I had the ANTENNA WIRE CRACK AND APPEARANTLY IT MIGHT HAVE SHORT CIRCUITED SOMETHING INSIDE MY RECIEVER and NOW it wont read the new antenna I installed. Anyone that can repair it, contact me to pay you and send it for repair.
I have a lifetime subscription and cannot give up this reciever.
I had a similar type problem where i have a lifetime subscription and my XACT VISOR XTR3 unit had a faulty power connection that was driving me nuts. i decided to try and swap out the internal receiver component with a new unactivated unit i bought on ebay. (all the types are out there and pretty cheap even for new)
in opening the new one up i found the only difference from unit to unit is the receiver brain inside the unit, and it is relatively easy to swap out the brain into the body of a new unactivated unit. just four small screws and carefully pull the brain out of the long multi-pin connector. i put the old brain into the new carcass, screwed it back together and it works like a champ. just have some patience in figuring out exactly how your particular unit comes apart, and you will need small screwdrivers and either a small allen-key set or torx set - my old unit had the allen-key screws on the outer case and the newer one had torx screws.
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Fuses only blow when there is a short circuit. In your case it sound like the main amplifier has been playing up and tripping the circuit. But now something has gone completely, but no longer trips the protection circuit. I would have a look inside and pay close attention to the main power amp board. If there is an IC on it suspect that.
some sort of bad connection inside the radios socket
or bad coax
check the antenna with an ohm meter
to see if the coax is shorted out
and also that there is continutity between the center pin of the coax radio plug and the antenna
you can demount the radio and stick a bit of wire in as a quick test
if you get the signal then its something coax related
if not its something to do with the front end of the radios reciever circuit
and you need a radio engineer that fixes car radios and cb etc
they will make it work for sure
i could in ten mins flat ...possibly a transistor has failed
or a bad connection as it comes and goes ...
Have the radio tested first on a dummy load--if ok check the connector on the antenna--Big Stick antennas if old can break inside but a SWR check should reveal if a open antenna or a shorted one----you with a ohm meter should get a reading across the center pin to the threaded part of something like 50 ohms---either the antenna, coax or even the radio....
please do check the terminal connector of the gps to the antenna
connector cable there should be is a voltage reading of 5 volt dc on the gps using a multitester.if the answer is no then your gps receiver
is out of order.if 4 volt to almost 5volt that should be
be ok..next step is to check the gps antenna cable connector
to the gps antenna using multitester a for short or open connection.set the tester to x1 and calibrate setting then test
short cable should reading full almost zero on the scale,open has almost
no resistance at all.a good gps antenna will read a difference
of forward and reverse resistance reading i cannot tell u the actual reading
of the antenna because it all depend on the length of the cable
and the gps antenna model.but it usually work if u test it this way
please do take note that u are very sure of your setting on the
gps it self before u make this test.
You have to match your antenna to your truck. You have to make sure the mount or antenna has a good ground, now if you grab the bottom of your antenna bracket around the stud does this change the noise in your truck. If so then you need to run a ground if not you probably don't have a ground problem, you grabbing it is giving it a ground you can ground it by self tapping screws in the tool box into side of truck. Or if its not a ground problem try another antenna shorter or taller to see if that works and make sure you have at least 18 ft of coax and good coax at that.
Assuming you already tried a different antenna, check antenna connections inside the case ... the antenna connector's centre conductor should be firmly soldered to the circuit board, and another solder connection from the circuit board to the antenna connector barrel. If the antenna connector has been twisted too much, these solder joints may be cracked and you could try re-melting the solder.
There is an internal short that is being detected. This is probably a defective output transistor that is somewhat sensitive to heat. This should be a straightforward repair with a parts cost in the $20 range. Add in the local labor rate for the total cost.
Thoroughly check your antenna connection, be certain the plastic grommet is in place (and not cracked) between the bottom of the antenna adaptor stud and your antenna mount, and check for corrosion in and around your antenna connections. If using a fiberglass antenna, check for cracked outer insulation. If a whip, be sure the Allen screws are tight and the antenna is getting a good connection. If you have a base-loaded whip antenna (Wilson 2000) make sure the base coil plastic case isn't cracked. If you find anything wrong, invest in a new antenna. If all that checks out, buy a new 18 foot piece of coax (around $20, or get the best quality you can afford) and run it to the antenna. You may have skinned the coaxial shielded outer insulation somewhere in the uninstall/install process, it only takes one tiny break to cause problems. Be sure not to run the coax through the door jamb or a window where it WILL be pinched and cause trouble, take time to run it under the dash and out a permanent vent access or through the firewall.
Check the speakers, check the wires, check the set connections (antenna) and if all is good the fault must be inside the set, in that case it would be wise to go no further and let the repair shop handle it.