No send , recieve or speaker on cobra nightwatch

[Horseranch11b]

Everything is hooked up properly. Changed mics,power cord, good ground. Good antenna. Dials are set properly. I have great swing, no speaker, no send,no recieve, no static. Any ideas? Thanks guys.

 

[kesselk]

I had the exact same problem with my Cobra 29 - it was a bad antenna

 

[Ensnared]

Finals

I once fried the finals in my Cobra and had to have them replaced. I made the stupid mistake of transmitting without the antenna connected.

 

[RFI-EMI-GUY]

Set the RF gain to maximum CW, Delta tune to center, squelch all the way down CCW. Volume full CW. CB/PA to CB, ANL Off. Any noise?

I once bought a "defective" ICOM R-71A because the owner had the knobs all wacky.

 

[SpugEddy]

I had a cobra 148 Nightwatch that was bad out of the box
As it turned out. It was bad solder joints.
If you are comfortable with it, take the cover off the radio
GENTLY push on the printed circuit board near the rear left side
of the radio while it is on. (wear gloves so you don't get zapped)
See if the radio's receive goes in and out. That's exactly what I did
and exactly how I found 2 bad solder joints. Reflowed the joints and the
radio still works today

 

[DrDenny]

I had a cobra 148 Nightwatch that was bad out of the box
As it turned out. It was bad solder joints.
If you are comfortable with it, take the cover off the radio
GENTLY push on the printed circuit board near the rear left side
of the radio while it is on. (wear gloves so you don't get zapped)
See if the radio's receive goes in and out. That's exactly what I did
and exactly how I found 2 bad solder joints. Reflowed the joints and the
radio still works today

Got the same radio, had it for years and loved it!!! It started acting up, intermittently, a love tap would do the job for a while. Now the love is gone. I'm going to look at it, but also looking for a good radio shop in Santa Clarita or San Fernando Valley in CA.

 

[Delta33]

Everything is hooked up properly. Changed mics,power cord, good ground. Good antenna. Dials are set properly. I have great swing, no speaker, no send,no recieve, no static. Any ideas? Thanks guys.

It's only a cheap cb radio... trash it and just buy a New one. Problem solved.

 

[K5MPH]

Have you checked the SWR with an meter......

 

[cmdrwill]

Some CB radios switch the speaker off in the microphone during transmit. They will have a extra wire and switch contact in the mic.

And there are not any good radio shops in the 'valley' anymore.

 

[DrDenny]

[Quote} there are not any good radio shops in the 'valley' anymore.[/quote]
The last one I knew of was the big one in Burbank, the name just escaped me. They did HAM, CB Scanners,etc...
The way it's looking, if you don't "know" someone locally, you're sending it out.