ACR Electronics RCL-100 Manuale per la risoluzione dei problemi e la sostituzione delle parti - Pagina 12
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TROUBLESHOOTING
Testing the
Use a volt/ohm meter set to DC Voltage. Measure from ground to each color wire,
system with
of the MCU (Master Controller) going out to the light. The voltage should read
all
between 8 to 10 Volts DC, when the point pad is activated. If, for example, you
connected.
want to check the elevation, measure on the RED and WHITE when the Point pad
is pressed to 'down'. There should be 8-10 V on one of these wires.
Motion is OK,
Disconnect the YELLOW and GREEN wires (in the 6-wire wiring harness leading
but no light
out of the Master Controller) and connect the 12V battery test wires to the yellow
and green wires LEADING TO THE LIGHT. If the lamps do not light up, check
the continuity of the yellow and green wires and any splices or terminal
connections through the harness to the searchlight. If the continuity tests OK, the
bulbs must be checked. Do the following:
Please do not try to test the bulbs with a tester/ohm meter as you would a normal
incandescent house bulb. Remove (without touching the bulb with your hand) the
bulb from the socket and connect the leads to a 6V battery to test them. If the
bulbs test good, check for corrosion on the brush assembly mounted at the bottom
of the housing, or on the slip ring assembly mounted in the base.
If there is corrosion on either the brush or slip ring assemblies, gently clean it off
with a fine wire brush or sanding paper and wipe clean with rubbing alcohol. If
the slip ring assembly is pitted, it will need to be replaced.
If the brush and slip ring are OK, and the lamps light up when connected to the
battery, the MCU (Master control unit) needs to be replaced.
Y1-03-0266 Rev. A
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