HTX-10 10-Meter Transceiver
(190-1110A) Troubleshooting Faxback Doc. # 60267
If your transceiver is not working as it should, these suggestions might
help you eliminate the problem. If the transceiver still does not operate
properly, take it to your local RadioShack store for assistance.
Problem Possible Causes Remedies
Trouble with reception. The squelch might need Adjust the squelch.
to be adjusted.
The transmitter might Tune the transmitter to
not be set to an opera- an operating frequency.
ting frequency.
The microphone might Make sure the microphone
not be connected. is connected.
The antenna might not Make sure the antenna is
be connected. connected.
The receive mode might Set the receive mode to
not be properly set. FM, AM, LSB, or SSB.
Trouble with trans- The antenna might not Make sure the antenna is
mission. be connected. connected.
The microphone might Make sure the microphone
not be connected. is connected.
The microphone's push- Press the microphone's
to-talk button might button in fully.
not be fully pressed in.
The microphone's gain Adjust MIC-G.
might not be properly
set.
Transceiver does not The power cord might Make sure the power cord
work at all. not be connected. is connected.
The power cord's fuse Replace the fuse (see
might be blown. "Replacing the Fuse,"
below).
The transceiver should be serviced only by a qualified radio technician.
If you still have problems, tale your transceiver to a local RadioShack
store for assistance.
Noise Reduction
Because your transceiver is exceptionally quiet, any noise you hear is
probably from an external source in your vehicle such as your vehicle's
alternator, radio, or spark plugs.
To solve the problem, you must go to the noise's source. You can
determine the noise's source by turning off the engine and operating the
transceiver with your vehicle's ignition set to ACC. If the noise
decreases, the problem is in your vehicle's ignition or electrical system.
Here are a few hints to help you reduce or eliminate such noise:
Make all transceiver power and antenna wires as short as possible.
Route the power wires away from the antenna wires.
Be sure that the chassis ground connection is secure.
Replace old ignition wires with new, high-voltage, noise suppression
wires.
Install noise suppressors on your spark plugs, or install new spark
plugs that have built in noise suppressors.
If problems persist, check your alternator/generator and regulator
gauges. You can reduce the noise from these sources by using bypass
capacitors at the various output voltage points.
Your local RadioShack store has a wide selection of noise suppression
accessories.
Replacing the Fuse
If the HTX-10 stops operating, you might need to replace the red power
wire's fuse with the supplied spare fuse.
CAUTION: Do not use a fuse with ratings other than those specified here.
Doing so might damage your transceiver.
Follow these steps to replace your transceiver's fuse.
1. Make sure the power source and transceiver are both off.
2. Pull the latches apart on the fuse holder until it opens.
3. If the fuse is blown, replace it. Use only a standard 1-1/4 x 1/4
inch fast-acting fuse with the proper rating. The fuse must be 10
amps.
CAUTION: The supplied fuse has the proper ratings. Make sure you
replace a fuse only with another fuse of the same rating.
4. Reassemble the fuse holder by squeezing it together until it snaps
shut.
(EB 6/30/00)
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