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Back to Troubleshoot and Repair
Knowing what voice equipment you have will help you in this troubleshooting
guide to know what you should look for. Please know what voice systems you have before
reading through this troubleshooting guide. Each robot voice system should have a receiver
and transmitter inside the robot, and ALSO a receiver and transmitter on your belt.
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Transmitter that goes on belt 101 TX
(Note* This model can also be the transmitter that goes inside the robot)
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Transmitter that is inside the robot 151 TX
(Note* This model can also be the transmitter that goes on the belt)
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Transmitter that is inside the robot VHF UB-10 TX
(Note* This model can also be the transmitter that goes on the belt)
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Receiver that goes on belt. 151 RX
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Receiver that goes inside robot. 331 RX
(Note* the 101 receiver is the
same as the 331 but with a slightly different look)
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Receiver that goes inside robot. UHF RX
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Fixing Voice Problems:
The first thing that you will always want to check when troubleshooting your voice systems
is to make sure that you have sufficient power to your voice units. Each voice unit has a LED
(small light) that will indicate whether or not the unit is getting power. The 331 RX,
101 RX, and UHF RX all have a red power LED that will stay on as long as the unit
is getting power. If these units are not getting power you need to find out why. It could be
that the power button is not turned on, the wiring is unplugged, a fuse has been blown, or
there could be a problem on the main electrical panel. All the other voice units have a red LED
that flashes on then off a single time to indicate that there is power. The light should not
remain on. In many cases, if the red LED remains on, if is indicating that the battery level is
too low and should be replaced. If the LED does not flash on at all it could mean that the
battery is dead or the battery is not making contact with the battery clips (if this is the
case, you can usually bend the battery clips out to solve this problem).
After testing the power for the voice units, you will want to check individual units to find
out where the problem is.
If you cannot speak through the robot...
-In this situation you will first want to make sure that the transmitter on your belt is
getting power.
-If the TX is getting power, then you will want to check the receiver inside the robot to
make sure it is receiving the signal from the transmitter.
Older NADY Voice Systems
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You should observe that when the robot power is on, the power LED (above the on off
switch on this model) should be on. After the transmitter has been turned on the TX
light (underneath the word Wireless on this model) should turn on. If this is
not the case it means that the transmitter is 1. Not on 2. The XMTR
switch is off 3. Out of range or 4. broken or the receiver is 1. Not on, or 2.
broken
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When you turn on this transmitter, the low battery light should go on, then
immediately go off. If it remains on it is because the battery is low. For this model
transmitter, both the AUDIO and XMTR switches need to be on.
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Newer NADY Voice Systems
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The UHF 10 is very similar to the 331 RX (as shown above). You should observe that
when the robot power is on, the power LED should be on. After the transmitter has
been turned on the Diversity light should turn on (either A[Green] or B[Yellow]). If
this is not the case it means that the transmitter is 1. Not on 2. The
Transmitter is in standby mode 3. Out of range or 4. broken. OR the receiver
is 1. Not on, or 2. broken
Note* When speaking in the transmitter, the AF peak light should blink in and out
with your voice.
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When you turn on this transmitter, the low battery light should go on, then
immediately go off. If it remains on it is because the battery is low. For this model
transmitter there is a standby mode. If the transmitter is in the standby mode, you
will not be able to speak to the robot.
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If you have observed the Receiver and found that it is getting power AND is getting the
signal from the transmitter, then another possibility is that there is an intermittent
problem in the wiring that goes from the headset to the transmitter.
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(If you have the older NADY voice system, the plug that on the right is the plug that
goes into the transmitter. The plug on the left only for the transmitters in the
newer NADY systems.)
You should be able to unscrew the coverings for the plugs. After you have done this
you should make sure that the solder joints appear to be good and that there are no
loose wires. In many instances it can appear to have a good solder joint, but the
plug can still have bad or loose wiring and may need fixing or replacing.
(Note* On the 3-pin plug [for older systems] it may be quite difficult to be able to
look at the wiring to see if it has a bad connection. It may be a wise idea to wiggle
the wire around while it is in the transmitter. This will allow you to know if there
is an intermittent wiring problem without having to take the cover off to examine)
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If you cannot hear from the robot...
-In this situation you will first want to examine the transmitter inside the robot and make
sure it is getting power.
-If the TX is getting power, then you will want to check the receiver on your belt to make
sure it is receiving the signal from the transmitter.
Older and Newer NADY Voice Systems
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When you turn the receiver on, the red LED should blink on, then immediately off. If
the red LED remains on, then the battery is low and should be replaced. If the robot
is on (meaning the transmitter should also be on) then the green TX LED should be on.
This means that the receiver is receiving signal from the transmitter. If this light
is on and you still cannot hear from the robot, then it is most likely that the
microphone on the robot is bad, or that the headset has a bad connection (you should
also make sure that the volume is turned up sufficiently). You should test the
headset first. To do this, you should turn the volume up and try to listen for a
?dead? sound. It should sound like the speaker is working but nothing is coming
through. This will become apparent as you turn the volume up and down. If you can
hear the ?dead? noise, and the TX light is on, then the problem is most likely that
the microphone in the robot is bad. If you can't hear any noise at all, then you
should check the plug that goes into ?headphone? on the receiver.
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(Top TX is for newer models; bottom TX is for older models)
For the Transmitter, you should make sure that when you turn the robot on, that the
red LED blinks on, then immediately off. If it does not do this, then you most likely
have a blown fuse, or a wiring problem. If the light does go on then off, and the
receiver's green LED is lit up, then you may wish to check the connection to the
microphone.
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