Cobra 29lx issues

[mikew66]

I bought a Cobra 29LX off ebay. It's in excellent physical condition and doesn't appear to have been modified or really used at all. It powers on but that's about it.

It doesn't transmit or receive. When I key the mic, the meter doesn't move. When I tried to calibrate the antenna using a SWR meter, the needle on the meter does not move at all when the mic is keyed.

When I use the radio check feature in the settings, it says rf power output fail.

I tried a different mic and no luck. The radio that was previously in my car worked fine so I don't think it's the antenna set up. I also tried a mag mount antenna I have and no change.

Also, I can barely hear the squelch when it is all the way up and the volume is up.

Sent from my SM-G950U using Tapatalk

 

[jassing]

What is it in now? Do you have a good ground plane?

If it worked before, try moving the antenna & cable to a new location.

 

[chief21]

If that radio has a PA/CB switch, make sure that the switch is in the CB position. Also, confirm that the RF gain knob is not set to Minimum.

 

[MBill]

Sounds like you may have a blown final power amp. Though you still should be able to receive. Do you have a watt meter and dummy
load to check the power output? Anybody you know that has a CB radio that can be used to see if you are actually transmitting? As mentioned before make sure you are in CB mode, not WX or PA. Also not in scan mode. And that dynamike and rf gain are full on.
When you do the antenna check via the menu radio check does it also give you a "fail" for the antenna?