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BB302 MB50 RCTG MU0407
REMOTE CONTROL TROUBLESHOOTING
GUIDE (MODELS BB302 AND MB50)
Troubleshoot Receiver
STEP 5
Is the TX / RX LED on the receiver fl ashing amberamber?
(TX / RX LED is LED #4)
YES:
Check the LEDs on the remote. Are the TX / RX LEDs
fl ashing rapidly on the remote (10 times per second)?
Continue to test machine functions; move to STEP 6.
NO:
If the TX / RX LEDs ARE NOT fl ashing rapidly on the remote
(10 times per second), try associating a known-good remote to the
receiver.
If a new remote will not associate to the receiver, return the
receiver for service.
If a new remote will associate to the receiver, return the remote to
the factory for service.
STEP 6
The TX / RX LED on the receiver is fl ashing
amberamber.
(TX / RX LED is LED #4)
The TX / RX LEDs on the remote are fl ashing, but the
remote is not controlling the machine.
If NO part of the machine can be controlled:
Check supply voltage:
Is the supply voltage over 28 volts? (Note: very fast “spikes”
count - this may not be detectable on most digital volt
meters)
YES: The receiver is faulting on an over-voltage condition;
this requires power cycle (turn OFF, turn ON) to
regain control. Inspect power supply (battery, battery
lugs, alternator, wiring) and correct any issues.
NO: Continue on; voltage is not too high.
Is the supply voltage under 7 volts?
YES: The receiver is starving for power. Load test the
battery and check the power supply wiring.
NO: Check wiring to ensure that all hydraulic valve coil
returns and any other output load returns are tied
to the same point and that point is tied to battery
negative and the “-VDC” (ground) pin on the receiver.
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