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enough power or the LDT’s cable possibly has
a short/open. Readings of no voltage or minimal
voltage (less than 5 volts) may be due to a short/
open in the cable. If reading is not b11
and +28 VDC, go to step 5. If reading is above +28
VDC, adjust power supply or replace.
5. Turn the power supply off.
6. Check the continuity of the individual wires of
the cable between the power supply and the
LDT. Check for continuity from one end of the
cable to the other. Also, verify that no shorts
exist between pins.
7. Reconnect the mating connector to the LDT.
8. Turn power supply on.
9. Using a digital voltmeter, check the power
supply’s + and - terminals for a voltage between
+11 and +28 VDC.
Low voltage readings may indicate a power supply
with a wattage (current) rating that is too low.
(Each LDT requires 3 watts). If the cabling checks
out in step 6 and your voltage is below +11 VDC,
check your power supply current rating. If voltage
is b11 to +28 VDC and the LDT is still
inoperative, contact factory.
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