
Y1-03-0266 Rev. A
Page | 14
Lights work
but no
rotation or
elevation
and lights
will not shut
off
First, disconnect the coaxial cable from the MCU and Point pad. With an ohm
meter set to R x 1, check continuity of the coaxial cable by placing 1 probe to the
connector shielding and the other to the center conductor. If the cable is good,
you will get NO meter movement at all. If the cable is bad, you will get a full scale
reading on any meter scale. If you get a full scale reading, replace the coaxial
cable connectors. If you get no reading, then the cable is OK. Turn off the circuit
breaker at the power source, wait 10 seconds and then turn the circuit back on.
This should reset the MCU. Re-check the functions and they should be cleared. If
you still experience the same problems, then the MCU will need to be replaced.
Light flickers
on and off as
it rotates.
Remove four screws from the protection cover (underside of head). Lift the head
from the base and check the slip ring and brush assembly for corrosion. If
corrosion is evident, clean with a wire brush. If either the brush or slip ring
assembly is corroded or pitted beyond repair, they will need to be replaced.
Power to
MCU, but no
light on RCP
and no
functions of
light.
Check the coaxial cable with an ohm meter by placing the probes on each end of
the center conductor on the coaxial cable. If there is no meter movement, replace
or repair the coaxial cable. If it registers a full meter reading, then the coax cable
is ok and it is recommended that the point pad and MCU be sent in for testing and
possible replacement.
Extending
the coaxial
cable
Please be sure to use RG 59 coaxial cable, if there is a need to extend the coax
between the Point pad and the Master Controller or if the existing cable is
damaged and needs to be replaced.
Maximum
cable length
between the
Master
controller
and the RCL
100 light.
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