultaneously aligning the snap tab on the spacer with the hole in the
microprocessor board.
