User guide

SENSORRAIL IIIE 8200-0593-03, REV. A
SERVICE GUIDE
18 of 34
CPU Board Replacement
The trolley CPU board is installed in the bottom of
the trolley. It is secured by the corner supporting the
rear sliding contacts and by the RF antenna.
The corner supporting contacts, rear sliding
contacts, and antenna are held by two Allen screws
behind the antenna.
To remove the CPU board:
1. Remove the antenna from its support by
removing the two bolts.
2. Detach the SMA connector from the antenna.
3. Remove the two Allen screws using an M6 Allen
wrench to detach the bracket from the trolley.
Pay attention to the sliding contacts. The
connection wire can easily loosen.
4. On the CPU board, disconnect the main
connector, power connector and the BNC for the
video. Then pull out the board from its grooves.
To install the new CPU board, reverse the above
procedure.
Replacing/Retrofitting Collectors,
Wires, Brackets
1. Remove the trolley from the rail and carefully
place it on its side. Locate the 4-pin connector,
and mark the collector numbers on the trolley
brackets so the wires can be replaced in the
correct order. Wire labels should match the
numbers marked on the brackets.
Note: The picture shows bare aluminum
brackets; the shipped product will be black.
2. Open the black cover and remove the old
brackets using an Allen wrench. Leave the old
collectors on their brackets.
3. Remove the number sleeves from the old wires
and place them on the new wires.
4. Transpose the numbers recorded on the old
brackets to the new brackets.
5. Install new mounting studs on the new brackets
using M5 nuts. Snap the new collectors on the
mounting studs.
6. Install the new brackets, ensuring the Tx antenna
mounts to the bracket that has three bends to
hold the antenna at the correct height.
The smaller bracket mounts on the other side of
the trolley.
BNC
Connector
Main
Connector
Power
Connector
SMA
Connector
CPU Board
Antenna
Sliding
Contacts