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Service Manual
Third edition, June 1997
Note: Make sure the interior of the transmitter housing is com-
pletely dry and clean before replacing the cover. Encased water or
damp cause corrosion of the terminal block and wire leads causing
contact fault. Wipe with a clean and dry cloth if necessary.
Follow the steps below when removing the Electronic Box:
1. Parabolic Antenna: Open the transmitter housing by
removing the eight bolts for the cover.
Cone Antenna: Open the transmitter housing by loos-
ening and removing the large clamp ring around the
rim of the cover.
2. Loosen the strap and lift the Electronic Box straight up.
Be careful not to touch or damage the top Teflon part of
the Antenna Feeder.
3. Place the Electronic Box upside down.
4. If the wires to the wire terminal have not previously
been marked, mark them before removing them. Re-
move the wires from the terminal. If system is switched
on, avoid short circuiting the wires.
5. Connect the wires to the new Electronic Box.
6. Mount the Electronic Box. See to it that the pin on the
Electronic Box fits into the groove on the antenna
feeder.
7. Tighten the strap so the Electronic Box cannot move.
8. Parabolic Antenna: Check that the space inside the
transmitter housing is clean and dry before replacing it.
Make sure the rubber gasket for the transmitter cover is
correctly placed and tighten the bolts cross-wise.
Cone Antenna: Check the O-ring and its groove are
clean and dry. Check that the space inside the transmit-
ter housing is clean and dry before replacing it. Tighten
the clamp ring.